Invention Grant
- Patent Title: Low-nickel austenitic stainless steel and method for producing same
- Patent Title (中): 低镍奥氏体不锈钢及其制造方法
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Application No.: US11868274Application Date: 2007-10-05
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Publication No.: US07767038B2Publication Date: 2010-08-03
- Inventor: Hyunku Kim
- Applicant: Hyunku Kim
- Applicant Address: CN
- Assignee: Qingdao Samkyung Metals Co., Ltd.
- Current Assignee: Qingdao Samkyung Metals Co., Ltd.
- Current Assignee Address: CN
- Agency: McAndrews, Held & Malloy, Ltd.
- Priority: CN200710119205 20070718
- Main IPC: C22C38/02
- IPC: C22C38/02 ; C22C38/08 ; C22C38/18 ; C22C38/38 ; C22C38/42 ; C22C38/58
Abstract:
A low-nickel austenitic stainless steel is provided which comprises by weight: ≦0.08% C, 4.0˜5.0% Mn, 0.7˜1.0% Si, 3.5˜4.5% Ni, 16.0˜18.0% Cr, 3.0˜3.50% Cu, ≦0.045% S, ≦0.030% P, impurity elements in the total amount of ≦0.2%, and Fe as the balance. This low-nickel austenitic stainless steel has decreased nickel content, but retains excellent mechanical properties and corrosion resistance property. Therefore, the cost for producing the stainless steel can be reduced remarkably. The method for producing the low-nickel austenitic stainless steel is also provided.
Public/Granted literature
- US20090022617A1 LOW-NICKEL AUSTENITIC STAINLESS STEEL AND METHOD FOR PRODUCING SAME Public/Granted day:2009-01-22
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