公开(公告)号：US20060091672A1

公开(公告)日：2006-05-04

申请号：US10519672

申请日：2003-07-09

申请人： Ryo Matsuhashi ,  Kazuhiro Suetsugu ,  Hideyuki Miyagawa ,  Toshio Kita ,  Kyota Sogabe ,  Kazuhiro Yoshikawa ,  Akihiro Morimoto ,  Jyunji Sato ,  Kunihiko Shimomura ,  Yoshinori Shimomura ,  Takayasu Nakahama

发明人： Ryo Matsuhashi ,  Kazuhiro Suetsugu ,  Hideyuki Miyagawa ,  Toshio Kita ,  Kyota Sogabe ,  Kazuhiro Yoshikawa ,  Akihiro Morimoto ,  Jyunji Sato ,  Kunihiko Shimomura ,  Yoshinori Shimomura ,  Takayasu Nakahama

IPC分类号： F16L37/00

CPC分类号： F16L19/061 ,  C22C38/001 ,  C22C38/42 ,  C22C38/44 ,  F16L19/08

摘要： A pipe coupling 30 comprises a tubular body 31 for a pipe 32 to be inserted in through the rear end thereof, a front ring 33 and a back ring 34 to be fitted around the pipe 32 projecting from the rear end of the body 31, and a cap nut 35 for tightening up the front and back rings 33, 34 to fix the pipe 32 to the body 31. The back ring 34 is made of an alloy comprising, in % by weight, 0.001 to 0.01% of C, up to 5% of Si, up to 2% of Mn, up to 0.03% of P, up to 100 ppm of S, up to 50 ppm of O, 18 to 25% of Cr, 15 to 25% of Ni, 4.5 to 7.0% of Mo, 0.5 to 3.0% of Cu, 0.1 to 0.3% of N, and the balance substantially Fe and other inevitable impurities.

摘要翻译： 管接头30包括用于管32的管状体31，其通过其后端插入，前环33和后环34围绕从主体31的后端突出的管32配合，以及 用于紧固前后环33,34以将管32固定到主体31的盖螺母35。 后环34由以重量％计含有0.001至0.01％C，至多5％Si，至多2％Mn，至多0.03％P，至多100ppm S ，高达50ppm的O，18〜25％的Cr，15〜25％的Ni，4.5〜7.0％的Mo，0.5〜3.0％的Cu，0.1〜0.3％的N，余量基本上是Fe等 不可避免的杂质。

公开(公告)号：US20060102867A1

公开(公告)日：2006-05-18

申请号：US10519674

申请日：2003-07-09

申请人： Ryo Matsuhashi ,  Kazuhiro Suetsugu ,  Hideyuki Miyagawa ,  Toshio Kita ,  Kyota Sogabe ,  Kazuhiro Yoshikawa ,  Akihiro Morimoto ,  Jyunji Sato ,  Kunihiko Daido ,  Hirokatsu Maeda

发明人： Ryo Matsuhashi ,  Kazuhiro Suetsugu ,  Hideyuki Miyagawa ,  Toshio Kita ,  Kyota Sogabe ,  Kazuhiro Yoshikawa ,  Akihiro Morimoto ,  Jyunji Sato ,  Kunihiko Daido ,  Hirokatsu Maeda

IPC分类号： F16K25/00

CPC分类号： F16K1/385 ,  F16K1/04 ,  F16K1/38 ,  F16K1/482 ,  F16K25/005

摘要： A fluid control device 1 comprises a metal body 2 having a fluid inlet channel 2a, a fluid outlet channel 2b and a communication channel 2c for holding the two channels in communication, and a metal slide member 3 vertically movable in a vertical passage 11 including the communication channel 2c for closing or opening the communication channel 2c with an end portion thereof. At least the end portion 3a of the slide member 3 is made of an alloy comprising, in % by weight, 0.001 to 0.01% of C, up to 5% of Si, up to 2% of Mn, up to 0.03% of P, up to 100 ppm of S, up to 50 ppm of O, 18 to 25% of Cr, 15 to 25% of Ni, 4.5 to 7.0% of Mo, 0.5 to 3.0% of Cu, 0.1 to 0.3% of N, and the balance substantially Fe and other inevitable impurities.

