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1. 发明申请

WO9905335A8 ULTRA-HIGH STRENGTH, WELDABLE STEELS WITH EXCELLENT ULTRA-LOW TEMPERATURE TOUGHNESS 审中-公开
标题翻译：超高强度，优异的超低温韧性焊接钢
公开(公告)号：WO9905335A8
公开(公告)日：1999-05-06
申请号：PCT/US9815921
申请日：1998-07-28
申请人： EXXON PRODUCTION RESEARCH CO , NIPPON STEEL CORP
发明人： TAMEHIRO HIROSHI , ASAHI HITOSHI , HARA TAKUYA , TERADA YOSHIO , LUTON MICHAEL J , KOO JAYOUNG , BANGARU NARASIMHA-RAO V , PETERSEN CLIFFORD W
IPC分类号： C21D1/19 , C21D8/02 , C22C38/00 , C22C38/04 , C22C38/08 , C22C38/12 , C22C38/14 , C22C38/58
CPC分类号： C21D8/0226 , C21D1/19 , C21D2211/002 , C21D2211/008 , C22C38/04 , C22C38/08 , C22C38/12 , C22C38/14
摘要： A steel plate having a tensile strength of at least about 930 MPa (135Ksi), a toughness as measured by Charpy V-notch impact test at -40 DEG C (-40 DEG F) of at least about 120 joules (88 ft-lb), and a microstructure comprising at least about 90 volume percent of a mixture of fine-grained lower bainite and fine-grained lath martensite, wherein at least about 2/3 of said mixture consists of fine-grained lower bainite transformed from unrecrystallized austenite having an average grain size of less than about 10 microns and comprising iron and specified weight percentages of the additives: carbon, silicon, manganese, copper, nickel, niobium, titanium, aluminum, calcium, Rare Earth Metals, and magnesium, is prepared by heating a steel slab to a suitable temperature; reducing the slab to form plate in one or more hot rolling passes (10) in a first temperature range in which austenite recrystallizes; further reducing said plate in one or more hot rolling passes (10) in a second temperature range in which austenite does not recrystallize, quenching (12) said plate to a suitable Quench Stop Temperature (16); and stopping said quenching and allowing said plate to air cool (18) to ambient temperature.
摘要翻译：拉伸强度为至少约930MPa（135Ksi）的钢板，通过在-40℃（-40°F）下的夏比V型缺口冲击试验测得的至少约120焦耳（88英尺磅））和包含至少约90体积％的细粒度下贝氏体和细粒状板条马氏体的混合物的微结构，其中至少约2/3的所述混合物由从未再结晶的奥氏体转变的细晶粒下贝氏体组成，通过加热制备小于约10微米的平均晶粒尺寸并且包含铁和特定重量百分比的添加剂：碳，硅，锰，铜，镍，铌，钛，铝，钙，稀土金属和镁将钢板加热至合适的温度; 在奥氏体重结晶的第一温度范围内，在一个或多个热轧道（10）中将板坯还原成板; 在奥氏体不再结晶的第二温度范围内在一个或多个热轧道（10）中进一步减少所述板，将所述板淬火（12）至合适的淬火停止温度（16）; 并停止所述淬火并使所述板空气冷却（18）至环境温度。

