Zn-Al-Mg Coated Steel Grades and Technical Parameters
ZAM steel is an advanced hot-dip coated steel product that uses a zinc-aluminum-magnesium alloy coating to significantly improve corrosion resistance, especially in harsh outdoor and industrial environments. The biggest feature of zinc-aluminum-magnesium coated steel is its self-repairing ability and strong corrosion resistance.
ZAM steel specifications
| Product Name | ZAM steel |
| Base Metal | Cold rolled steel |
| Thicknesses | 0.3 – 4mm |
| Width | 600-1500mm |
| Coating thickness | 60-180g/㎡ |
| Surface treatment | Passivation, Fingerprint resistance, Oil coating |
| Grade | SPHC, SPHD, SPHE, DX51D, DX52D, DX53D, SPCC, SPCD, A1006, A1008, etc |
| Value-added services | Cutting, slitting, shearing |
| MOQ25 | 25 tons |
| Packing | Standard export packaging (waterproof paper inside and steel strap outside) |
Chemical Composition
| Chemical composition of substrate (taking DX51D as an example) | C | Mn | P | S | Fe |
| ≤0.12% | ≤0.50% | ≤0.045% | ≤0.045% | Remainder | |
| Coating chemical composition | Zn | Al | Mg | Si | Fe |
| 55% – 65% | 20% – 30% | 1.5% – 3.5% | 0.1% – 0.5% | ≤0.3% |
Application of ZAM steel
1.Construction industry: Lightweight steel framing systems, Roofing structures and purlins, Curtain wall support systems.
2.Solar & renewable energy: Solar mounting structures, Ground-mounted PV systems, Wind energy auxiliary frames.
3.Transportation: Truck body structural parts, Container reinforcement panels, Rail auxiliary components.
4.Agriculture: Greenhouse structural frames, Livestock housing systems.
5.Industrial equipment: Electrical enclosures, HVAC structural components, Machinery protective covers.

Hot-dip Zinc-Magnesium Alloy Coated (ZM) Steel Grades
| Grade |
Standard |
T (mm) |
Surface Treatment |
Coating mass |
|
DX51D+ZM, DX52D+ZM, DX53D+ZM, DX54D+ZM, DX56D+ZM,DX57D+ZM |
EN10346 |
0.2-3.0 |
C , |
ZM060, ZM070, ZM080, |
|
S220GD+ZM, S250GD+ZM, S280GD+ZM, S320GD+ZM, S350GD+ZM, S550GD+ZM |
||||
|
HX160YD+ZM, HX180BD+ZM, HX180YD+ZM, HX220BD+ZM, HX220YD+ZM, HX260BD+ZM, HX260YD+ZM, HX300YD+ZM, HX300BD+ZM, HX260LAD+ZM, HX300LAD+ZM, HX340BD+ZM, HX340LAD+ZM, HX380LAD+ZM, HX420LAD+ZM, HX460LAD+ZM, HX500LAD+ZM |
||||
|
HCT450X+ZM, HCT490X+ZM, HCT590X+ZM, HCT780X+ZM, HCT980X+ZM, HCT980XG+ZM, HCT690T+ZM, HCT780T+ZM, HCT600C+ZM, HCT780C+ZM, HCT980C+ZM, HDT450F+ZM, HDT580F+ZM, HDT580X+ZM, HDT750C+ZM, HDT760C+ZM, HDT950C+ZM, |
||||
|
SGCC, SGCH, SGCD1, SGCD2, SGCD3, SGCD4, SGC340, SGC400, SGC440, SGC490, SGC570 |
JIS G 3302 |
1.6-2.3 |
C ,O ,X, NC, M |
ZM(A)70, ZM(A)90, ZM(A)120, ZM(A)150, ZM(A)170, ZM(A)185, ZM(A)200 |
|
SGHC, SGH340, SGH400, SGH440, SGH490, SGH540 |
0.25-2.3 |
|||
|
A792 CS, A792 DS, A792 FS, A792 THS, A792 Grade 33(230), A792 Grade 37(255), A792 Grade 40(275), A792 Grade 50(340), A792 Grade 60(410), A792 Grade 70(480), A792 Grade 80(550) |
ASTM A792/A792M |
0.25-3 |
|
AZ30(AZM100), AZ35(AZM110), AZ40(AZM120), AZ50(AZM150), AZ50(AZM165), AZ60(AZM180), AZ70(AZM210) |
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Choosing the right coating technology can significantly improve the durability and cost-effectiveness of your steel projects.
If you are looking for galvanized steel coil, Zn-Al-Mg coated steel, or ZAM steel solutions, contact GNEE for product specifications, technical recommendations, and customized supply options.
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