摘要翻译： 流体控制装置1包括具有流体入口通道2a，流体出口通道2b和用于保持两个通道连通的连通通道2c的金属体2以及在垂直通道中垂直移动的金属滑动构件3 包括用于关闭或打开具有其端部的通信信道2c的通信信道2c。 至少滑动构件3的端部3a由合金制成，其以重量％计含有0.001至0.01％的C，至多5％的Si，至多2％的Mn，至多0.03％的 P，高达100ppm的S，高达50ppm的O，18〜25％的Cr，15〜25％的Ni，4.5〜7.0％的Mo，0.5〜3.0％的Cu，0.1〜0.3％的N ，余量基本上为Fe等不可避免的杂质。

公开(公告)号：US20060152001A1

公开(公告)日：2006-07-13

申请号：US10519673

申请日：2003-07-09

申请人： Ryo Matsuhashi ,  Kazuhiro Suetsugu ,  Hideyuki Miyagawa ,  Toshio Kita ,  Kyota Sogabe ,  Kazuhiro Yoshikawa ,  Akihiro Morimoto ,  Jyunji Sato ,  Kunihiko Daido ,  Hisatoshi Akamoto ,  Yoshiki Kimura

发明人： Ryo Matsuhashi ,  Kazuhiro Suetsugu ,  Hideyuki Miyagawa ,  Toshio Kita ,  Kyota Sogabe ,  Kazuhiro Yoshikawa ,  Akihiro Morimoto ,  Jyunji Sato ,  Kunihiko Daido ,  Hisatoshi Akamoto ,  Yoshiki Kimura

IPC分类号： F16L19/06

CPC分类号： C22C38/46 ,  C22C38/001 ,  C22C38/42 ,  C22C38/44 ,  F16J15/102 ,  F16K7/123 ,  F16K27/0236 ,  F16K31/122 ,  F16L19/0218 ,  F16L19/103 ,  F16L58/184

摘要： A specified metal member included among the components of a valve, coupling or like fluid handling part for use in piping and fluid control devices is made of an alloy comprising, in % by weight, 0.001 to 0.01% of C, up to 5% of Si, up to 2% of Mn, up to 0.03% of P, up to 100 ppm of S, up to 50 ppm of O, 18 to 25% of Cr, 15 to 25% of Ni, 4.5 to 7.0% of Mo, 0.5 to 3.0% of Cu, 0.1 to 0.3% of N, and the balance substantially Fe and other inevitable impurities, the alloy having a CRI (crevice corrosion resistance index) value in the range of 40≦CRI≦55, as determined from the expression CRI=[Cr]+4×[Mo]+30×[N] wherein the amount of alloy components present in combination in the alloy to ensure crevice corrosion resistance are expressed in % by weight.

摘要翻译： 包括在用于管道和流体控制装置的阀，联接器或类似流体处理部件的部件中的特定金属构件由合金制成，其包含以重量％计的0.001至0.01％的C，至多5％的 Si，高达2％的Mn，高达0.03％的P，高达100ppm的S，至多50ppm的O，18至25％的Cr，15至25％的Ni，4.5至7.0％的Mo ，0.5〜3.0％的Cu，0.1〜0.3％的N，余量基本上为Fe和其他不可避免的杂质，该合金的CRI（缝隙耐腐蚀指数）值在40 <= CRI <= 55的范围内，为 由CrI = [Cr] + 4x [Mo] + 30x [N]的表达式确定，其中合金中组合存在的合金组分的量确保耐缝隙腐蚀性以重量％表示。

公开(公告)号：US20060102868A1

公开(公告)日：2006-05-18

申请号：US10519675

申请日：2003-07-09

申请人： Ryo Matsuhashi ,  Kazuhiro Suetsugu ,  Hideyuki Miyagawa ,  Toshio Kita ,  Kyota Sogabe ,  Kazuhiro Yoshikawa ,  Akihiro Morimoto ,  Jyunji Sato ,  Kunihiko Daido ,  Masahiko Sogao ,  Yoshiaki Chikaike

发明人： Ryo Matsuhashi ,  Kazuhiro Suetsugu ,  Hideyuki Miyagawa ,  Toshio Kita ,  Kyota Sogabe ,  Kazuhiro Yoshikawa ,  Akihiro Morimoto ,  Jyunji Sato ,  Kunihiko Daido ,  Masahiko Sogao ,  Yoshiaki Chikaike

