What is FRP? How are FRP and GRP different? Characteristics of FRP material and FRP tank

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What is FRP?

FRP (Fibreglass Reinforced Polymer) is a type of composite material. As the name suggests, they are made up of two main components: fiberglass that serves as the reinforcing material and polymer that serves as the matrix. In an FRP, the fiber is embedded in the polymer matrix. This structural arrangement confers completely different chemical and physical properties onto the materials than those possessed by the individual constituents.

Figure 1. Composite materials are about to be processed into finished products

There are many different types of resins used in making FRP depending on the application. These plastic resins can include:

Polyurethane
Polyester
Vinylester
Epoxy
Phenol formaldehyde (occasionally)

How are FRP and GRP different?

FRP stands for Fiberglass Reinforced Polymer. Meanwhile, GRP stands for Glass Reinforced Polymer. Both of these terms refer to fiberglass reinforced polymer. They just have different names in each region of the world. While FRP is used in North America, GRP is widely used in Europe and Asia.

Characteristics of FRP material

FRP composites are lighter than steel and concrete, yet they have a high strength-to-weight ratio. They also offer superior corrosion resistance and durability. As a result, FRP composites are an increasingly popular choice for a wide range of applications.

FRP is becoming increasingly popular in a variety of industries due to their exceptional performance properties. For example, FRP doors and windows are resistant to a wide range of corrosive substances and extreme temperature fluctuations. In addition, FRP is lightweight, has excellent electrical and thermal insulation properties, and boast high stiffness ratings.

FRP assembled water tanks are one of the great products that this type of composite brings. With the above outstanding features, FRP is a popular choice for water tanks in apartments, factories, hospitals, etc. In addition, FRP water tanks, specifically the Sunnik brand are other outstanding features:

- FRP isn't subject to erosion or corrosion like steel and concrete. This further prevents leaks and prevents the water from becoming tainted by foreign substances.

- During the production process by hot-pressing method, FRP panels are pressed 6 times and have an additional layer of reinforced glass fiber on the outside to increase the bearing capacity of the panels. During the hot-pressing process, residual Styrene content is also removed. This makes Sunnik's FRP tanks ideal for potable water storage. (Sunnik is WRAS and NSF certified for domestic water safety)

Figure 2. FRP panel surface with reinforced glass fiber layer on the outside

- FRP panels have a dark color that prevents light from passing through, preventing the growth of algae and bacteria. The panels undergo an SMC hot-pressing process, creating a mirror surface that organic matter cannot adhere to.

- Thanks to the flexible characteristics of assembled tanks, FRP panels have many size modules, are easy to package and transport to the construction site, and are suitable for installation in many areas with limited space. In addition, on Sunnik's FRP roof and bottom panels are anti-slip particles to help construction workers and cleaning and maintenance staff ensure safety when working.

Figure 3. FRP panel surface has anti-slip particles

Figure 4. FRP tanks offer flexibility when installed in areas with limited space

- FRP tank installation time is fast, can be used immediately after installation.

- FRP tanks have a long life because the FRP panels have a polyester resin matrix, are waterproof, so they are not corroded by rainwater, near the sea, etc. The ingredients have anti-UV properties so they can be placed out side.

- The price of FRP tanks is low, because it is waterproof, there is no cost for waterproofing. Low maintenance costs.

Stainless steel is an alloy of steel in which the main components are Iron (Fe), Chromium (Cr), Nickel (Ni), Manganese (Mn)... Depending on the percentage of Cr, Ni, Mn... and other additives, stainless steel products have the following lines: stainless steel 201, 208, 304, 316.... Ingredients such as Cr, Ni, Mn creates a protective film for steel against oxidation. In these compounds, Cr is the main ingredient that creates the anti-oxidation properties of stainless steel, making this product shiny and resistant to rust and yellowing.

The international exhibition on water industry, water filtration technology and wastewater treatment in Vietnam (Vietwater 2017) has more than 480 businesses in the water and energy industry from 38 countries and territories participating in the exhibition. this year. There are also 14 international pavilions from England, Europe, France, Germany, Australia, Finland, Belgium, Japan, China, Singapore, Korea, Hungary, Thailand, and Taiwan bringing many technologies, new solutions, equipment and products in the industry throughout the 3-day exhibition.

