METHOD OF PRODUCING LOW-ALLOY K52-K60-GRADE PIPE STEEL

摘要

FIELD: process engineering.;SUBSTANCE: identical mechanical properties are ensured by regulation of setting finishing temperature to 1050±60°C. Note here that finishing start temperature is taken to equal 830÷890°C, rolling end temperature is taken to make 800-840°C, while temperature of sheet cooling end is taken to equal 520÷580°C.;EFFECT: improved physical properties.;2 tbl, 1 ex