SPCC Grade cold rolled steel: higher finishing surface: Does not affect the formability and coating, plating adhesion defects, such as small bubbles, small scratches, small roll, slightly scratched and oxidized color allowed to exist.
SPCC Grade cold rolled steel FC: advanced surface finishing: The better side of the steel plate must be further limited to the defect, no obvious visible defects, the other side should meet the FB surface requirements.
Surface Structure Code Average roughness Ra / μm
Pitting surface D 0.6～1.9
Bright surface B ≤0.9

Chemical Composition:

SPCC Grade: C≦0.15; Mn≦0.60; P≦0.100; S≦0.035

SPCC series catalog need to make provision for hardness and surface in advance when ordering.
Hardness:
Heat Treatment Code HRBS HV10
Annealed A – –
Annealed + Finishing S – –
1/8 hard 8 50~71 95~130
1/4 hard 4 65~80 115~150
1/2 hard 2 74~89 135~185

Full hard 1 ≥85 ≥170