an imprecise term used to cover a variety of quenching procedures in which quenching medium is mantained at a prescribed temperature above 70 °С (see: quenching), karastamine keskkonnas temperatuuriga üle 70 oC (vt kiirjahutus/karastus), закалка в среде с температурой больше 70 °С (см. быстрое охлаждение)