Invention Grant
- Patent Title: Process for producing steel article
- Patent Title (中): 钢制品生产工艺
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Application No.: US11441085Application Date: 2006-05-26
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Publication No.: US07563333B2Publication Date: 2009-07-21
- Inventor: Odd Sandberg , Lennart Jönson
- Applicant: Odd Sandberg , Lennart Jönson
- Applicant Address: SE Hagfors
- Assignee: Uddeholm Tooling Aktiebolag
- Current Assignee: Uddeholm Tooling Aktiebolag
- Current Assignee Address: SE Hagfors
- Agency: Barnes & Thornburg LLP
- Priority: SE0101438 20010425; SE0101785 20010518
- Main IPC: C21D9/00
- IPC: C21D9/00

Abstract:
The invention concerns an article of a steel which is characterized in that it consists of an alloy which contains in weight-%: 1.2-2.0 C, 0.1-1.5 Si, 0.1-2.0 Mn, max. 0.2 N, max. 0.25 S, 4-8 Cr, 0.5-3.5 (Mo+W/2), 5-8 V, max. 1.0 Nb, balance essentially only iron and unavoidable impurities, and that the steel has a micro-structure obtainable by a manufacturing of the steel which comprises spray forming of an ingot, the micro-structure of which contains 8-15 vol-% carbides of essentially only MC-type where M substantially consists of vanadium, of which carbides at least 80 vol-% have a substantially rounded shape and a size in the longest extension of the carbides amounting to 1-20 μm.
Public/Granted literature
- US20060231172A1 Steel article Public/Granted day:2006-10-19
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