RU2006131488A - STAINLESS HIGH STRENGTH STEEL - Google Patents

STAINLESS HIGH STRENGTH STEEL Download PDF

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RU2006131488A
RU2006131488A RU2006131488/02A RU2006131488A RU2006131488A RU 2006131488 A RU2006131488 A RU 2006131488A RU 2006131488/02 A RU2006131488/02 A RU 2006131488/02A RU 2006131488 A RU2006131488 A RU 2006131488A RU 2006131488 A RU2006131488 A RU 2006131488A
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Russia
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steel according
range
kgf
niobium
cerium
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RU2006131488/02A
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Russian (ru)
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RU2346074C2 (en
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Анатолий Павлович Шадрин (RU)
Анатолий Павлович Шадрин
дик Сергей Петрович Д (RU)
Сергей Петрович Дядик
Виктор Леонидович Александров (RU)
Виктор Леонидович Александров
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Общество с ограниченной ответственностью "Каури" (RU)
Общество с ограниченной ответственностью "Каури"
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Priority to RU2006131488/02A priority Critical patent/RU2346074C2/en
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Claims (5)

1. Нержавеющая высокопрочная сталь, содержащая железо, углерод, хром, никель и сопутствующие примеси, отличающаяся тем, что она дополнительно содержит один или несколько элементов из группы: медь, титан, алюминий, молибден, ниобий, кобальт, азот, кальций, бор, церий, кремний, марганец при следующем соотношении компонентов, мас.%:1. Stainless high-strength steel containing iron, carbon, chromium, nickel and related impurities, characterized in that it additionally contains one or more elements from the group: copper, titanium, aluminum, molybdenum, niobium, cobalt, nitrogen, calcium, boron, cerium, silicon, manganese in the following ratio of components, wt.%: углерод (С)carbon (C) ≤0,03≤0.03 хром (Cr)chromium (Cr) 8,0÷16,58.0 ÷ 16.5 никель (Ni)nickel (Ni) 4,0÷12,04.0 ÷ 12.0 медь (Cu)copper (Cu) 0,3÷5,00.3 ÷ 5.0 титан (Ti)titanium (Ti) 0,01÷1,00.01 ÷ 1.0 алюминий (Al)aluminum (Al) 0,01÷0,60.01 ÷ 0.6 молибден (Мо)molybdenum (Mo) 0,05÷3,00.05 ÷ 3.0 ниобий (Nb)niobium (Nb) 0,05÷0,40.05 ÷ 0.4 кобальт (Со)cobalt (Co) 0,01÷3,00.01 ÷ 3.0 азот(N)nitrogen (N) 0,005÷0,150.005 ÷ 0.15 кальций (Са)calcium (Ca) ≤0,02≤0.02 бор (В)boron (B) ≤0,005≤0.005 церий (Се)cerium (ce) ≤0,02≤0.02 кремний (Si)silicon (Si) ≤0,8≤0.8 марганец (Mn)Manganese (Mn) ≤0,8≤0.8 железо (Fe) и сопутствующие примесиiron (Fe) and related impurities остальное,rest,
при соотношении ферритообразующих и аустенитообразующих элементов с их коэффициентами эквивалентностиwith the ratio of ferrite-forming and austenite-forming elements with their equivalence coefficients
Figure 00000001
Figure 00000001
 Niэкв.=(22,3±3)-0,83Crэкв..Ni eq. = (22.3 ± 3) -0.83Cr equiv. . 2. Сталь по п.1, отличающаяся тем, что процесс ее получения включает электродуговую выплавку с вакуумно-кислородным рафинированием в ковше, горячую прокатку и термообработку.2. Steel according to claim 1, characterized in that the process of its production includes electric arc smelting with vacuum-oxygen refining in a ladle, hot rolling and heat treatment. 3. Сталь по п.2, отличающаяся тем, что температуру окончания горячей прокатки ограничивают в интервале от 970 до 1050°С.3. Steel according to claim 2, characterized in that the temperature of the end of hot rolling is limited in the range from 970 to 1050 ° C. 4. Сталь по п.2, отличающаяся тем, что термообработка состоит из нескольких режимов в диапазоне температур от -70 до 950°С при выдержке не менее 2 часов.4. Steel according to claim 2, characterized in that the heat treatment consists of several modes in the temperature range from -70 to 950 ° C with a holding time of at least 2 hours. 5. Сталь по любому из пп.1-4, отличающаяся тем, что она имеет предел текучести при растяжении в диапазоне от 110 до 150 кГс/мм2 (1078-1470 МПа), ударную вязкость не менее 7 кГс·м/см2 (68,6 Дж/см2) и эквивалент сопротивления точечной коррозии >15.5. Steel according to any one of claims 1 to 4, characterized in that it has a tensile strength in the range from 110 to 150 kgf / mm 2 (1078-1470 MPa), impact strength of at least 7 kgf · m / cm 2 (68.6 J / cm 2 ) and pitting corrosion equivalent> 15.
RU2006131488/02A 2006-09-04 2006-09-04 Stainless high-strength steel RU2346074C2 (en)

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KR101143170B1 (en) * 2009-04-23 2012-05-08 주식회사 포스코 Steel wire rod having high strength and excellent toughness
CN101994066B (en) * 2009-08-27 2012-07-04 中国科学院金属研究所 Deformation induced maraging stainless steel and machining process thereof

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