超深冲用DC06化学成分:
C ≤0.003
Mn ≤0.3
P ≤0.020
S ≤0.02
Al ≥0.015
屈服强度a MPa 110~170
抗拉强度MPa不低于270
断后伸长率不低于41
硬度:
SPPC-1,SPCC-2,SPCC-4,SPCC-8 ,SPCC-S
HRB & HV
1/8硬度8 50~71 95~130
1/4硬度4 65~80 115~150
1/2硬度2 74~89 135~185
硬度1 ≥85 ≥170
退火S 85~110
SPCC化学成分:
C ≤0.10 Si≤0.05 Mn ≤0.50 P≤0.035 S ≤0.025
Q195
C:0.06~0.12 Si:≤0.30 Mn: 0.25~0.50 S:≤0.050 P:≤0.045
Q215
C:0.09~0.15 Si:≤0.30 Mn:0.25~0.55 S:≤0.050(A级),≤0.045(B级) P:≤0.045
Q235A
C:0.14~0.22 Si:≤0.30 Mn: 0.30~0.65 S: ≤0.50 P: ≤0.45