Grade Conversion Table

Types
JIS
AISI
DIN
AICHI
DAIDO
HITACHI

NIPPON
KOSHUHA

ASSAB
BOHLER
THYSSEN
Cold work tool steel
SKD11
D2
1.2379
AUD11
DC53
SLD2
SKD11V
XW41
K110
2379
SKS3
O1
1.2510
SKS3
GOA
SGT
KS3
DF2
K460
2510
Hot work tool steel
SKD61
H13
1.2344
AUD61
DHA1
DAC
KDA1
8407
W302
2344
SKT4
L6
1.2714
SKT4A
GFA
DM
KTV
SOMDIE
W500
2714
Flame-hardening steel
-
-
-
SX105V
GO5
HMD5
FH-5
-
-
-
Plastic mold steel
-
P20
1.2311
-
PX4
-
PLASMOLD20
718
W330
2311
-
P20+5
1.2312
-
NAK80
-
-
HOLDAX
M200
2312
Carbon steel
S45C
1045
1.1191
S45C
S45C
S45C
S45C
-
-
CK45
S50C
1050
1.1206
S50C
S50C
S50C
S50C
760
CM50
1730
SCM440
4140
1.7225
SCM440
SCM440
SCM440
SCM440
709
V320
7225
SNCM439
4340
1.6582
SNCM439
SNCM439
SNCM439
SNCM439
705
V155
6582
Low-alloy steel
SCM415
5115
1.7262
SCM415
SCM415
SCM415
SCM415
-
-
-
Spring steel sheet
SK5
W1
1.1625
SK5
SK5
-
-
K100
K980
1545
Mild steel
SS400
-
-
SS400
SS400
SS400
SS400
-
MS
-


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