ACI Grades - HK
|
Nominal
Composition
|
High
Temperature Properties Creep Stress PSI, 1% 10,000hrs
|
Melting Point deg. F. |
Wrought
Equivalent
|
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Ni
|
Cr
|
C
|
Mn
|
Si
|
Mo
|
W
|
Co
|
Fe
|
Other
|
1600F
|
1800F
|
2000F
|
||
|
20
|
26
|
.4
|
2.0
max
|
2.0
max
|
.50
max
|
-
|
-
|
bal.
|
-
|
6000
|
2500
|
650
|
2550
|
310
|
|
Principal
Features and Applications:
Excellent hot gas corrosion and oxidation resistance up to 2100 deg. F. Good high temperature strength, up to 1900 deg. F. Used for furnace parts, radiant tubes, reformer tubes and furnace rolls. Susceptible to embrittlement from sigma formation. |
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