表1 不同型号钢板含碳量及用途
钢板型号 |
用途 |
化学成分 |
|||||||
C |
Si |
Mn |
P |
S |
Alt |
Ti |
|||
SPCC |
一般用 |
≤0.12 |
﹣ |
≤0.50 |
≤0.035 |
≤0.025 |
≥0.020 |
﹣ |
|
SPCD |
冲压用 |
≤0.10 |
﹣ |
≤0.45 |
≤0.030 |
≤0.025 |
≥0.020 |
﹣ |
|
SPCE\SPCEN |
深冲用 |
≤0.08 |
﹣ |
≤0.40 |
≤0.025 |
≤0.020 |
≥0.020 |
﹣ |
|
BTC1 |
深冲用 |
≤0.008 |
≤0.05 |
0.1~0.3 |
≤0.020 |
≤0.050 |
≤0.07 |
≤0.20 |
|
BTC3 (搪瓷专用) |
一般用 |
≤0.06 |
≤0.03 |
≤0.12 |
≤0.12 |
≤0.12 |
﹣ |
﹣ |
|
DC01(St12) |
一般用 |
≤0.10 |
﹣ |
≤0.50 |
≤0.035 |
≤0.025 |
≥0.020 |
﹣ |
|
DC03(St13) |
冲压用 |
≤0.08 |
﹣ |
≤0.45 |
≤0.030 |
≤0.025 |
≥0.020 |
﹣ |
|
DC04 (St14,St15) |
深冲用 |
≤0.08 |
﹣ |
≤0.40 |
≤0.025 |
≤0.020 |
≥0.020 |
﹣ |
|
DC05(BSC2) |
特深 冲用 |
≤0.008 |
﹣ |
≤0.30 |
≤0.020 |
≤0.020 |
≥0.015 |
≤0.20 |
|
DC06(St16,St14-T,BSC3) |
超深 冲用 |
≤0.006 |
﹣ |
≤0.30 |
≤0.020 |
≤0.020 |
≥0.015 |
≤0.20 |
|
SPP |
超深 冲用 |
0.003 |
0.008 |
0.33 |
0.011 |
0.013 |
0.008 |
0.001 |
表2 冷轧碳素钢板力学性能
钢板型号 |
屈服强度 Mpa |
抗拉强度 Mpa |
断后伸长率(L0= |
|||
公称厚度mm |
||||||
﹤0.60 |
0.60~﹤1.0 |
1.0~﹤1.6 |
≥1.6 |
|||
SPCC |
﹣ |
≥270 |
≥34 |
≥36 |
≥37 |
≥38 |
SPCD |
﹣ |
≥270 |
≥36 |
≥38 |
≥39 |
≥40 |
SPCE、SPCEN |
≤210 |
≥270 |
≥38 |
≥40 |
≥41 |
≥42 |
表3 搪瓷用冷轧钢板力学性能
钢板型号 |
公称厚度 mm |
屈服强度 Mpa |
抗拉强度 Mpa |
断后伸长率% |
|
L0= b= |
L0= b= |
||||
BTC1 |
全部 |
≤190 |
270~320 |
≥43 |
≥40 |
BTC3 |
﹤0.5 |
≤240 |
275~350 |
≥36 |
﹣ |
0.5~1.0 |
≤230 |
275~350 |
≥38 |
﹣ |
|
≥1.0 |
≤220 |
275~350 |
≥40 |
﹣ |
|
SPP |
|
136~205 |
270~303 |
﹣ |
﹣ |
表4 冷轧低碳钢板力学性能
钢板型号 |
屈服强度 Mpa |
抗拉强度 Mpa |
断后伸长率(L0= |
|||
公称厚度mm |
||||||
﹤0.70 |
0.70~﹤1.0 |
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 |
DC05(BSC2) |
110~190 |
≥260 |
≥38 |
≥39 |
≥40 |
≥41 |
DC06(St16,St14-T,BSC3) |
100~180 |
≥250 |
≥39 |
≥40 |
≥41 |
≥42 |