RU2007132744A - STEEL Possessing EXCELLENT IMPACT VISCOSITY IN THE ZONE OF THERMAL INFLUENCE OF HEATING IN WELDING - Google Patents

STEEL Possessing EXCELLENT IMPACT VISCOSITY IN THE ZONE OF THERMAL INFLUENCE OF HEATING IN WELDING Download PDF

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RU2007132744A
RU2007132744A RU2007132744/02A RU2007132744A RU2007132744A RU 2007132744 A RU2007132744 A RU 2007132744A RU 2007132744/02 A RU2007132744/02 A RU 2007132744/02A RU 2007132744 A RU2007132744 A RU 2007132744A RU 2007132744 A RU2007132744 A RU 2007132744A
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steel
zone
excellent impact
heating
thermal influence
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RU2007132744/02A
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RU2368692C2 (en
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Рюдзи УЭМОРИ (JP)
Рюдзи УЭМОРИ
Есиюки ВАТАНАБЕ (JP)
Есиюки ВАТАНАБЕ
Казухиро ФУКУНАГА (JP)
Казухиро ФУКУНАГА
Есихиде НАГАИ (JP)
Есихиде НАГАИ
Рикио ТИДЗИИВА (JP)
Рикио ТИДЗИИВА
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Ниппон Стил Корпорейшн (JP)
Ниппон Стил Корпорейшн
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Claims (5)

1. Сталь, обладающая отличной ударной вязкостью в зоне термического влияния нагрева, содержащая, мас.%: С - 0,02-0,06%, Si - 0,05-0,30%, Mn - 1,7-2,7%, P - не более 0,015%, S - не более 0,010%, Ti - 0,005-0,015%, О - 0,0010-0,0045% и N - 0,0020-0,0060%, а остальное - железо и неизбежные примеси, причем количество примесей в смеси ограничивается следующими величинами: Al - не более 0,004%, Nb - не более 0,003% и V - не более 0,030%, и имеющая величину показателя СеН, определяемую по формуле (А) в пределах не более 0,04:1. Steel having excellent toughness in the zone of thermal influence of heating, containing, wt.%: C - 0.02-0.06%, Si - 0.05-0.30%, Mn - 1.7-2, 7%, P - not more than 0.015%, S - not more than 0.010%, Ti - 0.005-0.015%, O - 0.0010-0.0045% and N - 0.0020-0.0060%, and the rest is iron and inevitable impurities, and the amount of impurities in the mixture is limited by the following values: Al - not more than 0.004%, Nb - not more than 0.003% and V - not more than 0.030%, and having a value of CeH value determined by formula (A) in the range of not more than 0.04:
Figure 00000001
Figure 00000001
где С, Si, Mn, Cu, Ni, Nb и V - элементы, входящие в состав стали (мас.%).where C, Si, Mn, Cu, Ni, Nb and V are the elements that make up the steel (wt.%).
2. Сталь по п.1, отличающаяся тем, что СеН находится в пределах не более 0,01.2. Steel according to claim 1, characterized in that CeH is in the range of not more than 0.01. 3. Сталь по п.1 или 2, отличающаяся тем, что дополнительно содержит один или оба из следующих элементов, мас.%: Cu - не более 0,25% и Ni - не более 0,50%.3. Steel according to claim 1 or 2, characterized in that it further comprises one or both of the following elements, wt.%: Cu - not more than 0.25% and Ni - not more than 0.50%. 4. Способ производства стали, обладающей отличной ударной вязкостью в зоне термического влияния нагрева, отличающийся тем, что нагревают сляб из стали, имеющей содержание компонентов и величину показателя СеН согласно п.1 до температуры не более 1100°С с последующей обработкой его путем регулируемого термомеханического процесса.4. A method of manufacturing steel having excellent impact strength in the heat affected zone, characterized in that a slab of steel having a component content and a CeN value of 1 according to claim 1 is heated to a temperature of not more than 1100 ° C., followed by processing it by controlled thermomechanical process. 5. Способ производства стали, обладающей отличной ударной вязкостью в зоне термического влияния нагрева, отличающийся тем, что нагревают сляб из стали, имеющей содержание компонентов и величину показателя СеН согласно п.3, до температуры не более 1100°С с последующей обработкой его путем регулируемого термомеханического процесса. 5. A method for the production of steel having excellent impact strength in the heat affected zone, characterized in that a slab of steel having a component content and a CeN value according to Claim 3 is heated to a temperature of not more than 1100 ° C, followed by its processing by adjustable thermomechanical process.
RU2007132744/02A 2006-12-20 2006-12-20 Steel, allowing perfect impact elasticity in area of thermal influence of heating during welding RU2368692C2 (en)

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