RU2013142584A - TOOL STEEL FOR WORKING AT HIGH TEMPERATURES AND METHOD FOR PRODUCING INSTRUMENTAL STEEL FOR WORKING AT HIGH TEMPERATURES - Google Patents

TOOL STEEL FOR WORKING AT HIGH TEMPERATURES AND METHOD FOR PRODUCING INSTRUMENTAL STEEL FOR WORKING AT HIGH TEMPERATURES Download PDF

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RU2013142584A
RU2013142584A RU2013142584/02A RU2013142584A RU2013142584A RU 2013142584 A RU2013142584 A RU 2013142584A RU 2013142584/02 A RU2013142584/02 A RU 2013142584/02A RU 2013142584 A RU2013142584 A RU 2013142584A RU 2013142584 A RU2013142584 A RU 2013142584A
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high temperatures
working
low
tool steel
steel
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RU2575527C2 (en
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Йёрген АНДЕРССОН
Хенрик ЙЕСПЕРСОН
Ханс-Олоф АНДРЕН
Ларс-Эрик СВЕНССОН
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Уддехольмс АБ
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Abstract

1. Низкохромистая инструментальная сталь для работы при высоких температурах, состоящая из, мас.%:факультативноне считая примесей.2. Низкохромистая инструментальная сталь для работы при высоких температурах по п.1, удовлетворяющая одному или более из следующих условий, мас.%:3. Низкохромистая инструментальная сталь для работы при высоких температурах по п.1 или п.2, удовлетворяющая одному или более из следующих условий, мас.%:4. Низкохромистая инструментальная сталь для работы при высоких температурах по п.1, удовлетворяющая одному или более из следующих условий, мас.%:5. Низкохромистая инструментальная сталь для работы при высоких температурах по п.1, удовлетворяющая одному или более из следующих условий, мас.%:6. Низкохромистая инструментальная сталь для работы при высоких температурах по п.1, состоящая из, мас.%:факультативноне считая примесей.7. Низкохромистая инструментальная сталь для работы при высоких температурах по п.1, состоящая из, мас.%:факультативноне считая примесей.8. Низкохромистая инструментальная сталь для работы при высоких температурах по п.1, состоящая из, мас.%:факультативноне считая примесей.9. Низкохромистая инструментальная сталь для работы при высоких температурах по п.1, состоящая из,мас.%:факультативноне считая примесей.10. Низкохромистая инструментальная сталь для работы при высоких температурах по п.1, состоящая из, мас.%:факультативноне считая примесей.11. Способ изготовления изделия из низкохромистой инструментальной стали для работы при высоких температурах с улучшенной отпускной устойчивостью, включающий:a) получение стали, как описано в любом из предыдущих пунктов формулы;b) формирован�1. Low-chromium tool steel for working at high temperatures, consisting of, wt.%: Optionally not counting impurities. 2. The low-chromium tool steel for working at high temperatures according to claim 1, satisfying one or more of the following conditions, wt.%: 3. Low-chromium tool steel for working at high temperatures according to claim 1 or claim 2, satisfying one or more of the following conditions, wt.%: 4. The low-chromium tool steel for working at high temperatures according to claim 1, satisfying one or more of the following conditions, wt.%: 5. The low-chromium tool steel for working at high temperatures according to claim 1, satisfying one or more of the following conditions, wt.%: 6. The low-chromium tool steel for working at high temperatures according to claim 1, consisting of, wt.%: Optionally not counting impurities. The low-chromium tool steel for working at high temperatures according to claim 1, consisting of, wt.%: Optionally not counting impurities. The low-chromium tool steel for working at high temperatures according to claim 1, consisting of, wt.%: Optionally not counting impurities. The low-chromium tool steel for working at high temperatures according to claim 1, consisting of, wt.%: Optionally not counting impurities. The low-chromium tool steel for working at high temperatures according to claim 1, consisting of, wt.%: Optionally not counting impurities. 11. A method of manufacturing a product from low-chromium tool steel for working at high temperatures with improved tempering stability, including: a) obtaining steel, as described in any of the preceding claims; b) formed

Claims (15)

