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Galvanized and painted steel are two types of steel commonly preferred in construction and manufacturing applications due to their superior corrosion resistance and long-term durability. But beneath their tough exteriors lie distinct advantages, making them perfect for specific applications. Let's delve deeper and discover which steel reigns supreme in each domain.To provide readers with a more comprehensive understanding of these steel, let's delve deeper into their production processes, thickness of coatings, scratch resistance, durability, and cost factors with AG真人游戏 Steel.Galvanized and painted steel have significant difference in coating propertiesWhat is galvanized and painted steel?Galvanized steel is a type of steel coated with a layer of zinc on the surface to protect it from corrosion. The main components of this type of steel are a steel core layer and the zinc coating layer. The steel core is typically made of carbon steel or alloy steel manufactured into various forms such as sheets, coils, or pipes. The zinc layer is applied to the surface of the steel core to protect it from corrosion through reacting with elements in the environment to form a layer of zinc oxide or zinc hydroxide.The painted steel, on the other hand, is essentially formed from a carbon steel or alloy steel sheet, but then the manufacturer will apply a layer of colored paint to the surface to enhance corrosion resistance and improve aesthetics.The galvanized and painted steel have the same base steel but they differ in coating layerHow many methods to coat galvanized and painted steel?The main difference in composition between galvanized and painted steel lies in their coatings, as the steel core of both is essentially the same. To produce galvanized steel, manufacturers employ methods such as hot-dip galvanizing or electrogalvanization. Meanwhile, the color-plating process typically involves various coating methods such as epoxy powder coating or thermal coating.In the hot-dip method (galvanized steel), steel is immersed in a bath of molten zinc at high temperatures (usually around 450掳C) to facilitate the adherence of the zinc layer to the steel surface. Conversely, in the electroplating method, the steel acts as the negative electrode submerged in a solution containing positively charged zinc ions. At this point, the zinc ions migrate and begin to deposit on the steel surface due to the electrostatic attraction between the positive and negative electrodes, forming a tightly bound coating.Hot-dipped galvanizing is the most popular method of this zinc-coating steelIn the powder coating method of the color-coating process, epoxy paint is melted and fed into an electrostatic spray gun, with the powder paint carrying a positive charge while the steel surface carries a negative charge, creating an attraction between opposite charges. Besides, thermal coating involves using high temperatures to apply a layer of paint onto the steel surface through methods such as spray guns, hot-dipping, or rolling.People often use spray gun to coat epoxy paint on surface of steelComparing galvanized and painted steel featuresAlthough both types of steel share the same steel core, reflecting similar strength in terms of load-bearing capacity, yield strength, and tensile strength, they differ in coating specifications. This has led to comparisons in coating thickness, scratch resistance, durability of the coating over time, and cost.Coating thicknessCurrently, most steel products in factories are typically galvanized with thicknesses ranging from 0.3 to 2.5 mm. This ideal thickness provides excellent corrosion resistance while meeting various technical requirements. Additionally, this is a thickness level that factories can accommodate because thinner requirements would compromise the coating quality and diminish the factory's credibility.For painted steel, the paint system has been developed over many years with a three-layer paint formula for steel structure, and the thickness of each layer has significantly increased, including the primer, undercoat, and finish coat. The primer layer鈥檚 functions to wet the surface and provide good adhesion for subsequent paint layers, the undercoat is applied to enhance protection for the coating system, and the finish coat is responsible for the product's appearance.Comparing the complexity of the coating systems between galvanized and painted steel, finishing a painted steel product is considered more complex due to the need for compatibility among the layers, including ensuring there is no chemical resistance between these layers. Meanwhile, for galvanized steel, the manufacturer only needs to ensure that the zinc coating is not too thin to maintain the product's corrosion and scratch resistance.There are 3 color layers for steel structure including primer, undercoat and finish coatDurability and scratch resistanceThe zinc elements in the galvanized steel play a significant role in protecting material from corrosion. When zinc comes into contact with moisture in a humid environment or with oxidizing substances, it forms a layer of zinc oxide that prevents rust. In painted steel products, the color coatings