AIR HARDENABLE, FORMABLE STEEL

摘要

A process for producing a highly formable steel capable of affording yield strengths upwards of 90,000 psi through air hardening and without need of liquid quenching. The steel preferably contains correlated percentages of chromium and nickel among other elements and should be in the martensitic condition prior to the first heat treating step. It is deemed that the steels are useful for manufacture of automotive bumpers.