Carbon and Low Alloy |
Cast Alloy Designation | 8Q(4140) | UNS Number | J14049 |
| Comparable Wrought Alloy | 4140 | Applicable ASTM Spec | A732/A915 |
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Chemical Composition |
C | 0.35 - 0.45 | Mn | 0.70 -1.00 | Si | .02 - 0.8 | P | 0.04 | S | 0.045 | Cr | 0.80 -1.10 |
| Ni | --- | Mo | 0.15 - 0.25 | Fe | --- | Cu | --- | Other | --- |
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Mechanical Properties |
Tensile (ksi) | 180 | Yield (ksi) | 145 | Elongation (%) | 5 |
| Reduction of area (%) | --- | Hardness (Brinell) | --- |
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Notes |
All single values are maximums unless noted otherwise.
Brinell hardness values and ranges represent typicals for the grade. |
More Info |
Weldable | Yes |
Castability | Good |
Processability | Medium |