IPC分类号： F16K25/00

CPC分类号： F16K27/0236 ,  C22C38/001 ,  C22C38/42 ,  C22C38/44 ,  F16K27/00 ,  F16L19/103 ,  F16L58/184

摘要： A specified metal member (e.g., a bolt) 5 included among a plurality of components 2, 3, 4, 5, 6 of a fluid handling part and having a surface exposed on an exterior of the fluid handling part is made of an alloy comprising, in % by weight, 0.001 to 0.01% of C, up to 5% of Si, up to 2% of Mn, up to 0.03% of P, up to 100 ppm of S, up to 50 ppm of O, 18 to 25% of Cr, 15 to 25% of Ni, 4.5 to 7.0% of Mo, 0.5 to 3.0% of Cu, 0.1 to 0.3% of N, and the balance substantially Fe and other inevitable impurities.

摘要翻译： 包括在流体处理部分的多个部件2,3,4,5,6中并且具有暴露在流体处理部分的外部上的表面的特定金属部件（例如，螺栓）5由合金制成，该合金包括 ，以重量％计，C：0.001〜0.01％，Si：5％以下，Mn：0.2％以下，P：0.03以下，S：100ppm以下，O：18〜 25％的Cr，15〜25％的Ni，4.5〜7.0％的Mo，0.5〜3.0％的Cu，0.1〜0.3％的N，余量基本上是Fe和其他不可避免的杂质。

公开(公告)号：US08105447B2

公开(公告)日：2012-01-31

申请号：US12391045

申请日：2009-02-23

申请人： Yuusuke Oikawa ,  Shinji Tsuge ,  Shigeo Fukumoto ,  Kazuhiro Suetsugu ,  Ryo Matsuhashi ,  Hiroshige Inoue

发明人： Yuusuke Oikawa ,  Shinji Tsuge ,  Shigeo Fukumoto ,  Kazuhiro Suetsugu ,  Ryo Matsuhashi ,  Hiroshige Inoue

IPC分类号： C22C38/44 ,  C22C30/00 ,  C22C38/42 ,  C22C38/48 ,  C22C38/50 ,  C22C38/54

CPC分类号： C22C38/001 ,  C22C38/002 ,  C22C38/004 ,  C22C38/02 ,  C22C38/04 ,  C22C38/42 ,  C22C38/44

摘要： An austenitic stainless steel hot-rolled steel material can be provided which has sea-water resistance and strength superior to conventional steel. Low-temperature toughness can be maintained, which is preferable in a structural member of speedy craft. The steel material can include an austenitic stainless steel hot-rolled steel material which excels in the properties of corrosion resistance, proof stress, and low-temperature toughness. In such austenitic stainless steel hot-rolling steel material, e.g., PI [=Cr+3.3(Mo+0.5W)+16N] ranges from 35 to 40, δ cal [=2.9(Cr+0.3Si+Mo+0.5W)−2.6(Ni+0.3Mn+0.25Cu+35C+20N)−18] ranges from −6 to +2, and a 0.2% proof stress at room temperature is not less than 550 MPa, Charpy impact value measured using a V-notch test piece at −40° C. is not less than 100 J/cm2, and the pitting potential measured in a deaerated aqueous solution of 10% NaCl at 50° C. (Vc′100) is not less than 500 mV (as it relates to saturated Ag/AgCl).

摘要翻译： 可以提供具有优于常规钢的耐海水性和强度的奥氏体不锈钢热轧钢材。 可以保持低温韧性，这在快速工艺的结构构件中是优选的。 钢材可以包括耐腐蚀性，耐应力性和低温韧性优异的奥氏体不锈钢热轧钢材。 在这种奥氏体不锈钢热轧钢材中，例如PI [= Cr + 3.3（Mo + 0.5W）+ 16N]为35〜40，δcal[= 2.9（Cr + 0.3Si + Mo + 0.5W） -2.6（Ni + 0.3Mn + 0.25Cu + 35C + 20N）-18]的范围为-6至+2，室温下的0.2％屈服应力不低于550MPa，夏比冲击值使用V- 在-40℃下的切口试验片不小于100J / cm 2，在50℃的10％NaCl的脱气水溶液（Vc'100）中测定的点蚀电位不小于500mV 它涉及饱和Ag / AgCl）。

公开(公告)号：US20100230011A1

公开(公告)日：2010-09-16

申请号：US12391045

申请日：2009-02-23

申请人： Yuusuke Oikawa ,  Shinji Tsuge ,  Shigeo Fukumoto ,  Kazuhiro Suetsugu ,  Ryo Matsuhashi ,  Hiroshige Inoue

