Z275 Hot Dipped Galvanized Steel Coil 0.12-4.0mm Thickness with 30-275g/m² Zinc Coating
Z275 galvanized steel coil is a carbon steel sheet coated with zinc on both sides through a hot-dip galvanizing process. The zinc layer forms a metallurgical bond with the steel substrate, providing both barrier protection and cathodic protection through sacrificial anode action.
| Parameter | Specification |
|---|---|
| Width | 30-1500mm |
| Thickness | 0.12-4.0mm |
| Zinc Coating | 30-275g/m² |
| Package Weight | 2-6 tons per coil |
| Hardness | HRB50-71 (CQ Grade), HRB45-55 (DQ Grade) |
| Tensile Strength | 270-500 MPa (CQ Grade), 270-420 MPa (DQ Grade) |
| Surface Structure | Normal spangle (NS), Minimized spangle (MS), Spangle-free (FS) |
Zinc coating provides electrochemical protection that lasts for decades, with higher collision and scratch resistance than painting or plastic coating.
Sacrificial anode action continues to protect steel even when coating is scratched or damaged.
Can be used without discoloration below 230°C, maintaining performance at elevated temperatures.
Maintains steel processability with thin, uniform zinc layer that doesn't affect forming operations.
- Q195, Q235, Q235B, Q345, Q345B, SGCH
- JIS G3302, ASTM A653, S280GD+Z, S350GD+Z
- SGCC, DX51D/DX52D, DX51D+Z/DX52D+Z
- EN 10142, EN 10147, EN 10292, ASTM A653/A653M, BQB 420
We offer comprehensive value-added processing services including bending, welding, decoiling, punching, cutting, moulding, and custom requirements.
- Mechanical Testing (Tensile of Area)
- Hardness Testing
- Chemical Analysis - Spectro Analysis
- Positive Material Identification - PMI Testing
- Micro and Macro Testing
- Pitting Resistance Testing
- Flaring Testing
- Intergranular Corrosion (IGC) Testing
Samples are available free of charge, with freight costs covered by the customer.
Yes, we absolutely accept third-party inspection to ensure quality compliance.
All products are manufactured by certified workshops and inspected piece by piece according to national QA/QC standards, with warranties available.
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Have questions about our products or want to discuss a custom order? Our team is ready to help you.