Q: What is SPCC coil?
A: SPCC is a cold-rolled low-carbon steel coil conforming to the Japanese JIS G3141 standard. It is made from hot-rolled steel strip through cold rolling, emphasizing cold working and surface quality. It is commonly used in stamped parts, electronic/appliance housings, etc.
Q: What are the complete designation rules for SPCC?
A: The standard format is SPCC - [Quenching and Tempering Degree] [Surface Condition], such as SPCC - SB: S = Standard Quenching and Tempering (Annealed + Leveling), B = Bright; Quenching and Tempering Degrees include A (Annealed Only), 1/8 Hard, 1/4 Hard, 1/2 Hard, 1 Hard; Surface Conditions are B (Bright) and D (Meat).
Q: Which Chinese national standards/European standards/American standards does SPCC correspond to?
A: National Standard ≈ GB/T 11253 Q195/Q215; European Standard ≈ EN 10130 DC01; American Standard ≈ ASTM A1008 CS Type B.
Q: What are the core requirements for the execution standards of SPCC coils?
A: JIS G3141 specifies the chemical composition (C≤0.12%, Mn≤0.50%, P/S≤0.035%), mechanical properties (tensile strength 270-410MPa, yield strength ≥180MPa, elongation ≥34%), surface/dimensional tolerances, and quenching and tempering.
Q: What is the difference between SPCC, SPHC, and SPCD?
A: SPHC = hot-rolled substrate, SPCC = cold-rolled finished product, SPCD = cold-rolled deep-drawing grade (better plasticity than SPCC).