发明名称 |
TWO-PHASE STAINLESS STEEL, METHOD OF MANUFACTURING THE SAME, AND DIAPHRAGM, PRESSURE SENSOR, AND DIAPHRAGM VALVE USING TWO-PHASE STAINLESS STEEL |
摘要 |
It is an object of the present invention to provide a metal diaphragm capable of achieving a higher strength, excellent corrosion resistance, and a smooth surface condition, and a pressure sensor including the diaphragm. The diaphragm according to the present invention includes a two-phase stainless steel having a composition of 24 to 26 mass % Cr, 2.5 to 3.5 mass % Mo, 5.5 to 7.5 mass % Ni, 0.03 mass % or less C, 0.08 to 0.3 mass % N, and the balance Fe and inevitable impurities, and having a 0.2% proof stress of 1300 MPa or higher. |
申请公布号 |
US2014209220(A1) |
申请公布日期 |
2014.07.31 |
申请号 |
US201414162247 |
申请日期 |
2014.01.23 |
申请人 |
Seiko Instruments Inc. |
发明人 |
OTOMO Takuma;NAITO Keita;SUGAWARA Ryo;KOBAYASHI Tomoo |
分类号 |
G01L19/00;C22C38/44;C22C38/00;C21D9/00 |
主分类号 |
G01L19/00 |
代理机构 |
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代理人 |
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主权项 |
1. A two-phase stainless steel having a composition of 24 to 26 mass % Cr, 2.5 to 3.5 mass % Mo, 5.5 to 7.5 mass % Ni, 0.03 mass % or less C, 0.08 to 0.3 mass % N, and the balance Fe and inevitable impurities, and having a 0.2% proof stress of 1300 MPa or higher. |
地址 |
Chiba-shi JP |