发明人： Yuusuke Oikawa ,  Shinji Tsuge ,  Shigeo Fukumoto ,  Kazuhiro Suetsugu ,  Ryo Matsuhashi ,  Hiroshige Inoue

IPC分类号： C22C38/44 ,  C22C38/42 ,  C22C38/46 ,  C22C38/48 ,  C22C38/50 ,  C22C38/54 ,  C22C38/58 ,  C22C30/02

CPC分类号： C22C38/001 ,  C22C38/002 ,  C22C38/004 ,  C22C38/02 ,  C22C38/04 ,  C22C38/42 ,  C22C38/44

摘要： An austenitic stainless steel hot-rolled steel material can be provided which has sea-water resistance and strength superior to conventional steel. Low-temperature toughness can be maintained, which is preferable in a structural member of speedy craft. The steel material can include an austenitic stainless steel hot-rolled steel material which excels in the properties of corrosion resistance, proof stress, and low-temperature toughness. In such austenitic stainless steel hot-rolling steel material, e.g., PI [=Cr+3.3(Mo+0.5W)+16N] ranges from 35 to 40, δ cal [=2.9(Cr+0.3Si+Mo+0.5W)−2.6(Ni+0.3Mn+0.25Cu+35C+20N)−18] ranges from −6 to +2, and a 0.2% proof stress at room temperature is not less than 550 MPa, Charpy impact value measured using a V-notch test piece at −40° C. is not less than 100 J/cm2, and the pitting potential measured in a deaerated aqueous solution of 10% NaCl at 50° C. (Vc'100) is not less than 500 mV (as it relates to saturated Ag/AgCl).

摘要翻译： 可以提供具有优于常规钢的耐海水性和强度的奥氏体不锈钢热轧钢材。 可以保持低温韧性，这在快速工艺的结构构件中是优选的。 钢材可以包括耐腐蚀性，耐应力性和低温韧性优异的奥氏体不锈钢热轧钢材。 在这种奥氏体不锈钢热轧钢材中，例如PI [= Cr + 3.3（Mo + 0.5W）+ 16N]为35〜40，δcal[= 2.9（Cr + 0.3Si + Mo + 0.5W） -2.6（Ni + 0.3Mn + 0.25Cu + 35C + 20N）-18]的范围为-6至+2，室温下的0.2％屈服应力不低于550MPa，夏比冲击值使用V- 在-40℃下的切口试验片不小于100J / cm 2，在50℃的10％NaCl的脱气水溶液（Vc'100）中测定的点蚀电位不小于500mV 它涉及饱和Ag / AgCl）。

公开(公告)号：US08506729B2

公开(公告)日：2013-08-13

申请号：US13349866

申请日：2012-01-13

申请人： Yuusuke Oikawa ,  Shinji Tsuge ,  Shigeo Fukumoto ,  Kazuhiro Suetsugu ,  Ryo Matsuhashi ,  Hiroshige Inoue

发明人： Yuusuke Oikawa ,  Shinji Tsuge ,  Shigeo Fukumoto ,  Kazuhiro Suetsugu ,  Ryo Matsuhashi ,  Hiroshige Inoue

IPC分类号： C22C38/44 ,  C22C30/00 ,  C22C38/42 ,  C22C38/48 ,  C22C38/50 ,  C22C38/54

CPC分类号： C22C38/001 ,  C22C38/002 ,  C22C38/004 ,  C22C38/02 ,  C22C38/04 ,  C22C38/42 ,  C22C38/44

摘要： An austenitic stainless steel hot-rolled steel material can be provided which has sea-water resistance and strength superior to conventional steel. Low-temperature toughness can be maintained, which is preferable in a structural member of speedy craft. The steel material can include an austenitic stainless steel hot-rolled steel material which excels in the properties of corrosion resistance, proof stress, and low-temperature toughness. In such austenitic stainless steel hot-rolling steel material, e.g., PI [=Cr+3.3(Mo+0.5W)+16N] ranges from 35 to 40, δ cal [=2.9 (Cr+0.3Si+Mo+0.5W)−2.6 (Ni+0.3Mn+0.25Cu+35C+20N)−18] ranges from −6 to +2, and a 0.2% proof stress at room temperature is not less than 550 MPa, Charpy impact value measured using a V-notch test piece at −40° C. is not less than 100 J/cm2, and the pitting potential measured in a deaerated aqueous solution of 10% NaCl at 50° C. (Vc′100) is not less than 500 mV (as it relates to saturated Ag/AgCl).

