FIELD: metallurgy. SUBSTANCE: method comprises steps of heating rimming or semikilled steel with rate 80 C/s up to 500 C and then with rate 15 C/s up to 660 C, curing at that temperature over 12 s, cooling with rate 15 C/s to 400 C, curing over 40 s, rapidly cooling up to 20 C. EFFECT: enhanced ductility of sheet steel. 1 cl, 1 tbl
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Authors
Dates
1995-07-25—Published
1992-11-16—Filed