1. Низкохромистая инструментальная сталь для работы при высоких температурах, состоящая из, мас.%:1. Low-chromium tool steel for working at high temperatures, consisting of, wt.%: CC 0,08-0,400.08-0.40 NN 0,015-0,300.015-0.30 C+NC + n 0,30-0,500.30-0.50 CrCr 1-41-4 MoMo 1,5-31,5-3 VV 0,8-1,30.8-1.3 MnMn 0,5-20.5-2 SiSi 0,1-0,50.1-0.5
факультативноoptional NiNi <3<3 CoCo ≤5≤5 BB <0,01<0.01 FeFe остальное,rest,
не считая примесей. not counting impurities. 2. Низкохромистая инструментальная сталь для работы при высоких температурах по п.1, удовлетворяющая одному или более из следующих условий, мас.%:2. Low-chromium tool steel for working at high temperatures according to claim 1, satisfying one or more of the following conditions, wt.%: CC 0,20-0,380.20-0.38 предпочтительно 0,30-0,35preferably 0.30-0.35 NN 0,03-0,300.03-0.30 предпочтительно 0,03-0,10preferably 0.03-0.10 C+NC + n 0,30-0,500.30-0.50 предпочтительно 0,36-0,44preferably 0.36-0.44 CrCr 1-31-3 предпочтительно 1,2-2,6preferably 1.2-2.6 MoMo 1,9-2,91.9-2.9 предпочтительно 2,2-2,8preferably 2.2-2.8 VV 1,0-1,31.0-1.3 предпочтительно 1,15-1,25preferably 1.15-1.25 MnMn 1-21-2 предпочтительно 1,1-1,9preferably 1.1-1.9 SiSi 0,1-0,50.1-0.5 предпочтительно 0,2-0,4preferably 0.2-0.4 NiNi <1<1 предпочтительно <0,25preferably <0.25 CoCo <4<4 предпочтительно <0,20preferably <0.20 BB 0,001-0,010.001-0.01 предпочтительно 0,001-0,005.preferably 0.001-0.005.
3. Низкохромистая инструментальная сталь для работы при высоких температурах по п.1 или п.2, удовлетворяющая одному или более из следующих условий, мас.%:3. Low-chromium tool steel for working at high temperatures according to claim 1 or claim 2, satisfying one or more of the following conditions, wt.%: CC 0,25-0,350.25-0.35 предпочтительно 0,27-0,34preferably 0.27-0.34 NN 0,04-0,300.04-0.30 предпочтительно 0,04-0,10preferably 0.04-0.10 C+NC + n 0,38-0,420.38-0.42   CrCr 1,3-2,51.3-2.5 предпочтительно 1,4-2,3.preferably 1.4-2.3.
4. Низкохромистая инструментальная сталь для работы при высоких температурах по п.1, удовлетворяющая одному или более из следующих условий, мас.%:4. Low-chromium tool steel for working at high temperatures according to claim 1, satisfying one or more of the following conditions, wt.%: NN 0,042-0,150.042-0.15 предпочтительно 0,045-0,12preferably 0.045-0.12 C+NC + n 0,39-0,410.39-0.41   CrCr 1,3-2,31.3-2.3 предпочтительно 1,4-2,1.preferably 1.4-2.1.
5. Низкохромистая инструментальная сталь для работы при высоких температурах по п.1, удовлетворяющая одному или более из следующих условий, мас.%:5. Low-chromium tool steel for working at high temperatures according to claim 1, satisfying one or more of the following conditions, wt.%: CC 0,20-0,350.20-0.35 предпочтительно 0,30-0,34preferably 0.30-0.34 NN 0,042-0,120.042-0.12 предпочтительно 0,045-0,12preferably 0.045-0.12 C+NC + n 0,39-0,410.39-0.41   CrCr 1,4-1,91.4-1.9 предпочтительно 1,5-1,7preferably 1.5-1.7 Mo/VMo / V 1,8-2,31.8-2.3 предпочтительно 1,9-2,1preferably 1.9-2.1 Cr/VCr / V <2<2 предпочтительно <1,8.preferably <1.8.
6. Низкохромистая инструментальная сталь для работы при высоких температурах по п.1, состоящая из, мас.%:6. Low-chromium tool steel for working at high temperatures according to claim 1, consisting of, wt.%: CC 0,20-0,400.20-0.40 NN 0,03-0,300.03-0.30 C+NC + n 0,30-0,500.30-0.50 CrCr 1,2-2,31.2-2.3 MoMo 1-31-3 VV 0,8-1,30.8-1.3 MnMn 1-21-2 SiSi 0,1-0,40.1-0.4 NiNi <1<1
факультативноoptional CoCo 3-53-5 BB 0,001-0,010.001-0.01 Mo/VMo / V 1,8-2,31.8-2.3 Cr/VCr / V <2<2 FeFe остальное, rest,
не считая примесей. not counting impurities. 7. Низкохромистая инструментальная сталь для работы при высоких температурах по п.1, состоящая из, мас.%:7. Low-chromium tool steel for working at high temperatures according to claim 1, consisting of, wt.%: CC 0,20-0,400.20-0.40 NN 0,03-0,300.03-0.30 C+NC + n 0,30-0,500.30-0.50 CrCr 1,2-2,31.2-2.3 MoMo 1,5-31,5-3 VV 0,8-1,30.8-1.3 MnMn 1-21-2 SiSi 0,1-0,40.1-0.4 NiNi <1<1
факультативноoptional CoCo 3-53-5 BB 0,001-0,010.001-0.01 Mo/VMo / V 1,8-2,31.8-2.3 Cr/VCr / V <2<2 FeFe остальное,rest,
