Hollow Tube Zinc Aluminum Magnesium

Zinc aluminum magnesium coated steel plates were originally developed to replace some stainless steel usage scenarios. Although stainless steel has good corrosion resistance, the cost is relatively high; while other galvanized series steel plates are not as good as stainless steel in surface corrosion resistance. More importantly, The ability to protect broken sections or damaged areas of the coating is poor.

The zinc-aluminum-magnesium coating has excellent red rust resistance and self-healing and anti-corrosion properties of the sheared section (the initial corrosion products of the zinc-aluminum-magnesium coating will flow and cover the exposed substrate). At the same time, it also has far better properties than aluminum plating. Welding properties of zinc-coated steel sheets.

What is zinc aluminum magnesium coating?

According to the definition of European standard EN10346-2015, zinc-aluminum-magnesium coating is a ternary alloy coating whose main component is zinc, and the content of aluminum and magnesium is between 1.5~8% (magnesium content is not less than 0.2%). It has Excellent corrosion resistance, resistance to chlorine and alkali corrosion, and self-healing function, ensuring that the steel will not develop red rust for 30 years.

Other standards: ASTM A1046/A1046M-17, AS 1397-2021, JIS G 3323-2019, YB/T 4634-2017.

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