Complaint
Hot-dip Zn-AL-MG alloy coated steel is a new type of coating product. The zinc-aluminium-magnesium coating is a ternary alloy coating with zinc as the main component, and the content of aluminium and magnesium is between 1.5-8% (among which the magnesium content is not less than 0.2%). The magnesium in the coating is beneficial to promoting the formation of a very stable and well-organized and meticulous protective film, namely Hydrozincite ((Zn5 (OH)8Cl2 H2O), which generates and maintains a film-like covering on the surface of the coating, thereby ensuring excellent corrosion resistance. Compared with traditional coatings such as GI and Aluzinc, Zn-AL-MG alloy-coated steel is known for its superior corrosion resistance, formality, wear and scratch resistance and can be applied in a wide range of fields such as automotive, HAVC, solar photovoltaics, agriculture, high-speed guardrails, electrical cabinets, greenhouse structures, etc.
1.Superior corrosion resistance: With the addition of MG and AL content, Zn-AL-MG alloy coated steel has superior corrosion resistance. The planar corrosion resistance of Zn-AL-MG coating is about 3 times that of GI coating.
2. Formability: The coefficient of friction of the Zn-AL-MG coating is 15% lower than that of the GI coating, and it remains stable during reciprocating friction, giving it excellent formability.
3. Cost Reduction: An excellent alternative to much more costly materials such as aluminum and stainless steel.
| Standard | JIS/ ASTM/ EN |
| Content | Low AL&MG : Zn-(0.5-3%) Al-(0.4-2%)Mg |
| Mid AL&MG: Zn-(3-13%) Al-(2-4%)Mg | |
| High AL Mid MG: Zn-(50-60%) Al-(2-4%)Mg | |
| Grades | DX51D+ZM/DX52D+ZM/DX53D+ZM |
| S220GD+ZM/S250GD+ZM/S280GD+ZM/S320GD+ZM/S350GD+ZM | |
| S400GD+ZM/S550GD+ZM | |
| HD300LAD+ZM/HD340LAD+ZM/HD380LAD+ZM | |
| HD420LAD+ZM/HD460LAD+ZM/HD500LAD+ZM/HD550LAD+ZM/HD700LAD+ZM | |
| SGMCC+ZM/SGHCD+ZM/SGH340D+ZM/SGH400D+ZM/SGH490D+ZM/SGH540D+ZM | |
| Coating | ZM20 - ZM600g/m2 |
| Spangle | Regular spangle/ Zero spangle |
| Sizes | Thickness 0.8-4.5mm |
| Width: 750-1600mm |
Q: How long has CUMIC been exporting steel products?
A: CUMIC has been serving the global steel market for over 17 years.
Q: Where is your company located?
A: Our head office is in Shanghai and Hong Kong, China.
Q: Can you provide local expert support?
A: Yes, we have sales offices in 10+ countries with experienced traders.
Q: How can I ensure the quality and consistency of the steel I import?
A: Over 55% of our orders undergo strict inspection by SGS, BVCC, and Intertek.
Q: Are you ISO 9001:2015 Certified?
A: Yes, we are ISO 9001: 2015 certified.
Q: Do you provide inspection reports?
A: Yes, we provide over 1000 third-party inspection reports per year.
Q: What payment terms can you accept?
A: We can accept L/C, T/T, D/P and OA payment terms.
Q: What is your MOQ?
A: Our MOQ for importing steel is at least 10 tons.
