Title:
低含量のコバルトを有するまたはコバルト不含の硬化マルテンサイト鋼、当該鋼から部品を製造する方法、およびこのようにして得られる部品
Document Type and Number:
Japanese Patent JP5328785
Kind Code:
B2
Abstract:
Steel, characterized in that the composition thereof is, in percentages by weight: C=0.20-0.30% Co=trace levels-1% Cr=2-5% Al=1-2% Mo+W/2=1-4% V=trace levels-0.3% Nb=trace levels-0.1% B=trace levels-30 ppm Ni=11-16% with Ni≧7+3.5 Al Si=trace levels-1.0% Mn=trace levels-2.0% Ca=trace levels-20 ppm rare earths=trace levels-100 ppm if N≰10 ppm, Ti+Zr/2=trace levels-100 ppm with Ti+Zr/2≰10 N if 10 ppm
Inventors:
Jack Montagnon
Application Number:
JP2010515557A
Publication Date:
October 30, 2013
Filing Date:
June 18, 2008
Export Citation:
Assignee:
Aubel and Duval
International Classes:
C22C38/00; C21D1/06; C21D9/28; C22C38/58; C23C8/26; C23C8/32; C21D7/06
Domestic Patent References:
| JP56035750A |
Other References:
S.Erlach、他6名,On the Precipitation Behavior of a Ni and Al Alloyed Martensitic Tool Steel,Mater Sci Technol ,米国,2004年,Vol.2004 No.Vol.1 ,Page.633-641
Attorney, Agent or Firm:
Yasuhiko Murayama
Masatake Shiga
Takashi Watanabe
Shinya Mitsuhiro
Masatake Shiga
Takashi Watanabe
Shinya Mitsuhiro