Equivalent Grades
American
|
German
|
Japanese
|
China
|
|
(W.Nr)
|
(DIN)
|
(JIS G4403)
|
||
AISI M2
|
1.3343
|
HS6-5-2
|
SKH51
|
W6Mo5Cr4V2
|
AISI M35
|
1.3243
|
HS6-5-2-5
|
SKH55
|
W6Mo5Cr4V2Co5
|
AISI M42
|
1.3247
|
HS2-10-1-8
|
SKH59
|
W2Mo9Cr4VCo8
|
AISI T1
|
1.3355
|
HS18-0-1
|
SKH2
|
W18Cr4V
|
AISI T4
|
1.3255
|
HS18-1-2-5
|
SKH3
|
W18Cr4VCo5
|
AISI T5
|
1.3265
|
HS18-1-2-10
|
SKH4
|
W18Cr4VCo8
|
AISI T42
|
1.3207
|
HS10-4-3-10
|
SKH57
|
–
|
Chemical Composition (%)
AISI |
C
|
Si
|
Mn
|
Cr
|
Mo
|
V
|
W
|
Co
|
Ni
|
M2
|
0.78-0.88
|
0.20-0.40
|
0.20-0.40
|
3.75-4.50
|
4.50-5.50
|
1.60-2.20
|
5.50-6.75
|
||
M35
|
0.85-0.95
|
0.00-0.40
|
0.00-0.40
|
3.75-4.50
|
4.75-5.25
|
1.75-2.15
|
6.00-6.75
|
4.60-5.20
|
0.00-0.40
|
M42
|
1.05-1.15
|
0.15-0.65
|
0.15-0.40
|
3.50-4.25
|
9.00-10.00
|
0.95-1.35
|
1.15-1.85
|
7.75-8.75
|
– |
T1
|
0.65-0.75
|
0.20-0.40
|
0.20-0.40
|
3.75-4.50
|
– |
0.90-1.30
|
17.25-18.75
|
– | – |
T4
|
0.70-0.80
|
0.20-0.40
|
0.20-0.40
|
3.75-4.50
|
0.70-1.00
|
0.80-1.20
|
17.25-18.75
|
4.25-5.75
|
– |
T5
|
0.75-0.85
|
0.20-0.40
|
0.20-0.40
|
3.75-4.50
|
0.70-1.00
|
1.80-2.40
|
17.50-19.00
|
7.00-9.00
|
– |
T42 |
1.25-1.40
|
0.00-0.40
|
0.00-0.40
|
3.75-4.50
|
2.75-3.50
|
2.75-3.25
|
8.50-9.50
|
9.00-10.00
|
0.00-0.40
|