D256 |
EDMn-A-16 |
≤1.10 |
11.00-16.00 |
≤1.30 |
— |
— |
— |
余量 |
≤5.00 |
HB ≥170 |
D507 |
EDCr-A1-15 |
≤0.15 |
— |
— |
— |
— |
10.00-16.00 |
余量 |
≤2.50 |
HRC ≥40 |
D507Mo |
EDCr-A2-15 |
≤0.20 |
— |
— |
— |
— |
10.00-16.00 |
余量 |
≤2.50 |
HRC ≥37 |
D516MA |
EDCrMn-A-16 |
≤0.25 |
6.00-8.00 |
≤1.00 |
— |
— |
12.00-14.00 |
余量 |
— |
HRC ≥30 |
D517 |
EDCr-B-15 |
≤0.25 |
— |
— |
— |
— |
10.00-16.00 |
余量 |
≤5.00 |
HRC ≥45 |