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51. 发明申请

US20110030851A1 LOW-CARBON MARTENSITIC CHROMIUM-CONTAINING STEEL 有权
标题翻译：低碳钢马氏体含铬钢
公开(公告)号：US20110030851A1
公开(公告)日：2011-02-10
申请号：US12989084
申请日：2009-04-23
申请人： Katsuhisa Yamauchi , Yasushi Kato , Takumi Ujiro , Takako Yamashita
发明人： Katsuhisa Yamauchi , Yasushi Kato , Takumi Ujiro , Takako Yamashita
IPC分类号： C22C38/24
CPC分类号： C22C38/001 , C22C38/04 , C22C38/46 , C22C38/48 , F16D69/027
摘要： A material for brake discs has temper softening resistance sufficient to maintain a hardness of HRC 31 or more after tempering at 700° C. for one hour. The low-carbon martensitic chromium-containing steel contains 0.02% to 0.10% of carbon and 0.02% to 0.10% of nitrogen, the total content of carbon and nitrogen being 0.08% to 0.16%; 0.5% or less of silicon; 0.1% or less of aluminum; 0.3% to 3.0% of manganese; 10.5% to 13.5% of chromium; 0.05% to 0.60% of niobium and 0.15% to 0.80% of vanadium, the total content of niobium and vanadium being 0.25% to 0.95%; 0.02% to 2.0% of nickel; and 1.5% or less of copper, and has an Fp value (=−230C+5Si−5Mn−6Cu+10Cr−12Ni+32Nb+22V+12Mo+8W+10Ta+40Al−220N) of 80.0 to 96.0, a hardness after quenching of HRC 31 to 40, and a hardness after tempering at 700° C. for one hour of HRC 31 or more.
摘要翻译：用于制动盘的材料具有足以在700℃回火1小时后维持HRC 31以上的硬度的回火软化阻力。低碳马氏体含铬钢含有0.02〜0.10％的碳和0.02〜0.10％的氮，碳和氮的总含量为0.08〜0.16％。 0.5％以下的硅; 0.1％以下铝; 0.3％〜3.0％的锰; 10.5％〜13.5％的铬; 0.05〜0.60％的铌和0.15〜0.80％的钒，铌和钒的总含量为0.25〜0.95％。 0.02％〜2.0％的镍; 和1.5％以下的铜，并且具有80.0〜96.0的Fp值（= -230℃+ 5Si-5Mn-6Cu + 10Cr-12Ni + 32Nb + 22V + 12Mo + 8W + 10Ta + 40Al-220N）将HRC 31淬火至40℃，在700℃回火1小时后的硬度为HRC 31以上。

52. 发明授权

US07572407B2 Martensitic stainless steel sheet and method for making the same 有权
标题翻译：马氏体不锈钢板及其制造方法
公开(公告)号：US07572407B2
公开(公告)日：2009-08-11
申请号：US10328598
申请日：2002-12-23
申请人： Junichiro Hirasawa , Takumi Ujiro , Osamu Furukimi
发明人： Junichiro Hirasawa , Takumi Ujiro , Osamu Furukimi
IPC分类号： C22C38/46 , C22C38/44 , C22C38/48 , C22C38/50 , C22C38/54
CPC分类号： C22C38/44 , C21D8/0205 , C21D8/0226 , C21D8/0236 , C22C38/002 , C22C38/004 , C22C38/06
摘要： A martensitic stainless steel sheet having superior corrosion resistance, toughness at the weld zones, and workability. The composition of the steel sheet is, on a mass basis: less than about 0.02% of carbon; about 1.0% or less of silicon; less than about 1.5% of manganese; about 0.04% or less of phosphorus; about 0.01% or less of sulfur; about 0.1% or less of aluminum; about 1.5% or more and less than about 4.0% of nickel; about 11% or more and less than about 15% of chromium; about 0.5% or more and less than about 2.0% of molybdenum; and less than about 0.02% of nitrogen, the balance being iron and unavoidable impurities, wherein 15.0%≦[Cr]+1.5×[Mo]+1.2×[Ni]≦20.0%; [C]+[N] 3.0%; and 8.0%≦72×[C]+40×[N]+3×[Si]+2×[Mn]+4×[Ni]+[Mo]≦18.0%.
摘要翻译：具有优异的耐腐蚀性，焊接区韧性和可加工性的马氏体不锈钢板。钢板的组成按质量计小于约0.02％的碳; 约1.0％以下的硅; 小于约1.5％的锰; 约0.04％以下的磷; 约0.01％以下的硫; 约0.1％以下的铝; 约1.5％以上且小于约4.0％的镍; 约11％以上且小于约15％的铬; 约0.5％以上且小于约2.0％的钼; 和小于约0.02％的氮，余量为铁和不可避免的杂质，其中15.0％<= [Cr] + 1.5x [Mo] + 1.2x [Ni] <= 20.0％; [C] + [N] <0.030％ [Ni] + 0.5x（[Mn] + [Mo]）+ 30x [C]> 3.0％和8.0％<= 72×[C] + 40×[N] + 3×[Si] + 2x [Mn] + 4x [Ni] + [Mo] = 18.0％。

