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Help CenterSteel Coil & Strip & Cold-Rolled Steel Coil，DP590/780/980、QP980、DC01、DC04、DC06
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Steel Coil & Strip & Cold-Rolled Steel Coil，DP590/780/980、QP980、DC01、DC04、DC06NegotiableMOQ: 5 Metric Tons -
Steel Coil & Strip & Cold-Rolled Steel Coil，DP590/780/980、QP980、DC01、DC04、DC06NegotiableMOQ: 5 Metric Tons
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Steel Coil & Strip & Cold-Rolled Steel Coil，DP590/780/980、QP980、DC01、DC04、DC06NegotiableMOQ: 5 Metric Tons
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Steel Coil & Strip & Cold-Rolled Steel Coil，DP590/780/980、QP980、DC01、DC04、DC06NegotiableMOQ: 5 Metric Tons
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Steel Coil & Strip & Hot Rolled Steel Coil，EN 10025、ASTM A36/A572、JIS G3101NegotiableMOQ: 5 Metric Tons
Cold-Rolled Steel Coil — Detailed Product Description
1. Product Overview
Cold-Rolled Steel Coil is produced by taking hot-rolled steel coil as raw material and rolling it at room temperature below the recrystallization temperature.
Production Process:Hot-rolled Steel Coil → Pickling (oxide scale removal) → Cold Continuous Rolling → Annealing (optional) → Temper Rolling → Slitting / Rewinding
Core Advantages: Smooth surface, precise dimensional tolerance, high strength and excellent stamping performance; it is a basic material widely used in high-end manufacturing industries.
2. Main Specification Parameters
Thickness: 0.15–3.5 mm (common: 0.5–2.0 mm)
Width: 500–1850 mm (common: 1000mm / 1250mm / 1500mm)
Inner Diameter: 508 mm (20 inch), 610 mm (24 inch)
Coil Weight: 3–15 tons (max up to 45 tons)
Thickness Tolerance: ±0.01～±0.015 mm (high precision)
Surface Roughness: Ra ≤ 0.8–1.2 μm
3. Common Grades & Mechanical Properties
| Grade | Standard | Yield Strength (MPa) | Tensile Strength (MPa) | Elongation (%) | Main Application |
|---|---|---|---|---|---|
| DC01 | EN 10130 | 140–280 | 270–410 | ≥28 | General stamping & structural parts |
| DC04 | EN 10130 | 140–210 | 270–350 | ≥36 | Deep drawing parts / automotive inner panels |
| DC06 | EN 10130 | 120–180 | 270–330 | ≥40 | Extra deep drawing & complex forming |
| SPCC | JIS G3141 | ≥140 | 270–410 | ≥30 | General use / home appliance shell |
| St12 | DIN 1623 | 140–280 | 270–410 | ≥28 | General grade & simple bending |
High Strength Steel Series: DP590 / DP780 / DP980, QP980, yield strength 350–900 MPa, applied for automotive structural and safety parts.
4. Surface Quality & Treatment
Surface Grade
FA: Ordinary surface, slight defects allowed
FB: Commercial surface grade for appearance parts
FC: High-grade surface without visible defects, for high-end home appliances & automotive outer panels
Surface Treatment
Mill Finish: Coated with anti-rust oil for short-term rust prevention
Phosphating / Passivation: Improve painting adhesion and corrosion resistance
Galvanized / Galvalume: GI / GL coating with superior anti-corrosion performance
5. Product Features
High dimensional accuracy with strict tolerance on thickness, width and flatness
Excellent surface finish, free of oxide scale and pitting, suitable for painting and electroplating
Stable mechanical performance with controllable hardness, strength and toughness
Good workability for bending, stamping and welding, applicable for complex forming process
6. Application Fields
Automotive Industry: Inner & outer body panels, door panels, hoods, B-pillars and anti-collision beams
Home Appliance: Refrigerator, washing machine, air conditioner shell, microwave liner and panels
Precision Machinery: Motor housing, gear parts, bearing base and precision stamping parts
Construction & Decoration: High-grade decorative plates, ceiling, doors, windows and furniture components
Packaging Industry: Food cans, beverage cans and metal containers
7. Packaging & Transportation
Packaging: Wrapped with anti-rust paper + plastic film sealed + steel strip bundled, protected by edge guard boards at both ends
Marking: Clearly marked with steel grade, size, batch number, weight, production date and manufacturer logo
Storage & Shipment: Keep dry and rainproof; avoid violent collision; store flat or vertically to prevent deformation
8. Executive Standards
China GB Standard: GB/T 708, GB/T 15675
European Standard: EN 10130, EN 10088
Japanese JIS Standard: JIS G3141, JIS G3135
American ASTM Standard: ASTM A366, ASTM A1008
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