Zinc-Aluminum-Magnesium Steel Coil ZM275 is a premium high-performance coated steel product engineered for demanding environments where maximum corrosion resistance, durability, and structural reliability are required. Featuring an advanced zinc-aluminum-magnesium alloy coating with a total coating mass of 275g/m², this material provides exceptional protection against corrosion and significantly extends service life compared with conventional galvanized steel.The unique ZAM coating technology creates a dense protective layer that offers outstanding cut-edge self-healing performance. When the surface is damaged through cutting, drilling, or mechanical processing, magnesium-rich corrosion products migrate to exposed areas and help seal the damaged sections, maintaining long-term protection even in highly corrosive environments.
Advanced zinc-aluminum-magnesium alloy coating provides superior protection against rust and oxidation.
Performs significantly better than traditional galvanized coatings in harsh environments.
Excellent resistance against moisture, salt spray, and chemical corrosion.
| Parameter | Specification |
|---|---|
| Product Name | Zinc-Aluminum-Magnesium Steel Coil (ZAM / ZM Coil) |
| Grade | ZM275 |
| Alloy Coating Mass | 275 g/m² (Double-Sided Total Coating Weight) |
| Standards | EN 10346, ASTM A1046, GB/T 36702 |
| Surface Finish | Smooth Satin Matte / Regular Spangle |
| Thickness Range | 1.0–6.0 mm |
| Width Range | 600–1600 mm |
| Coil Inner Diameter | 610 mm / 762 mm |
| Coil Weight | 5–25 Metric Tons |
| Processing Options | Precision slitting and trimming available |
| Grade | Thickness Range | Yield Strength | Tensile Strength | Elongation |
|---|---|---|---|---|
| S350GD + ZM275 | 1.0–6.0 mm | ≥350 MPa | ≥420 MPa | ≥16% |
| S420GD + ZM275 | 1.0–6.0 mm | ≥420 MPa | ≥480 MPa | ≥14% |
| S550GD + ZM275 | 1.0–4.5 mm | ≥550 MPa | ≥560 MPa | — |
| Grade | Salt Spray Test Resistance | Cut-Edge Protection |
|---|---|---|
| S350GD + ZM275 | ≥4,000 Hours (No Red Rust) | Maximum Self-Healing Sealing |
| S420GD + ZM275 | ≥4,000 Hours (No Red Rust) | Maximum Self-Healing Sealing |
| S550GD + ZM275 | ≥4,000 Hours (No Red Rust) | Maximum Self-Healing Sealing |
| Feature | ZM275 ZAM Steel | Traditional Galvanized Steel |
|---|---|---|
| Corrosion Resistance | Excellent | Good |
| Cut-Edge Protection | Self-healing capability | Limited protection |
| Service Life | Extended significantly | Standard lifespan |
| Scratch Resistance | High | Moderate |
| Maintenance Requirement | Lower | Higher |
| Harsh Environment Performance | Superior | Limited |
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Zinc-Aluminum-Magnesium Steel Coil ZM275 is a premium high-performance coated steel product engineered for demanding environments where maximum corrosion resistance, durability, and structural reliability are required. Featuring an advanced zinc-aluminum-magnesium alloy coating with a total coating mass of 275g/m², this material provides exceptional protection against corrosion and significantly extends service life compared with conventional galvanized steel.The unique ZAM coating technology creates a dense protective layer that offers outstanding cut-edge self-healing performance. When the surface is damaged through cutting, drilling, or mechanical processing, magnesium-rich corrosion products migrate to exposed areas and help seal the damaged sections, maintaining long-term protection even in highly corrosive environments.
Advanced zinc-aluminum-magnesium alloy coating provides superior protection against rust and oxidation.
Performs significantly better than traditional galvanized coatings in harsh environments.
Excellent resistance against moisture, salt spray, and chemical corrosion.
| Parameter | Specification |
|---|---|
| Product Name | Zinc-Aluminum-Magnesium Steel Coil (ZAM / ZM Coil) |
| Grade | ZM275 |
| Alloy Coating Mass | 275 g/m² (Double-Sided Total Coating Weight) |
| Standards | EN 10346, ASTM A1046, GB/T 36702 |
| Surface Finish | Smooth Satin Matte / Regular Spangle |
| Thickness Range | 1.0–6.0 mm |
| Width Range | 600–1600 mm |
| Coil Inner Diameter | 610 mm / 762 mm |
| Coil Weight | 5–25 Metric Tons |
| Processing Options | Precision slitting and trimming available |
| Grade | Thickness Range | Yield Strength | Tensile Strength | Elongation |
|---|---|---|---|---|
| S350GD + ZM275 | 1.0–6.0 mm | ≥350 MPa | ≥420 MPa | ≥16% |
| S420GD + ZM275 | 1.0–6.0 mm | ≥420 MPa | ≥480 MPa | ≥14% |
| S550GD + ZM275 | 1.0–4.5 mm | ≥550 MPa | ≥560 MPa | — |
| Grade | Salt Spray Test Resistance | Cut-Edge Protection |
|---|---|---|
| S350GD + ZM275 | ≥4,000 Hours (No Red Rust) | Maximum Self-Healing Sealing |
| S420GD + ZM275 | ≥4,000 Hours (No Red Rust) | Maximum Self-Healing Sealing |
| S550GD + ZM275 | ≥4,000 Hours (No Red Rust) | Maximum Self-Healing Sealing |
| Feature | ZM275 ZAM Steel | Traditional Galvanized Steel |
|---|---|---|
| Corrosion Resistance | Excellent | Good |
| Cut-Edge Protection | Self-healing capability | Limited protection |
| Service Life | Extended significantly | Standard lifespan |
| Scratch Resistance | High | Moderate |
| Maintenance Requirement | Lower | Higher |
| Harsh Environment Performance | Superior | Limited |
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