|
牌号 |
GB国标 |
C |
Si |
Mn |
Cr |
W |
Fe |
Co |
堆焊层硬度 |
|
D802 |
EDCoCr-A-03 |
0.7-1.4 |
≤ 2 |
≤ 2 |
25-32 |
8-6 |
≤ 5 |
余量 |
HRC≥45 |
|
D812 |
EDCoCr-B-03 |
1.0-1.7 |
≤ 2 |
≤ 2 |
25-32 |
7-10 |
≤ 5 |
余量 |
HRC≥50 |
|
D822 |
EDCoCr-C-03 |
1.75-3.0 |
≤ 2 |
≤ 2 |
25-33 |
11-19 |
≤ 5 |
余量 |
HRC≥55 |
|
D842 |
EDCoCr-D-03 |
0.2-0.5 |
≤ 2 |
≤ 2 |
23-32 |
≤ 9.5 |
≤ 5 |
余量 |
HRC≥40-45 |
