发明公开
EP1784519A2 EINSATZSTAHL UND VERFAHREN ZUR HERSTELLUNG MIT SCHMELZBEHANDLUNG
审中-公开
EINSATZSTAHL和方法与熔融处理PRODUCING
- 专利标题: EINSATZSTAHL UND VERFAHREN ZUR HERSTELLUNG MIT SCHMELZBEHANDLUNG
- 专利标题(英): Case-hardened steel and method for production thereof by fusion treatment
- 专利标题(中): EINSATZSTAHL和方法与熔融处理PRODUCING
-
申请号: EP05773330.5申请日: 2005-08-26
-
公开(公告)号: EP1784519A2公开(公告)日: 2007-05-16
- 发明人: ROELOFS, Hans , URLAU, Ulrich , KUHNEMUND, Martin
- 申请人: von Moos Stahl AG
- 申请人地址: Emmenweidstrasse 6020 Emmenbrücke CH
- 专利权人: von Moos Stahl AG
- 当前专利权人: von Moos Stahl AG
- 当前专利权人地址: Emmenweidstrasse 6020 Emmenbrücke CH
- 代理机构: Felder, Peter
- 优先权: CH14002004 20040826
- 国际公布: WO2006021123 20060302
- 主分类号: C22C38/12
- IPC分类号: C22C38/12 ; C22C38/60 ; C22C38/00 ; C21C7/076
摘要:
The invention relates to a case hardened steel which comprises, in weight percent, 0.14 to 0.23 % of carbon, 0.2 to 0.4 % of silicon, 0.6 to 1.7 % of manganese, up to 0.035 % of phosphorus, up to 1.5 % of nickel, 0.7 to 1.7 % of chromium, up to 0.5 % of molybdenum, up to 0.04 % of titanium and 0.01 to 0.02 % of nitrogen and other additives conventionally used for steel. The steel also comprises, in weight percent, 0.02 to 0.06 % of niobium, preferably 0.04 to 0.06 % of niobium, and an oxygen content of 40 to 70 ppm and an aluminum content of 100 ppm.
信息查询