無縫氣瓶用鋼GB12447化學(xué)成分
|
牌號 |
化學(xué)成份（%） | ||||||||
|
C |
Si |
Mn |
P |
S |
Cr |
Ni |
Mo |
Cu | |
|
40Mn2 |
0.37-0.44 |
0.17-0.37 |
1.40-1.80 |
≤0.035 |
≤0.035 |
≤0.30 |
≤0.30 |
|
≤0.20 |
|
40Mn2A |
0.37-0.44 |
0.17-0.37 |
1.40-1.80 |
≤0.025 |
≤0.025 |
≤0.30 |
≤0.30 |
|
≤0.20 |
|
34Mn2V |
0.30-0.37 |
0.17-0.37 |
1.40-1.80 |
≤0.035 |
≤0.035 |
≤0.30 |
≤0.30 |
V 0.07-0.12 Mo 0.15-0.25 |
≤0.20 |
|
30CrMo |
0.26-0.34 |
0.17-0.37 |
0.40-0.70 |
≤0.035 |
≤0.035 |
0.80-1.00 |
≤0.30 |
|
≤0.20 |