ACI Grades - HW

Nominal Composition
High Temperature Properties Creep Stress PSI, 1% 10,000hrs
 Melting Point deg. F.
Wrought Equivalent
Ni
Cr
C
Mn
Si
Mo
W
Co
Fe
Other
1600F
1800F
2000F
60
12
.55
2.0 max
2.5 max
.50 max
-
-
bal.
-
3000
1400
-
2350
-
Principal Features and Applications:
Has less strength than HT or HU alloy, but greater resistance to carburization and thermal shock up to 2050 deg. F. Used for trays, fixtures, retorts and enameling tools where severe thermal shock is present.