METHOD OF LOW-CARBON STEEL SHEETS Russian patent published in 2013 - IPC B21B1/22 B21B1/28 

FIELD: process engineering.

SUBSTANCE: invention relates to metallurgy. Proposed method comprises cold rolling of hot-rolled strips, recrystallisation annealing and planishing with front and rear tensions whereat specific front and rear tension kept in the range that follows: 20-40 N/mm² and 25-60 N/mm², respectively, wile relative reduction in planishing ε_pl is set to: $${\epsilon }_{pl}=0,04+0,087\cdot {\epsilon }_{pl}^2-0,106\cdot {\epsilon }_{pl}$$ where ε_pl is relative reduction in cold rolling that ensures sheet yield.

EFFECT: cold-rolled steel strip of low-carbon steel stabilised aluminium for deep drawing.

1 tbl, 1 ex