摘要翻译： 可以提供具有优于常规钢的耐海水性和强度的奥氏体不锈钢热轧钢材。 可以保持低温韧性，这在快速工艺的结构构件中是优选的。 钢材可以包括耐腐蚀性，耐应力性和低温韧性优异的奥氏体不锈钢热轧钢材。 在这种奥氏体不锈钢热轧钢材中，例如PI [= Cr + 3.3（Mo + 0.5W）+ 16N]的范围为35至40，δcal[= 2.9（Cr + 0.3Si + Mo + 0.5W） -2.6（Ni + 0.3Mn + 0.25Cu + 35C + 20N）-18]的范围为-6至+2，室温下的0.2％屈服应力不低于550MPa，夏比冲击值使用V- 在-40℃下的切口试验片不小于100J / cm 2，在50℃的10％NaCl的脱气水溶液（Vc'100）中测定的点蚀电位不小于500mV 它涉及饱和Ag / AgCl）。

公开(公告)号：US20120111457A1

公开(公告)日：2012-05-10

申请号：US13349866

申请日：2012-01-13

申请人： Yuusuke Oikawa ,  Shinji Tsuge ,  Shigeo Fukumoto ,  Kazuhiro Suetsugu ,  Ryo Matsuhashi ,  Hiroshige Inoue

发明人： Yuusuke Oikawa ,  Shinji Tsuge ,  Shigeo Fukumoto ,  Kazuhiro Suetsugu ,  Ryo Matsuhashi ,  Hiroshige Inoue

IPC分类号： C21D11/00 ,  C22C38/58 ,  C22C38/44

CPC分类号： C22C38/001 ,  C22C38/002 ,  C22C38/004 ,  C22C38/02 ,  C22C38/04 ,  C22C38/42 ,  C22C38/44

摘要： An austenitic stainless steel hot-rolled steel material can be provided which has seawater resistance and strength superior to conventional steel. Low-temperature toughness can be maintained, which is preferable in a structural member of speedy craft. The steel material can include an austenitic stainless steel hot-rolled steel material which excels in the properties of corrosion resistance, proof stress, and low-temperature toughness. In such austenitic stainless steel hot-rolling steel material, e.g., PI [=Cr+3.3(Mo+0.5W)+16N] ranges from 35 to 40, δ cal [=2.9 (Cr+0.3Si +Mo+0.5W)−2.6 (Ni+0.3Mn+0.25Cu+35C+20N)−18] ranges from −6 to +2, and a 0.2% proof stress at room temperature is not less than 550 MPa, Charpy impact value measured using a V-notch test piece at −40° C. is not less than 100 J/cm2, and the pitting potential measured in a deaerated aqueous solution of 10% NaCl at 50° C. (Vc'100) is not less than 500 mV (as it relates to saturated Ag/AgCl).

摘要翻译： 可以提供具有优于常规钢的耐海水性和强度的奥氏体不锈钢热轧钢材。 可以保持低温韧性，这在快速工艺的结构构件中是优选的。 钢材可以包括耐腐蚀性，耐应力性和低温韧性优异的奥氏体不锈钢热轧钢材。 在这种奥氏体不锈钢热轧钢材中，例如PI [= Cr + 3.3（Mo + 0.5W）+ 16N]为35〜40，δcal[= 2.9（Cr + 0.3Si + Mo + 0.5W） -2.6（Ni + 0.3Mn + 0.25Cu + 35C + 20N）-18]的范围为-6至+2，室温下的0.2％屈服应力不低于550MPa，夏比冲击值使用V- 在-40℃下的切口试验片不小于100J / cm 2，在50℃的10％NaCl的脱气水溶液（Vc'100）中测定的点蚀电位不小于500mV 它涉及饱和Ag / AgCl）。

公开(公告)号：US20060243356A1

公开(公告)日：2006-11-02

申请号：US11343516

申请日：2006-01-30

申请人： Yuusuke Oikawa ,  Shinji Tsuge ,  Shigeo Fukumoto ,  Kazuhiro Suetsugu ,  Ryo Matsuhashi ,  Hiroshige Inoue