2. 发明专利

CO5031263A1 ACERO DE ALTA RESISTENCIA DE TENSION Y METODO PARA FABRICARLO 未知
公开(公告)号：CO5031263A1
公开(公告)日：2001-04-27
申请号：CO98010502
申请日：1998-02-26
申请人： EXXON PRODUCTION RESEARCH CO
发明人： KAZUKI FUJIWARA , SHUJI OKAGUCHI , MASAHIKO HAMADA , YU-ICHI KOMIZO , NARASIMHA-RA V BANGARU , JAYOUNG KOO , LUTON MICHAEL J , CLIFFORD W PERTESEN
IPC分类号： C21D8/02 , C22C38/00 , C22C38/02 , C22C38/04 , C22C38/08 , C22C38/12 , C22C38/14 , C22C38/16 , C22C38/18 , C22C38/42 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/50 , C22C38/58
摘要： Un acero que tiene una resistencia de tensión de al menos900 MPa (130 x 103 lbs./pulg.2 ), en el cual dicho acero se produce a partir de una plancha de acero recalentada que comprende hierro y los siguientes aditivos en los porcentajes por peso indicados:C: 0.02% a 0.1%;Si: 0% A 0.6%;Mn: 0.2% a 2.5%; Ni: 0.2% a 1.2%;Nb: 0.01% a 0.1%;Ti: 0.005% a 0.03%;Al: 0% a 0.1%;N: 0.001% a 0.006%;Cu: 0% a 0.6%;Cr: 0% a 0.8%;Mo: 0% a 0.6%;V: 0% a 0.1%;B: 0% a 0.0025%; yCa: 0% a 0.006% yotras impurezas que incluyen P: no superior a 0.015%; y S: no superior a 0.003%; yen el cual dicho acero tiene un valor Vs, definido por medio de la ecuación {1} a continuación, entre 0.15 y 0.42, y además tiene un tamaño de carburo inferior a 5 micras:{1}: Vs=C+(Mn/5) + 5P - (Ni/10)-(Mo/15)+(Cu/10) en la cual cada símbolo atómico representa su contenido en porcentaje por peso.

3. 发明专利

AU1113301A High-tensile-strength steel and method of manufacturing the same 未知
公开(公告)号：AU1113301A
公开(公告)日：2001-03-22
申请号：AU1113301
申请日：2001-01-10
申请人： EXXON PRODUCTION RESEARCH CO , SUMITOMO METAL IND
发明人： KOO JAYOUNG , BANGARU NARASIMHA-RAO , LUTON MICHAEL J , PETERSEN CLIFFORD W , FUJIWARA KAZUKI , OKAGUCHI SHUJI , HAMADA MASAHIKO , KOMIZO YU-ICHI
IPC分类号： C21D8/02 , C22C38/58

4. 发明专利

BR9807805A 未知
公开(公告)号：BR9807805A
公开(公告)日：2000-02-22
申请号：BR9807805
申请日：1998-02-26
申请人： EXXON PRODUCTION RESEARCH CO , SUMITOMO METAL IND
发明人： KOO JAYOUNG , BANGARU NARASIMHA-RAO V , LUTON MICHAEL J , PETERSEN CLIFFORD W , FUJIWARA KAZUKI , OKAGUCHI SUSHI
IPC分类号： C21D8/02 , C22C38/00 , C22C38/02 , C22C38/04 , C22C38/08 , C22C38/12 , C22C38/14 , C22C38/16 , C22C38/18 , C22C38/42 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/50 , C22C38/58
摘要： A high-tensile-strength steel having excellent toughness throughout its thickness, excellent properties at welded joints, and a tensile strength (TS) of at least about 900 MPa (130 ksi), and a method for making such steel, are provided. Steels according to this invention preferably have the following composition based on % by weight: carbon (C): 0.02% to 0.1%; silicon (Si): not greater than 0.6%; manganese (Mn): 0.2% to 2.5%; nickel (Ni): 0.2% to 1.2%; niobium (Nb): 0.01% to 0.1%; titanium (Ti): 0.005% to 0.03%; aluminum (Al): not greater than 0.1%; nitrogen (N): 0.001% to 0.006%; copper (Cu): 0% to 0.6%; chromium (Cr): 0% to 0.8%; molybdenum (Mo): 0% to 0.6%; vanadium (V): 0% to 0.1%; boron (B): 0% to 0.0025%; and calcium (Ca): 0% to 0.006%. The value of Vs as defined by Vs=C+(Mn/5)+5P-(Ni/10)-(Mo/15)+(Cu/10) is 0.15 to 0.42. P and S among impurities are contained in an amount of not greater than 0.015% and not greater than 0.003%, respectively. The carbide size in the steel is not greater than 5 microns in the longitudinal direction.

