JIANGSU CHINA STEEL UNION INDUSTRIAL CO.,LTD.
江苏中钢联合实业有限公司
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Chromium-Free Galvanized Steel Coils | 0.4-3.5mm | Eco-Friendly Coating | ASTM A653M
Chromium-Free Galvanized Steel Coils redefine sustainability and performance, combining ASTM A653M compliance with an eco-friendly, hexavalent chromium-free coating for industries prioritizing environmental safety. Available in 0.4–3.5mm thicknesses and widths up to 1,500mm, these coils deliver exceptional corrosion resistance (1,200+ hours salt spray) while meeting strict EU REACH and RoHS standards. Ideal for automotive, construction, and consumer goods, they offer a greener alternative without compromising durability or aesthetics.
Key Benefits:
| Parameter | Details |
|---|---|
| Base Material | Low-Carbon Steel (C: 0.02–0.15%, Mn: 0.20–0.60%, P ≤0.04%, S ≤0.03%) |
| Coating Type | Hot-Dip Galvanized (Zinc: 60–275g/m²) + Chromium-Free Passivation |
| Grades | ASTM A653M (SS Grade 33/40/80), EN 10346 (DX51D+ZF), JIS G3302 (SGCC) |
| Thickness Range | 0.4mm–3.5mm (±0.03mm tolerance) |
| Coil Dimensions | Width: 600–1,500mm (±2mm), ID: 508/610mm, OD: 1,000–2,000mm |
| Mechanical Properties | Tensile Strength: 330–550 MPa, Yield Strength: 230–450 MPa, Elongation: 15–25% |
| Surface Properties | Smooth finish (Ra 0.4–1.0µm), oiled or dry film (0.5–3g/m²), spangle-free |
| Certifications | ASTM A653M, REACH, RoHS, ISO 1461, ISO 9001/14001, TUV Rheinland |
| Key Applications | Automotive chassis, roofing sheets, appliance housings, and solar racking |
Competitive Edge:
| Industry | Use Cases |
|---|---|
| Automotive | EV battery enclosures, door panels, and exhaust system shields. |
| Construction | Green building façades, rainwater harvesting systems, and modular housing. |
| Consumer Goods | Eco-friendly furniture, kitchenware, and electronic device casings. |
| Renewable Energy | Solar panel frames, wind turbine access platforms, and geothermal piping. |
| Agriculture | Organic crop storage silos, livestock equipment, and irrigation systems. |
| HVAC & Plumbing | Ductwork, ventilation units, and corrosion-resistant plumbing fixtures. |
| Retail | Sustainable retail displays, shelving, and signage. |
FAQ
1. Do you have your own factory?
Yes, we do. We have our own factory, we can provide stable inventory, competitive prices and good quality.
2. What is your surface treatment method?
We can make special logos, icons or other things you order on the products. No matter what, we can do it as per your request.
3. What kind of payment can you accept?
1).100% irrevocable L/C at sight.
2).30% T/T in advance, the balance according to the copy of the bill of lading.
3).30% T/T in advance and balance of L/C.
4. How about the delivery time?
5-7 days after deposit received.
5. Why choose our company?
A). We have more stable inventory, competitive prices and good quality.
B). We have more integrity experience in international trade.
C). We can provide personal customization services, such as adding your company's logo, specified colors, etc. to the product.
6. What is the use of the product?
Galvanized Steel Coils, industry, chemical industry, secondary processing, construction, etc.
7. Can you send samples for inspection?
We can. We can send you samples for free.
8. Can you make products according to our requirements?
Yes, we will strictly follow your requirements, such as packaging method, product length, product handling method, etc.