Quench Hardening Or Quenching
Heat treatment requiring austenitization followed by cooling, under conditions such that austenite transforms into martensite. NOTE 1 Quench hardening is often followed by tempering. NOTE 2 Adapted from ISO 4885.
Source: API SPEC 5CRA, Specification for Corrosion Resistant Alloy Seamless Tubes for Use as Casing, Tubing and Coupling Stock, Upstream Segment, First Edition, February 2010 (Errata August 2011). Global Standards