Comparative
Properties of Tooling Steels
LISTED
FROM: WORST to BEST
|
Resistance to Wear & Grinding
|
Toughness
|
Red
Wear or
Hot
Hardness
|
|
4140 P.H.
|
Maxamet®
|
4142 P.H.
|
|
S-5
|
T-15 PM
|
L-6
|
|
H-11
|
D-3
|
0-1
|
|
H-12
|
A-11 PM
|
S-5
|
|
H-13
|
M-2 PM
|
A-6
|
|
H-21
|
D-2
|
A-2
|
|
L-6
|
A-9 PM
|
S-7
|
|
O-1
|
M-42 PM
|
A-8
|
|
H-19
|
M-4 PM
|
H-13
|
|
A-6
|
A-8
|
A-9 PM
|
|
S-7
|
L-6
|
H-12
|
|
A-2
|
O-1
|
D-2
|
|
A-8
|
A-2
|
A-11 PM
|
|
D-2
|
4142 P.H.
|
D-3
|
|
D-3
|
S-5
|
H-11
|
|
M-2 PM
|
A-6
|
H-21
|
|
A-9 PM
|
S-7
|
H-19
|
|
A-11 PM
|
H-11
|
M-2 PM
|
|
M-4 PM
|
H-12
|
M-4 PM
|
|
M-42 PM
|
H-19
|
M-42 PM
|
|
T-15 PM
|
H-21
|
T-15 PM
|
|
Maxamet®
|
H-13
|
Maxamet®
|
| 