Cold Rolled Carbon Steel Coil — Factory Direct Supplier | Huaxia-Steel

Cold rolled carbon steel coil (CRC) is the precision surface of the steel world: pickled hot-rolled substrate reduced at room temperature to gauge, annealed, and skin-passed to deliver tight thickness tolerance, uniform flatness, and a smooth finish ready for painting, galvanizing, or direct forming. Appliance panels, automotive inner panels, furniture tube, drums, and precision strip all start here. Huaxia-Steel supplies cold rolled coil from 0.25–3.0 mm thick, 600–1520 mm wide, in SPCC/DC01 through SAE 1008–1010 equivalents, with mill edge or slit edge, oiled or dry, full EN 10204 3.1 certification.

Product Overview

Thickness range: 0.25–3.0 mm (0.3–2.5 mm is the economic sweet spot); width 600–1520 mm, slit to your required strip width ±0.1 mm.

Delivery conditions: annealed (A), annealed + skin passed (S), hard/half-hard/full-hard temper rolled (1/8H–FH) for direct use without annealing.

Surface: matte finish standard; bright finish on request; oiled (anti-rust) or chemically passivated/dry for laser cutting shops.

Coil weight: 3–15 MT standard; tail-welded “milk coil” loops for continuous processing lines by arrangement.

Equivalents: JIS G3141 SPCC/SPCD/SPCE, EN 10130 DC01–DC06, ASTM A1008 CS/DS/DDS/EDS, GB/T 708 SPCC.

Specification Table

Parameter	Range / Value
Thickness tolerance	±0.03 mm at 0.5–1.0 mm; ±0.04 mm at 1.0–2.0 mm (EN 10130 normal); ±50% of that for “special”
Width tolerance (mill edge)	+10 / 0 mm; slit edge ±0.1–0.25 mm
Yield strength (DC01/SPCC, skin passed)	140–280 MPa
Tensile strength (DC01)	270–410 MPa
Elongation (DC01, A80)	≥ 28%
Camber	≤ 1 mm per 2 m
Coil ID	508 mm standard (610 mm optional)
Chemistry (DC01 typ.)	C ≤ 0.12%, Mn ≤ 0.60%, P ≤ 0.045%, S ≤ 0.045%

Available Grades

EN 10130	JIS G3141	ASTM A1008	Forming Character
DC01	SPCC	CS Type B	General bending, roll forming
DC03	SPCD	DS	Drawing quality, deeper forms
DC04	SPCE	DDS	Deep drawing, appliance shells
DC05 / DC06	— (equivalent special grades)	EDDS	Extra/interstitial-free deep drawing
HC260LA / HSLA grades	—	HSLAS Gr 40–70	Structural strip, higher yield

Manufacturing Standards and Process

Hot rolled coil (typically 2.0–5.5 mm) is pickled (HCl), then cold reduced 40–80% on tandem or reversing mills to target gauge. Batch (bell) or continuous annealing restores ductility; skin passing (temper rolling, 0.5–2% reduction) removes yield-point elongation and stretcher strain, sets surface roughness (RA 0.4–1.2 μm standard matte), and improves flatness. For laser-cutting users, unoil and passivated options prevent oil smoke at the beam. Thickness is measured continuously by X-ray or isotope gauge with automatic AGC — the reason CRC holds ±0.03 mm where hot rolled cannot.

Applications

Appliance panels and housings (washing machines, refrigerators)

Automotive inner/structural panels and brackets

Furniture tube and roll-formed profiles after slitting

Drums, pails, electrical enclosure sheet

Battery casings, compressor shells (DC04/DC05)

Galvanizing/pre-paint substrate (feedstock to HDG and color-coated lines)

Quality Assurance

Continuous thickness gauge records per coil, shipped as data on request

Mechanical + chemical testing per EN 10130 / JIS / ASTM lot rules

Surface inspection (automatic surface inspection system or 100% operator survey): no scale, no rolling defects beyond stated class

Flatness and camber survey at head/tail and mid-coil

Oil film weight verification for oiled product (typ. 0.5–1.5 g/m² per side)

EN 10204 3.1 certificates; SGS/BV third-party inspection welcome

Packaging and Shipping

Eyebrow (eye-to-sky) or eye-horizontal packing: coil wrapped in VCI paper + plastic film, protected with inner/outer steel or fiberboard rings, strapped to wooden or steel skids (IPPC fumigated wood). Containerized shipment up to 26 MT per 40′ coil container; break-bulk for full vessel lots. Each coil is tagged with heat number, grade, size, and weight matching the MTC; documentation set issued in English pre-shipment.