|
C |
Mn |
Si |
S |
P |
Cr |
Ni |
Mo |
Cu |
保证值 |
≤0.080 |
0.50~ 2.50 |
≤1.00 |
≤0.030 |
≤0.040 |
18.0~21.0 |
9.0~ 11.0 |
≤0.750 |
≤0.75 |
例值 |
0.038 |
1.35 |
0.68 |
0.008 |
0.022 |
19.75 |
9.60 |
0.064 |
0.10 |
试验项目 |
Rm (N/mm2) |
A (%) |
保证值 |
≥550 |
≥30 |
例值 |
590 |
45 |