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公开(公告)号:US20100147247A1
公开(公告)日:2010-06-17
申请号:US12335825
申请日:2008-12-16
申请人: CONG YUE QIAO , Todd Trudeau
发明人: CONG YUE QIAO , Todd Trudeau
CPC分类号: F01L3/02 , C22C38/02 , C22C38/04 , C22C38/44 , F01L2101/00 , F01L2103/00 , F01L2820/01 , Y10T29/49298 , Y10T29/49306
摘要: A superaustenitic stainless steel comprises in weight %, 0.15 to 0.9% C, 0.2 to 1.3% Si, 0 to 0.45% Mn, 32.5 to 37.5% Cr, 13.5 to 17.5% Ni, 3.2 to 5.5% Mo, 0 to 2% Nb, 0 to 0.5% B, 0 to 2% Zr and 30 to 51% Fe. In a preferred embodiment, the superaustenitic stainless steel consists essentially of, in weight %, 0.5 to 0.9% C, 0.2 to 0.5% Si, 0.2 to 0.4% Mn, 33.0 to 35.0% Cr, 15.5 to 17.5% Ni, 4.0 to 4.5% Mo, 0.7 to 0.9% Nb, 0.07 to 0.13% B, 0 to 0.05% Zr and 40 to 46% Fe. The superaustenitic stainless steel is useful for valve seat inserts for internal combustion engines such as diesel or natural gas engines.
摘要翻译: 超辉石型不锈钢以重量%计含有0.15〜0.9%的C,0.2〜1.3%的Si,0〜0.45%的Mn,32.5〜37.5%的Cr,13.5〜17.5%的Ni,3.2〜5.5%的Mo,0〜2%的Nb ,0〜0.5%B,0〜2%Zr,30〜51%Fe。 在优选实施方案中,超辉石型不锈钢基本上由以重量%计,0.5%至0.9%的C,0.2至0.5%的Si,0.2至0.4%的Mn,33.0至35.0%的Cr,15.5至17.5%的Ni,4.0至4.5 %Mo,0.7〜0.9%Nb,0.07〜0.13%B,0〜0.05%Zr和40〜46%Fe。 超级奥氏体不锈钢可用于柴油或天然气发动机等内燃机的阀座插件。