Sign In | Join Free | My lightneasy.org |
|
The standard steel number of China's GB is 40Cr; chemical composition C: 0.37 ~ 0.44 Si: 0.17 ~ 0.37 Mn: 0.50 ~ 0.80 Cr: 0.80 ~ 1.10 Ni: ≤0.30 P: ≤0.035 S: ≤0.035 Cu: ≤0.030 Mo: ≤0.10 German DIN ...