Comparative
Properties of Tooling Steels
LISTED
FROM: WORST to BEST
|
Resistance to Wear & Grinding
|
Toughness
|
Red
Wear or
Hot
Hardness
|
|
4140 P.H.
|
CPM REX 86
|
4142 P.H.
|
|
S-5
|
CPM 76
|
O-1
|
|
H-13
|
CPM 15V
|
S-5
|
|
O-1
|
CPM T-15
|
A-6
|
|
A-6
|
CPM 10V
|
A-2
|
|
S-7
|
CPM 9V
|
S-7
|
|
A-2
|
M-42
|
A-8
|
|
A-8
|
CPM M4
|
VERTEX®
|
|
VERTEX®
|
M-2
|
D-2
|
|
D-2
|
D-3
|
H-13
|
|
D-3
|
D-2
|
CPM 1V
|
|
CPM 1V
|
VERTEX®
|
CPM 3V
|
|
CPM 3V
|
O-1
|
CPM 9V
|
|
M-2
|
A-2
|
CPM 10V
|
|
CPM 9V
|
A-8
|
D-3
|
|
CPM 10V
|
CPM 3V
|
M-2
|
|
CPM M4
|
CPM 1V
|
CPM M4
|
|
M-42
|
4142 P.H.
|
M-42
|
|
CPM T-15
|
A-6
|
CPM T-15
|
|
CPM 15V
|
S-7
|
CPM 15V
|
|
CPM REX 76
|
S-5
|
CPM REX 76
|
|
CPM REX 86
|
H-13
|
CPM REX 86
|
| 