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High-Quality Galvanized Steel Coil for Roofing, Ducting & Construction
Hot-dip and electro-galvanized coils available in full thickness range with excellent corrosion resistance and spangle options. Ideal for roofing sheets, ducting, framing.
What Is Galvanized Steel Coil?
Galvanized steel coil is cold or hot rolled steel coated with a layer of zinc to provide corrosion resistance. It is one of the most common materials used in construction, HVAC, automotive, agricultural, and appliance manufacturing.
We supply:
Hot-dip galvanized coil (HDG) – strong zinc adhesion, longer outdoor lifespan
Electro-galvanized coil – smooth, precise coating, ideal for indoor or painted use
Zinc coating options: Z40–Z275 g/m²
Spangle options: regular, minimal, zero spangle
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Optional product specifications
| Property | Details |
|---|---|
| Base Metal | Cold rolled / Hot rolled steel |
| Coating Type | Zinc (GI), or Zinc-Iron (Galvanneal) |
| Zinc Coating | 40–275g/m² |
| Thickness | 0.12mm – 3.0mm |
| Width | 600mm – 1500mm |
| Spangle Type | Regular / Small / Zero |
| Surface Treatment | Chromated, Oiled, Dry, Skin-passed |
| Inner Diameter | 508 / 610mm |
| Standard | ASTM A653 / JIS G3302 / EN 10346 |
* Optional: anti-fingerprint coating, tension leveling, slit coil supply.
Processing & Packaging
Slitting & edge trimming
Chromated/oiled surface conditioning
Eye to wall / eye to sky packaging
Waterproof + steel-strapped export bundling
Container loading with edge protectors
Why Choose Xishang?
- Full stock of Z60–Z275 coils in multiple thicknesses
- Slitting and custom width available
- Spangle control and surface finish customization
- SGS, BV, ISO certified with MTC
- Factory-direct pricing with low MOQ (3 tons)
- Fast lead time and international packing
Frequently Asked Questions
Q1: What is the difference between regular and zero spangle?
A:
Regular spangle has visible zinc crystal patterns; zero spangle has a smooth, uniform surface ideal for painting.
Q2: What’s the lifespan of galvanized coil outdoors?
A:
With Z275 coating, hot-dip galvanized coil can last over 20 years in mild climates.
Q3: Can I request a specific zinc coating weight?
A:
Yes, we support Z40 to Z275 based on corrosion resistance needs.
Q4: What’s the difference between HDG and electro-galvanized coil?
A:
HDG has thicker zinc and better corrosion resistance; electro-galvanized is thinner, smoother, and better for painting.
Q5: Do you offer small coil weights?
A:
Yes, we can produce coils as small as 1–3 tons per size with steel strapping.
