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Hot-dip Zn-Al-Mg alloy coated steel, commonly known as ZAM steel, is an advanced coating product featuring a ternary alloy of zinc, aluminum, and magnesium. The magnesium content promotes the formation of a stable protective film, ensuring exceptional corrosion resistance. Compared to traditional coatings like GI and Aluzinc, ZAM alloy-coated steel offers superior corrosion resistance, formability, and wear resistance. It is ideal for diverse applications, including automotive, HVAC, solar photovoltaics, agriculture, and more.
| Standard | JIS/ASTM/EN |
| Content | Low AL&MG : Zn-(0.5-3%) Al-(0.4-2%)MgMid AL&MG: Zn-(3-13%) Al-(2-4%)MgHigh 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+ZMHD420LAD+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 0.8-4.5mmWidth: 750-1600mm |
ZAM coating provides up to 3 times the corrosion resistance of GI coating.
The ZAM coating's lower friction coefficient ensures excellent formability.
A more affordable option compared to aluminum and stainless steel, without compromising quality.
