China Suppliers Factory for 0.12-4.0mm Cold-Rolled ASTM PPGI PPGL RAL Color-Coated Galvanized Steel Coils
Galvanized coils are essential rolled steel products made from cold-rolled substrates like Q235 and SGCC grades, processed via hot-dip galvanizing or electro-galvanizing to form a uniform zinc coating on the surface. This zinc layer acts as a protective barrier, making the coils a cost-effective and durable choice for industries requiring rust prevention and structural stability.
Their core advantages are notable: the zinc coating delivers strong corrosion resistance, extending service life in humid, outdoor, or mildly corrosive environments; they boast excellent formability, enabling easy uncoiling, cutting, bending, and stamping for mass production; their high tensile strength meets structural load requirements; and they offer superior cost-effectiveness compared to stainless steel, balancing performance and budget for mid-to-low corrosion scenarios.
📦 Applications across diverse sectors:
- Construction: Processed into roof and wall panels, steel frames, and scaffolding components.
- Automotive: Used for chassis parts and body shells after further processing.
- Home Appliances: Outer casings of washing machines and air conditioners.
- Hardware Accessories: Hinges, brackets, and similar components.
- Light Truck Structures: Carriage structures merging utility with durability.
🔩 Installation Guidelines: Prior to installation, coils must be uncoiled and cut to custom sizes, with surfaces cleaned to remove dust and oil while checking for zinc coating defects (such as peeling or blistering). Connection methods depend on scenarios: welding for structural joints (with post-weld zinc touch-up) and self-tapping screws for non-load-bearing parts, avoiding excessive force that damages the zinc layer.
🔍 Maintenance & Storage: Avoid direct contact with strong acids, alkalis, or saltwater to prevent zinc layer degradation. Outdoor installations in coastal or industrial pollution areas should have additional paint coating. Clean surfaces with neutral detergent, repair small coating scratches with zinc-rich paint promptly, and inspect the zinc layer integrity quarterly. Store coils in dry, ventilated warehouses, away from moisture and acidic fumes.
| Parameter | Details |
|---|---|
Product Name |
Galvanized Steel Coil |
Material |
Q195, Q235 SGCC, SGCH, SGC340 SGC400 SGC440 SGC490 SGC570 SGHC SGH340 SGH400 SGH440 SGH490 SGH540 DX51D DX52D DX53D DX54D S220GD S250GD S280GD S320GD S350GD S400GD S500GD S550GD |
Thickness |
0.12mm ~ 10mm |
Width |
100mm ~ 2000mm |
Length |
Customer required (1–12m) |
Zinc Coating |
40g/m² – 275g/m² |
Tolerance |
Thickness: ±0.01mm | Width: ±5mm | Length: ±5mm |
Surface |
Regular spangle, Minimal spangle, Zero spangle, Bright and Big spangle |
Technique |
Cold Rolled |
MOQ |
1 Ton |
Payment Terms |
T/T, L/C, Western Union, etc. |
Price Term |
Ex-work, FOB, FCA, CIF, CFR, DDU, etc. |
Package |
Export standard package, suitable for all kinds of transport, or as required |
Delivery Time |
Within 15 days after paying the deposit |
Application |
Widely used in making pipes, cutting sheets, making small tools and so on |
Advantages |
✅ Reasonable price with excellent quality ✅ Abundant stock and prompt delivery ✅ Rich supply and export experience, 24-hour sincere service |