не считая примесей.not counting impurities. 8. Низкохромистая инструментальная сталь для работы при высоких температурах по п.1, состоящая из, мас.%:8. Low-chromium tool steel for working at high temperatures according to claim 1, consisting of, wt.%: CC 0,20-0,400.20-0.40 NN 0,04-0,300.04-0.30 C+NC + n 0,30-0,500.30-0.50 CrCr 1,2-2,31.2-2.3 MoMo 1-31-3 VV 0,8-1,30.8-1.3 MnMn 1-21-2 SiSi 0,1-0,40.1-0.4 NiNi <1<1 CoCo <0,2<0.2
факультативноoptional BB 0,001-0,010.001-0.01 Mo/VMo / V 1,8-2,31.8-2.3 Cr/VCr / V <2<2 FeFe остальное,rest,
не считая примесей.not counting impurities. 9. Низкохромистая инструментальная сталь для работы при высоких температурах по п.1, состоящая из,мас.%:9. Low-chromium tool steel for working at high temperatures according to claim 1, consisting of, wt.%: CC 0,20-0,380.20-0.38 NN 0,04-0,300.04-0.30 C+NC + n 0,36-0,440.36-0.44 CrCr 1,2-2,31.2-2.3 MoMo 1,9-2,91.9-2.9 VV 0,8-1,30.8-1.3 MnMn 1-21-2 SiSi 0,1-0,40.1-0.4 NiNi <0,25<0.25 CoCo <0,20<0.20
факультативноoptional BB 0,001-0,010.001-0.01 Mo/VMo / V 1,8-2,31.8-2.3 Cr/VCr / V <2<2 FeFe остальное, rest,
не считая примесей.not counting impurities. 10. Низкохромистая инструментальная сталь для работы при высоких температурах по п.1, состоящая из, мас.%:10. Low-chromium tool steel for working at high temperatures according to claim 1, consisting of, wt.%: CC 0,30-0,340.30-0.34 NN 0,04-0,090.04-0.09 C+NC + n 0,37-0,430.37-0.43 CrCr 1,4-1,91.4-1.9 MoMo 2,2-2,82.2-2.8 VV 1,0-1,31.0-1.3 MnMn 1-21-2 SiSi 0,2-0,40.2-0.4 MiMi <0,25<0.25 CoCo <0,20<0.20
факультативноoptional BB 0,001-0,0050.001-0.005 Mo/VMo / V 1,8-2,31.8-2.3 Cr/VCr / V <2<2 FeFe остальное,rest,
не считая примесей.not counting impurities. 11. Способ изготовления изделия из низкохромистой инструментальной стали для работы при высоких температурах с улучшенной отпускной устойчивостью, включающий:11. A method of manufacturing a product of low-chromium tool steel for operation at high temperatures with improved tempering stability, including: a) получение стали, как описано в любом из предыдущих пунктов формулы;a) steel production as described in any of the preceding claims; b) формирование из стали стального изделия;b) forming a steel product from steel; c) аустенитизация стального изделия, полученного на стадии b), при температуре не более 1200°C в течение времени порядка получаса с последующей закалкой; иc) austenitizing the steel product obtained in step b) at a temperature of not more than 1200 ° C for a time of the order of half an hour, followed by hardening; and d) отпуск закаленного стального изделия в течение 2 часов по меньшей мере дважды при температуре в интервале от 500 до 700°C.d) tempering the hardened steel product for 2 hours at least twice at a temperature in the range from 500 to 700 ° C. 12. Способ по п.11, включающий выполнение аустенитизации стального изделия при температуре 1050-1150°C, предпочтительно при 1080-1150°C.12. The method according to claim 11, comprising performing austenitization of a steel product at a temperature of 1050-1150 ° C, preferably at 1080-1150 ° C. 13. Способ по любому из пп.11 или 12, включающий проведение отпуска закаленного стального изделия при температуре от 550 до 680°C, предпочтительно при 600-650°C и еще более предпочтительно при 625-650°C.13. The method according to any one of claims 11 or 12, comprising conducting tempering of the hardened steel product at a temperature of from 550 to 680 ° C, preferably at 600-650 ° C, and even more preferably at 625-650 ° C. 14. Способ по п.11, дополнительно включающий введение азота следующим образом: сначала изготовление стального порошка с составом, приближенным к требуемому, исключая азот, затем азотирование этого порошка в твердом состоянии при помощи газообразного азота для обеспечения желательного состава, а потом горячее прессование порошка для формирования слитка.14. The method according to claim 11, further comprising introducing nitrogen as follows: first, manufacturing a steel powder with a composition close to that required, excluding nitrogen, then nitriding the powder in a solid state with nitrogen gas to provide the desired composition, and then hot pressing the powder to form an ingot. 15. Способ по п.11, дополнительно включающий стадии гомогенизации, ковки и мягкого отжига перед аустенитизацией. 15. The method according to claim 11, further comprising the stages of homogenization, forging and soft annealing before austenitization.
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