发明授权
- 专利标题: Low nickel containing chromium-nickel-manganese- copper austenitic stainless steel
- 专利标题(中): 低镍含铬镍锰铜奥氏体不锈钢
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申请号: US11866869申请日: 2007-10-03
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公开(公告)号: US07780908B2公开(公告)日: 2010-08-24
- 发明人: Meng-Hsin Hsieh , Yi-Cheng Wu , Pei-Te Huang , Hao-Shang Liu
- 申请人: Meng-Hsin Hsieh , Yi-Cheng Wu , Pei-Te Huang , Hao-Shang Liu
- 申请人地址: TW Kaohsiung-Hsien
- 专利权人: Yieh United Steel Corp.
- 当前专利权人: Yieh United Steel Corp.
- 当前专利权人地址: TW Kaohsiung-Hsien
- 代理机构: Fox Rothschild, LLP
- 代理商 Robert J. Sacco
- 优先权: TW91124567A 20021023
- 主分类号: C22C38/58
- IPC分类号: C22C38/58
摘要:
An austenitic stainless steel includes (a) 0.03 wt % to 0.12 wt % of C, (b) 0.2 wt % to 1.0 wt % of Si, (c) 8.55 wt % to 10.12 wt % of Mn, (d) 14.0 wt % to 16.0 wt % of Cr, (e) 4.05 wt % to 4.31 wt % of Ni, (f) 0.04 wt % to 0.07 wt % of N, (g) 1.0 wt % to 3.5 wt % of Cu, (h) trace amount of Mo, and the balance being Fe and incidental impurities. The austenitic stainless steel has a δ-ferrite content less than 8.5 and equal to 6.77[(d)+(h)+1.5(b)]−4.85[(e)+30(a)+30(f)+0.5(c)+0.3(g)]−52.75.
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