Invention Grant
US08097098B2 Martensitic stainless steel composition, method for making a mechanical part from said steel and resulting part
有权
马氏体不锈钢组合物，从所述钢制成机械部件的方法和所得部件
- Patent Title: Martensitic stainless steel composition, method for making a mechanical part from said steel and resulting part
- Patent Title (中): 马氏体不锈钢组合物，从所述钢制成机械部件的方法和所得部件
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Application No.: US11993675Application Date: 2006-06-26
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Publication No.: US08097098B2Publication Date: 2012-01-17
- Inventor: Jacques Montagnon
- Applicant: Jacques Montagnon
- Applicant Address: FR Paris
- Assignee: Aubert & Duval
- Current Assignee: Aubert & Duval
- Current Assignee Address: FR Paris
- Agency: Sughrue Mion, PLLC
- Priority: FR0506591 20050628
- International Application: PCT/FR2006/001472 WO 20060626
- International Announcement: WO2007/003748 WO 20070111
- Main IPC: C22C38/44
- IPC: C22C38/44 ; C22C38/50 ; C21D6/04 ; C21D8/00
Abstract:
The invention concerns martensitic stainless steel, characterized in that its composition in weight percentages is as follows: 9%=Cr=13%; 1.5%=Mo=3%; 8%=Ni=14%; 1%=Al=2%; 0.5%=Ti=1.5% with AI+Ti=2.25%; traces=Co=2%; traces=W=1% with Mo+(W/2)=3%; traces=P=0.02%; traces=S=0.0050%; traces=N=0.0060%; traces=C=0.025%; traces=Cu=0.5%; traces=Mn=3%; traces=Si=0.25%; traces=O=0.0050%; and is such that: Ms (° C.)=1302 42 Cr 63 Ni 30 Mo+20AI-15W-33Mn-28Si-30Cu-13Co+10 Ti=50Cr eq/Ni eq=1.05 with Cr eq (%)=Cr+2Si+Mo+1.5 Ti+5.5 AI+0.6W Ni eq (%)=2Ni+0.5 Mn+3O C+25 N+Co+0.3 Cu. The invention also concerns a method for making a mechanical part using said steel, and the resulting part.
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