Metal | Chemical Composition | ||
Elbow (%) | Welding joint (%) | Tube (%) | |
Cr | 0.03 | 0.05 | 0.03 |
Mn | 0.79 | 1.19 | 0.92 |
Mo | 0.02 | <0.01 | <0.01 |
Ni | 0.08 | 0.02 | 0.03 |
Si | 0.31 | 0.62 | 0.19 |
C | 0.195 | 0.043 | 0.163 |
S | 0.003 | 0.024 | 0.002 |
P | 0.018 | 0.023 | 0.022 |
Fe | 98.60 | 97.96 | 98.66 |