METHOD OF PRODUCTION OF HOT ROLLED SHEET FOR ZINC PLATING Russian patent published in 2009 - IPC C21D8/04 C22C38/40 

FIELD: metallurgy.

SUBSTANCE: there is performed hot rolling of sheet out of steel containing, wt %: 0.09-0.20 of carbon, 0.37-0.54 of manganese, 0.02-0.07 of silicon, 0.02-0.06 of chromium and 0.03-0.09 of nickel with carbon equivalent C_e=0.14-0.28 at temperature of roll finish accepted form ratio: t_rf=A+2460C² _e-1240C_e+140°C, where A=913.7-207.13 [C]-46.6[Mn]+110.54 [Cr]+108.1 [Ni] and temperature of winding accepted on dependence from value of carbon equivalent C_e equal to 680…700°C at C_e≤ 0.19 and 660…680°C at C_e> 0.19.

EFFECT: reduced production costs.

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