53. 发明申请

US20090004040A1 Ferritic Stainless Steel Sheet for Raw Material Pipe for Bellows Pipe 有权
标题翻译：铁素体不锈钢用于波纹管管材原料管
公开(公告)号：US20090004040A1
公开(公告)日：2009-01-01
申请号：US11918934
申请日：2006-05-29
申请人： Yasushi Kato , Yoshihiro Ozaki , Osamu Furukimi , Norimasa Hirata , Takumi Ujiro
发明人： Yasushi Kato , Yoshihiro Ozaki , Osamu Furukimi , Norimasa Hirata , Takumi Ujiro
IPC分类号： C22C38/22
CPC分类号： C22C38/004 , B21D15/10 , B21D26/053 , B23K9/0282 , B23K26/262 , B23K31/027 , B23K2101/10 , B23K2103/05 , C21D6/002 , C21D8/0463 , C21D8/105 , C21D9/08 , C21D9/46 , C21D2211/005 , C22C38/002 , C22C38/04 , C22C38/22 , C22C38/26 , C22C38/32 , F28F21/083
摘要： A ferritic stainless steel sheet for forming a raw material pipe for bellows pipe is excellent in formability and high-temperature properties (high-temperature salt corrosion resistance and high-temperature fatigue properties). Specifically, the ferritic stainless steel sheet for forming a raw material pipe for bellows pipe contains 0.015% by mass or less of C, 1.0% by mass or less of Si, 1.0% by mass or less of Mn, 0.04% by mass or less of P, 0.010% by mass or less of S, 11% to 19% by mass of Cr, 0.015% by mass or less of N, 0.15% by mass or less of Al, 1.25% to 2.5% by mass of Mo, 0.3% to 0.7% by mass of Nb, 0.0003% to 0.003% by mass of B, and the balance being Fe and incidental impurities. In the ferritic stainless steel sheet for forming a raw material pipe for bellows pipe, preferably, the average crystal grain diameter D of the steel sheet is 35 μm or less, and alternatively, the surface roughness Ra of the steel sheet is 0.40 μm or less.
摘要翻译：用于形成用于波纹管的原料管的铁素体不锈钢板的成形性和高温性（高温耐盐腐蚀性和高温疲劳性）优异。具体地说，用于形成波纹管用原料管的铁素体系不锈钢板含有C：0.015质量％以下，Si：1.0质量％以下，Mn：1.0质量％以下，0.04质量％以下的P，0.010质量％以下的S，11〜19质量％的Cr，0.015质量％以下的N，0.15质量％以下的Al，1.25质量％〜2.5质量％的Mo， Nb为0.3〜0.7质量％，B为0.0003〜0.003质量％，余量为Fe和附带杂质。在用于形成用于波纹管的原料管的铁素体不锈钢板中，优选钢板的平均晶粒直径D为35μm以下，或者钢板的表面粗糙度Ra为0.40μm以下。

