STEEL COLD WORK TOOL, ITS USE AND MANUFACTURING

Application IN/PCT/2001/1449/CHE published 2007-09-07, filed 2001-10-19
The invention concerns a steel article, which consists of an alloy having a chemical composition, which contains in weight-%: 1.2 to 2.5 C; 0.8 to 2.0 Si, which partly can be replaced by aluminium, which may exist in an amount of max 1.0 %; 0.1 to 1.5 Mn; 0.5 to 1.5 Cr; 1.2 to 5.0 (V + Nb/2), however max 1.0 Nb; balance iron and impurities in normal amounts, and having a microstructure which contains 4 to 12 volume-% of MC-carbides. The steel article can be used for manufacturing of cold-work tools, particularly pilger rolls for cold rolling of tubes. The invention also relates to a method of manufacturing the article.

Applicant

1)UDDEHOLM TOOLING AKTIEBOLAG
:SE-683 85 HAGFORS, SWEDEN Sweden

Inventor

1)SANDBERG, ODD 2)RYDELL, BO

International Info

Classification: C22C 38/24
Publication Number: WO 00/66801
Application Date: 2000-04-28

Priority Information

9901554-7 Sweden 1999-04-30