5. 发明专利

AU726316B2 High-tensile-strength steel and method of manufacturing the same 未知
公开(公告)号：AU726316B2
公开(公告)日：2000-11-02
申请号：AU6656698
申请日：1998-02-26
申请人： EXXON PRODUCTION RESEARCH CO , SUMITOMO METAL IND
发明人： KOO JAYOUNG , BANGARU NARASIMHA-RAO V , LUTON MICHAEL J , PETERSEN CLIFFORD W , FUJIWARA KAZUKI , OKAGUCHI SHUJI , HAMADA MASAHIKO , KOMIZO YU-ICHI
IPC分类号： C21D8/02 , C22C38/00 , C22C38/02 , C22C38/04 , C22C38/08 , C22C38/12 , C22C38/14 , C22C38/16 , C22C38/18 , C22C38/42 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/50 , C22C38/58
摘要： A high-tensile-strength steel having excellent toughness throughout its thickness, excellent properties at welded joints, and a tensile strength (TS) of at least about 900 MPa (130 ksi), and a method for making such steel, are provided. Steels according to this invention preferably have the following composition based on % by weight: carbon (C): 0.02% to 0.1%; silicon (Si): not greater than 0.6%; manganese (Mn): 0.2% to 2.5%; nickel (Ni): 0.2% to 1.2%; niobium (Nb): 0.01% to 0.1%; titanium (Ti): 0.005% to 0.03%; aluminum (Al): not greater than 0.1%; nitrogen (N): 0.001% to 0.006%; copper (Cu): 0% to 0.6%; chromium (Cr): 0% to 0.8%; molybdenum (Mo): 0% to 0.6%; vanadium (V): 0% to 0.1%; boron (B): 0% to 0.0025%; and calcium (Ca): 0% to 0.006%. The value of Vs as defined by Vs=C+(Mn/5)+5P-(Ni/10)-(Mo/15)+(Cu/10) is 0.15 to 0.42. P and S among impurities are contained in an amount of not greater than 0.015% and not greater than 0.003%, respectively. The carbide size in the steel is not greater than 5 microns in the longitudinal direction.

6. 发明专利

CA2280923C HIGH-TENSILE-STRENGTH STEEL AND METHOD OF MANUFACTURING THE SAME 未知
公开(公告)号：CA2280923C
公开(公告)日：2007-03-20
申请号：CA2280923
申请日：1998-02-26
申请人： EXXON PRODUCTION RESEARCH CO , SUMITOMO METAL IND
发明人： BANGARU NARASIMHA-RAO , PETERSEN CLIFFORD W , HAMADA MASAHIKO , LUTON MICHAEL J , KOMIZO YU-ICHI , OKAGUCHI SHUJI , FUJIWARA KAZUKI , KOO JAYOUNG
IPC分类号： C21D8/02 , C22C38/00 , C22C38/02 , C22C38/04 , C22C38/08 , C22C38/12 , C22C38/14 , C22C38/16 , C22C38/18 , C22C38/42 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/50 , C22C38/58
摘要： A high-tensile-strength steel having excellent toughness throughout its thickness, excellent properties at welding joints, and a tensile strength (TS) of at least about 900 Mpa (130 ksi), and a method for making such steel, are provided. Steels accordin g to this invention preferably having the following composition based on % by weight: carbon (C): 0.02 % to 0.1 % ; silicon (Si): not greater than 0.6 %; manganese (Mn): 0.2 % to less than 1.7 %; nickel (Ni): 0.2 % to 1.2 %; niobium (Nb): 0.01 % to 0.1 %; titanium (Ti): 0.005 % to 0.03 %; aluminum (Al): not greater than 0.1 %; nitrogen (N): 0.001 % to 0.006 %; copper (Cu): 0 % to 0.6 %; chromium (Cr): 0 % to 0.8 %; molybdenum (Mo): 0 % to 0.6 %; vanadium (V): 0 % to 0.1 %; boron (B): 0 % to 0.0025 %; and calcium (Ca): 0 % to 0.006 %. The value of Vs as defined by Vs = C + (Mn/5) + SP - (Ni/10) - (Mo/15) + (Cu/10) is 0.15 to 0.42. P and S among impurities are contained in an amount of not greater than 0.015 % and not greater than 0.003 %, respectively. The carbide size in the steel is not greater than 5 microns in the longitudinal direction.

