SPCC Cold-Rolled Coil: Material Overview, Specifications, Performance, Applications, and Buying Guide

SPCC cold-rolled coil conforms to the Japanese standard JIS G3141.General commercial-grade cold-rolled carbon steel coilIt is also one of the most widely used cold-rolled materials in China's manufacturing sector. Many home appliance, hardware, and cabinet manufacturers select SPCC cold-rolled coils for stamping, bending, and welding operations.

I. Meaning of SPCC Grade Designation

SPCC letter explanation:

‑ S=Steel

- P=Plate

- C=Cold Rolled

- C = Commercial: Standard Grade

Grade Comparison: SPCC roughly corresponds to domestic Q195/Q215A and German St12. Differentiate between drawing-grade SPCD and deep-drawing-grade SPCE. SPCC is suitable for simple bending and standard stamping but not for complex deep drawing.

II. Core Performance of SPCC Cold-Rolled Coils

1. High-quality surface finishCold-rolled descaling yields a smooth, flat surface free of pitting or peeling. Excellent paint and plating adhesion makes it ideal for exposed components.

2. High dimensional accuracy: Strict thickness tolerance control, flat sheet shape, compatible with automated stamping lines to reduce scrap rates.

3. MachinabilityLow-carbon material with excellent bending, standard stamping, and welding performance. Ideal for hardware enclosures and frame components.

4. NoteSPCC does not have inherent rust resistance; it requires oil coating, painting, or galvanizing for corrosion protection during storage and in finished products. It is prone to rusting in humid environments.

III. Common Specifications

• Standard: JIS G3141

• Thickness: 0.3mm, 0.5mm, 0.8mm, 1.0mm, 1.2mm, 1.5mm, 2.0mm, 2.5mm, 3.0mm

• Width: Commonly 1000mm, 1250mm, 1500mm; supports narrow slits.

• Supply formats: steel coils, cold-rolled sheet metal (slit), and slit steel strips

• Steel Mills: Original materials from Baosteel, Angang, Shougang, Magang, etc., with mill certificates available.

Common in-stock thicknesses range from 0.8 to 2.0 mm, with 1250mm width being the industry-standard material roll width.

4. Primary Applications of SPCC Cold-Rolled Coils

1. Home AppliancesRefrigerators, washing machines, air conditioners (outer shells), and internal support panels for home appliances;

2. Electrical Cabinet: Distribution boxes, control cabinets, chassis enclosures, equipment housings;

3. Hardware FurnitureFile cabinets, shelving units, metal furniture, lighting accessories;

4. Auto Parts: Automotive interior components, standard stamped structural parts (for complex deep drawing, please select SPCD/SPCE);

5. General ManufacturingFor air ducts, signage, and general stamped parts; also suitable as substrate for galvanized or color-coated applications.

V. How to Choose Between SPCC, SPCD, and SPCE: Procurement Pitfalls to Avoid

• SPCC: Standard commercial grade; suitable for bending and simple stamping. High cost-performance ratio.Cannot perform deep drawing；

• SPCD: Draw grade; offers better ductility for moderate-depth stamping.

• SPCEDeep-drawing grade, high elongation for complex-stretch automotive parts.

Procurement Tip: If the workpiece shows stretching cracks, stop using SPCC and upgrade to SPCD or SPCE. SPCC is suitable for bending and shallow-drawn shell components and offers better cost efficiency.

6. Supporting Processing Services We Offer

In-stock SPCC cold-rolled coils from the original manufacturer. Available:

✅ Uncoil and flatten steel coils

✅ Narrow steel strip slitting and processing

✅ Precision cutting to your exact specifications

✅ Provides material specifications; supports sample trials and small-batch procurement

SPCC cold-rolled coil stock is stable. Contact us for specifications and tonnage quotes.

FAQ

Q: Will SPCC cold-rolled coils rust?

Yes. SPCC is cold-rolled steel without a protective coating. Store in a dry environment, and apply painting or galvanizing to the parts afterward for corrosion protection.

Q: Can SPCC replace DC01?

Simple bending and stamping operations can be replaced. Prioritize verifying export orders against the applicable standards and customer drawing requirements.

Q: What is the maximum thickness for SPCC?

A: Standard SPCC cold-rolled coils on the market are typically ≤3.0mm; for thicker products, hot-rolled pickled coils are recommended.