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{"id":627628,"name":"What is FRP? How are FRP and GRP different? Characteristics of FRP material and FRP tank","desc":"FRP (Fibreglass Reinforced Polymer) is a type of composite material. As the name suggests, they are made up of two main components: fiberglass that serves as the reinforcing material and polymer that serves as the matrix.<\/p>\n","content":"What is FRP?<\/strong><\/p>\n\nFRP (Fibreglass Reinforced Polymer) is a type of composite material. As the name suggests, they are made up of two main components: fiberglass that serves as the reinforcing material&nbsp;and polymer that serves as the matrix. In an FRP, the fiber is embedded in the polymer matrix. This structural arrangement confers completely different chemical and physical properties onto the materials than those possessed by the individual constituents.<\/p>\n\n<img height=\"364\" src=\"\/datafiles\/44085\/upload\/images\/image(27).png\" width=\"546\" \/><\/p>\n\nFigure 1. Composite materials are about to be processed into finished products<\/em><\/p>\n\nThere are many different types of resins used in making FRP depending on the application. These plastic resins can include:<\/p>\n\nPolyurethane \nPolyester \nVinylester \nEpoxy \nPhenol formaldehyde (occasionally)<\/p>\n\nHow are FRP and GRP different?<\/strong><\/p>\n\nFRP stands for Fiberglass Reinforced Polymer. Meanwhile, GRP stands for Glass Reinforced Polymer. Both of these terms refer to fiberglass reinforced polymer. They just have different names in each region of the world. While FRP is used in North America, GRP is widely used in Europe and Asia.<\/p>\n\nCharacteristics of FRP material<\/strong><\/p>\n\nFRP composites are lighter than steel and concrete, yet they have a high strength-to-weight ratio. They also offer superior corrosion resistance and durability. As a result, FRP composites are an increasingly popular choice for a wide range of applications.<\/p>\n\nFRP&nbsp;is&nbsp;becoming increasingly popular in a variety of industries due to their exceptional performance properties. For example, FRP doors and windows are resistant to a wide range of corrosive substances and extreme temperature fluctuations. In addition, FRP is&nbsp;lightweight, has&nbsp;excellent electrical and thermal insulation properties, and boast high stiffness ratings.<\/p>\n\nFRP assembled water tanks are one of the great products that this type of composite brings. With the above outstanding features, FRP is a popular choice for water tanks in apartments, factories, hospitals, etc. In addition, FRP water tanks, specifically the Sunnik <\/strong>brand are other outstanding features:<\/p>\n\n- FRP isn&#39;t subject to erosion or corrosion like steel and concrete. This further prevents leaks and prevents the water from becoming tainted by foreign substances.<\/p>\n\n-&nbsp;During the production process by hot-pressing method, FRP panels are pressed 6 times and have an additional layer of reinforced glass fiber on the outside to increase the bearing capacity of the panels. During the hot-pressing process, residual Styrene content is also removed. This makes Sunnik&#39;s FRP tanks ideal for potable water storage.&nbsp;(Sunnik is WRAS and NSF certified for domestic water safety)<\/p>\n\n<img height=\"500\" src=\"\/datafiles\/44085\/upload\/images\/image(28).png\" width=\"520\" \/><\/p>\n\nFigure 2. FRP panel surface with reinforced glass fiber layer on the outside<\/em><\/p>\n\n- FRP panels have a dark color that prevents light from passing through, preventing the growth of algae and bacteria. The panels undergo an SMC hot-pressing process, creating a mirror surface that organic matter cannot adhere to.<\/p>\n\n- Thanks to the flexible characteristics of assembled tanks, FRP panels have many size modules, are easy to package and transport to the construction site, and are suitable for installation in many areas with limited space. In addition, on Sunnik&#39;s FRP roof and bottom panels&nbsp;are anti-slip particles to help construction workers and cleaning and maintenance staff ensure safety when working.<\/p>\n\n<img height=\"514\" src=\"\/datafiles\/44085\/upload\/images\/image(29).png\" width=\"518\" \/><\/p>\n\nFigure 3. FRP panel surface has anti-slip particles<\/em><\/p>\n\n<img height=\"571\" src=\"\/datafiles\/44085\/upload\/images\/image(30).png\" width=\"575\" \/><\/p>\n\nFigure 4. FRP tanks offer flexibility when installed in areas with limited space<\/em><\/p>\n\n- FRP tank installation time is fast, can be used immediately after installation.<\/p>\n\n- FRP tanks have a long life because the FRP panels have a polyester resin matrix, are waterproof, so they are not corroded by rainwater, near the sea, etc. The ingredients have anti-UV properties so they can be placed out side.<\/p>\n\n-&nbsp;The price of FRP tanks is low, because it is waterproof, there is no cost for waterproofing. Low maintenance costs.<\/p>\n","image_url":"https:\/\/khangnamco.vn\/datafiles\/44085\/upload\/files\/Tin%20t%E1%BB%A9c\/FRP.jpg","image_thumb_url":"https:\/\/khangnamco.vn\/datafiles\/44085\/upload\/thumb_files\/Tin%20t%E1%BB%A9c\/FRP.jpg","tags":["FRP","GRP"],"count_view":3157,"seo_name":"what-is-frp-how-are-frp-and-grp-different-characteristics-of-frp-material-and-frp-tank","date_update":1702657630,"date_created_format":1702660525,"meta_title":"","meta_desc":"","meta_keyword":"What is FRP? How are FRP and GRP different? Characteristics of FRP material and FRP tank","qr_code":"https:\/\/khangnamco.vn\/what-is-frp-how-are-frp-and-grp-different-characteristics-of-frp-material-and-frp-tank","title_page":"News","relate_object_id":627628,"company_logo":"https:\/\/khangnamco.vn\/datafiles\/44085\/upload\/files\/Logo\/Logo%20c%C3%B4ng%20ty%20%28t%C3%A1ch%20n%E1%BB%81n%29.png","company_name":"khangnamco.vn","company_email":"sales@khangnamco.vn","company_phone":"P: +84.28 3851 0539 - M: 0909 150 619","company_address":"26B Da Nam Street, Rach Ong Ward, District 8, HCMC","company_fax":"","date_now":1779617010,"company_tags":["assembled water tank","FRP\/GRP tank","SS tank","Stainless Steel tank","HDG tank","Hot Dipped Galvanized tank","water tank","composite tank","septic tank","chemical storage tank","water storage tank","Wastewater treatment tanks","glass-coated steel tanks"],"search_keyword":null,"facebook_comment":"https:\/\/khangnamco.vn\/frp-la-gi-frp-va-grp-khac-nhau-nhu-the-nao-dac-tinh-cua-frp-va-be-frp","breadscrumb":[{"url":"https:\/\/khangnamco.vn","name":"Home","icon":"","active":false},{"url":"https:\/\/khangnamco.vn\/tin-tuc","name":"News","icon":"","active":false},{"url":"https:\/\/khangnamco.vn\/articles","name":"Articles","icon":"","active":true}],"list_products_tmp":[],"list_section":[{"id":335364,"name":"SECTION-196085","seo_name":"#w30s-section-335364","url":"#w30s-section-335364"},{"id":335363,"name":"SECTION-196468","seo_name":"#w30s-section-335363","url":"#w30s-section-335363"},{"id":335390,"name":"SECTION-196481","seo_name":"#w30s-section-335390","url":"#w30s-section-335390"},{"id":335391,"name":"SECTION-196530","seo_name":"#w30s-section-335391","url":"#w30s-section-335391"},{"id":335362,"name":"SECTION-196218","seo_name":"#w30s-section-335362","url":"#w30s-section-335362"}],"type_page":7,"id_page":181302,"widget_10398755":{"content_data":{"content":""}},"widget_10399001":{"content_data":[{"id":45049,"title":"Viet Nam","code":"vn","is_expires":false,"is_active":1},{"id":45050,"title":"American","code":"us","is_expires":false,"is_active":0}]},"widget_10398758":{"content_data":{"content":""}},"widget_8687953":{"content_data":{"content":"Tags :"}},"widget_8687965":{"content_data":{"content":"Latest news"}},"widget_8687959":{"content_data":{"content":"Search"}},"widget_8687963":{"content_data":{"content":""}},"widget_8687961":{"content_data":[]},"widget_8687974":{"content_data":{"content":"News category"}},"widget_8687981":{"content_data":{"content":"<h2 style=\"text-align:center\">RELATED NEWS<\/h2>\n"}},"widget_8687982":{"content_data":[{"id":696854,"name":"Khang Nam inspects and maintains the water tank of Ecopark CT21-22 project","desc":"Sunnik brand FRP\/GRP tanks are supplied in 2023.