applied to the steel surface are multifunctional specialty paints, specifically designed to resist scratches, UV rays, and fire, such as epoxy, PU, and PVDF paints.Overall, when comparing durability and scratch resistance of galvanized versus painted steel, galvanized steel is appreciated because zinc is an extremely effective antioxidant. Particularly in coastal environments or harsh weather conditions, galvanized steel is always the optimal choice for construction. Although the coatings on painted steel have many functions, they cannot withstand the strong corrosive effects of salt ions from seawater.Galvanized steel has stronger scratch resistance compared to painted steelIn the case of scratching, the durability of galvanized steel remains longer-lasting compared to painted steel. When the color coating is scratched, oxidizing agents will immediately affect the steel core and cause corrosion. However, if users promptly detect a scratch on painted steel, they can quickly address it by applying a similar color coating. On the other hand, if the scratch occurs on galvanized steel, a temporary fix becomes difficult as the galvanizing process typically takes place at the factory.The user can fix the scratch on painted steel by applying a new color layer on surfaceThe cost of galvanized and painted steelPrice is also one of the differences between galvanized steel and painted steel. With some additional layers of paint on the outside, the cost of painted steel will be higher than that of galvanized steel. Therefore, in projects that need to optimize costs, galvanized steel should be used instead of painted steel.In certain specific cases, the annual maintenance costs and repair rates for projects using this galvanized steel will be significantly reduced. The coating of painted steel is easily corroded and peeled off due to weather conditions, so users need to continuously inspect and maintain them to avoid aesthetic issues and to ensure the quality of the construction.Regarding the lifespan of galvanized steel versus painted steel, the zinc coating is proven to perform well for about 50 years, whereas the coating of painted steel will begin to wear off after about 3 years, requiring repainting every 5 to 7 years. This frequent repainting can be a significant cost factor over the lifetime of the structure. Therefore, while painted steel may offer a wider range of aesthetic options, galvanized steel is often considered a more cost-effective choice for long-term durability.Painted steel will help contractors optimize their budget for large-scale projectsCustom colors optionOne of the other important factors when comparing the characteristics of galvanized and painted steel is aesthetics. Painted steel products often offer a variety of color options to meet the needs and preferences of buyers, whereas the tone of galvanized steel tends to be characterized by a bright gray hue.Color option is various for customer if they choose painted steel for their projectPartnering with AG真人游戏 Steel to gain quality pre-painted galvanized and galvanized steel for projectIn conclusion, if budget is one of the most important factors in your project, then painted steel is a reasonable choice because it not only helps optimize costs but also ensures good scratch and corrosion resistance as long as the environmental conditions are not too harsh. On the other hand, if you need a product with excellent rust resistance and long-term durability for your project, using galvanized steel will help you minimize damage to various components over time.If you need any advice on the characteristics and technical specifications of galvanized and painted steel, please contact AG真人游戏 Steel via Email: [email protected] or Whatsapp: +84 76 911 2358.

Ton Dong A Corporation is one of the galvanized steel manufacturing brands with prestigious and market-leading output. Ton Dong A's products stretch from North to South, but not everyone knows about this business.AG真人游戏 Steel will help you learn more about Ton Dong A Corporation through the article below.Ton Dong A Corporation - The second largest galvanized steel mills in VietnamIntroducing Ton Dong A CorporationTon Dong A Corporation was established on November 5, 1998, with the name Dong A Company Limited; until 2004, it was changed to Ton Dong A Company Limited. In 2009, Ton Dong A changed from a limited liability company to a joint stock company to suit the development of the current economy. Ton Dong A is an enterprise specializing in the production of cold-rolled coil, galvanized steel coil, color coated steel,... serving the construction and civil industry. After more than 20 years of establishment and development, Ton Dong A Corporation is always committed to partners and consumers about product quality and service quality at competitive prices to meet market needs.With the motto "Quality - Prestige - Sustainable Development", Ton Dong A regularly researches domestic and foreign markets. Promote investment in technology lines to improve product quality and increase product diversity and richness. Thereby affirming the position of the Ton Dong A Corporation brand in the market, expanding export markets in Southeast Asia, and targeting further