Product Overview
Our Customized Specification Cold Rolled Annealed Coil and Sheet is a precision flat steel product engineered to deliver superior surface quality, strict dimensional tolerances, and stable mechanical performance.
Compared to standard hot-rolled alternatives, our cold-rolled annealed steel provides:
Superior Surface Finish: Ideal for high-end exposed applications and post-treatments like plating, painting, and coating.
Precision Thickness Accuracy: Extremely tight tolerances down to the micron level for seamless automated stamping.
Enhanced Ductility and Formability: Optimized elongation properties to prevent cracking during complex deep drawing.
Consistent Mechanical Performance: Uniform hardness and yield strength across the entire coil to reduce factory scrap rates.
We do not just sell steel; we engineer custom supply solutions. From material selection and grade optimization to strict quality inspection and complex international shipping, we ensure your production line runs without interruption.
Technical Specifications
|
Product |
Customized Cold Rolled Annealed Coil and Sheet |
|
Thickness Range |
0.3mm - 3.0mm (Customizable to ultra-precise tolerances) |
|
Width |
Customized according to client manufacturing requirements |
|
Coil Weight |
Customized to fit your uncoiler capacity |
|
Product Form |
Coils, Slit Bands (Strip), or Cut-to-Length Sheets |
|
Edge Finish |
Mill Edge or Precision Slit Edge |
|
Surface Finish |
Smooth, Bright, Standard Matte, Oiled (Anti-rust), or Dry |
|
Standards |
ASTM, EN, JIS, DIN, GB |
|
Certifications |
ISO 9001, 2015, IATF 16949 (Automotive Grade Quality Management) |
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Key Steel Grades |
SPCC, SPCD, SPCG, DC01, DC03, DC04, Q195, Q235, Q345 |
Tailored Steel Solutions for Diverse Applications
Different manufacturing processes demand different steel properties. We optimize our materials to solve your specific production challenges:
Steel Grade and Performance Matching
Commercial Quality (SPCC / DC01 / Q195)
Best for: General bending, shallow drawing, and structural components.
Our Value: Excellent flat shape and consistent thickness, ensuring smooth feeding in high-speed roll forming and bending lines.
Drawing Quality (SPCD / DC03)
Best for: Stamping parts, structural brackets, and household appliance housings.
Our Value: Optimized yield strength that minimizes rebound (springback) issues, ensuring dimensional stability of your stamped parts.
Deep Drawing Quality (SPCG / DC04)
Best for: Complex automotive body panels, deep-drawn filters, and intricate precision parts.
Our Value: Exceptional elongation (A80 >= 38%) and r-value (plastic strain ratio) designed to prevent thinning and tearing in multi-stage progressive dies.
Structural Quality (Q235 / Q345)
Best for: Heavy-duty machinery frames and construction components requiring verified load-bearing capacity.
Surface Finish and Corrosion Protection Options
Smooth/Matte Finish: Features controlled surface roughness (Ra) to optimize lubricant retention during pressing and ensure superior paint adhesion.
Bright Finish: Highly reflective surface, perfect for direct plating or high-aesthetic decorative parts.
Oiled Surface: Coated with premium, easily washable anti-rust oil to guarantee up to 6 months of rust-free storage under normal warehouse conditions.
Dry Surface: Supplied without oil, prepared for immediate welding or adhesive bonding processes.
Rigorous Quality Control System
To ensure zero-defect delivery, we implement a multi-stage quality assurance protocol aligned with ISO 9001 and IATF 16949 standards.
Step 1: Raw Material Verification -> Step 2: Inline Process Control -> Step 3: Final Product Inspection -> Step 4: Secure Export Packaging
Every Shipment Includes Full Traceability Documentation
Mill Test Certificate (MTC) according to EN 10204 3.1, detailing exact chemical heat analysis and physical test results.
Mechanical Property Test Report (Tensile strength, Yield strength, Elongation, and Hardness).
Dimensional Tolerance Report (Continuous thickness gauge logs).
Third-Party Inspection (Optional): We fully support and coordinate independent testing with global bodies like SGS, TUV, or BV before dispatch.
Seaworthy Export Packaging and Logistics
We understand that marine transit presents severe challenges like moisture, salt spray, and physical impact. Every steel coil is packaged to survive the toughest journeys:
Inner Layer: Heavy-duty anti-rust volatile corrosion inhibitor (VCI) paper or film.
Middle Layer: High-density moisture-barrier plastic wrapping.
Outer Layer: Heavy galvanized steel sheet protection with robust outer/inner metal edge guards.
Securing: Radial and circumferential steel strapping bands, loaded onto reinforced wooden or steel skids.
Container Protection: Desiccant gel packs placed inside every container to prevent condensation (container rain).
Why Global Buyers Trust Our Supply
Direct Mill Resources: Strong partnerships with Tier-1 steel mills, guaranteeing consistent chemistry and reliable lead times even during market volatility.
Customized Processing: In-house slitting and cut-to-length capabilities to deliver exact dimensions, reducing your processing waste.
Global Export Expertise: Decades of experience managing international customs clearance, offering flexible Incoterms including FOB, CFR, CIF, and DDP.
FAQ
