牌号 |
C |
Mn |
Si |
Cr |
Ni |
Mo |
N |
S |
P |
其他 |
YZD431N |
≤0.1 |
0.5~1.5 |
0.3~0.8 |
12~16 |
2.5~4.5 |
0.3~0.7 |
0.07~0.13 |
≤0.02 |
≤0.02 |
≤3.0 |
YZD431 |
≤0.08 |
0.5~1.5 |
0.4~0.8 |
15~19 |
≤2.0 |
—— |
—— |
≤0.02 |
≤0.02 |
≤3.0 |
试验项目牌号 |
焊丝 |
HRC |
HB |
保证值 |
YD627Mo |
42~48 |
—— |
YD627Nb |
—— |
180~220 |
焊丝直径/mm |
1.6 |
2.0 |
2.4 |
2.8 |
焊接电流/A |
240~280 |
280~320 |
320~360 |
360~400 |