发明人： Yuusuke Oikawa ,  Shinji Tsuge ,  Shigeo Fukumoto ,  Kazuhiro Suetsugu ,  Ryo Matsuhashi ,  Hiroshige Inoue

IPC分类号： C22C38/44 ,  C21D8/00

CPC分类号： C22C38/001 ,  C22C38/002 ,  C22C38/004 ,  C22C38/02 ,  C22C38/04 ,  C22C38/42 ,  C22C38/44

摘要： An austenitic stainless steel hot-rolled steel material can be provided which has sea-water resistance and strength superior to conventional steel. Low-temperature toughness can be maintained, which is preferable in a structural member of speedy craft. The steel material can include an austenitic stainless steel hot-rolled steel material which excels in the properties of corrosion resistance, proof stress, and low-temperature toughness. In such austenitic stainless steel hot-rolling steel material, e.g., PI[=Cr+3.3(Mo+0.5W)+16N] ranges from 35 to 40, δ cal [=2.9 (Cr+0.3Si+Mo+0.5W)−2.6 (Ni+0.3Mn+0.25Cu+35C+20N)−18] ranges from −6 to +2, and a 0.2% proof stress at room temperature is not less than 550 MPa, Charpy impact value measured using a V-notch test piece at −40° C. is not less than 100 J/cm2, and the pitting potential measured in a deaerated aqueous solution of 10% NaCl at 50° C. (Vc′100) is not less than 500 mV (as it relates to saturated Ag/AgCl).

摘要翻译： 可以提供具有优于常规钢的耐海水性和强度的奥氏体不锈钢热轧钢材。 可以保持低温韧性，这在快速工艺的结构构件中是优选的。 钢材可以包括耐腐蚀性，耐应力性和低温韧性优异的奥氏体不锈钢热轧钢材。 在这种奥氏体不锈钢热轧钢材中，例如PI [= Cr + 3.3（Mo + 0.5W）+ 16N]的范围为35至40，δcal[= 2.9（Cr + 0.3Si + Mo + 0.5W） -2.6（Ni + 0.3Mn + 0.25Cu + 35C + 20N）-18]的范围为-6至+2，室温下的0.2％屈服应力不低于550MPa，夏比冲击值使用V- 在-40℃下的切口试验片不小于100J / cm 2，在50℃的10％NaCl的脱气水溶液（Vc'100）中测定的点蚀电位不小于500mV 它涉及饱和Ag / AgCl）。

公开(公告)号：US20060243719A1

公开(公告)日：2006-11-02

申请号：US11404413

申请日：2006-04-13

申请人： Hiroshige Inoue ,  Ryuichi Honma ,  Manabu Mizumoto ,  Yuusuke Oikawa ,  Ryo Matsuhashi ,  Shinji Tsuge ,  Shigeo Fukumoto

发明人： Hiroshige Inoue ,  Ryuichi Honma ,  Manabu Mizumoto ,  Yuusuke Oikawa ,  Ryo Matsuhashi ,  Shinji Tsuge ,  Shigeo Fukumoto

IPC分类号： B23K35/22

CPC分类号： B23K35/26

摘要： A welding wire for austenitic stainless steel welding contains, in percent by mass, C: 0.005 through 0.05%, Si: 0.1 through 1.0%, Mn: 1.0 through 3.5%, Cr: 25.0 through 28.0%, Ni: 16.0 through 23.9%, Mo: 1.6 through 3.0%, Cu: 0.1 through 0.5%, Al: 0.001 through 0.02%, and N: more than 0.30 through 0.50%, limiting 0 to 0.03% or less, P to 0.03% or less, and S to 0.005% or less, and having a ratio of a Cr equivalent to Ni equivalent (Cr equivalent/Ni equivalent) within a range between 0.85 and 1.2 and a PI value of 35 or more, the remainder being iron and unavoidable impurities.

摘要翻译： 奥氏体不锈钢焊接用焊丝以质量％计含有C：0.005〜0.05％，Si：0.1〜1.0％，Mn：1.0〜3.5％，Cr：25.0〜28.0％，Ni：16.0〜23.9％ Mo：1.6〜3.0％，Cu：0.1〜0.5％，Al：0.001〜0.02％，N：大于0.30〜0.50％，0〜0.03％以下，P：0.03％以下，S：0.005以下 ％以下，Cr相当于Ni当量（Cr当量/ Ni当量）在0.85〜1.2的范围内，PI值为35以上，剩余部分为铁和不可避免的杂质。