Patent ID: 11891676
Assignee: THYSSENKRUPP STEEL EUROPE AG
Field: Materials, metallurgy (Chemistry)
Classification: CPC C  B | IPC B  C

Claim 4:
5. A shaped sheet metal article, comprising:
A) steel substrate consisting of a steel having 0.1-3% by weight of Mn and up to 0.01% by weight of B; and
B) an aluminium-based coating disposed on at least one side of the steel substrate, wherein the coating has an applied layer weight of 15-30 g/m2 and consists of 1-15% by weight of Si, 15-35% by weight of Fe, 0.1-5% by weight of alkali metals or alkaline earth metals, and further constituents, the contents of which are limited to a total of not more than 2.0% by weight, and aluminium as the balance.