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1. 发明授权

US06749701B2 Method of inhibiting cold-rolled steel sheet edge cracking, and method of producing the steel sheet 失效
标题翻译：冷轧钢板边缘裂纹的抑制方法，钢板的制造方法
公开(公告)号：US06749701B2
公开(公告)日：2004-06-15
申请号：US10287634
申请日：2002-11-05
申请人： Naoto Hiramatsu , Kouki Tomimura , Seiichi Isozaki
发明人： Naoto Hiramatsu , Kouki Tomimura , Seiichi Isozaki
IPC分类号： C21D8007
CPC分类号： C21D6/004 , C21D8/0205 , C21D8/0436 , C21D8/0468 , C21D2211/008 , C22C38/001 , C22C38/54
摘要： A high-strength, high-toughness martensitic stainless steel sheet has a chemical composition comprising, in mass percent, more than 0.03 to 0.15% of C, 0.2-2.0% of Si, not more than 1.0% of Mn, not more than 0.06% of P, not more than 0.006% of S, 2.0-5.0% of Ni, 14.0-17.0% of Cr, more than 0.03 to 0.10% of N, 0.0010-0.0070% of B, and the balance of Fe and unavoidable impurities and has an A value of not less than −1.8, where A value=30(C+N)−1.5Si+0.5Mn+Ni−1.3Cr+11.8. The suitability of the steel sheet as a gasket material is enhanced by producing it to include not less than 85 vol % of martensite phase and to have a spring bending elastic limit Kb0.1 after application of tensile strain of 0.1% of not less than 700 N/mm2. Edge cracking during cold rolling is inhibited by conducting cold rolling after subjecting the hot-rolled sheet to 600-800° C.×10 hr or less intermediate annealing to impart a steel hardness of not greater than Hv 380.
摘要翻译：高强度，高韧性的马氏体系不锈钢板的化学成分以质量％计含有C：0.03〜0.15％，Si：0.2〜2.0％，Mn：1.0％以下，0.06以下 P的％以下，S：0.006％以下，Ni：2.0〜5.0％，Cr：14.0〜17.0％，N：0.03〜0.10％，B：0.0010〜0.0070％，Fe：不可避免的杂质并且具有不小于-1.8的A值，其中A值= 30（C + N）-1.5Si + 0.5Mn + Ni-1.3Cr + 11.8。钢板作为垫片材料的适用性通过将其制成包括不小于85体积％的马氏体相并且在施加不小于700的0.1％的拉伸应变之后具有弹性弯曲弹性极限Kb0.1来增强 N / mm 2。在将热轧板进行600-800℃×10小时以上的中间退火后，进行冷轧，赋予不高于Hv380的钢硬度，可以抑制冷轧时的边缘裂纹。

2. 发明授权

US09803257B2 High-strength stainless steel pipe 有权
公开(公告)号：US09803257B2
公开(公告)日：2017-10-31
申请号：US13263124
申请日：2009-05-07
申请人： Seiichi Isozaki , Yasutoshi Hideshima , Hiroshi Fujimoto , Satoshi Suzuki
发明人： Seiichi Isozaki , Yasutoshi Hideshima , Hiroshi Fujimoto , Satoshi Suzuki
IPC分类号： C21D9/50 , C21D6/00 , C21D8/10 , C21D9/08 , C21D9/14 , C22C38/02 , C22C38/04 , C22C38/18 , C22C38/40 , C22C38/00 , C22C38/42
CPC分类号： C21D9/50 , C21D6/002 , C21D6/004 , C21D6/008 , C21D8/10 , C21D8/105 , C21D9/08 , C21D9/14 , C21D2211/005 , C21D2211/008 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/18 , C22C38/40 , C22C38/42 , Y02P10/212
摘要： A stainless steel material having compositions which contain on the basis of percent by mass, C from 0.04 to 0.12%, Ni from 0 (including a case of no addition) to 5.0%, Cr from 12.0 to 17.0%, N from 0.0 to 0.10%, Si from 0.2 to 2.0%, Mn at 2.0% or less, Cu from 0.0 to 2.0%, P at 0.06% or less, S at 0.006% or less, with residue being Fe and unavoidable impurities. Further, a parent phase has any one of a single phase structure of ferrite phase or martensite phase and a diploid phase structure of ferrite phase and martensite phase. An end of the base material is melt-welded as a joint to form a pipe. The parent phase is provided with carbide uniformly separated at grain boundaries and within grains, with a dissolved amount of C being 0.03% by mass or less.

