| 发明名称 |
Martenstitic stainless steel with improved machinability |
| 摘要 |
The subject of the invention is a martensitic stainless steel with improved machinability, characterized in that its weight composition is the following: carbon lower than 1.2% silicon lower than or equal to 2% manganese lower than or equal to 2% chromium: 10.5</=Cr</=19% sulphur lower than or equal to 0.55% calcium higher than 32x10-4% oxygen higher than 70x10-4% the ratio of the calcium and oxygen content Ca/O being 0.2</=Ca/O</=0.6, the said steel being subjected to at least one quenching heat treatment to give it a martensitic structure.
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| 申请公布号 |
US5427635(A) |
申请公布日期 |
1995.06.27 |
| 申请号 |
US19940258926 |
申请日期 |
1994.06.13 |
| 申请人 |
UGINE SAVOIE |
发明人 |
BLETTON, OLIVIER;BAYOL, JACQUES;TERRIEN, PASCAL |
| 分类号 |
C22C38/00;C21C7/04;C22C38/18;C22C38/34;C22C38/38;C22C38/58;C22C38/60;(IPC1-7):C22C38/18 |
主分类号 |
C22C38/00 |
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