Is it possible to temper an oil-quenched 4140 steel
Chapter 11, Problem 11.D12(choose chapter or problem)
Is it possible to temper an oil-quenched 4140 steel cylindrical shaft 25 mm (1 in.) in diameter so as to give a minimum yield strength of 950 MPa (140,000 psi) and a minimum ductility of 17%EL? If so, specify a tempering temperature. If this is not possible, then explain why.
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