Engineering Color Steel Sheet - Mill Direct Manufacturer
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 Engineering Building Color Steel Sheet
| Property | Parameter | Description |
|---|---|---|
| Product Name | Engineering Building Color Steel Sheet | Pre-painted galvanized/galvalume steel sheet for structural and architectural applications |
| Material Grade | DX51D, DX52D, S280GD, S350GD | Equivalent to ASTM A755, JIS G3312, EN 10346 substrate grades |
| Standard Compliance | GB/T 12754, EN 10169, ASTM A755/A755M, JIS G3312 | Meets international pre-painted steel coil and sheet standards |
| Base Metal Coating | Galvanized (Z60–Z275 g/m²), Galvalume (AZ50–AZ150 g/m²) | Hot-dip zinc or zinc-aluminum alloy coating for corrosion resistance |
| Chemical Composition | C ≤0.12%, Mn ≤0.60%, P ≤0.045%, S ≤0.045%, Si ≤0.50% | Low-carbon steel substrate ensuring formability and weldability |
| Tensile Strength | 270–560 MPa | Per EN 10346 / GB/T 12754; varies by grade (e.g., S280GD: ≥360 MPa) |
| Yield Strength | 220–420 MPa | S280GD: ≥280 MPa; S350GD: ≥350 MPa per EN 10346 |
| Elongation | ≥16% (A80mm) | Ensures good bending and roll-forming performance |
| Paint System | Top coat: 15–25 µm; Primer: 5–7 µm; Back coat: 7–12 µm | Polyester (PE), PVDF, SMP, HDP coating options available |
| Thickness Range | 0.30 mm – 1.50 mm | Total thickness including base metal and paint layers |
| Width Range | 600 mm – 1,250 mm | Custom slit widths available upon request |
| Length / Coil Weight | Coil: 3–10 MT; Sheet: 1,000–6,000 mm | Supplied as coils or cut-to-length sheets per customer specification |
| Surface Finish | Smooth, embossed, matte, high-gloss | RAL color customization available; uniform paint adhesion and gloss |
| Application | Roof panels, wall cladding, sandwich panels, purlins, industrial buildings | Widely used in warehouses, factories, commercial and agricultural structures |
| Certification | ISO 9001, CE Marking, SGS, BV | Third-party inspection and mill test certificates (MTC) available |
| Packaging | Eye-to-sky or eye-to-wall coils; wooden pallet for sheets | Waterproof paper + steel strip bundling; seaworthy export packaging |
| MOQ | 25 MT per order | Mixed specifications accepted; OEM/ODM color and size orders supported |
Engineering Color Steel Sheet - Mill Direct Manufacturer
Engineering building color steel sheet serves as one of the most versatile and structurally reliable cladding materials in modern construction, finding extensive application across industrial warehouses, commercial complexes, agricultural facilities, and prefabricated building systems. As a mill-direct manufacturer, we supply premium grade color steel sheet engineered to meet the rigorous demands of large-scale infrastructure projects worldwide. Our products combine a cold-rolled steel substrate with a precisely applied polymer coating system, delivering outstanding anti-corrosion properties and long-term aesthetic retention even in harsh environmental conditions. With a base metal thickness ranging from 0.3 mm to 1.2 mm and a total coating thickness of 25–35 microns, these panels offer an exceptional strength-to-weight ratio that reduces structural load while accelerating installation timelines. Whether you are sourcing for roofing, wall cladding, or composite panel systems, our engineering building color steel sheet provides the performance consistency and dimensional accuracy that demanding construction projects require.
What is Engineering Building Color Steel Sheet?
Engineering building color steel sheet is a pre-painted, cold-rolled or hot-dip galvanized steel panel coated with high-durability polymer finishes such as polyester (PE), silicon-modified polyester (SMP), or polyvinylidene fluoride (PVDF). It is purpose-engineered for structural and architectural applications in industrial, commercial, and civil construction, combining mechanical strength with weather-resistant surface protection in a single, factory-finished product.

Engineering Building Color Steel Sheet Manufacturing Process
Production begins with a hot-dip galvanized or Galvalume steel coil substrate, which undergoes continuous roll-forming after chemical pre-treatment and chromate passivation. A primer coat is applied at 5–8 microns, followed by a top coat of PE, SMP, or PVDF at 15–25 microns, cured in a high-temperature oven at 230°C–260°C. The finished coil is precision-slit and profiled to specified dimensions, ensuring a uniform coating adhesion rating of Grade 0 per ISO 2409 and a pencil hardness of H–2H.
Engineering Building Color Steel Sheet Technical Specifications
Our engineering color steel sheet meets GB/T 12754, EN 10169, and ASTM A755 standards with the following core parameters:

- Base metal thickness: 0.30 mm – 1.20 mm (±0.02 mm tolerance)
- Zinc coating weight: Z60–Z275 g/m² (hot-dip galvanized) or AZ50–AZ150 g/m² (Galvalume)
- Yield strength: 280–550 MPa depending on steel grade
- Tensile strength: 360–600 MPa minimum
- Panel width: 600 mm – 1,250 mm (effective coverage width)
- Coating system: PE / SMP / PVDF with 10–25 year weathering warranty
- Color range: RAL standard palette, custom colors available with MOQ
Each batch undergoes salt spray testing exceeding 500 hours per ASTM B117, ensuring outstanding anti-corrosion performance in coastal, industrial, and high-humidity environments.

Get a Competitive Quote for Engineering Building Color Steel Sheet
Partner with our mill-direct supply chain to access cost-effective pricing on engineering building color steel sheet without intermediary markups. We support bulk orders with flexible lead times, full material certifications, and dedicated technical consultation to match the right specification to your project requirements.
- 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!