3. 发明授权

US06488786B2 High-strength, high-toughness martensitic stainless steel sheet 失效
标题翻译：高强度，高韧性马氏体不锈钢板
公开(公告)号：US06488786B2
公开(公告)日：2002-12-03
申请号：US09759349
申请日：2001-01-16
申请人： Naoto Hiramatsu , Kouki Tomimura , Seiichi Isozaki
发明人： Naoto Hiramatsu , Kouki Tomimura , Seiichi Isozaki
IPC分类号： C22C3832
CPC分类号： C21D6/004 , C21D8/0205 , C21D8/0436 , C21D8/0468 , C21D2211/008 , C22C38/001 , C22C38/54
摘要： A high-strength, high-toughness martensitic stainless steel sheet has a chemical composition comprising, in mass percent, more than 0.03 to 0.15% of C, 0.2-2.0% of Si, not more than 1.0% of Mn, not more than 0.06% of P, not more than 0.006% of S, 2.0-5.0% of Ni, 14.0-17.0% of Cr, more than 0.03 to 0.10% of N, 0.0010-0.0070% of B, and the balance of Fe and unavoidable impurities and has an A value of not less than −1.8, where A value=30(C+N)−1.5Si+0.5Mn+Ni−1.3Cr+11.8. The suitability of the steel sheet as a gasket material is enhanced by producing it to include not less than 85 vol % of martensite phase and to have a spring bending elastic limit Kb0.1 after application of tensile strain of 0.1% of not less than 700 N/mm2. Edge cracking during cold rolling is inhibited by conducting cold rolling after subjecting the hot-rolled sheet to 600-800 ° C.×10 hr or less intermediate annealing to impart a steel hardness of not greater than Hv 380.
摘要翻译：高强度，高韧性的马氏体系不锈钢板的化学成分以质量％计含有C：0.03〜0.15％，Si：0.2〜2.0％，Mn：1.0％以下，0.06以下 P的％以下，S：0.006％以下，Ni：2.0〜5.0％，Cr：14.0〜17.0％，N：0.03〜0.10％，B：0.0010〜0.0070％，Fe：不可避免的杂质并且具有不小于-1.8的A值，其中A值= 30（C + N）-1.5Si + 0.5Mn + Ni-1.3Cr + 11.8。钢板作为垫片材料的适用性通过将其制成包括不小于85体积％的马氏体相并且在施加不小于700的0.1％的拉伸应变之后具有弹性弯曲弹性极限Kb0.1来增强 N / mm2。在将热轧板进行600-800℃×10小时以上的中间退火后，进行冷轧，赋予不高于Hv380的钢硬度，可以抑制冷轧时的边缘裂纹。

4. 发明申请

US20120024430A1 HIGH-STRENGTH STAINLESS STEEL PIPE 有权
标题翻译：高强度不锈钢管
公开(公告)号：US20120024430A1
公开(公告)日：2012-02-02
申请号：US13263124
申请日：2009-05-07
申请人： Seiichi Isozaki , Yasutoshi Hideshima , Hiroshi Fujimoto , Satoshi Suzuki
发明人： Seiichi Isozaki , Yasutoshi Hideshima , Hiroshi Fujimoto , Satoshi Suzuki
IPC分类号： F16L9/02 , C22C38/20 , C22C38/58 , C22C38/38 , C22C38/42 , C22C38/18 , C22C38/34
CPC分类号： C21D9/50 , C21D6/002 , C21D6/004 , C21D6/008 , C21D8/10 , C21D8/105 , C21D9/08 , C21D9/14 , C21D2211/005 , C21D2211/008 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/18 , C22C38/40 , C22C38/42 , Y02P10/212
摘要： A stainless steel material having compositions which contain on the basis of percent by mass, C from 0.04 to 0.12%, Ni from 0 (including a case of no addition) to 5.0%, Cr from 12.0 to 17.0%, N from 0.0 to 0.10%, Si from 0.2 to 2.0%, Mn at 2.0% or less, Cu from 0.0 to 2.0%, P at 0.06% or less, S at 0.006% or less, with residue being Fe and unavoidable impurities. Further, a parent phase has any one of a single phase structure of ferrite phase or martensite phase and a diploid phase structure of ferrite phase and martensite phase. An end of the base material is melt-welded. as a joint to form a pipe. The parent phase is provided with carbide uniformly separated at grain boundaries and within grains, with a dissolved amount of C being 0.03% by mass or less.
摘要翻译：一种不锈钢材料，其组成为以质量％计，C为0.04至0.12％，Ni为0（包括无添加的情况）至5.0％，Cr为12.0至17.0％，N为0.0至0.10 ％，Si为0.2〜2.0％，Mn为2.0％以下，Cu为0.0〜2.0％，P为0.06％以下，S为0.006％以下，余量为Fe和不可避免的杂质。此外，母相具有铁素体相或马氏体相的单相结构和铁素体相和马氏体相的二倍体相结构中的任一种。基材的端部熔融焊接。作为联合形成管道。母相具有在晶界处和晶粒内均匀分离的碳化物，C的溶解量为0.03质量％以下。

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