KR20150119952A - 강재 및 수소용 용기 그리고 그들의 제조 방법 - Google Patents
강재 및 수소용 용기 그리고 그들의 제조 방법 Download PDFInfo
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Abstract
Description
Claims (14)
- 질량%로, C: 0.05∼0.60%, Si: 0.01∼2.0%, Mn: 0.3∼3.0%, P: 0.001∼0.040%, S: 0.0001∼0.010%, N: 0.0001∼0.0060%, Al: 0.01∼1.5%를 함유하고, 추가로 Ti: 0.01∼0.20%, Nb: 0.01∼0.20%, V: 0.01% 이상 0.05% 미만의 1종 또는 2종 이상을 함유하고, 또한, B: 0.0001∼0.01%, Mo: 0.005∼2.0%, Cr: 0.005∼3.0%의 1종 또는 2종 이상을 함유하고, 잔부가 Fe 및 불가피적 불순물인 성분 조성을 갖고, 체적률로 95% 이상이 템퍼링 마르텐사이트이며, Ti, Nb, V 중 어느 1종 이상과 탄소, 질소 중 어느 1종 이상을 갖는 직경 100㎚ 이하의 석출물의 밀도가 50개/㎛2 이상이며, 또한 구(舊) 오스테나이트 입경이 3㎛ 이상인 강 조직을 갖는 강재.
- 제1항에 있어서,
질량%로, C: 0.05% 이상 0.21% 미만을 함유하는 강재. - 제1항에 있어서,
질량%로, C: 0.21∼0.60%를 함유하는 강재. - 제1항 내지 제3항 중 어느 한 항에 있어서,
추가로, 질량%로, Ni: 0.005∼0.70%, Cu: 0.005∼2.00%의 1종 또는 2종을 함유하는 강재. - 제1항 내지 제4항 중 어느 한 항에 있어서,
추가로, 질량%로, Ca: 0.001∼0.01%, REM: 0.001∼0.01%의 1종 또는 2종을 함유하는 강재. - 제1항 내지 제5항 중 어느 한 항에 있어서,
추가로, 질량%로, Mg: 0.001∼0.01%, Zr: 0.001∼0.01%의 1종 또는 2종을 함유하는 강재. - 제1항 내지 제6항 중 어느 한 항에 있어서,
추가로, 질량%로, Sb: 0.0001∼0.1%를 함유하는 강재. - 제1항 내지 제7항 중 어느 한 항에 있어서,
추가로, 질량%로, W: 0.001∼1%를 함유하는 강재. - 제1항 내지 제8항 중 어느 한 항에 있어서,
상기 강재가 강관인 강재. - 제1항 내지 제8항 중 어느 것에 기재된 성분 조성을 갖고, 체적률로 95% 이상이 템퍼링 마르텐사이트이며, Ti, Nb, V 중 어느 1종 이상과 탄소, 질소 중 어느 1종 이상을 갖는 직경 100㎚ 이하의 석출물의 밀도가 50개/㎛2 이상이며, 또한 구 오스테나이트 입경이 3㎛ 이상인 강 조직을 갖는 수소용 용기.
- 제1항 내지 제8항 중 어느 것에 기재된 성분 조성을 갖는 강 소재를 1100℃ 이상으로 가열한 후, 950℃에서 마무리 온도까지의 사이의 가공률을 20% 이하로 하여, 마무리 온도 800℃ 이상에서 가공하고, 이어서 1℃/s 이상의 냉각 속도로 350℃ 이하까지 냉각하고, 계속해서 400℃ 이상 750℃ 이하로 가열하고, 60초 이상 보존유지(保持) 후 냉각하는, 체적률로 95% 이상이 템퍼링 마르텐사이트이며, 또한 Ti, Nb, V 중 어느 1종 이상과 탄소, 질소 중 어느 1종 이상을 갖는 직경 100㎚ 이하의 석출물의 밀도가 50개/㎛2 이상이며, 또한 구 오스테나이트 입경이 3㎛ 이상인 강 조직을 갖는 강재의 제조 방법.
- 제1항 내지 제8항 중 어느 것에 기재된 성분 조성을 갖는 강 소재를 1100℃ 이상으로 가열한 후, 950℃에서 마무리 온도까지의 사이의 확관율을 20% 이하로 하여, 마무리 온도 800℃ 이상에서 확관하고, 이어서 1℃/s 이상의 냉각 속도로 350℃ 이하까지 냉각하고, 계속해서 400℃ 이상 750℃ 이하로 가열하고, 60초 이상 보존유지 후 냉각하는, 체적률로 95% 이상이 템퍼링 마르텐사이트이며, Ti, Nb, V 중 어느 1종 이상과 탄소, 질소 중 어느 1종 이상을 갖는 직경 100㎚ 이하의 석출물의 밀도가 50개/㎛2 이상이며, 구 오스테나이트 입경이 3㎛ 이상인 강 조직을 갖는 강관의 제조 방법.
- 제1항 내지 제8항 중 어느 것에 기재된 성분 조성을 갖고, 포화 피크린산 에칭하여 얻은 조직의 평균 입경이 3㎛ 이상인 강재를, 800℃ 이상으로 가열하고, 60초 이상 보존유지한 후, 1℃/s 이상의 냉각 속도로 350℃ 이하까지 냉각하고, 계속해서 400℃ 이상 750℃ 이하로 가열하고, 60초 이상 보존유지 후 냉각하는, 체적률로 95% 이상이 템퍼링 마르텐사이트이며, Ti, Nb, V 중 어느 1종 이상과 탄소, 질소 중 어느 1종 이상을 갖는 직경 100㎚ 이하의 석출물의 밀도가 50개/㎛2 이상이며, 또한 구 오스테나이트 입경이 3㎛ 이상인 강 조직을 갖는 강재의 제조 방법.
