公开(公告)号：US4140526A

公开(公告)日：1979-02-20

申请号：US849318

申请日：1977-11-07

申请人： Taishi Moroishi ,  Isamu Koizumi ,  Hisao Fujikawa ,  Hirofumi Makiura ,  Yuji Shoji

发明人： Taishi Moroishi ,  Isamu Koizumi ,  Hisao Fujikawa ,  Hirofumi Makiura ,  Yuji Shoji

IPC分类号： C22C38/00 ,  C22C38/28

CPC分类号： C22C38/28

摘要： A ferritic stainless steel having improved weldability and oxidation resistance, consisting essentially of 11.0 - 20.0% by weight of Cr, less than 0.10% by weight of C, less than 1.5% by weight of Si, less than 1.5% by weight of Mn, less than 1.5% by weight of Zr, the ratio of (Zr%)/(C% + N%) being higher than 7, and the balance of Fe, and the nitrogen amount being restricted to less than 0.015% by weight.

摘要翻译： 具有改善的可焊性和抗氧化性的铁素体不锈钢基本上由11.0-20.0重量％的Cr，小于0.10重量％的C，小于1.5重量％的Si，小于1.5重量％的Mn， 小于1.5重量％的Zr，（Zr％）/（C％+ N％）的比率高于7，余量为Fe，氮量限制在小于0.015重量％。

公开(公告)号：US4530720A

公开(公告)日：1985-07-23

申请号：US553875

申请日：1983-11-21

申请人： Taishi Moroishi ,  Hisao Fujikawa ,  Junichiro Murayama ,  Yuji Shoji

发明人： Taishi Moroishi ,  Hisao Fujikawa ,  Junichiro Murayama ,  Yuji Shoji

IPC分类号： C22C38/00 ,  C22C38/40 ,  C22C38/58 ,  C22C38/38

CPC分类号： C22C38/40 ,  C22C38/58 ,  F28F19/06 ,  F28F21/083

摘要： The present invention relates to the austenitic steel having improved resistance to oxidation at the high temperature, comprising not more than 0.10% C, 0.1-5.0% Si, not more than 3% Mn, 7-45% Ni, 15-30% Cr and sulfur content being restricted to not more than 0.003%. According to the present invention, by limiting the sulfur content in the austenitic steel to not more than 0.003%, preferably to not more than 0.0015%, the heat-resisting steel material which can show improved resistance to oxidation under severe conditions including repeated heating to high temperatures and cooling to room temperature is provided.

摘要翻译： 本发明涉及耐高温氧化性能提高的奥氏体钢，其含有不超过0.10％的C，0.1-5.0％的Si，不超过3％的Mn，7-45％的Ni，15-30％的Cr 硫含量限制在0.003％以下。 根据本发明，通过将奥氏体钢中的硫含量限制在不大于0.003％，优选至不多于0.0015％的耐热钢材料，其可以在恶劣条件下显示出提高的抗氧化性，包括重复加热至 提供高温和冷却至室温。