<\/p>\n","content":"Located in Van Giang commercial and tourism&nbsp;urban area, Van Giang District, Hung Yen Province.<\/p>\n\nKhang Nam is pleased to supply FRP\/GRP tanks of the brand Sunnik - Malaysia in 2023.<\/p>\n\nIn March&nbsp;2025, Khang Nam implemented water tank maintenance inspection work. After inspection, the water tank still operates normally, with no signs of leaks or rust.<\/p>\n\nThe tank meets the standards SS 245:2014, Greenguard Gold, ISO 9001:2015, and safety standards for drinking water such as NSF, WRAS, etc. Additionally, the tank&#39;s accessories are manufactured according to reputable international standards, ensuring quality, durability, and safety for users:<\/p>\n\n- The FRP panel has been tested for hydrostatic pressure 6 times, meeting the SS 245:2014 standard.<\/p>\n\n- The hot-dip galvanized steel accessories comply with the ISO 1461:2009 standard.<\/p>\n\n- The stainless steel accessories in contact with water are safe for drinking water according to the AS\/NZS 4020:2005 standard.<\/p>\n\n- Other non-metallic accessories are safe for drinking water according to the SS 375:2015 standard.<\/p>\n\nKhang Nam would like to thank the Project Management Board and Contractor for supporting Khang Nam throughout the construction and maintenance inspection process.<\/p>\n\nKhang Nam will always monitor the operation process and conduct periodic maintenance inspection.<\/p>\n\n<img height=\"468\" src=\"\/datafiles\/44085\/upload\/images\/image(92).png\" width=\"624\" \/><\/p>\n\n<img height=\"468\" src=\"\/datafiles\/44085\/upload\/images\/image(93).png\" width=\"624\" \/><\/p>\n\n<img height=\"468\" src=\"\/datafiles\/44085\/upload\/images\/image(94).png\" width=\"624\" \/><\/p>\n\n<img height=\"468\" src=\"\/datafiles\/44085\/upload\/images\/image(95).png\" width=\"624\" \/><\/p>\n","image_url":"https:\/\/khangnamco.vn\/datafiles\/44085\/upload\/files\/Tin%20t%E1%BB%A9c\/B%E1%BA%A3o%20tr%C3%AC%20Ecopark%20CT21-22.jpg","image_thumb_url":"https:\/\/khangnamco.vn\/datafiles\/44085\/upload\/thumb_files\/Tin%20t%E1%BB%A9c\/B%E1%BA%A3o%20tr%C3%AC%20Ecopark%20CT21-22.jpg","tags":["maintenance","Ecopark CT21-22","Swanlake Residences"],"count_view":471,"seo_name":"khang-nam-inspects-and-maintains-the-water-tank-of-ecopark-ct21-22-project","date_update":1745571009,"date_created_format":1745571505,"meta_title":"","meta_desc":"","meta_keyword":"maintenance, Ecopark CT21-22, Swanlake Residences","qr_code":"https:\/\/khangnamco.vn\/khang-nam-inspects-and-maintains-the-water-tank-of-ecopark-ct21-22-project"},{"id":685759,"name":"Khang Nam inspects and maintains the water tank of Hoang Thanh Pearl project","desc":"Sunnik brand FRP\/GRP tank is supplied in 2023.<\/p>\n","content":"Located at 55 K2 Street, Cau Dien Ward, Nam Tu Liem District, Ha Noi City.<\/p>\n\nKhang Nam is pleased to supply FRP\/GRP tank&nbsp;of the brand Sunnik - Malaysia in 2023.<\/p>\n\nIn March&nbsp;2025, Khang Nam implemented water tank maintenance inspection work. After inspection, the water tank still operates normally, with no signs of leaks or rust.<\/p>\n\nThe tank meets the standards SS 245:2014, Greenguard Gold, ISO 9001:2015, and safety standards for drinking water such as NSF, WRAS, etc. Additionally, the tank&#39;s accessories are manufactured according to reputable international standards, ensuring quality, durability, and safety for users:<\/p>\n\n- The FRP panel has been tested for hydrostatic pressure 6 times, meeting the SS 245:2014 standard.<\/p>\n\n- The hot-dip galvanized steel accessories comply with the ISO 1461:2009 standard.<\/p>\n\n- The stainless steel accessories in contact with water are safe for drinking water according to the AS\/NZS 4020:2005 standard.<\/p>\n\n- Other non-metallic accessories are safe for drinking water according to the SS 375:2015 standard.<\/p>\n\nKhang Nam would like to thank the Project Management Board and Contractor for supporting Khang Nam throughout the construction and maintenance inspection process.<\/p>\n\nKhang Nam will always monitor the operation process and conduct periodic maintenance inspection.<\/p>\n\n<img height=\"381\" src=\"\/datafiles\/44085\/upload\/images\/image(79).png\" width=\"508\" \/><\/p>\n\n<img height=\"381\" src=\"\/datafiles\/44085\/upload\/images\/image(80).png\" width=\"508\" \/><\/p>\n\n<img height=\"381\" src=\"\/datafiles\/44085\/upload\/images\/image(81).png\" width=\"508\" \/><\/p>\n","image_url":"https:\/\/khangnamco.vn\/datafiles\/44085\/upload\/files\/Tin%20t%E1%BB%A9c\/B%E1%BA%A3o%20tr%C3%AC%20Ho%C3%A0ng%20Th%C3%A0nh%20Pearl.jpg","image_thumb_url":"https:\/\/khangnamco.vn\/datafiles\/44085\/upload\/thumb_files\/Tin%20t%E1%BB%A9c\/B%E1%BA%A3o%20tr%C3%AC%20Ho%C3%A0ng%20Th%C3%A0nh%20Pearl.jpg","tags":["maintenance","Hoang Thanh Pearl"],"count_view":457,"seo_name":"khang-nam-inspects-and-maintains-the-water-tank-of-hoang-thanh-pearl-project","date_update":1742873656,"date_created_format":1742874216,"meta_title":"","meta_desc":"","meta_keyword":"maintenance, Hoang Thanh Pearl","qr_code":"https:\/\/khangnamco.vn\/khang-nam-inspects-and-maintains-the-water-tank-of-hoang-thanh-pearl-project"},{"id":684890,"name":"Khang Nam inspects and maintains the water tank of Ecopark CT5A project","desc":"Sunnik brand FRP\/GRP tanks are supplied in 2022.<\/p>\n","content":"Located in Van Giang commercial and tourism&nbsp;urban area, Van Giang District, Hung Yen Province.<\/p>\n\nKhang Nam is pleased to supply FRP\/GRP tanks of the brand Sunnik - Malaysia in 2022.<\/p>\n\nIn March&nbsp;2025, Khang Nam implemented water tank maintenance inspection work. After inspection, the water tank still operates normally, with no signs of leaks or rust.<\/p>\n\nThe tank meets the standards SS 245:2014, Greenguard Gold, ISO 9001:2015, and safety standards for drinking water such as NSF, WRAS, etc. Additionally, the tank&#39;s accessories are manufactured according to reputable international standards, ensuring quality, durability, and safety for users:<\/p>\n\n- The FRP panel has been tested for hydrostatic pressure 6 times, meeting the SS 245:2014 standard.<\/p>\n\n- The hot-dip galvanized steel accessories comply with the ISO 1461:2009 standard.<\/p>\n\n- The stainless steel accessories in contact with water are safe for drinking water according to the AS\/NZS 4020:2005 standard.<\/p>\n\n- Other non-metallic accessories are safe for drinking water according to the SS 375:2015 standard.<\/p>\n\nKhang Nam would like to thank the Project Management Board and Contractor for supporting Khang Nam throughout the construction and maintenance inspection process.<\/p>\n\nKhang Nam will always monitor the operation process and conduct periodic maintenance inspection.<\/p>\n\n<img height=\"381\" src=\"\/datafiles\/44085\/upload\/images\/image(73).png\" width=\"508\" \/><\/p>\n\n<img height=\"381\" src=\"\/datafiles\/44085\/upload\/images\/image(74).png\" width=\"508\" \/><\/p>\n\n<img height=\"380\" src=\"\/datafiles\/44085\/upload\/images\/image(75).png\" width=\"507\" \/><\/p>\n","image_url":"https:\/\/khangnamco.vn\/datafiles\/44085\/upload\/files\/Tin%20t%E1%BB%A9c\/B%E1%BA%A3o%20tr%C3%AC%20Ecopark%20CT5A.jpg","image_thumb_url":"https:\/\/khangnamco.vn\/datafiles\/44085\/upload\/thumb_files\/Tin%20t%E1%BB%A9c\/B%E1%BA%A3o%20tr%C3%AC%20Ecopark%20CT5A.jpg","tags":["maintenance","Ecopark CT5A","Haven Park Residences"],"count_view":577,"seo_name":"khang-nam-inspects-and-maintains-the-water-tank-of-ecopark-ct5a-project","date_update":1742465181,"date_created_format":1742465517,"meta_title":"","meta_desc":"","meta_keyword":"maintenance, Ecopark CT5A, Haven Park Residences","qr_code":"https:\/\/khangnamco.vn\/khang-nam-inspects-and-maintains-the-water-tank-of-ecopark-ct5a-project"},{"id":682968,"name":"Khang Nam inspects and maintains the water tank of Wink Hotel Saigon Centre project","desc":"Sunnik brand FRP\/GRP tanks are supplied in 2019.<\/p>\n","content":"Located at 75 Nguyen Binh Khiem Street, Da Kao Ward, District 1, Ho Chi Minh City.<\/p>\n\nKhang Nam is pleased to supply FRP\/GRP tanks of the brand Sunnik - Malaysia in 2019.<\/p>\n\nIn February&nbsp;2025, Khang Nam implemented water tank maintenance inspection work. After inspection, the water tank still operates normally, with no signs of leaks or rust.