Color Steel Sheet - ASTM Certified Mill Direct Supplier
Supplier's customization ability
- Drawing-based customization
- Sample-based customization
- Full customization
Minimum order quantity: 1 ton
Shipping total: To be negotiated
- Lead time:
- confirmed with the quotation
- Packaging:
- standard export packing
- Samples:
- available on request
Product details
Technical Specifications of Color Steel Sheet
| Property | Parameter | Description |
|---|---|---|
| Product Name | Color Steel Sheet | Pre-painted / color-coated steel sheet with organic coating on substrate |
| Material Grade | TDC51D, TDC52D, TDC53D (EN); CGCC, CGCD (JIS); Q/BQB 440 (GB) | Equivalent to ASTM A755/A755M; base metal: cold-rolled or hot-dip galvanized steel |
| Standard Compliance | EN 10169, JIS G 3312, GB/T 12754, ASTM A755/A755M | International standards for continuously organic-coated flat-rolled steel |
| Chemical Composition | C ≤ 0.12%, Mn ≤ 0.60%, P ≤ 0.045%, S ≤ 0.045%, Si ≤ 0.50% | Base substrate composition; coating layer adds Zn or Zn-Al alloy protection |
| Tensile Strength | 270–550 MPa | Varies by substrate grade; TDC51D: ≥270 MPa; higher-strength grades up to 550 MPa (EN 10169) |
| Yield Strength | 140–420 MPa | TDC51D: ≥140 MPa; structural grades (e.g., TDC53D): ≥280 MPa |
| Elongation | ≥20% (A80mm) | Typical for forming grades; ensures good formability and bending performance |
| Coating Type | Polyester (PE), PVDF, SMP, HDP, Epoxy | Top coat + primer system; PVDF offers superior UV and weather resistance |
| Coating Thickness | Top coat: 15–25 µm; Primer: 5–7 µm; Back coat: 7–15 µm | Total dry film thickness; customizable per application requirement |
| Zinc Coating Mass | Z60–Z275 g/m² (hot-dip); ZF60–ZF120 g/m² (Galfan) | Per EN 10346 / GB/T 2518; determines corrosion resistance level |
| Thickness Range | 0.14 mm – 1.50 mm | Standard commercial thickness; custom thickness available upon request |
| Width Range | 600 mm – 1,250 mm | Slit coil or sheet width; standard widths: 750, 900, 1,000, 1,200 mm |
| Length / Coil Weight | Sheet: 1,000–6,000 mm; Coil: 3–8 MT per coil | Cut-to-length sheets or full coils available; inner diameter 508/610 mm |
| Surface Finish | Smooth, embossed, matte, high-gloss | RAL color system available; gloss level 10–80 GU (60° geometry) |
| Application | Roofing, wall cladding, sandwich panels, home appliances, garage doors, HVAC ducts | Widely used in construction, industrial buildings, and household appliance manufacturing |
| Certification | ISO 9001, CE Marking, SGS, BV, TÜV | Mill test certificate (MTC) per EN 10204 3.1 available upon request |
| Packaging | Coils: eye-to-sky or eye-to-wall on wooden pallet; sheets: bundled with steel strapping | Waterproof paper + plastic film wrapping; suitable for sea and land transport |
| MOQ | 25 MT per order (coil); 5 MT per order (sheet) | Mixed specifications accepted; sample order negotiable |
Color Steel Sheet - ASTM Certified Mill Direct Supplier
Color steel sheet serves as one of the most versatile and cost-efficient building materials in modern construction, combining structural strength with decorative surface performance. As an ASTM-certified mill direct supplier, we manufacture and supply premium grade color steel sheet engineered to meet the rigorous demands of roofing, wall cladding, industrial warehouses, and prefabricated structures. Our product line covers a full spectrum of base metal thicknesses, coating systems, and color finishes, ensuring compatibility with diverse architectural and industrial requirements. Whether you are sourcing for large-scale commercial developments or specialized agricultural facilities, our color coated steel panels deliver consistent dimensional accuracy, outstanding anti-corrosion properties, and long-term surface adhesion. Backed by in-house quality control laboratories and international certifications including ASTM A755 and EN 10169, we provide mill-direct rates that eliminate intermediary markups, enabling procurement teams to optimize project budgets without compromising material integrity.

What is Color Steel Sheet?
Color steel sheet, also referred to as pre-painted galvanized steel or PPGI/PPGL sheet, is a cold-rolled steel substrate coated with zinc or zinc-aluminum alloy and subsequently finished with one or more layers of organic paint or polymer coating. The result is a lightweight yet durable panel that combines metallic structural properties with weather-resistant decorative surfaces, making it suitable for roofing, facades, interior partitions, and appliance manufacturing.

Color Steel Sheet Manufacturing Process
Production begins with cold-rolled or hot-dip galvanized coils that undergo surface degreasing, chemical passivation, and primer application before entering a continuous coil coating line. Base coat and topcoat layers — typically polyester (PE), high-durability polyester (HDP), polyvinylidene fluoride (PVDF), or silicone-modified polyester (SMP) — are applied at controlled thicknesses between 5 µm and 25 µm per layer, then cured in precision ovens at temperatures ranging from 200°C to 260°C to achieve optimal adhesion and flexibility.
Color Steel Sheet Technical Specifications
Our color steel sheet is produced to the following standard parameters: base metal thickness from 0.18 mm to 1.50 mm; total coil width from 600 mm to 1,500 mm; zinc coating weight from Z60 to Z275 g/m² per ASTM A653; yield strength ranging from 250 MPa to 550 MPa; paint dry film thickness of 15–25 µm topcoat with 5–7 µm primer; gloss level from 10 to 85 GU; and pencil hardness of H to 2H. Color matching follows RAL and custom standards with ΔE ≤ 1.0 tolerance.
Get a Competitive Quote for Color Steel Sheet
Partner with our mill-direct team to access cost-effective pricing, rapid lead times, and full technical documentation for your color steel sheet orders. Our specialists are ready to assist with material selection, coating system recommendations, and custom dimension requirements tailored to your project specifications.

- 24/7 customer support available
- Free samples for quality evaluation
- Competitive pricing for bulk orders
- Professional technical consultation
Contact us today to get your free quote within 24 hours!