Cold Rolled Steel

Common Quality Complaints? Horizontal creases, rust, dimensional deviations, mechanical defects, edge cracks, inclusions. Acceptance Standards? Accord

Main Applications? Construction: scaffolding, steel structures, factory beams and columns; Machinery: supports, bases, non-transmission components; Tr

Welding performance? Excellent, low carbon content, low carbon equivalent; suitable for arc welding, gas welding, and spot welding; no preheating requ

Common surface defects? Horizontal crease: Caused by bending deformation due to the yield plateau during uncoiling; common in thicknesses of 3–6

Yield Strength (ReH)? Thickness ≤16mm: ≥235MPa; 16–40mm: ≥225MPa; >40mm: ≥215MPa. Tensile Strength (Rm)? 375–500MPa (thickn

What are the common specifications for Q235 steel coils? Hot-rolled: Thickness 1.2–25.4mm, Width 1000/1250/1500mm. Cold-rolled: Thickness 0.5&nd

What is Q235 steel coil? It's a national standard carbon structural steel coil, formerly known as A3 steel. Q = yield strength, 235 = yield streng

Q: Can Q235 be used instead of SPCC? A: Not recommended: Q235 has high strength, poor plasticity, and poor surface finish, making it unsuitable for st

Q: Is SPCC rust-resistant? A: No, it is not rust-resistant. Pure cold-rolled without plating, it will rust within days in a humid environment. Q: How

Q: What processing is SPCC suitable for? A: Bending, shallow punching, punching, cutting, and simple forming. Q: What causes SPCC to crack during stam

Q: What are the different surface finishes of SPCC? A: D = Matte (matte), B = Glossy (bright). Q: What is the common thickness range for SPCC? A: 0.15

Q: What is the tensile strength of SPCC? A: ≥270 MPa (commonly 300–370 MPa). Q: What is the elongation of SPCC? A: ≥34% (thickness 0.25&nd