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ALL
Alloy rods
Cobalt-Based Bare Rods
Grade
Equivalent to
Chemical composition
Reference Standard
Hardness
Co
Cr
W
C
Si
Ni
Fe
Mn
Mo
Others
HRC
Qd1
Stellite 1
Bal
30
13
2.45
1
≤ 3.0
≤ 3.0
≤ 1.0
≤ 1.0
< 1.0
AWSA5.21/ERCoCr-C
50-58
Qd4
Stellite 4
Bal
31
14
1
1
≤ 3.0
≤ 1.0
≤ 0.5
≤ 0.5
< 1.0
45-50
Qd6
Stellite 6
Bal
29
4.5
1.2
1
≤ 3.0
≤ 3.0
≤ 1.0
≤ 1.0
< 1.0
AWSA5.21/ERCoCr-A
40-46
Qd12
Stellite 12
Bal
30
8.5
1.4
1.3
≤ 3.0
≤ 3.0
≤ 1.0
≤ 1.0
< 1.0
AWSA5.21/ERCoCr-B
44-50
Qd20
Stellite 20
Bal
32
17
2.5
1
≤ 3.0
≤ 3.0
≤ 0.5
≤ 1.0
< 1.0
54-59
Qd21
Stellite 21
Bal
27
0.2
0.2
1
≤ 3.0
≤ 2
≤ 1.0
≤ 5.5
< 1.0
AWSA5.21/ERCoCr-E
20-40
Qd25
Stellite 25
Bal
20
15
0.05
1
10
≤ 2.0
≤ 1.5
≤ 1.0
< 1.0
≤ 24
Qd31
Stellite 31
Bal
26
7.5
0.5
1
10
≤ 3.0
≤ 1.0
≤ 1.0
< 1.0
30-35
Qd190
Stellite 190
Bal
26
14
3.2
1
≤ 1.0
≤ 3.0
≤ 1.0
≤ 1.0
< 1.0
AWSA5.21/ERCoCr-G
54-60
QdT-400
Stellite 400
Bal
8.5
0.08
2.6
1.5
≤ 1.5
≤ 1.0
28
B0.8
50-60
QdT-800
Stellite 800
Bal
18
0.08
3.4
≤ 1.5
≤ 1.5
≤ 1.0
28
B0.8
52-58
QdF
Stellite F
Bal
26
12
1.8
1.2
22
≤ 1.5
≤ 0.5
≤ 1.0
< 1.0
AWSA5.21/ERCoCr-F
40-45
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