Cold Rolled Coil (CRC)

Description

1. Product Overview

Cold Rolled Coil (CRC) is a high-precision flat steel product derived from hot-rolled pickled coils, processed through recrystallization annealing and temper rolling at ambient temperatures. It serves as the backbone for downstream manufacturing in automotive, white goods, construction, and metal packaging industries. The key value proposition lies in its superior surface finish, tight dimensional tolerances, and enhanced mechanical properties—enabling consistent, high-speed stamping and painting. Strategically, CRC remains indispensable for manufacturers transitioning toward lightweighting and just-in-time production, offering a balance between formability and structural rigidity that hot-rolled or coated products cannot replace in precision applications.

2. Key Specifications & Technical Characteristics

• Material Composition: Commercial Quality (CQ), Drawing Quality (DQ), Deep Drawing Quality (DDQ), Extra Deep Drawing Quality (EDDQ), Structural Steel (e.g., ASTM A1008, JIS G3141, EN 10130)

• Grades Available: SPCC, SPCD, SPCE, DC01, DC03, DC04, SAE1008/1010

• Purity & Surface: Oil-coated (anti-rust), dry, or phosphate-treated; Bright finish / Matte finish (Ra 0.4–1.5 µm)

• Thickness Range: 0.15 mm – 3.0 mm (±0.02 mm tolerance)

• Width Range: 600 mm – 1,550 mm (slit edge or mill edge)

• Coil ID: 508 mm / 610 mm (±5 mm)

• Coil Weight: 3 MT – 15 MT per unit

• Packaging: Anti-rust VCI paper + galvanized steel skid + radial and circumferential steel strapping + waterproof wrapping for sea freight

• Shelf Life: 6 months under dry, indoor storage (20±5°C, <60% RH) without surface oxidation

3. Core Industrial Applications

• Automotive: Inner panels, chassis brackets, wheel covers, seat rails — CRC delivers consistent hardness (HRB 40–65) for high-speed progressive dies, reducing tool wear by ~18% compared to hot-rolled substitutes.

• Home Appliances: Refrigerator liners, washing machine drums, microwave cavities — The matte surface finish ensures paint adhesion and powder coating uniformity without secondary grinding.

• Construction & HVAC: Steel framing, electrical conduits, air handler housings — CRC’s flatness (≤5 I-Units) eliminates “oil-canning” and assembly gaps, cutting rework costs.

• Metal Packaging: Aerosol cans, paint tins, drum closures — Precise thickness control enables nested stacking and leak-proof beading, reducing metal waste by up to 7% per million units.

4. Competitive Advantages

• Quality Consistency: Statistical process control (SPC) across each annealing and rolling batch; 100% automated surface inspection (pinhole, edge crack, and roll mark detection) with traceable heat numbers.

• Supply Reliability: Stocking hubs in Antwerp, Houston, Shanghai, and Dubai with guaranteed weekly dispatch; 98.6% on-time-in-full (OTIF) performance over 24 months.

• Logistics Capability: Direct mill consolidation with multiple freight forwarders; flexible Incoterms (CIF, CFR, FOB, EXW) and multimodal container / break-bulk options.

• Price Competitiveness: 3–5% below regional spot averages for equivalent JIS/EN grades, supported by long-term hot-rolled slab contracts.

• Sustainability: ISO 14001-certified mills; average 0.45 tCO2e per ton of CRC (industry average 0.68); available with Environmental Product Declaration (EPD).

• Technical Support: Full mill certificates (EN 10204 Type 3.1), forming simulation data (FLC curves), and weldability/lubrication guidance from in-house metallurgists.

5. Commercial & Supply Information

• Minimum Order Quantity (MOQ): BULK 20MT (single grade and thickness)

• Loading Capacity per 20FT Container: 18 MT – 20 MT (depending on coil OD and strapping configuration)

• Loading Capacity per 40FT Container: 24 MT – 26 MT (mixed widths and grades allowed)

• Lead Time: 21 days from mill production slot confirmation; 7 days from regional hub stock