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HK40 Alloy Composition & Properties

General Information

Cast Alloy Designation: 
HK40
Alloy family: 
Heat Resistant Stainless Steel
UNS #: 
J94204
ASTM Standard(s): 
A351
Wrought: 
310H

Chemical Composition

C: 
0.35-0.45
Mn: 
0.00-1.50
Cr: 
23.00-27.00
Mo: 
0.00-0.50
Ni: 
19.00-22.00
Fe: 
48.55-57.65
Cu: 
0.00-0.00

Mechanical Properties

Tensile strength (ksi): 
0.00-62.00
Yield strength (ksi): 
35
Elongation (%): 
10
Hardness (Brinell): 
0.00-170.00