markets.Ton Dong A Corporation is considered a product with good quality, high aesthetics, and a variety of colors to meet all customer requirements. Currently, the company uses equipment and lines originating from the world's leading equipment manufacturing corporations, such as Danieli, Tenova, Kobelco,... Up to now, the company's products have been exported steadily, intending to enter the markets of demanding countries such as Europe, America, Australia, Japan,...Address: No. 5, Road No.5, Song Than 1 Industrial Park, Di An Ward, Di An City, Binh Duong Province, Viet NamTel: (+84 274) 373 2575Fax: (+84 274) 379 0420Email: [email protected]: tondonga.com.vnTon Dong A's products are invested in from quality to packagingMain products of Ton Dong A CorporationTon Dong A Corporation products are very popular in the market and are used in many different industries. Below, we invite you to learn about the main product lines of Ton Dong A Corporation.Color coated steelColored corrugated iron is known to be an indispensable item in construction and civil works. Besides being used for cold corrugated iron roofing, colored corrugated iron is also used to make advertising signs, interior decoration,... In addition to meeting product quality standards such as durable use, resistance to environmental factors also helps increase the aesthetics of the project.With the desire to bring Vietnamese brands to the world, Ton Dong A Corporation has launched the KING/WIN/SVIET product set. This is a set of products that brings national pride when featuring images associated with Vietnamese culture, such as Dragons, Stray birds, and S-shaped strips of land.Ton Dong A color-coated steel coil products have superior qualityGalvanized steel coilGalvanized steel coils, also known as galvanized steel, are produced from cold-rolled coils that are then plated with a layer of zinc. Galvanized steel coils are highly resistant to corrosion in the natural environment, so they are often used for roofing, partitions, and floor coverings. Galvanized steel coils from Dong A Ton Corporation are cheap, highly durable, and popular in the market. All products of Ton Dong A meet Japanese standards: JIS G3302, American standard ASTM A653, Australian standard AS 1397, European standard BS EN 10346. Ton Dong A has 2 main types: galvanized steel coils Z12 and Z27.Galvanized steel coil is the main product of Ton Dong AGalvanized steel pipe Normally, galvanized steel pipes are made from galvanized steel coils, so galvanized steel boxes have a shiny surface and are 4-5 times more durable than black steel pipes. Ton Dong A Corporation is currently producing galvanized steel pipes in 2 factories located in Long An province and Da Nang city. Ton Dong A's galvanized steel pipes are manufactured according to current popular standards and are exported to many demanding countries such as the US, Australia, Taiwan,...Galvanized steel pipe of Ton Dong A have high corrosion resistance Cold rolled coilCold-rolled steel is hot-rolled steel after being cooled to room temperature. With high durability, good bearing capacity, and impact resistance, Ton Dong A's cold-rolled steel coils are widely used in many different industries. At Ton Dong A Corporation, cold-rolled steel is regulated according to standards TCVN 6524: 1999, TCVN 6524: 2006.Ton Dong A's cold-rolled coils have good load-bearing and impact-resistant propertiesCompetitive advantage of Ton Dong A CorporationTon Dong A Corporation determines its competitive advantage is providing high-quality galvanized steel products with competitive prices and the best service. The company's products are the number one choice for all large and small projects. With diverse designs and many models, customers can freely choose. All products are produced on modern, closed production lines. The product not only has good bearing capacity but is also safe for users and environmentally friendly.Ton Dong A Corporation is a product of good quality, high durability, and extremely affordable price; the products all meet user standards. Compared to some other high-end corrugated iron lines, Dong A corrugated iron has a competitive price while still ensuring the best longevity and performance. Quality is always the top priority for businesses, as products rarely fade; roofing sheets that have been used for many years still look like new, bring aesthetic value, and can be reused.Quality and price are one of Ton Dong A's competitive advantagesAG真人游戏 Steel - Strategic partner of Ton Dong A CorporationCurrently, AG真人游戏 Steel is one of Ton Dong A's strategic partners. In 2023, AG真人游戏 Steel helped Ton Dong A Corporation export more than 27,000 tons of steel of all kinds. Among them, outstanding exports are to the Spanish and Belgian markets, with the main products being color soared steel, galvanized steel coil, galvanized steel pipe,...Currently, with AG真人游戏 Steel becoming a strategic partner of Ton Dong A, it is hoped that by 2024, AG真人游戏 Steel will help Ton Dong A export more diverse products to more potential markets.In the above article, AG真人游戏 Steel has compiled for you information about Ton Dong A Corporation. If you want to buy steel products from Ton Dong A, please contact us here.