<\/p>\n\nThe tank meets the standards SS 245:2014, Greenguard Gold, ISO 9001:2015, and safety standards for drinking water such as NSF, WRAS, etc. Additionally, the tank&#39;s accessories are manufactured according to reputable international standards, ensuring quality, durability, and safety for users:<\/p>\n\n- The FRP panel has been tested for hydrostatic pressure 6 times, meeting the SS 245:2014 standard.<\/p>\n\n- The hot-dip galvanized steel accessories comply with the ISO 1461:2009 standard.<\/p>\n\n- The stainless steel accessories in contact with water are safe for drinking water according to the AS\/NZS 4020:2005 standard.<\/p>\n\n- Other non-metallic accessories are safe for drinking water according to the SS 375:2015 standard.<\/p>\n\nKhang Nam would like to thank the Project Management Board and Contractor for supporting Khang Nam throughout the construction and maintenance inspection process.<\/p>\n\nKhang Nam will always monitor the operation process and conduct periodic maintenance inspection.<\/p>\n\n<img height=\"382\" src=\"\/datafiles\/44085\/upload\/images\/image(68).png\" width=\"509\" \/><\/p>\n\n<img height=\"381\" src=\"\/datafiles\/44085\/upload\/images\/image(69).png\" width=\"508\" \/><\/p>\n","image_url":"https:\/\/khangnamco.vn\/datafiles\/44085\/upload\/files\/Tin%20t%E1%BB%A9c\/B%E1%BA%A3o%20tr%C3%AC%20Wink%20SG.jpg","image_thumb_url":"https:\/\/khangnamco.vn\/datafiles\/44085\/upload\/thumb_files\/Tin%20t%E1%BB%A9c\/B%E1%BA%A3o%20tr%C3%AC%20Wink%20SG.jpg","tags":["maintenance","Wink Hotel Saigon Centre","FRP","GRP"],"count_view":441,"seo_name":"khang-nam-inspects-and-maintains-the-water-tank-of-wink-hotel-saigon-centre-project","date_update":1741674017,"date_created_format":1741674487,"meta_title":"","meta_desc":"","meta_keyword":"maintenance, Wink Hotel Saigon Centre, FRP, GRP","qr_code":"https:\/\/khangnamco.vn\/khang-nam-inspects-and-maintains-the-water-tank-of-wink-hotel-saigon-centre-project"},{"id":682054,"name":"Khang Nam inspects and maintains the water tank of HDBank project","desc":"Sunnik brand FRP\/GRP tank is supplied in 2020.<\/p>\n","content":"Located at Street D1 Saigon Hi-Tech Park, Thu Duc City, Ho Chi Minh City.<\/p>\n\nKhang Nam is pleased to supply FRP\/GRP tank&nbsp;of the brand Sunnik - Malaysia in 2020.<\/p>\n\nIn February&nbsp;2025, Khang Nam implemented water tank maintenance inspection work. After inspection, the water tank still operates normally, with no signs of leaks or rust.<\/p>\n\nThe tank meets the standards SS 245:2014, Greenguard Gold, ISO 9001:2015, and safety standards for drinking water such as NSF, WRAS, etc. Additionally, the tank&#39;s accessories are manufactured according to reputable international standards, ensuring quality, durability, and safety for users:<\/p>\n\n- The FRP panel has been tested for hydrostatic pressure 6 times, meeting the SS 245:2014 standard.<\/p>\n\n- The hot-dip galvanized steel accessories comply with the ISO 1461:2009 standard.<\/p>\n\n- The stainless steel accessories in contact with water are safe for drinking water according to the AS\/NZS 4020:2005 standard.<\/p>\n\n- Other non-metallic accessories are safe for drinking water according to the SS 375:2015 standard.<\/p>\n\nKhang Nam would like to thank the Project Management Board and Contractor for supporting Khang Nam throughout the construction and maintenance inspection process.<\/p>\n\nKhang Nam will always monitor the operation process and conduct periodic maintenance inspection.<\/p>\n\n<img height=\"286\" src=\"\/datafiles\/44085\/upload\/images\/image(64).png\" width=\"509\" \/><\/p>\n\n<img height=\"286\" src=\"\/datafiles\/44085\/upload\/images\/image(65).png\" width=\"509\" \/><\/p>\n","image_url":"https:\/\/khangnamco.vn\/datafiles\/44085\/upload\/files\/Tin%20t%E1%BB%A9c\/B%E1%BA%A3o%20tr%C3%AC%20HD%20Bank.jpg","image_thumb_url":"https:\/\/khangnamco.vn\/datafiles\/44085\/upload\/thumb_files\/Tin%20t%E1%BB%A9c\/B%E1%BA%A3o%20tr%C3%AC%20HD%20Bank.jpg","tags":["maintenance","HDBank","FRP","GRP"],"count_view":505,"seo_name":"khang-nam-inspects-and-maintains-the-water-tank-of-hdbank-project","date_update":1741079175,"date_created_format":1741079722,"meta_title":"","meta_desc":"","meta_keyword":"maintenance, HDBank, FRP, GRP","qr_code":"https:\/\/khangnamco.vn\/khang-nam-inspects-and-maintains-the-water-tank-of-hdbank-project"},{"id":680508,"name":"Khang Nam inspects and maintains the water tank of Crown Coffee factory project","desc":"Sunnik brand FRP\/GRP tanks are supplied in 2020.<\/p>\n","content":"Located in Cu Chi Northwest Industrial Park, Ho Chi Minh City.<\/p>\n\nKhang Nam is pleased to supply FRP\/GRP tanks of the brand Sunnik - Malaysia in 2020.<\/p>\n\nIn February&nbsp;2025, Khang Nam implemented water tank maintenance inspection work. After inspection, the water tank still operates normally, with no signs of leaks or rust.<\/p>\n\nThe tank meets the standards SS 245:2014, Greenguard Gold, ISO 9001:2015, and safety standards for drinking water such as NSF, WRAS, etc. Additionally, the tank&#39;s accessories are manufactured according to reputable international standards, ensuring quality, durability, and safety for users:<\/p>\n\n- The FRP panel has been tested for hydrostatic pressure 6 times, meeting the SS 245:2014 standard.<\/p>\n\n- The hot-dip galvanized steel accessories comply with the ISO 1461:2009 standard.<\/p>\n\n- The stainless steel accessories in contact with water are safe for drinking water according to the AS\/NZS 4020:2005 standard.<\/p>\n\n- Other non-metallic accessories are safe for drinking water according to the SS 375:2015 standard.<\/p>\n\nKhang Nam would like to thank the Project Management Board and Contractor for supporting Khang Nam throughout the construction and maintenance inspection process.<\/p>\n\nKhang Nam will always monitor the operation process and conduct periodic maintenance inspection.<\/p>\n\n<img height=\"510\" src=\"\/datafiles\/44085\/upload\/images\/image(59).png\" width=\"510\" \/><\/p>\n\n<img height=\"510\" src=\"\/datafiles\/44085\/upload\/images\/image(60).png\" width=\"510\" \/><\/p>\n\n<img height=\"509\" src=\"\/datafiles\/44085\/upload\/images\/image(61).png\" width=\"509\" \/><\/p>\n","image_url":"https:\/\/khangnamco.vn\/datafiles\/44085\/upload\/files\/Tin%20t%E1%BB%A9c\/B%E1%BA%A3o%20tr%C3%AC%20Crown%20Coffee.JPG","image_thumb_url":"https:\/\/khangnamco.vn\/datafiles\/44085\/upload\/thumb_files\/Tin%20t%E1%BB%A9c\/B%E1%BA%A3o%20tr%C3%AC%20Crown%20Coffee.JPG","tags":["maintenance","Crown Coffee factory","FRP","GRP"],"count_view":567,"seo_name":"khang-nam-inspects-and-maintains-the-water-tank-of-crown-coffee-factory-project","date_update":1740714360,"date_created_format":1740714782,"meta_title":"","meta_desc":"","meta_keyword":"maintenance, Crown Coffee factory, FRP, GRP","qr_code":"https:\/\/khangnamco.vn\/khang-nam-inspects-and-maintains-the-water-tank-of-crown-coffee-factory-project"},{"id":658766,"name":"Understanding UL and Greenguard Gold certifications: Gold standards for safety and environmental health","desc":"In today&rsquo;s world, where safety and health are paramount, choosing products that meet high-quality standards is crucial. Two of the most prestigious certifications ensuring product quality and safety are UL and Greenguard Gold. Below, we will explore these certifications and their importance in protecting health and the environment.<\/p>\n","content":"In today&rsquo;s world, where safety and health are paramount, choosing products that meet high-quality standards is crucial. Two of the most prestigious certifications ensuring product quality and safety are UL and Greenguard Gold. Below, we will explore these certifications and their importance in protecting health and the environment.<\/p>\n\n1. UL certification (Underwriters Laboratories)<\/strong><\/p>\n\nAbout UL:<\/strong><\/p>\n\nUnderwriters Laboratories (UL) is an independent, global safety science organization headquartered in the United States. Established in 1894, UL provides testing, certification, and consulting services for a wide range of products and systems, from electrical devices to building materials. UL has built a strong reputation for delivering reliable standards and certifications, ensuring that products meet stringent safety requirements.