54. 发明授权

US07429302B2 Stainless steel sheet for welded structural components and method for making the same 有权
标题翻译：焊接结构件用不锈钢板及其制造方法
公开(公告)号：US07429302B2
公开(公告)日：2008-09-30
申请号：US10395475
申请日：2003-03-24
申请人： Junichiro Hirasawa , Takumi Ujiro , Osamu Furukimi
发明人： Junichiro Hirasawa , Takumi Ujiro , Osamu Furukimi
IPC分类号： C22C38/40 , C21D8/02
CPC分类号： C22C38/004 , C22C38/001 , C22C38/02 , C22C38/04 , C22C38/44 , Y10T428/12958
摘要： A structural hot-rolled or cold-rolled stainless steel sheet having improved intergranular corrosion resistance and toughness at the welding heat affected zone and further having low strength and high elongation. The composition of the steel sheet contains less than about 0.008 mass percent of C; about 1.0 mass percent or less of Si; about 1.5 mass percent or less of Mn; about 11 to about 15 mass percent of Cr; more than about 1.0 mass percent and about 2.5 mass percent or less of Ni; less than about 0.10 mass percent of Al; about 0.009 mass percent or less of N; about 0.04 mass percent or less of P; about 0.01 mass percent or less of S; and the balance being Fe and incidental impurities. These contents satisfy the expressions: (Cr)+1.2×(Ni)≧15.0; (Ni)+0.5×(Mn)+30×(C)≦3.0; (C)+(N)≦0.015; and (Cr)−(Mn)−1.7×(Ni)−27×(C)−100×(N)≧9.0.
摘要翻译：一种结构热轧或冷轧不锈钢板，其在焊接热影响区具有改善的晶间耐腐蚀性和韧性，并且还具有低强度和高伸长率。钢板的组成含有小于约0.008质量％的C; 约1.0质量％以下的Si; 约1.5质量％以下的Mn; 约11〜约15质量％的Cr; 大于约1.0质量％和约2.5质量％以下的Ni; 小于约0.10质量％的Al; 约0.009质量％以下的N; 约0.04质量％以下的P; 约0.01质量％以下的S; 余量为Fe和杂质。这些含量满足以下表达式：（Cr）+ 1.2×（Ni）> = 15.0; （Ni）+ 0.5x（Mn）+ 30x（C）<= 3.0; （C）+（N）<= 0.015; 和（Cr） - （Mn）-1.7x（Ni）-27x（C）-100x（N）> = 9.0。

55. 发明申请

US20050241737A1 Cr steel for structural use and method for producing the same 审中-公开
标题翻译：结构用Cr钢及其制造方法
公开(公告)号：US20050241737A1
公开(公告)日：2005-11-03
申请号：US10523880
申请日：2003-08-28
申请人： Takumi Ujiro , Hiroki Ota , Osamu Furukimi , Takashi Shiokawa
发明人： Takumi Ujiro , Hiroki Ota , Osamu Furukimi , Takashi Shiokawa
IPC分类号： C22C38/00 , C22C38/18 , C22C38/48
CPC分类号： C22C38/004 , C21D6/002 , C21D8/0278 , C21D2261/00 , C22C38/02 , C22C38/04 , C22C38/18
摘要： To provide structural Cr-containing steel with excellent low-temperature toughness and impact toughness, with low costs as compared with stainless steel, and with sufficient corrosion resistance. Specifically, this is structural Cr-containing steel and a manufacturing method thereof, wherein the Cr-containing steel contains C of 0.002 to 0.02%; N of 0.002 to 0.02%; Si of 0.05 to 1.0%; Mn of 0.05 to 1.0%; P of 0.04% or less; S of 0.02% or less; Al of 0.001 to 0.1%; and Cr of 6.0 to 10.0%, further may contain Cu of 0.1 to 1.0%, further may contain at least one of: Ni of 0.1 to 1.0%; and Mo of 0.1 to 1.0%, and further may contain at least one of: Nb of 0.005 to 0.10%; and V of 0.005 to 0.20%, the balance are formed of Fe and unavoidable impurities, and the Cr-concentration in the surface layer of the steel is equal to or more than the value wherein 1% is subtracted from the Cr-concentration within the steel.
摘要翻译：提供具有优异的低温韧性和冲击韧性的结构含Cr钢，与不锈钢相比成本低，具有足够的耐腐蚀性。具体地说，这是含Cr的结构钢及其制造方法，其中含Cr的钢含有0.002-0.02％的C; N为0.002〜0.02％; Si为0.05〜1.0％; Mn为0.05〜1.0％ P为0.04％以下; S为0.02％以下; Al为0.001〜0.1％; 和6.0〜10.0％的Cr，还可以含有0.1〜1.0％的Cu，还可以含有0.1〜1.0％的Ni中的至少一种。 Mo为0.1〜1.0％，进一步含有Nb：0.005〜0.10％中的至少一种。 V为0.005〜0.20％，余量由Fe和不可避免的杂质形成，钢的表层的Cr浓度等于或大于其中的Cr浓度1％的值钢。

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