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Title:
POWDER FOR SHAPING
Document Type and Number:
WIPO Patent Application WO/2020/110891
Kind Code:
A1
Abstract:
Provided is a powder for shaping that is suitable for use in additional processing for forming a powder into near net shapes and that is capable of producing a high-speed tool steel containing no coarse carbides, even when soaking, which has been necessary for ingot making, is omitted. The powder for shaping has a composition which contains, in terms of mass%, 0.4-0.9% C, up to 1.0% Si, up to 1.0% Mn, 4.0-6.0% Cr, 1.5-6.0% W and/or Mo in terms of 1/2W+Mo (W being up to 3.0%), and 0.5-3.0% V and/or Nb in terms of V+Nb, with the remainder comprising Fe and unavoidable impurities.

Inventors:
SAKAMAKI KOICHI (JP)
FUKUZAWA NORIHIDE (JP)
SAKAMOTO TAKAYUKI (JP)
Application Number:
PCT/JP2019/045591
Publication Date:
June 04, 2020
Filing Date:
November 21, 2019
Export Citation:
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Assignee:
HITACHI METALS LTD (JP)
International Classes:
B22F1/12; B22F3/105; B22F3/16; B33Y70/00; C22C38/00; C22C38/26; C22C38/30
Domestic Patent References:
WO2019220917A12019-11-21
Foreign References:
JP2017507251A2017-03-16
JP2015221933A2015-12-10
JP2019173049A2019-10-10
Other References:
YSS HIGH SPEED TOOL STEELS, HITACHI METALS LTD., March 2018 (2018-03-01), XP055711739, Retrieved from the Internet [retrieved on 20191211]
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