temper brittleness

temper brittleness

[′tem·pər ‚brid·əl·nəs]
(metallurgy)
A brittle state resulting when certain low-alloy steels are slowly cooled in a range of 600-300°C or reheated in this range after quenching from 600°C.
References in periodicals archive ?
In-service pipes exposed to temperatures above 450[degrees]C (850[degrees]F) for an extended period of time often exhibit temper brittleness.