| Grade | Substrate Type | Characteristics & Applications |
|---|---|---|
| DC51D+ZM | Low Carbon Steel Substrate | Suitable for home appliance casings and building panels with general forming requirements |
| S350GD+ZM | High Strength Structural Steel Substrate | Used for load-bearing applications such as automotive structural components and solar PV mounting systems |
| S550GD+ZM | Ultra-High Strength Hot Rolled Substrate | Ideal for machinery manufacturing and large-scale steel structures |
Dimensions and Specifications
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Thickness Range: 0.27~9.0mm, with 0.5~2.5mm commonly used in construction and home appliance applications.
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Width Options: Standard widths range from 900 to 1524mm, with custom cut-to-length services available (e.g., universal size 1250mm).
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Coating Thickness: 40~450g/m² (both sides), with ≥275g/m² recommended for highly corrosive environments.
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Coil Weight Limit: Maximum coil weight up to 25 tons, suitable for continuous production line requirements.
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Item Category
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Specific Parameters
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Remarks (Common Specifications/Description)
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Product Name
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Hot-dip Zinc-Aluminum-Magnesium Alloy Coated Steel Coil
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Abbreviation: Zn-Al-Mg Coil, ZAM Coil, ZM Coil
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Executive Standard
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GB/T 19879, EN 10346, JIS G3321
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Can be customized according to customer’s specific requirements
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Common Specifications & Dimensions
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Thickness
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0.3–4.0mm; Common: 0.5, 0.8, 1.0, 1.2, 1.5, 2.0mm
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Width
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600–1500mm; Common: 914, 1200, 1250, 1500mm
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Form/Length
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Coil (C coil), can be leveled, slitted and cut to length
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Inner Diameter
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508mm / 610mm (conventional standard inner diameter)
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Common Grade & Strength Level
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Ordinary Forming
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SGCC+ZM, SGC340+ZM
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High Yield Structure Use
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S350GD+ZM, S450GD+ZM, S550GD+ZM
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National/Japanese Standard
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Q195+ZnAlMg, Q235B+ZnAlMg, SGCH+ZMA
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Base Plate Material
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High-quality Low-carbon Cold-rolled Steel Strip
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Yield strength 180–550MPa, easy to stretch, bend and punch
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Coating Information
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Coating Composition
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Zn (Zinc) + Al (Aluminum) + Mg (Magnesium) + Trace Si (Silicon)
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Coating Weight
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40–300g/㎡; Common: 180g/㎡, 275g/㎡ (high corrosion resistance)
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Coating Structure
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Ternary eutectic structure, high density and excellent corrosion resistance
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Surface Treatment
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Skin Pass (S), Passivation (C), Chromium-free Passivation, Anti-fingerprint (AFP), Oil Coating (O)
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Customizable: Film Coating, Printing, Pre-coating
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Core Performance
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Corrosion Resistance, Cut Self-healing, High Hardness & Wear Resistance, Easy Forming, Environmentally Friendly (Chromium-free)
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Corrosion resistance is 5–10 times that of ordinary galvanized steel, chromium-free and recyclable
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Application Fields
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Photovoltaic, Construction, Animal Husbandry, Transportation, Home Appliances, Electrical Equipment, etc.
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Photovoltaic支架, Color Steel Tile, Breeding Greenhouse, Distribution Box, etc.
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