Title:
スチール、該スチールの使用、該スチール製の製品および該スチールの製造方法
Document Type and Number:
Japanese Patent JP4703005
Kind Code:
B2
Abstract:
The invention relates to a steel with a high wear resistance, high hardness and good notched bar impact strength, useful for the manufacture of products, in the use of which at least some of the features are desirable, preferably for the manufacture of tools intended to be used at temperatures up to at least 500 ° C. The steel is produced powder-metallurgically and consists in percent by weight essentially of 0.55-0.65 C, 0.7-1.5 Si, 0.1-1.0 Mn, 3.5-4.5 Cr, 1.5-2.5 Mo, 1.5-2.5 W, 1.2-1.8 V, 0-0.2 Nb, balance iron and impurities in normal amounts. After hardening and tempering the steel contains 1.5-2.5 percent by volume of MC carbides, in which M consists essentially only of vanadium, the carbides being evenly distributed in the steel matrix. The invention also relates to use of the steel, manufacture and products manufactured from the steel.
Inventors:
Vestin, Leif
Application Number:
JP2000579796A
Publication Date:
June 15, 2011
Filing Date:
October 12, 1999
Export Citation:
Assignee:
ERASTEEL KLOSTER AKTIEBOLAG
International Classes:
B22F9/08; B22F3/00; C22C38/00; B22F3/15; B22F3/24; C21D8/00; C22C33/02; C22C38/22; C22C38/24; C22C38/26; C21D1/18; C21D1/84; C21D7/13
Domestic Patent References:
| JP5239602A | ||||
| JP2066139A | ||||
| JP1240636A |
Attorney, Agent or Firm:
Akio Miyazaki
Katsuhiro Ito
Ishibashi Masayuki
Katsuhiro Ito
Ishibashi Masayuki
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