<\/p>\n\nUL Certification:<\/strong><\/p>\n\nThe UL certification is a mark of assurance that a product has undergone rigorous testing and evaluation to ensure safety in use. UL standards cover, but are not limited to:<\/p>\n\n<ul>\n\t<li style=\"text-align: justify;\">Electrical Safety:<\/strong> Assessing risks related to fire and electrical hazards.<\/li>\n\t<li style=\"text-align: justify;\">Performance:<\/strong> Ensuring that the product performs as advertised.<\/li>\n\t<li style=\"text-align: justify;\">Quality:<\/strong> Testing the durability and reliability of products under various conditions.<\/li>\n<\/ul>\n\n<h3 style=\"text-align: center;\"><img height=\"263\" src=\"\/datafiles\/44085\/upload\/images\/image(48).png\" width=\"290\" \/><\/h3>\n\n2. Greenguard Gold certification<\/strong><\/p>\n\nAbout Greenguard:<\/strong><\/p>\n\nGreenguard, a certification organization under UL Environment (a division of UL), specializes in indoor air quality. Established to improve indoor air quality and safeguard human health, Greenguard evaluates and certifies products used in interior design and construction. Greenguard offers two levels of certification: Greenguard and Greenguard Gold, with Greenguard Gold being the more stringent of the two.<\/p>\n\nGreenguard Gold certification:<\/strong><\/p>\n\nGreenguard Gold certification is the gold standard for assessing indoor air quality. To achieve this certification, a product must pass rigorous tests for:<\/p>\n\n<ul>\n\t<li style=\"text-align: justify;\">Volatile Organic Compounds (VOCs):<\/strong> Measuring emissions of organic compounds that can contribute to indoor air pollution.<\/li>\n\t<li style=\"text-align: justify;\">Other Pollutants:<\/strong> Checking for the presence of additional harmful substances that could impact human health.<\/li>\n<\/ul>\n\nA product certified with Greenguard Gold ensures that it is not only safe to use but also contributes to a healthier indoor environment, reducing the risk of health issues such as allergies, asthma, and respiratory problems.<\/p>\n\n<img height=\"386\" src=\"\/datafiles\/44085\/upload\/images\/image(49).png\" width=\"288\" \/><\/p>\n\n&diams; Introducing our Sunnik&nbsp;water tank from Malaysia<\/strong><\/p>\n\nWe are proud to introduce our Sunnik water tank from Malaysia, designed not only to meet your water storage needs efficiently but also to ensure safety and environmental friendliness. Our product is certified with UL, demonstrating the highest levels of safety and performance, and has also received Greenguard Gold certification. This confirms that our modular water tank is free from harmful emissions and contributes to a healthier environment.<\/p>\n\nWith UL and Greenguard Gold certifications, you can trust that our&nbsp; water tank is a reliable choice for both safety and health. We are committed to providing high-quality products that protect the well-being of you and your family throughout their use.<\/p>\n","image_url":"https:\/\/khangnamco.vn\/datafiles\/44085\/upload\/files\/Tin%20t%E1%BB%A9c\/UL%20v%C3%A0%20Greenguard%20Gold.jpg","image_thumb_url":"https:\/\/khangnamco.vn\/datafiles\/44085\/upload\/thumb_files\/Tin%20t%E1%BB%A9c\/UL%20v%C3%A0%20Greenguard%20Gold.jpg","tags":["UL","Greenguard Gold","Sunnik"],"count_view":1140,"seo_name":"understanding-ul-and-greenguard-gold-certifications-gold-standards-for-safety-and-environmental-health","date_update":1725419746,"date_created_format":1725421045,"meta_title":"","meta_desc":"","meta_keyword":"UL, Greenguard Gold, Sunnik","qr_code":"https:\/\/khangnamco.vn\/understanding-ul-and-greenguard-gold-certifications-gold-standards-for-safety-and-environmental-health"},{"id":649487,"name":"Stainless steel and steel","desc":"Stainless steel and steel&nbsp;are alloy steels with unique strengths and applications. Understanding the difference between these two types of steel is fundamental to choosing the right material for the project.&nbsp;<\/p>\n","content":"Stainless steel and steel&nbsp;are alloy steels with unique strengths and applications. Understanding the difference between these two types of steel is fundamental to choosing the right material for the project.&nbsp;<\/p>\n\n<img height=\"337\" src=\"\/datafiles\/44085\/upload\/images\/image(43).png\" width=\"509\" \/> \nThe difference between steel and stainless steel lies in their composition and properties<\/em><\/p>\n\nGeneral introduction to&nbsp;steel vs stainless steels<\/strong><\/p>\n\nSteel is an alloy of iron and carbon, combined with a number of other elements such as Nickel, Molybdenum, Manganese, Titanium... to determine the mechanical properties. Steel is a metallic material so it has metallic luster, strong electrical and thermal conductivity. At temperatures of 500 - 600 degrees Celsius, steel becomes ductile and its strength decreases. At -45 degrees Celsius, steel is brittle and prone to cracking.<\/p>\n\nStainless steel is also a type of alloy steel commonly used in life. The difference is that they have a minimum Chromium content of 10.5 wt% and a maximum of 1.2 wt% Carbon. Thanks to this special composition, stainless steel has outstanding resistance to corrosion and rust.<\/p>\n\n<img height=\"768\" src=\"\/datafiles\/44085\/upload\/images\/image(44).png\" width=\"512\" \/> \nStainless steel is generally stronger than conventional steel in various applications due to its unique composition and properties<\/em><\/p>\n\nLearn about the difference in properties of steel and stainless steel<\/strong><\/p>\n\nSteel vs. stainless can be based on the features in property of steel below:<\/p>\n\nCorrosion resistance<\/em><\/p>\n\nCompared to conventional steel, stainless steel has superior corrosion resistance thanks to its 10.5% Chromium content. When exposed to outside air, chromium creates a layer of Chromium Oxide (III) that cannot be seen with the naked eye, so the surface of stainless steel is always shiny. Molybdenum in stainless steel is also highly resistant to corrosion, even in acidic environments.<\/p>\n\nStrength<\/em><\/p>\n\nIs stainless steel stronger than steel? Steel is a material with high tensile strength ranging from 400 - 1882 MPa, good bearing capacity. Meanwhile, the tensile strength of stainless steel is about 518 - 827 MPa, with standard strength, heat resistance and hardness.<\/p>\n\nTherefore, while stainless steel can be strong in some applications, high-carbon steel can have a higher tensile strength than some types of stainless steel.<\/p>\n\nDuctility<\/em><\/p>\n\nThe Carbon content in steel is no more than 2.14% by weight. The more Carbon in steel, the higher the hardness and durability of the steel. While stainless steel only has a maximum of 1.2 wt% Carbon, it is more flexible and easier to shape than conventional steel.<\/p>\n\nAppearance<\/em><\/p>\n\nStainless steel has a high Chromium content, so it has a smooth, shiny appearance. For applications requiring high aesthetics, stainless steel is a more ideal material than conventional steel.<\/p>\n\nMagnetism<\/em><\/p>\n\nUsually people still think that stainless steel is a non-magnetic material. In fact, the structure of the metal will determine whether stainless steel is magnetic or not. Of the 4 groups of stainless steel, only the Austenitic group is non-magnetic and the remaining 3 groups are all magnetic. Therefore, if the stainless steel you are using belongs to the magnetic Martensitic, Ferritic or Duplex groups, then when tested with a magnet, the stainless steel will still be attracted like ferromagnetic materials.<\/p>\n\n<img height=\"356\" src=\"\/datafiles\/44085\/upload\/images\/image(45).png\" width=\"509\" \/> \nWhat is the difference between steel and stainless steel?<\/em><\/p>\n\nSteel vs stainless steel: which is the better cost?<\/strong><\/p>\n\nThe input materials of steel are mainly Iron, Carbon and some other chemical elements, while the Chromium content in stainless steel is very high, further increasing the cost. The steel production process is also simpler than stainless steel, optimizing energy and labor costs. In addition, processing and manufacturing stainless steel requires high expertise and complexity, leading to the price of finished stainless steel being more expensive than steel products.