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SC 4340 Properties & Composition

General Information

Cast Alloy Designation: 
SC 4340
Alloy family: 
Carbon and Low Alloy
UNS #: 
J24053
ASTM Standard(s): 
A915
Wrought: 
4340

Chemical Composition

C: 
0.38-0.43
Mn: 
0.60-0.90
Cr: 
0.70-0.90
Mo: 
0.20-0.30
Ni: 
1.65-2.00
Fe: 
95.47-96.47
Cu: 
0.00-0.00

Mechanical Properties

Tensile strength (ksi): 
0.00-108.00
Yield strength (ksi): 
68
Elongation (%): 
22
Hardness (Brinell): 
0.00-217.00