- 제1항 내지 제8항 중 어느 것에 기재된 성분 조성을 갖고, 포화 피크린산 에칭하여 얻은 조직의 평균 입경이 3㎛ 이상인 강재를, 소망하는 용기 형상으로 성형한 후, 800℃ 이상으로 가열하고, 60초 이상 보존유지한 후, 1℃/s 이상의 냉각 속도로 350℃ 이하까지 냉각하고, 계속해서 400℃ 이상 750℃ 이하로 가열하고, 60초 이상 보존유지 후 냉각하는, 체적률로 95% 이상이 템퍼링 마르텐사이트이며, Ti, Nb, V 중 어느 1종 이상과 탄소, 질소 중 어느 1종 이상을 갖는 직경 100㎚ 이하의 석출물의 밀도가 50개/㎛2 이상이며, 또한 구 오스테나이트 입경이 3㎛ 이상인 강 조직을 갖는 수소용 용기의 제조 방법.
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| PCT/JP2014/001832 WO2014156187A1 (ja) | 2013-03-29 | 2014-03-28 | 鋼材および水素用容器ならびにそれらの製造方法 |
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| JP5630125B2 (ja) * | 2009-08-06 | 2014-11-26 | Jfeスチール株式会社 | 低温靭性に優れた高強度熱延鋼板およびその製造方法 |
| US8962149B2 (en) | 2009-08-31 | 2015-02-24 | Nippon Steel & Sumitomo Metal Corporation | Spot welded joint |
| JP4977879B2 (ja) * | 2010-02-26 | 2012-07-18 | Jfeスチール株式会社 | 曲げ性に優れた超高強度冷延鋼板 |
| BR112012021348A2 (pt) * | 2010-02-26 | 2016-08-23 | Nippon Steel & Sumitomo Metal Corp | "material de aço tratado por calor, método para produzir o mesmo, e material de base de aço para o mesmo." |
| JP5842537B2 (ja) | 2010-10-28 | 2016-01-13 | Jfeスチール株式会社 | 高圧水素貯蔵容器用高強度鋼材 |
| JP5849609B2 (ja) | 2010-10-28 | 2016-01-27 | Jfeスチール株式会社 | 高圧水素貯蔵用鋼材 |
| BR112013025040B1 (pt) * | 2011-03-29 | 2018-11-06 | Jfe Steel Corporation | chapa de aço resistente à abrasão tendo resistência a fragilização por corrosão sob tensão, e método para produção da mesma |
| US9879334B2 (en) * | 2011-03-29 | 2018-01-30 | Jfe Steel Corporation | Abrasion resistant steel plate or steel sheet excellent in resistance to stress corrosion cracking and method for manufacturing the same |
| JP6017341B2 (ja) * | 2013-02-19 | 2016-10-26 | 株式会社神戸製鋼所 | 曲げ性に優れた高強度冷延鋼板 |
-
2014
- 2014-03-28 CN CN201480018922.3A patent/CN105102657B/zh active Active
- 2014-03-28 JP JP2014533735A patent/JP5633664B1/ja active Active
- 2014-03-28 KR KR1020157026339A patent/KR101730432B1/ko active Active
- 2014-03-28 CA CA2907507A patent/CA2907507C/en active Active
- 2014-03-28 WO PCT/JP2014/001832 patent/WO2014156187A1/ja not_active Ceased
- 2014-03-28 EP EP14775133.3A patent/EP2980246B1/en active Active
- 2014-03-28 US US14/780,642 patent/US10106875B2/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018012856A (ja) * | 2016-07-20 | 2018-01-25 | 新日鐵住金株式会社 | 低合金鋼材、低合金鋼管および容器、ならびにその容器の製造方法 |
| JP2018012855A (ja) * | 2016-07-20 | 2018-01-25 | 新日鐵住金株式会社 | 低合金鋼材、低合金鋼管および容器、ならびにその容器の製造方法 |
| KR20220089109A (ko) * | 2020-12-21 | 2022-06-28 | 주식회사 포스코 | 충격인성이 우수한 압력용기용 고강도 강재 및 이의 제조방법 |
| US11767572B1 (en) | 2022-06-15 | 2023-09-26 | Hyundai Motor Company | Alloy steel having excellent hydrogen embrittlement resistance and strength and method of manufacturing same |
Also Published As
| Publication number | Publication date |
|---|---|
| US20160053355A1 (en) | 2016-02-25 |
| CA2907507C (en) | 2017-09-12 |
| EP2980246B1 (en) | 2019-01-09 |
| EP2980246A4 (en) | 2016-03-09 |
| JP5633664B1 (ja) | 2014-12-03 |
| CA2907507A1 (en) | 2014-10-02 |
| JPWO2014156187A1 (ja) | 2017-02-16 |
| WO2014156187A1 (ja) | 2014-10-02 |
| EP2980246A1 (en) | 2016-02-03 |
| US10106875B2 (en) | 2018-10-23 |
| KR101730432B1 (ko) | 2017-04-26 |
| CN105102657A (zh) | 2015-11-25 |
| CN105102657B (zh) | 2017-03-15 |
| AU2014245561B2 (en) | 2016-04-28 |
| AU2014245561A1 (en) | 2015-09-24 |
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