RU2018107257A - HIGH-STRENGTH MANGANese STEEL CONTAINING ALUMINUM, METHOD FOR PRODUCING SHEET STEEL PRODUCT FROM SPECIFIED STEEL AND SHEET STEEL PRODUCT OBTAINED ACCORDING TO THIS METHOD - Google Patents

HIGH-STRENGTH MANGANese STEEL CONTAINING ALUMINUM, METHOD FOR PRODUCING SHEET STEEL PRODUCT FROM SPECIFIED STEEL AND SHEET STEEL PRODUCT OBTAINED ACCORDING TO THIS METHOD Download PDF

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RU2018107257A
RU2018107257A RU2018107257A RU2018107257A RU2018107257A RU 2018107257 A RU2018107257 A RU 2018107257A RU 2018107257 A RU2018107257 A RU 2018107257A RU 2018107257 A RU2018107257 A RU 2018107257A RU 2018107257 A RU2018107257 A RU 2018107257A
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steel
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Петер ПАЛЬЦЕР
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Зальцгиттер Флахшталь Гмбх
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Claims (70)

1. Высокопрочная марганцевая сталь, содержащая алюминий, и имеющая следующий химический состав, мас.%:1. High strength manganese steel containing aluminum, and having the following chemical composition, wt.%: C: от 0,01 до 0,3C: 0.01 to 0.3 Mn: от 4 до 10Mn: 4 to 10 Al: от 1 до 4 Al: 1 to 4 Si: от 0,01 до 1Si: 0.01 to 1 Cr: от 0,1 до 4Cr: 0.1 to 4 Mo: от 0,02 дo 1Mo: from 0.02 to 1 P: менее 0,1P: less than 0.1 S: менее 0,1S: less than 0.1 N: менее 0,3,N: less than 0.3, при этом остаток - это железо с неизбежными сопутствующими стали элементами, при легировании в качестве опции одним или несколькими из следующих элементов, мас.%:while the remainder is iron with the inevitable elements associated with steel, when alloyed as an option with one or more of the following elements, wt.%: V: от 0,01 до 1V: 0.01 to 1 Nb: от 0,01 до 1 Nb: 0.01 to 1 Ti: от 0,01 до 1Ti: 0.01 to 1 Sn: от 0 до 0,5Sn: 0 to 0.5 Cu: от 0,005 до 3Cu: 0.005 to 3 W: от 0,03 до 3W: 0.03 to 3 Co: от 0,05 до 3Co: 0.05 to 3 Zr: от 0,03 до 0,5 Zr: 0.03 to 0.5 Ca: от 0,0005 до 0,1. Ca: 0.0005 to 0.1. 2. Сталь по п. 1, отличающаяся тем, что сталь содержит, мас.%:2. Steel under item 1, characterized in that the steel contains, wt.%: Si: от 0,01 до 1. Si: 0.01 to 1. 3. Сталь по любому из пп. 1, 2, отличающаяся тем, что сталь содержит, мас.%:3. Steel according to any one of paragraphs. 1, 2, characterized in that the steel contains, wt.%: V: от 0,02 до 1.V: 0.02 to 1. 4. Сталь по любому из пп. 1-3, отличающаяся тем, что сталь содержит, мас.%:4. Steel according to any one of paragraphs. 1-3, characterized in that the steel contains, wt.%: Nb: от 0,02 до 1.Nb: 0.02 to 1. 5. Сталь по любому из пп. 1-4, отличающаяся тем, что сталь содержит, мас.%:5. Steel according to any one of paragraphs. 1-4, characterized in that the steel contains, wt.%: Ti: от 0,02 до 1.Ti: 0.02 to 1. 6. Сталь по любому из пп. 1-5, отличающаяся тем, что сталь содержит, мас.%:6. Steel according to any one of paragraphs. 1-5, characterized in that the steel contains, wt.%: Sn: от 0,005 до 0,5.Sn: 0.005 to 0.5. 7. Сталь по любому из пп. 1-6, отличающаяся тем, что сталь содержит, мас.%:7. Steel according to any one of paragraphs. 1-6, characterized in that the steel contains, wt.%: Cu: от 0,5 до 3.Cu: 0.5 to 3. 8. Сталь по любому из пп. 1-7, отличающаяся тем, что сталь содержит, мас.%:8. Steel according to any one of paragraphs. 1-7, characterized in that the steel contains, wt.%: W: от 0,05 до 3.W: 0.05 to 3. 9. Сталь по любому из пп. 1-8, отличающаяся тем, что сталь содержит, мас.%:9. Steel according to any one of paragraphs. 1-8, characterized in that the steel contains, wt.%: Со: от 0,08 до 3.Co: 0.08 to 3. 10. Сталь по любому из пп. 1-9, отличающаяся тем, что сталь содержит, мас.%:10. Steel according to any one of paragraphs. 1-9, characterized in that the steel contains, wt.%: Zr: от 0,05 до 0,5.Zr: 0.05 to 0.5. 11. Сталь по любому из пп. 1-10, отличающаяся тем, что сталь имеет прочность на разрыв Rm от 800 МПа до 1700 МПа, и удлинение при разрушении А50 от 6% до 45%, предпочтительно от 8% до 45%.11. Steel according to any one of paragraphs. 1-10, characterized in that the steel has a tensile strength Rm from 800 MPa to 1700 MPa, and elongation at break A50 from 6% to 45%, preferably from 8% to 45%. 12. Способ производства плоского стального продукта, в частности, из стали по любому из предшествующих пп. 1-11, содержащий следующие этапы:12. A method of manufacturing a flat steel product, in particular, from steel according to any one of the preceding claims. 1-11, containing the following steps: выплавка стали, содержащей, мас.%:steel smelting containing, wt.%: C: от 0,01 до 0,3C: 0.01 to 0.3 Mn: от 4 до 10Mn: 4 to 10 Al: от 1 до 4 Al: 1 to 4 Si: от 0,01 до 1Si: 0.01 to 1 Cr: от 0,1 до 4Cr: 0.1 to 4 Mo: от 0,02 дo 1Mo: from 0.02 to 1 P: менее 0,1P: less than 0.1 S: менее 0,1S: less than 0.1 N: менее 0,3,N: less than 0.3, при этом остаток - это железо с неизбежными сопутствующими стали элементами, при легировании в качестве опции одним или несколькими из следующих элементов, мас.