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Roll Formed Color Steel Sheet - Mill Direct Supplier
China
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 Roll Formed Color Steel Sheet
| Property | Parameter | Description |
|---|---|---|
| Product Name | Roll Formed Color Steel Sheet | Cold roll-formed steel sheet with pre-painted color coating, used for roofing, wall cladding and structural panels |
| Material Grade | S280GD / S350GD (EN); CGCC / CGCD (JIS G3302); Q235 / Q345 (GB) | Hot-dip galvanized or galvalume base metal with organic color coating; equivalent to ASTM A755M Grade 33/50 |
| Standard Compliance | EN 10346, ASTM A755M, JIS G3302, GB/T 12754 | Meets international standards for continuously hot-dip coated steel strip and sheet with organic coating |
| Chemical Composition (Base Steel) | C ≤ 0.12%, Mn ≤ 0.60%, P ≤ 0.045%, S ≤ 0.045%, Si ≤ 0.50% | Low-carbon steel substrate ensuring good formability and roll-forming performance |
| Zinc Coating Mass | Z100–Z275 (g/m²) / AZ50–AZ150 (g/m²) | Galvanized (Z) or Galvalume/Zincalume (AZ) coating; double-side total mass per EN 10346 / ASTM A653 |
| Tensile Strength | 280–550 MPa | Varies by grade; S280GD: ≥ 360 MPa; S350GD: ≥ 420 MPa per EN 10346 |
| Yield Strength | 280–420 MPa | S280GD: ≥ 280 MPa; S350GD: ≥ 350 MPa; ensures structural rigidity after roll forming |
| Elongation | ≥ 16–20% (A80mm) | Sufficient ductility to withstand roll-forming process without cracking or delamination of coating |
| Base Metal Thickness | 0.30–1.20 mm | Common commercial thickness range; custom gauges available upon request |
| Sheet Width (Effective Cover) | 600–1250 mm (coil width); effective cover 750–1000 mm | Depends on profile design; standard effective cover widths for roofing/wall panel profiles |
| Profile Length | Customized, typically 2000–12000 mm | Cut-to-length per project requirement; tolerance ±5 mm per GB/T 12754 |
| Color Coating (Top) | Polyester (PE) 15–25 µm; PVDF 25–35 µm; SMP 20–25 µm | Top coat applied by coil coating process; PVDF offers superior UV and weather resistance |
| Surface Finish | Smooth, embossed, or matte; RAL color system available | Primer coat + finish coat; back coat 5–15 µm; pencil hardness ≥ 2H; T-bend ≤ 2T |
| Application | Roofing, wall cladding, ceiling panels, industrial buildings, warehouses, cold storage | Widely used in commercial, agricultural and industrial construction for lightweight envelope systems |
| Certification | ISO 9001, CE Marking, SGS, BV | Third-party inspection and quality management system certification available upon request |
| Packaging | Coil: eye-to-sky or eye-to-wall on steel pallet; Sheet/Panel: bundled with steel strapping and waterproof paper | Export seaworthy packaging; moisture-proof film wrapping for ocean freight |
| MOQ | 5 Metric Tons per color/profile | Mixed container orders accepted; standard 20' FCL ≈ 20–25 MT depending on profile |
Roll Formed Color Steel Sheet - Mill Direct Supplier
Roll formed color steel sheet serves as one of the most versatile and cost-effective building materials in modern construction, combining structural integrity with aesthetic appeal. Manufactured through a continuous cold-forming process, these panels feature a pre-coated metallic surface that delivers outstanding anti-corrosion properties while maintaining a visually consistent finish across large-scale projects. From industrial warehouses and commercial roofing systems to agricultural buildings and residential cladding, roll formed color steel sheet finds extensive application in virtually every sector of the construction industry. With base metal thicknesses typically ranging from 0.3 mm to 1.2 mm and coating weights conforming to ASTM A755 or EN 10169 standards, these sheets offer a compelling balance of durability, formability, and long-term performance. As a mill-direct supplier, we eliminate intermediary markups, ensuring you receive premium-grade product at genuinely competitive pricing backed by full traceability documentation.
What is Roll Formed Color Steel Sheet?
Roll formed color steel sheet is a cold-rolled steel substrate — typically galvanized (Z100–Z275 g/m²) or Galvalume coated — that undergoes continuous roll forming to achieve specific cross-sectional profiles such as corrugated, trapezoidal, or standing seam configurations. The surface is pre-painted with polyester (PE), high-durability polyester (HDP), or polyvinylidene fluoride (PVDF) coatings, delivering both decorative and protective functionality in a single integrated panel.
Roll Formed Color Steel Sheet Manufacturing Process
Production begins with premium cold-rolled steel coils that are hot-dip galvanized or Galvalume-treated to achieve a zinc or zinc-aluminum alloy protective layer. Coils then pass through a multi-stage roll forming mill — comprising 10 to 24 forming stations — that progressively shapes the flat strip into the desired profile without heating. A chromate conversion pre-treatment is applied prior to a primer coat (5–8 µm dry film thickness) and a topcoat layer (15–25 µm), followed by a curing oven at 230°C to ensure maximum adhesion and color uniformity.
Roll Formed Color Steel Sheet Technical Specifications
Standard roll formed color steel sheet is available in the following verified parameters:
- Base Metal: Cold-rolled steel (SPCC / DX51D+Z) with yield strength ≥ 280 MPa per EN 10346
- Substrate Thickness: 0.30 mm – 1.20 mm (tolerance ±0.02 mm)
- Zinc Coating Weight: Z60 – Z275 g/m² (double-side total)
- Topcoat Type: PE / HDP / SMP / PVDF; dry film thickness 15–25 µm
- Panel Width: Effective coverage 750 mm – 1,050 mm; coil width up to 1,250 mm
- Tensile Strength: 340 MPa minimum (structural grade S350GD per EN 10346)
- Color Retention: PVDF coating maintains ΔE ≤ 5 after 20-year outdoor exposure (ASTM D2244)
- Salt Spray Resistance: ≥ 1,000 hours per ASTM B117 without red rust
Custom profiles, RAL color matching, and cut-to-length service are available upon request with a minimum order quantity of 5 metric tons.
Get a Competitive Quote for Roll Formed Color Steel Sheet
Partner with our mill-direct team to access superior quality roll formed color steel sheet at transparent, bulk-friendly pricing. Our technical specialists are ready to recommend the optimal profile, coating system, and steel grade for your specific project requirements — ensuring zero over-specification and maximum cost efficiency.
- 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!