7. 发明专利

AU742179B2 High-tensile-strength steel and method of manufacturing the same 未知
公开(公告)号：AU742179B2
公开(公告)日：2001-12-20
申请号：AU1113301
申请日：2001-01-10
申请人： EXXON PRODUCTION RESEARCH CO , SUMITOMO METAL IND
发明人： KOO JAYOUNG , BANGARU NARASIMHA-RAO , LUTON MICHAEL J , PETERSEN CLIFFORD W , FUJIWARA KAZUKI , OKAGUCHI SHUJI , HAMADA MASAHIKO , KOMIZO YU-ICHI
IPC分类号： C21D8/02 , C22C38/58

8. 发明专利

AU6656698A High-tensile-strength steel and method of manufacturing the same 未知
公开(公告)号：AU6656698A
公开(公告)日：1998-09-18
申请号：AU6656698
申请日：1998-02-26
申请人： EXXON PRODUCTION RESEARCH CO , SUMITOMO METAL IND
发明人： KOO JA-YOUNG , BANGARU NARASIMHA-RAO V , LUTON MICHAEL J , PETERSEN CLIFFORD W , FUJIWARA KAZUKI , OKAGUCHI SHUJI , HAMADA MASAHIKO , KOMIZO YU-ICHI
IPC分类号： C21D8/02 , C22C38/00 , C22C38/02 , C22C38/04 , C22C38/08 , C22C38/12 , C22C38/14 , C22C38/16 , C22C38/18 , C22C38/42 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/50 , C22C38/58
摘要： A high-tensile-strength steel having excellent toughness throughout its thickness, excellent properties at welded joints, and a tensile strength (TS) of at least about 900 MPa (130 ksi), and a method for making such steel, are provided. Steels according to this invention preferably have the following composition based on % by weight: carbon (C): 0.02% to 0.1%; silicon (Si): not greater than 0.6%; manganese (Mn): 0.2% to 2.5%; nickel (Ni): 0.2% to 1.2%; niobium (Nb): 0.01% to 0.1%; titanium (Ti): 0.005% to 0.03%; aluminum (Al): not greater than 0.1%; nitrogen (N): 0.001% to 0.006%; copper (Cu): 0% to 0.6%; chromium (Cr): 0% to 0.8%; molybdenum (Mo): 0% to 0.6%; vanadium (V): 0% to 0.1%; boron (B): 0% to 0.0025%; and calcium (Ca): 0% to 0.006%. The value of Vs as defined by Vs=C+(Mn/5)+5P-(Ni/10)-(Mo/15)+(Cu/10) is 0.15 to 0.42. P and S among impurities are contained in an amount of not greater than 0.015% and not greater than 0.003%, respectively. The carbide size in the steel is not greater than 5 microns in the longitudinal direction.

