Mechanical properties:
model | Mechanical behavior | ||||
Tensile strength (MPa) | Yield strength (MPa) | Elongation (%) | Impact energy( J) | Hardness( HBS) | |
45 | ≥600 | ≥355 | ≥16 | ≥39 | ≤197 |
27SiMn | ≥980 | ≥835 | ≥12 | ≥39 | ≤217 |
Chemical composition:
model | Chemical Composition % | |||||||||
C | Si | Mn | P | S | Ni | Cr | Cu | Mo | other | |
45 | 0.42-0.50 | 0.17-0.37 | 0.50-0.80 | ≤0.35 | ≤0.35 | ≤0.25 | ≤0.25 | ≤0.20 | - | - |
27SiMn | 0.24-0.32 | 1.10-1.40 | 1.10-1.40 | ≤0.35 | ≤0.35 | ≤0.25 | ≤0.25 | ≤0.20 | ≤0.15 | - |