Hot DIP Galvanized Z-Am Azm Amz Zma Am Xm Galvanized Xam Steel Zamsteel Coil S350gd S550gd Zm275 Zm430 for PV Support
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Product Highlights
- Superior Corrosion Resistance: Z-AM coating offers 10-20 times better resistance than hot-dip zinc and 5-8 times better than Galvalume.
- Self-Healing Technology: Cut edges are protected by a thin zinc-based film containing Al and Mg that leaches to prevent rust.
- Extended Service Life: Service life is 2 to 6 times longer than general galvanized steel sheets of the same thickness.
- Wide Customization Options: Customizable thickness (0.15-2mm), width (1000-2080mm), and coating weight (40-450G/M2).
- Direct Replacement Capability: Can directly replace GI products without changing existing processing, assembly, or painting processes.
- Diverse Alloy Compositions: Available in Low, Mid, and High Al&Mg variants to suit specific environmental and mechanical needs.
- Global Project Experience: Successfully supplied for major projects in Indonesia, Qatar, Colombia, Mongolia, Russia, and Algeria.
- Comprehensive Certifications: Holds CE, ROHS, SNI, BIS, SASO, PVOC, SONCAP, SABS, and ISO certifications for global compliance.
Product Attributes
- Customization
- Available
- Standard
- ASTM, JIS, GB, AISI, DIN, BS
- Surface Treatment
- Coated
- Technique
- Cold Rolled
- Application
- Container Plate
- Edge
- Slit edge
- Stock
- Not Stock
- Name
- Zinc Aluminium Magnesium Alloy Coated Steel Coil
- Thickness
- 0.15-2mm
- Width
- 1000-2080mm
- Surface
- Coated
- Coil ID
- 508/610mm
- Zinc Coating
- 40-450G/M2
- Transport Package
- Standard Export Seaworthy Package
- Specification
- thickness 0.4-3mm
- Trademark
- MESCO STEEL
- Origin
- China
- Production Capacity
- 20000tons/Month
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Product Description
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The largest private steel supply group in Northeast ChinaTop 3 Z AM coated steel supplier in China
Z AM coated steel Daily Stock 7000-12000 Tons
Better mechanical properties and surface

Superior corrosion resistance-1
Superior corrosion resistance-2
One of the biggest features:Self-Healing.
(Z-AM:Cut edges covered with thin zinc based protective film containing Mg.)
Excellent corrosion resistance is achieved on cut edge of Z-A-M with a fne zinc-based protective film that contains Al and Mg leaching from the coating layer.

Z AM VS Galvanized Stell sheet VS Galvalume Stell sheet
ZInc Aluminium Magnesium Alloy Coated Steel Coil
Zinc Aluminum Magnesium coating is through the role of aluminum and magnesium, so that hot dip plating layer has excellent ANTI-corrosion resistance, wear resistance and machinability, can be widely used in various fields,especially for photovoltaic bracket and husbandry. Zn-al-mg-coated steel plate allows customers using GI products to directly replace ZN-AL-MG-coated coating steel plate without changing the existing processing, assembly, painting and other processes.Zinc-Aluminum-Magnesium alloy coated steel sheet. Due to the effects of magnesium and aluminum, Z-A-M has excellent corrosion resistance, scratch resistance and formability.
MESCO Provides Z AM /AM /ZM sheet has better performance in corrosion re-sistance than GL sheet of the same thickness and its service life is2-6 times longer than general Gl sheet.
MESCO Provides Z AM /AM /ZM sheet has better performance in corrosion re-sistance than GL sheet of the same thickness and its service life is2-6 times longer than general Gl sheet.
| Standard | EN 10346/ JIS G 3323/ ASTM A1046/A1046M |
| 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 | |
| Coating | ZM20-ZM600g/m2 |
| Certificate | CE, ROHS, SNI, BIS, SASO, PVOC, SONCAP, SABS, sirm, tisi, KS, JIS, GS, ISO |
| Sizes | Thickness 0.2-8.0MM |
| Width: 600-1600mm |
Mainstream types of alloy compositions for Zn-Al-Mg
- Zn + 1.5A l + 1.5Mg
- Zn + 3Al + 3Mg
- Zn + 6Al + 3Mg
- Zn + 19Al + 6Mg
- Zn + 55Al + 2Mg