%:while the remainder is iron with the inevitable elements associated with steel, when alloyed as an option with one or more of the following elements, wt.%: V: от 0,01 до 1V: 0.01 to 1 Nb: от 0,01 до 1 Nb: 0.01 to 1 Ti: от 0,01 до 1Ti: 0.01 to 1 Sn: от 0 до 0,5Sn: 0 to 0.5 Cu: от 0,005 до 3Cu: 0.005 to 3 W: от 0,03 до 3W: 0.03 to 3 Co: от 0,05 до 3Co: 0.05 to 3 Zr: от 0,03 до 0,5 Zr: 0.03 to 0.5 Ca: от 0,0005 до 0,1,Ca: 0.0005 to 0.1, литье стального расплава с получением пред-полосы посредством процесса горизонтального или вертикального литья с приближением к конечным размерам, или литье стального расплава с получением сляба или тонкого сляба посредством процесса горизонтального или вертикального литья сляба или тонкого сляба;casting a steel melt to form a pre-strip by a horizontal or vertical casting process approaching the final dimensions, or casting a steel melt to produce a slab or thin slab by a horizontal or vertical casting process of a slab or thin slab; повторный нагрев сляба или тонкого сляба до 1050-1250˚С и затем горячая прокатка сляба или тонкого сляба с получением горячей полосы или толстой пластины, или повторный нагрев полученной пред-полосы с приближением к конечным размерам, в частности, с толщиной более 3 мм, до 1000-1200˚С и затем горячая прокатка пред-полосы с получением горячей полосы или толстой пластины, или горячая прокатка пред-полосы без повторного нагрева после литья, с получением горячей полосы или толстой пластины с промежуточным нагревом в качестве опции между отдельными проходами прокатки при горячей прокатке;reheating the slab or thin slab to 1050-1250 ° C and then hot rolling the slab or thin slab to obtain a hot strip or thick plate, or reheating the resulting pre-strip closer to the final dimensions, in particular with a thickness of more than 3 mm, up to 1000-1200 ° C and then hot rolling of the pre-strip to obtain a hot strip or thick plate, or hot rolling of the pre-strip without re-heating after casting, to obtain a hot strip or thick plate with intermediate heating as an option between individual rolling strokes during hot rolling; намотка горячей полосы и в качестве опции толстой пластины при температуре намотки между 780˚С и комнатной температурой;winding a hot strip and, as an option, a thick plate at a winding temperature between 780 ° C and room temperature; в качестве опции отжиг горячей полосы или толстой пластины при следующих параметрах: температура отжига 610-780˚С, длительность отжига 1 минута - 48 часов;as an option, annealing a hot strip or a thick plate with the following parameters: annealing temperature 610-780 ° C, annealing duration 1 minute - 48 hours; в качестве опции холодная прокатка горячей полосы или полученной пред-полосы с приближением к конечным размерам, при толщине менее или равной 3 мм с получением холодной полосы;as an option, cold rolling of a hot strip or a pre-strip obtained, approaching the final dimensions, with a thickness of less than or equal to 3 mm to obtain a cold strip; в качестве опции отжиг холодной полосы при следующих параметрах: as an option, annealing a cold strip with the following parameters: температура отжига 610-780˚С, длительность отжига 1 минута - 48 часов. the annealing temperature is 610-780 ° C, the annealing time is 1 minute - 48 hours. 13. Способ по п. 12, отличающийся тем, что сляб проходит горячую прокатку с получением горячей полосы толщиной от 70 мм до 1,5 мм или пред-полоса проходит горячую прокатку с получением горячей полосы толщиной от 8 мм до 1 мм. 13. The method according to p. 12, characterized in that the slab passes hot rolling to obtain a hot strip with a thickness of 70 mm to 1.5 mm or the pre-strip passes hot rolling with a hot strip with a thickness of 8 mm to 1 mm. 14. Плоский стальной продукт, полученный посредством способа по любому из пп. 12, 13, отличающийся тем, что он имеет прочность на разрыв Rm от 800 МПа до 1700 МПа, и удлинение при разрушении А50 плоского стального продукта от 6% до 45%, предпочтительно от 8% до 45%.14. Flat steel product obtained by the method according to any one of paragraphs. 12, 13, characterized in that it has a tensile strength Rm from 800 MPa to 1700 MPa, and elongation at break A50 of a flat steel product from 6% to 45%, preferably from 8% to 45%. 15. Плоский стальной продукт по п. 14, отличающийся тем, что он проходит оцинковку горячим погружением или электролитическим способом, или наносится металлическое, неорганическое или органическое покрытие.15. The flat steel product according to claim 14, characterized in that it is hot dip galvanized or electrolytically galvanized, or a metal, inorganic or organic coating is applied.
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