Zn-Al-Mg Coated Steel Grades and Technical Parameters

Jul 07, 2026 Leave a message

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.

 

Application Of ZAM Steel

 

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 ,
O,
CO,
S ,
P,
U

ZM060, ZM070, ZM080,
ZM090,
ZM100,
ZM120, ZM130,
ZM140, ZM150, ZM160, ZM175, ZM190, ZM200, ZM250, ZM300, ZM310, ZM350, ZM430,

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)

 

About Our Company

 

Our Qualifications

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Packaging and Shipping

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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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