Importance

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Abstract

The present invention is related to a rolled steel sheet suitable for enamelling, said sheet having a carbon profile, defined by a gradient in the C-level from a level C_surface at at least one surface of the sheet, to a level C_bulk in the bulk of the sheet, C_bulk being higher than C_surface, and with:

Cbulk higher than 0 and lower than or equal to 0.08 wt %,Csurface between 0 and 0.015 wt %,Al between 0.012 wt % and 0.07 wt %,Mn between 0.12 wt % and 0.45 wt %,O lower than 0.01 wt %and optionally: Cu between 0.025 wt % and 0.1 wt %,S between 0.008 wt % and 0.04 wt %,Ca between 0.0005 wt % and 0.005 wt %, the balance being Fe and incidental impurities, and wherein the depth where the C-level reaches Cbulk+Csurface)/2, is higher than 75 μm. The invention is equally related to a method for producing said steel sheet.

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First Claim