9. 发明专利

CA2280923A1 HIGH-TENSILE-STRENGTH STEEL AND METHOD OF MANUFACTURING THE SAME 未知
公开(公告)号：CA2280923A1
公开(公告)日：1998-09-03
申请号：CA2280923
申请日：1998-02-26
申请人： SUMITOMO METAL IND , EXXON PRODUCTION RESEARCH CO
发明人： KOMIZO YU-ICHI , PETERSEN CLIFFORD W , OKAGUCHI SHUJI , LUTON MICHAEL J , HAMADA MASAHIKO , FUJIWARA KAZUKI , BANGARU NARASIMHA-RAO , KOO JAYOUNG
IPC分类号： C21D8/02 , C22C38/00 , C22C38/02 , C22C38/04 , C22C38/08 , C22C38/12 , C22C38/14 , C22C38/16 , C22C38/18 , C22C38/42 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/50 , C22C38/58
摘要： A high-tensile-strength steel having excellent toughness throughout its thickness, excellent properties at welded joints, and a tensile strength (TS) of at least about 900 MPa (130 ksi), and a method for making such steel, are provided. Steels according to this invention preferably have the following composition based on % by weight: carbon (C): 0.02 % to 0.1 %; silicon (Si): not greater than 0.6 %; manganese (Mn): 0.2 % to 2.5 %; nickel (Ni): 0.2 % to 1.2 %; niobium (Nb): 0.01 % to 0.1 %; titanium (Ti): 0.005 % to 0.03 %; aluminum (Al): not greater than 0.1 %; nitrogen (N): 0.001 % to 0.006 %; copper (Cu): 0 % to 0.6 %; chromium (Cr): 0 % to 0.8 %; molybdenum (Mo): 0 % to 0.6 %; vanadium (V): 0 % to 0.1 %; boron (B): 0 % to 0.0025 %; and calcium (Ca): 0 % to 0.006 %. The value of Vs as defined by Vs = C + (Mn/5) + 5P (Ni/10) - (Mo/15) + (Cu/10) is 0.15 to 0.42. P and S among impurities are contained in an amount of not greater than 0.015 % and not greater than 0.003 %, respectively. The carbide size in the steel is not greater than 5 microns in the longitudinal direction.

10. 发明公开

EP1017862A4 METHOD FOR PRODUCING ULTRA-HIGH STRENGTH, WELDABLE STEELS WITH SUPERIOR TOUGHNESS 失效
标题翻译：方法超高强度，具有优良的韧性焊接钢
公开(公告)号：EP1017862A4
公开(公告)日：2004-06-23
申请号：EP98938067
申请日：1998-07-28
申请人： EXXONMOBIL UPSTREAM RES CO , NIPPON STEEL CORP
发明人： LUTON MICHAEL J , KOO JAYOUNG , BANGARU NARASIMHA-RAO V , PETERSEN CLIFFORD W , TAMEHIRO HIROSHI , ASAHI HITOSHI , HARA TAKUYA , SUGIYAMA MASAAKI
IPC分类号： C21D1/19 , C21D6/00 , C21D8/02 , C22C38/00 , C22C38/12 , C22C38/58
CPC分类号： C21D6/005 , C21D1/19 , C21D8/0226 , C21D2211/002 , C21D2211/008
摘要： A method is provided for producing an ultra-high strength steel having a tensile strength of at least about 900 MPa (130 Ksi), a toughness as measured by Charpy V-notch impact test at -40 °C (-40 °F) of at least about 120 joules (90 ft-lbs), and a microstructure comprising predominantly fine-grained lower bainite, fine-grained lath martensite, or mixtures thereof, transformed from substantially unrecrystallized austenite grains and comprising iron and specified weight percentages of the additives: carbon, silicon, manganese, copper, nickel, niobium, vanadium, molybdenum, chromium, titanium, aluminium, calcium, Rare Earth Metals, and magnesium. A steel slab is heated to a suitable temperature; the slab is reduced to form plate in one or more hot rolling passes in a first temperature range in which austenite recrystallizes; said plate is further reduced in one or more hot rolling passes (10) in a second temperature range below said first temperature range and above the temperature at which austenite begins to transform to ferrite during cooling; said plate is quenched (12) to a suitable Quench Stop Temperature (16); and said quenching is stopped and said plate is allowed to air cool (18) to ambient temperature.

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