采用13% Cr, 4.5% Ni和0.5% Mo合金化的420NiMo型焊丝。 该合金适用于焊接水轮机等各种应用中的类似成分马氏体和马氏体-铁素体钢种。
Typical Tensile Properties
Stress relieved | ||||
Elongation | Stress Relieved Temperature | Stress Relieved Testing Time | Tensile Strength | Yield Strength |
17 % | 600 °C | 2 hr | 1000 MPa | 930 MPa |
22 % | 600 °C | 8 hr | 870 MPa | 770 MPa |
夏比V型缺口冲击性能
Stress relieved | |||
Impact Value | Stress Relieved Testing Temp | Stress Relieved Testing Time | Testing Temperature |
120 J | 600 °C | 2 hr | 0 °C |
120 J | 600 °C | 2 hr | -20 °C |
175 J | 600 °C | 8 hr | 0 °C |
165 J | 600 °C | 8 hr | -20 °C |
焊缝金属分析
Mn | ||||||
Mn | Mo | Cu | C | Si | Ni | Cr |
0.5 % | - | - | - | - | - | - |
Mo | ||||||
Mn | Mo | Cu | C | Si | Ni | Cr |
- | 0.6 % | - | - | - | - | - |
Cu | ||||||
Mn | Mo | Cu | C | Si | Ni | Cr |
- | - | 0.1 % | - | - | - | - |
C | ||||||
Mn | Mo | Cu | C | Si | Ni | Cr |
- | - | - | 0.02 % | - | - | - |
Si | ||||||
Mn | Mo | Cu | C | Si | Ni | Cr |
- | - | - | - | 0.4 % | - | - |
Ni | ||||||
Mn | Mo | Cu | C | Si | Ni | Cr |
- | - | - | - | - | 4.2 % | - |
Cr | ||||||
Mn | Mo | Cu | C | Si | Ni | Cr |
- | - | - | - | - | - | 12.4 % |