Precision Flatness, Smooth Surface
CNB’s cold rolled steel is produced by reducing hot rolled pickled coil through tandem mills, followed by annealing and temper rolling. The result is a material with outstanding thickness accuracy, surface cleanliness, and formability. Our portfolio spans commercial quality to extra‑deep‑drawing quality, covering all general manufacturing needs from simple brackets to complex automotive panels.

Why Choose Our Cold Rolled Steel?

• Tight Tolerances: Thickness tolerance as low as ±0.01mm for thin gauges; excellent flatness through tension leveling.

• Fine Surface: Suitable for painting, powder coating, electroplating, and lamination. Bright annealed surface has a mirror‑like appearance.

• Formability Spectrum: SPCC/DC01 (bending), SPCD/DC03 (drawing), SPCE/DC04 (deep drawing), DC05/DC06 (extra‑deep drawing for critical parts).

• Uniform Properties: Controlled annealing cycle ensures consistent hardness, grain size, and elongation.

Specifications

• Thickness: 0.18mm – 3.0mm

• Width: 600mm – 1500mm

• Surface Finish: Bright annealed (BA), matte, skin‑passed

• Oiling: Lightly oiled or dry