An alloy steel (4340) is to be used in an

An alloy steel (4340) is to be used in an

An alloy steel (4340) is to be used in an application requiring a minimum tensile strength of 1380MPa (200,000psi) and a minimum ductility of 43%RA. Oil quenching followed by tempering is to be used. Briefly describe the tempering heat treatment.

 

 

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