Grade | C(%) | Si(%) | Mn(%) | Cr(%) | Cu(%) | Mo(%) | P(%) | S(%) | Ni(%) |
45# | 0.42-0.50 | 0.17-0.37 | 0.5-0.80 | 0-0.25 | 0-0.25 | 0-0.30 | 0-0.035 | 0-0.035 | 0-0.30 |
60Mn | 0.57-0.65 | 0.17-0.37 | 0.70-1.0 | 0-0.25 | 0-0.25 | 0-0.30 | 0-0.035 | 0-0.035 | 0-0.30 |
65Mn | 0.62-0.70 | 0.17-0.37 | 0.90-1.0 | 0-0.25 | 0-0.25 | 0-0.30 | 0-0.035 | 0-0.035 | 0-0.30 |
ZWD-2 | 0.70-0.80 | 0.17-0.37 | 0.70-0.80 | 0.50-0.60 | 0-0.25 | 0-0.30 | 0-0.035 | 0-0.035 | 0-0.30 |
Grade | Breakage Rate | Hardness(HRC) | Impact Value(J/㎝²) | Drop Times | Metallographic Structure |
45# | <1% | ≥ 45 | ≥ 12 | ≥ 8000 | M+C |
60Mn | <1% | ≥ 55 | ≥ 12 | ≥ 12000 | M+C |
65Mn | <1% | ≥ 58 | ≥ 12 | ≥ 12000 | M+C |
ZWD-2 | <1% | ≥ 60 | ≥ 12 | ≥ 15000 | M+C |
Size(mm) | 20×30 | 25×35 | 30×40 | 35×45 | 40×50 | 45×55 | 50×60 | 55×65 | 60×70 |
Dia. Tolerance(mm) | ±1 | ||||||||
Length Tolerance (mm) | ±2 |