FIELD: metallurgy.
SUBSTANCE: controlled cooling of rolled stock is performed from deformation end temperature at the interval of 820-830°C to the temperature of 585-615°C at the speed of not more than 20°C/sec, and drawing is performed at the temperature of Ac1+(10-30)°C with exposure of 2.0-4.0 min/mm of the thickness. For the purpose of production of the above mentioned rolled stock, it is proposed to use steel with vanadium content of not more than 0.15 wt %.
EFFECT: providing required stable level of strength, viscoplastic characteristics and corrosion resistance of rolled stock of various thickness.
2 cl, 2 tbl, 1 ex
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Authors
Dates
2013-04-20—Published
2012-02-17—Filed