D638高鉻鑄鐵碳化鎢堆焊條
牌號\化學(xué)成分
C
Mn
Si
Cr
Mo
W
V
Nb
HRC
D608
2.5-4.50
3.0-5.0
3.0-5.0
≥55
D618
≤3.0
15.0-20.0
1.0-2.0
10.0-20.0
≤1.00
≥58
D628
20.0-35.0
4.0-6.0
≤1.00
≥60
D632A
25.0-40.0
≥56
D638
25.0-40.0
≥60
D638Nb
20.0-35.0
4.0-8.50
≥60
D642
≤1.5
22.0-32.0
≥45
D646
≤1.0
22.0-32.0
≥45
D656
≤1.5
≤2.5
26.0-34.0
2.0-3.0
≥45
D658
20.0-35.0
4.0-9.50
2.50-7.50
0.50-2.50
4.0-8.50
≥60
D667
≤8.0
1.0-4.8
25.0-32.0
Ni 3-5
≥48
D678
8.0-10.0
≥50
D687
1.5-3.5
≤3.0
22.0-32.0
B 0.5-2.5
≥58
D698
≤3.0
4.0-6.0
8.5-14.0
≥60
| 牌號\化學(xué)成分 | C | Mn | Si | Cr | Mo | W | V | Nb | HRC |
| D608 | 2.5-4.50 | 3.0-5.0 | 3.0-5.0 | ≥55 | |||||
| D618 | ≤3.0 | 15.0-20.0 | 1.0-2.0 | 10.0-20.0 | ≤1.00 | ≥58 | |||
| D628 | 20.0-35.0 | 4.0-6.0 | ≤1.00 | ≥60 | |||||
| D632A | 25.0-40.0 | ≥56 | |||||||
| D638 | 25.0-40.0 | ≥60 | |||||||
| D638Nb | 20.0-35.0 | 4.0-8.50 | ≥60 | ||||||
| D642 | ≤1.5 | 22.0-32.0 | ≥45 | ||||||
| D646 | ≤1.0 | 22.0-32.0 | ≥45 | ||||||
| D656 | ≤1.5 | ≤2.5 | 26.0-34.0 | 2.0-3.0 | ≥45 | ||||
| D658 | 20.0-35.0 | 4.0-9.50 | 2.50-7.50 | 0.50-2.50 | 4.0-8.50 | ≥60 | |||
| D667 | ≤8.0 | 1.0-4.8 | 25.0-32.0 | Ni 3-5 | ≥48 | ||||
| D678 | 8.0-10.0 | ≥50 | |||||||
| D687 | 1.5-3.5 | ≤3.0 | 22.0-32.0 | B 0.5-2.5 | ≥58 | ||||
| D698 | ≤3.0 | 4.0-6.0 | 8.5-14.0 | ≥60 |
