Patent · US Active

Cold-forming steel article

US8298313B2 · kind B2 · utility

0Cited by

7References

20Claims

0Family size

Assignee

Boehler Edelstahl GmbH & Co. KG · AT

Inventors

Gerhard Jesner · Seckau, AT
Devrim Caliskanoglu · Gießen, DE

Key dates

Filing date	Mar 5, 2010
Grant date	Oct 30, 2012
Priority date	—
Expiry date	Apr 27, 2031

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/12056
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

A cold-forming steel article which comprises an alloy that comprises carbon, manganese, silicon, chromium, molybdenum, vanadium, tungsten and optionally, niobium in certain concentrations, as well as up to about 0.4 wt. % of accompanying elements, remainder iron and contaminants. The article is formed by atomization of a melt and hot isostatic pressing of the resultant powder. The article exhibits a hardness of at least about 60 HRC and a toughness in terms of impact strength of higher than about 50 J. This abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.