<\/p>\n\nHow is the difference between the applications of steel vs stainless steel<\/strong><\/p>\n\nStainless steel stands out with its resistance to corrosion, rust and extremely high aesthetics, so it can work in many harsh environments such as the petrochemical field, aerospace, marine... Stainless steel does not contain chemicals harmful to users&#39; health, so it is an ideal material for use in the medical and food industries.<\/p>\n\nMeanwhile, steel has high mechanical properties, has many different types and uses, so it is applied in a variety of industries such as construction, mechanics, shipbuilding...<\/p>\n\nConclusion on the most distinctive differences<\/strong><\/p>\n\n<table class=\"Table\" style=\"width:552.5pt; background:white; border-collapse:collapse; border:solid windowtext 1.0pt\" width=\"737\">\n\t<tbody>\n\t\t<tr>\n\t\t\t<td style=\"border:solid windowtext 1.0pt; background:white; padding:11.25pt 11.25pt 11.25pt 11.25pt\">\n\t\t\tFactors<\/span><\/p>\n\t\t\t<\/td>\n\t\t\t<td style=\"background:white;border:solid windowtext 1.0pt;padding:11.25pt 11.25pt 11.25pt 11.25pt;\">\n\t\t\tSteel<\/span><\/p>\n\t\t\t<\/td>\n\t\t\t<td style=\"background:white;border:solid windowtext 1.0pt;padding:11.25pt 11.25pt 11.25pt 11.25pt;\">\n\t\t\tStainless steel<\/span><\/p>\n\t\t\t<\/td>\n\t\t<\/tr>\n\t\t<tr>\n\t\t\t<td style=\"background:white;border:solid windowtext 1.0pt;padding:11.25pt 11.25pt 11.25pt 11.25pt;\">\n\t\t\tKey raw materials<\/span><\/p>\n\t\t\t<\/td>\n\t\t\t<td style=\"background:white;border:solid windowtext 1.0pt;padding:11.25pt 11.25pt 11.25pt 11.25pt;\">\n\t\t\tMade of Iron, Carbon and some other metals<\/span><\/p>\n\t\t\t<\/td>\n\t\t\t<td style=\"background:white;border:solid windowtext 1.0pt;padding:11.25pt 11.25pt 11.25pt 11.25pt;\">\n\t\t\tMade of Iron, Chromium and some other metals<\/span><\/p>\n\t\t\t<\/td>\n\t\t<\/tr>\n\t\t<tr>\n\t\t\t<td style=\"background:white;border:solid windowtext 1.0pt;padding:11.25pt 11.25pt 11.25pt 11.25pt;\">\n\t\t\tStrength<\/span><\/p>\n\t\t\t<\/td>\n\t\t\t<td style=\"background:white;border:solid windowtext 1.0pt;padding:11.25pt 11.25pt 11.25pt 11.25pt;\">\n\t\t\tHigh tensile strength, susceptible to corrosion and rust in natural conditions, low heat resistance<\/span><\/p>\n\t\t\t<\/td>\n\t\t\t<td style=\"background:white;border:solid windowtext 1.0pt;padding:11.25pt 11.25pt 11.25pt 11.25pt;\">\n\t\t\tLower tensile strength, easy to shape, extremely good resistance to corrosion and rust<\/span><\/p>\n\t\t\t<\/td>\n\t\t<\/tr>\n\t\t<tr style=\"height:1.0pt\">\n\t\t\t<td style=\"background:white;border:solid windowtext 1.0pt;padding:11.25pt 11.25pt 11.25pt 11.25pt;\">\n\t\t\tApplication<\/span><\/p>\n\t\t\t<\/td>\n\t\t\t<td style=\"background:white;border:solid windowtext 1.0pt;padding:11.25pt 11.25pt 11.25pt 11.25pt;\">\n\t\t\tUsed in civil construction, equipment, automobile components...<\/span><\/p>\n\t\t\t<\/td>\n\t\t\t<td style=\"background:white;border:solid windowtext 1.0pt;padding:11.25pt 11.25pt 11.25pt 11.25pt;\">\n\t\t\tUsed in the fields of medicine, food, furniture, chemicals...<\/span><\/p>\n\t\t\t<\/td>\n\t\t<\/tr>\n\t<\/tbody>\n<\/table>\n\n&nbsp;<\/p>\n\nReference source: Ngoc Cam - Mrs Steel<\/p>\n","image_url":"https:\/\/khangnamco.vn\/datafiles\/44085\/upload\/files\/Tin%20t%E1%BB%A9c\/Th%C3%A9p%20v%C3%A0%20inox.jpg","image_thumb_url":"https:\/\/khangnamco.vn\/datafiles\/44085\/upload\/thumb_files\/Tin%20t%E1%BB%A9c\/Th%C3%A9p%20v%C3%A0%20inox.jpg","tags":["Stainless Steel","Steel"],"count_view":2117,"seo_name":"stainless-steel-and-steel","date_update":1718262281,"date_created_format":1718264395,"meta_title":"","meta_desc":"","meta_keyword":"Stainless Steel, Steel","qr_code":"https:\/\/khangnamco.vn\/stainless-steel-and-steel"},{"id":625474,"name":"Khang Nam inspects and maintains the water tank of The River Thu Thiem project","desc":"Sunnik brand FRP\/GRP tanks are supplied in 2021.<\/p>\n","content":"Located in Thu Thiem New Urban Area, Thu Duc City, Ho Chi Minh City.<\/p>\n\nThe River Thu Thiem project is located at the intersection of Vong Cung Avenue and Nguyen Co Thach Street right past Thu Thiem 1 bridge. This is a very convenient location for trade links with the city center.&nbsp;<\/p>\n\nKhang Nam is pleased to supply FRP\/GRP tanks of the brand Sunnik - Malaysia in 2021.<\/p>\n\nIn December 2023, Khang Nam implemented water tank maintenance inspection work. After inspection, the water tank still operates normally, with no signs of leaks or rust.<\/p>\n\nKhang Nam would like to thank the Project Management Board and Contractor for supporting Khang Nam throughout the construction and maintenance inspection process.<\/p>\n\nKhang Nam will always monitor the operation process and conduct periodic maintenance inspection.<\/p>\n\n<img height=\"697\" src=\"\/datafiles\/44085\/upload\/images\/image(20).png\" width=\"523\" \/><\/p>\n\n<img height=\"391\" src=\"\/datafiles\/44085\/upload\/images\/image(21).png\" width=\"522\" \/><\/p>\n\n<img height=\"391\" src=\"\/datafiles\/44085\/upload\/images\/image(22).png\" width=\"521\" \/><\/p>\n\n&nbsp;<\/p>\n","image_url":"https:\/\/khangnamco.vn\/datafiles\/44085\/upload\/files\/Tin%20t%E1%BB%A9c\/B%E1%BA%A3o%20tr%C3%AC%20Th%E1%BB%A7%20Thi%C3%AAm.jpg","image_thumb_url":"https:\/\/khangnamco.vn\/datafiles\/44085\/upload\/thumb_files\/Tin%20t%E1%BB%A9c\/B%E1%BA%A3o%20tr%C3%AC%20Th%E1%BB%A7%20Thi%C3%AAm.jpg","tags":["maintenance","The River Thu Thiem","FRP","GRP"],"count_view":916,"seo_name":"khang-nam-inspects-and-maintains-the-water-tank-of-the-river-thu-thiem-project","date_update":1701756540,"date_created_format":1701757006,"meta_title":"","meta_desc":"","meta_keyword":"maintenance, The RIver Thu Thiem, FRP, GRP","qr_code":"https:\/\/khangnamco.vn\/khang-nam-inspects-and-maintains-the-water-tank-of-the-river-thu-thiem-project"},{"id":625014,"name":"Khang Nam inspects and maintains the water tank of Metro Ben Thanh project","desc":"Sunnik brand hot-dip galvanized steel tank is supplied in 2021.<\/p>\n","content":"Project is located in Ben Thanh Ward, District 1, Ho Chi Minh City. Metro Line No. 1, also known as the Ben Thanh &ndash; Suoi Tien Metro line, is an urban railway line belonging to the Ho Chi Minh City Urban Railway system.<\/p>\n\nKhang Nam is pleased to supply hot-dip galvanized steel tank&nbsp;of the brand Sunnik - Malaysia in 2021.<\/p>\n\nIn December 2023, Khang Nam implemented water tank maintenance inspection work. After inspection, the water tank still operates normally, with no signs of leaks or rust.<\/p>\n\nKhang Nam would like to thank the Project Management Board and Contractor for supporting Khang Nam throughout the construction and maintenance inspection process.<\/p>\n\nKhang Nam will always monitor the operation process and conduct periodic maintenance inspection.<\/p>\n\n<img height=\"696\" src=\"\/datafiles\/44085\/upload\/images\/image(15).png\" width=\"522\" \/><\/p>\n\n<img height=\"699\" src=\"\/datafiles\/44085\/upload\/images\/image(16).png\" width=\"524\" \/><\/p>\n","image_url":"https:\/\/khangnamco.vn\/datafiles\/44085\/upload\/files\/Tin%20t%E1%BB%A9c\/B%E1%BA%A3o%20Tr%C3%AC%20Metro%20B%E1%BA%BFn%20Th%C3%A0nh.jpg","image_thumb_url":"https:\/\/khangnamco.vn\/datafiles\/44085\/upload\/thumb_files\/Tin%20t%E1%BB%A9c\/B%E1%BA%A3o%20Tr%C3%AC%20Metro%20B%E1%BA%BFn%20Th%C3%A0nh.jpg","tags":["maintenance","Metro Ben Thanh","HDG"],"count_view":880,"seo_name":"khang-nam-inspects-and-maintains-the-water-tank-of-metro-ben-thanh-project","date_update":1701679848,"date_created_format":1701680609,"meta_title":"","meta_desc":"","meta_keyword":"maintenance, Metro Ben Thanh, HDG, Hot dip galvanized","qr_code":"https:\/\/khangnamco.vn\/khang-nam-inspects-and-maintains-the-water-tank-of-metro-ben-thanh-project"},{"id":617428,"name":"Khang Nam inspects and maintains 304 stainless steel tank assembled with bolts","desc":"The project is located in Song Than 3 Industrial Park and is using 304 stainless steel tank&nbsp;assembled with bolts from the brand Sunnik - Malaysia.