The high dimensional accuracy cold plate is a hot-rolled steel strip of ordinary carbon structural steel, which is further cold-rolled into a steel plate with a thickness of less than 4mm. Due to rolling at room temperature, no scale is produced, therefore, the cold plate has good surface quality and high dimensional accuracy.
Grade | Yield Strength M pa ≤ | Tensile strength M pa ≤ | Elongation (L=80mm,b=20mm)% ≥ Nominal Thickness(mm) | |||
<0.70 | 0.70~<1.01 | 1.0~<1.6 | ≥1.6 | |||
DC01(St12) | 130~260 | 270 | 28 | 30 | 32 | 34 |
DC03(St13) | 120~240 | 270 | 32 | 34 | 35 | 36 |
DC04(St14,St15) | 120~210 | 270 | 36 | 38 | 39 | 40 |
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
Surface:
FB: higher finishing surface: Does not affect the formability and coating, high dimensional accuracy cold plate plating adhesion defects, such as small bubbles, small scratches, small roll, slightly scratched and oxidized color allowed to exist.
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