BACK
MEDIUM ALLOY AIR HARDENING TYPE COLD WORK TOOL STEELS
CHEMICAL COMPOSITION
AISI (SAE)
C
Mn
V
W
Si
Ni
Cr
Mo
A2
1
--
--
--
--
--
5
1
A3
1.25
--
1
--
--
--
5
1
A4
1
2
--
--
--
--
1
1
A6
0.7
2
--
--
--
--
1
1.25
A7
2.25
--
4.75
1.00*
--
--
5.25
1
A8
0.55
--
--
1.25
--
--
5
1.25
A9
0.5
--
1
--
--
1.5
5
1.4
A10
1.35
1.8
--
--
--
1.8
--
1.5
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