<\/p>\n","content":"The project is located in Song Than 3 Industrial Park, Phu Tan Ward, Thu Dau Mot City, Binh Duong Province using 304 stainless steel tank assembled with bolts brand Sunnik - Malaysia.<\/p>\n\nThe tank has been in operation for 8 years. In March 2023, Khang Nam conducted a survey of the water tank, maintained and replaced old accessories such as sealant, bolts... and continued to provide warranty to the Owner.<\/p>\n\nThanks to the flexibility, ease of maintenance and repair of tank assembled with bolts, maintenance time is quick. The water tank quickly returned to normal operation, without much interruption to the factory&#39;s operating time.<\/p>\n\n<img height=\"631\" src=\"\/datafiles\/44085\/upload\/images\/image(11).png\" width=\"526\" \/><\/p>\n\n<img height=\"597\" src=\"\/datafiles\/44085\/upload\/images\/image(12).png\" width=\"524\" \/><\/p>\n","image_url":"https:\/\/khangnamco.vn\/datafiles\/44085\/upload\/files\/Tin%20t%E1%BB%A9c\/B%E1%BA%A3o%20tr%C3%AC%20b%E1%BB%93n%20inox.jpg","image_thumb_url":"https:\/\/khangnamco.vn\/datafiles\/44085\/upload\/thumb_files\/Tin%20t%E1%BB%A9c\/B%E1%BA%A3o%20tr%C3%AC%20b%E1%BB%93n%20inox.jpg","tags":["maintenance","SS304"],"count_view":1014,"seo_name":"khang-nam-inspects-and-maintains-304-stainless-steel-tank-assembled-with-bolts","date_update":1700118421,"date_created_format":1700124159,"meta_title":"","meta_desc":"","meta_keyword":"maintenance, SS304","qr_code":"https:\/\/khangnamco.vn\/khang-nam-inspects-and-maintains-304-stainless-steel-tank-assembled-with-bolts"},{"id":615822,"name":"Impact of marine environment on TIG welded 304 stainless steel tank","desc":"Stainless steel is an alloy of steel in which the main components are Iron (Fe), Chromium (Cr), Nickel (Ni), Manganese (Mn)...<\/p>\n\nDepending on the percentage of Cr, Ni, Mn... and other additives, stainless steel products have the following lines: stainless steel 201, 208, 304, 316.... Ingredients such as Cr, Ni, Mn creates a protective film for steel against oxidation.<\/p>\n\nIn these compounds, Cr is the main ingredient that creates the anti-oxidation properties of stainless steel, making this product shiny and resistant to rust and yellowing.<\/p>\n","content":"I. STAINLESS STEEL MATERIAL<\/strong><\/p>\n\nStainless steel is an alloy of steel in which the main components are Iron (Fe), Chromium (Cr), Nickel (Ni), Manganese (Mn)...<\/p>\n\nDepending on the percentage of Cr, Ni, Mn... and other additives, stainless steel products have the following lines: stainless steel 201, 208, 304, 316.... Ingredients such as Cr, Ni, Mn creates a protective film for steel against oxidation.<\/p>\n\nIn these compounds, Cr is the main ingredient that creates the anti-oxidation properties of stainless steel, making this product shiny and resistant to rust and yellowing.<\/p>\n\nII.&nbsp;DOES TIG WELDED 304 STAINLESS STEEL TANK&nbsp;RUST?<\/strong><\/p>\n\n1.&nbsp;In an environment without sea salt<\/strong><\/p>\n\nIn environmental conditions without sea salt, TIG welded 304 stainless steel tanks can still rust due to the following reasons:<\/p>\n\n- Due to the flat panels production process at the factory, the final steps such as soaking and annealing to remove Fe residue are not thorough, leading to free Fe content remaining on the surface.<\/p>\n\n- Due to the process of processing flat panels by folding and bending, it causes mechanical damage at the grooves. This leads to some Fe atoms losing their Cr layer to form free Fe appearing on the surface.<\/p>\n\n&rArr; Fe atoms will come into contact with acid (generated from rain) or combine with Oxygen atoms in the air to create FeO, Fe2<\/sub>O3<\/sub>. These are the compounds that have a yellow color.<\/p>\n\nFe + H+<\/sup> (H2<\/sub>SO4<\/sub>, HCl, HNO3<\/sub>)&nbsp;&rarr; FeO + H2<\/sub>O<\/p>\n\n2Fe + O2<\/sub>&nbsp;&rarr; 2FeO<\/p>\n\n<img height=\"256\" src=\"\/datafiles\/44085\/upload\/images\/image(5).png\" width=\"531\" \/><\/p>\n\nFigure 1. Rusted surface of 304 stainless steel panel<\/em><\/p>\n\n- Due to connecting the panels using TIG welding, the welds are completely inside the tank and in direct contact with water. In clean water, there is still&nbsp;residual chlorine that is highly oxidizing, reducing the activity of Cr&nbsp;leads to yellowing of stainless steel.<\/p>\n\n2Cr + 3Cl2<\/sub>&nbsp;&rarr; 2CrCl3<\/sub><\/p>\n\n- At the weld positions, when heating the weld will melt the surface, Fe, Cr, Ni atoms will redistribute on the surface. At welds where Fe atoms have a higher density, these Fe atoms will escape from the Cr protective layer and combine with Oxygen in the air to create a yellowing compound (FeO).<\/p>\n\n2Fe + O2<\/sub>&nbsp;&rarr; 2FeO<\/p>\n\n- In addition, with high water pressure, the inside weld seam is at risk of gradually separating. The welds will have cracks, allowing Oxygen to penetrate into contact with Fe &rArr; The risk of water leakage at the weld seams with water pressure is possible.<\/p>\n\n<img height=\"705\" src=\"\/datafiles\/44085\/upload\/images\/image(6).png\" width=\"530\" \/><\/p>\n\nFigure 2. TIG welded 304 stainless steel tank is rusted at the welding positions<\/em><\/p>\n\n2. In an environment containing sea salt<\/strong><\/p>\n\n- The composition of sea water is relatively complex, in addition to containing compounds such as salt, oxygen, nitrogen, carbon dioxide and some organic substances originating from plants and animals. Especially in sea water, there is at most about 35 grams of mineral salt and it contains 77.8% Sodium Chloride salt (NaCl), also known as table salt. It is known that the average salt ratio, also known as the salinity of sea water, is about 3.5%, but this salinity also depends on the correlation between the evaporation of rainwater and river water from the continents to the sea.<\/p>\n\n<img height=\"282\" src=\"\/datafiles\/44085\/upload\/images\/image(7).png\" width=\"530\" \/><\/p>\n\nFigure 3. Chemical composition of seawater<\/em><\/p>\n\n- In the marine environment, onshore is often affected by oxidation and rust faster than underwater, because onshore is often affected by wind carrying water vapor and salt that sticks to the surface of the product and then flies away, this process continuously creating a dense layer of salt on the surface of the product that is always wet, thus it has a great impact on the process of oxidation and rapid rust. We often see steel railings or steel building frames near the coast being destroyed quickly due to the above factors, while when underwater, stainless steel is destroyed more slowly because of the dilute salt content dissolved in the water.<\/p>\n\n- Stainless steel 304 can withstand the corrosion of most oxidizing acids. But stainless steel 304 has a weakness: it is susceptible to corrosion from chloride solutions, or from salt water environments such as the seashore. Chloride ions can create areas of corrosion, called &quot;pitting&quot;, which can spread under protective Cr barriers to degrade the internal structure. Solutions with a Sodium Chloride concentration of at least 25 ppm may begin to have a corrosive effect.<\/p>\n\n- There is no Molybdenum (Mo) in the composition of stainless steel 304 - a metal with significant corrosion resistance, especially in marine or chloride environments.<\/p>\n\n&rArr; Therefore, in a sea salt environment, 304 stainless steel easily corrodes and rusts, affecting drinking and daily life water.<\/p>\n\nIII.&nbsp;WATER TANK SOLUTIONS TO AVOID CORROSION IN SEA WATER ENVIRONMENT<\/strong><\/p>\n\n1.&nbsp;316 stainless steel tank assembled with bolts<\/strong><\/p>\n\n- Stainless steel tanks assembled by TIG welding will be corroded by destroying the protective Cr layer during the welding process as mentioned in section II.1. Therefore, the solution will be to assemble with bolts to avoid destroying the Cr layer on the surface of the stainless steel panels.<\/p>\n\n-&nbsp;Seawater environment will corrode stainless steel 304 as mentioned in section II.2. Therefore, a good solution would be to use 316 stainless steel tank assembled with bolts because of the outstanding features of&nbsp;stainless steel 316:<\/p>\n\n&nbsp; &nbsp;+&nbsp;According to conclusions from in-depth research by the Australian Stainless Steel Development Association, stainless steel 316 can withstand the impact of salt in the marine environment. The main components of&nbsp;stainless steel 316 are: Cr=16-18%, Ni=10-14%, Mo=2-3%.