SHEET STEEL FOR USE AS PACKAGING STEEL AND METHOD FOR PRODUCING PACKAGING STEEL
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United States of America Patent
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Jan 15, 2015
app pub date -
Oct 2, 2012
filing date -
Dec 22, 2011
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Abstract
The invention relates to sheet steel for use as packaging steel, made of a non-alloy or low-alloy and cold-rolled steel having a carbon content of less than 0.1%. According to the invention, in order to use such sheet steel for packaging steel that has good formability and can be produced in a cost-effective way, the sheet steel contains less than 0.4 wt % of manganese, less than 0.04 wt % of silicium, less than 0.1 wt % of aluminum, and less than 0.1 wt % of chromium and is provided with a multi-phase structure, comprising ferrite and at least one of the structure constituents martensite, bainite, and/or residual austenite. The invention further relates to a method for producing such packaging steel from cold-rolled sheet steel.
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