<\/p>\n\n&nbsp; &nbsp;+&nbsp;The composition of stainless steel 316 contains about 2-3% Molybdenum (Mo). This addition increases corrosion resistance, especially to sea salt, chlorides and other industrial solvents.<\/p>\n\n&nbsp; &nbsp;+&nbsp;The corrosion resistance of stainless steel 316 is higher than stainless steel 304. Stainless steel 316 is considered a metal that is resistant to salt water up to 1000 mg\/l chlorides&nbsp;at ambient temperature, but reducing to about&nbsp;500 mg\/l at temperatures above&nbsp;60o<\/sup>C.&nbsp;In addition, stainless steel 316 is an excellent metal because it is resistant to pitting and crevice corrosion in chloride environments with warm temperatures.<\/p>\n\n2. FRP\/GRP tank with stainless steel 316 accessories<\/strong><\/p>\n\nIn addition to 316 stainless steel tank&nbsp;assembled with bolts, the FRP\/GRP tank option with 316 stainless steel bolts and tie rods is also an effective anti-corrosion option in coastal areas because:<\/p>\n\n- FRP\/GRP tanks&nbsp;with assembled panels of plastic and composite nature are completely not corroded by sea salt.<\/p>\n\n- FRP\/GRP tanks&nbsp;are manufactured according to SS 245:2014, SS 375:2015 standard issued by TUV Singapore to ensure safety for domestic water.<\/p>\n\n- FRP\/GRP tanks are NSF certified by National Sanitary Foundation.<\/p>\n\n- FRP\/GRP tanks meet British WRAS certification for drinking water safety and hygiene.<\/p>\n\n- Metal accessories in contact with water such as bolts and tie rods made of&nbsp;stainless steel 316 are guaranteed not to rust.<\/p>\n","image_url":"https:\/\/khangnamco.vn\/datafiles\/44085\/upload\/files\/Tin%20t%E1%BB%A9c\/T%C3%A1c%20%C4%91%E1%BB%99ng%20m%C3%B4i%20tr%C6%B0%E1%BB%9Dng%20bi%E1%BB%83n.jpeg","image_thumb_url":"https:\/\/khangnamco.vn\/datafiles\/44085\/upload\/thumb_files\/Tin%20t%E1%BB%A9c\/T%C3%A1c%20%C4%91%E1%BB%99ng%20m%C3%B4i%20tr%C6%B0%E1%BB%9Dng%20bi%E1%BB%83n.jpeg","tags":"","count_view":2979,"seo_name":"impact-of-marine-environment-on-tig-welded-304-stainless-steel-tank","date_update":1700015641,"date_created_format":1700015756,"meta_title":"","meta_desc":"","meta_keyword":"Impact of marine environment on TIG welded 304 stainless steel tank","qr_code":"https:\/\/khangnamco.vn\/impact-of-marine-environment-on-tig-welded-304-stainless-steel-tank"},{"id":615100,"name":"VIETWATER 2017 Exhibition","desc":"The international exhibition on water industry, water filtration technology and wastewater treatment in Vietnam (Vietwater 2017) has more than 480 businesses in the water and energy industry from 38 countries and territories participating in the exhibition. this year. There are also 14 international pavilions from England, Europe, France, Germany, Australia, Finland, Belgium, Japan, China, Singapore, Korea, Hungary, Thailand, and Taiwan bringing many technologies, new solutions, equipment and products in the industry throughout the 3-day exhibition.<\/p>\n","content":"The international exhibition on water industry, water filtration technology and wastewater treatment in Vietnam (Vietwater 2017) has more than 480 businesses in the water and energy industry from 38 countries and territories participating in the exhibition. this year. There are also 14 international pavilions from England, Europe, France, Germany, Australia, Finland, Belgium, Japan, China, Singapore, Korea, Hungary, Thailand, and Taiwan bringing many technologies, new solutions, equipment and products in the industry throughout the 3-day exhibition.<\/p>\n\n<img height=\"644\" src=\"\/datafiles\/44085\/upload\/images\/image(1).png\" width=\"525\" \/><\/p>\n\nThe exhibition also offers many opportunities for visitors to update and find new technologies and solutions in the renewable energy industry, such as solar energy, biomass energy, water energy and wind energy.<\/p>\n\nIn particular, Khang Nam Materials Equipment Company Limited has been quite successful in introducing to consumers the benefits of using assembled water tanks such as: FRP\/GRP tank, hot dip galvanized&nbsp;tank, glass-coated tank, stainless steel tank...<\/p>\n\nThe main water tank is a big water tank assembled from tempered fiberglass panels (FRP\/GRP). Because it is installed from many small modules, the product can fill any space or can install partitioned water&nbsp;tanks. These modules can be assembled into giant water tanks of tens of thousands of cubic meters or in the smallest corners of buildings.<\/p>\n\nWe are very pleased to have had friendly discussions with visitors about the effects and situations in which types of transplant tanks should be used to be suitable and effective.<\/p>\n\nOn the last day of the exhibition, Khang Nam scheduled a survey consultation with many units, promising that many projects will be successfully installed in the new year.<\/p>\n","image_url":"https:\/\/khangnamco.vn\/datafiles\/44085\/upload\/files\/Tin%20t%E1%BB%A9c\/Tri%E1%BB%83n%20l%C3%A3m%20Vietwater%202017%201.jpeg","image_thumb_url":"https:\/\/khangnamco.vn\/datafiles\/44085\/upload\/thumb_files\/Tin%20t%E1%BB%A9c\/Tri%E1%BB%83n%20l%C3%A3m%20Vietwater%202017%201.jpeg","tags":"","count_view":782,"seo_name":"vietwater-2017-exhibition","date_update":1699935200,"date_created_format":1699936048,"meta_title":"","meta_desc":"","meta_keyword":"","qr_code":"https:\/\/khangnamco.vn\/vietwater-2017-exhibition"}]},"widget_8687989":{"content_data":{"content":"Find out more"}},"widget_8920136":{"content_data":{"content":"KHANG NAM MATERIALS EQUIPMENT COMPANY LIMITED<\/p>\n\nProviding high-quality and cost-effective storage tank solutions<\/p>\n"}},"widget_8920140":{"content_data":{"content":"REGISTER"}},"widget_8920137":{"content_data":{"content":"SIGN UP FOR"}},"widget_8920146":{"content_data":{"content":"CATEGORY"}},"widget_8920147":{"content_data":[{"id":181294,"name":"Introduce","desc":"","content":"","image_url":"https:\/\/khangnamco.vn\/assets\/images\/no-image.jpg","image_thumb_url":"https:\/\/khangnamco.vn\/assets\/images\/no-image.jpg","tags":"","count_view":0,"seo_name":"introduce","date_update":0,"date_created_format":"0","meta_title":"","meta_desc":"","meta_keyword":"","unique":100331,"index":0},{"id":181295,"name":"Product and service","desc":"","content":"","image_url":"https:\/\/khangnamco.vn\/assets\/images\/no-image.jpg","image_thumb_url":"https:\/\/khangnamco.vn\/assets\/images\/no-image.jpg","tags":"","count_view":0,"seo_name":"product-and-service","date_update":0,"date_created_format":"0","meta_title":"","meta_desc":"","meta_keyword":"","unique":100094,"index":1},{"id":181296,"name":"Project","desc":"","content":"","image_url":"https:\/\/khangnamco.vn\/assets\/images\/no-image.jpg","image_thumb_url":"https:\/\/khangnamco.vn\/assets\/images\/no-image.jpg","tags":"","count_view":0,"seo_name":"project","date_update":0,"date_created_format":"0","meta_title":"","meta_desc":"","meta_keyword":"","unique":100090,"index":2},{"id":181297,"name":"News","desc":"","content":"","image_url":"https:\/\/khangnamco.vn\/assets\/images\/no-image.jpg","image_thumb_url":"https:\/\/khangnamco.vn\/assets\/images\/no-image.jpg","tags":"","count_view":0,"seo_name":"news","date_update":0,"date_created_format":"0","meta_title":"","meta_desc":"","meta_keyword":"","unique":100096,"index":3},{"id":181303,"name":"Gallery","desc":"","content":"","image_url":"https:\/\/khangnamco.vn\/assets\/images\/no-image.jpg","image_thumb_url":"https:\/\/khangnamco.vn\/assets\/images\/no-image.jpg","tags":"","count_view":0,"seo_name":"gallery","date_update":0,"date_created_format":"0","meta_title":"","meta_desc":"","meta_keyword":"","unique":101593,"index":4}]},"widget_8920149":{"content_data":{"content":"CONTACT"}},"widget_8920151":{"content_data":{"content":""}},"widget_8920154":{"content_data":{"content":""}},"widget_8920157":{"content_data":{"content":""}},"widget_8688063":{"content_data":{"content":""}},"widget_14849903":{"content_data":{"content":"Thiết kế Website bởi P.A Việt Nam"}}}