KR100544745B1 - 심가공용 인장강도 1100MPa급 저온-고압용기용 후강판및 그 제조방법 - Google Patents
심가공용 인장강도 1100MPa급 저온-고압용기용 후강판및 그 제조방법 Download PDFInfo
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- KR100544745B1 KR100544745B1 KR1020010085552A KR20010085552A KR100544745B1 KR 100544745 B1 KR100544745 B1 KR 100544745B1 KR 1020010085552 A KR1020010085552 A KR 1020010085552A KR 20010085552 A KR20010085552 A KR 20010085552A KR 100544745 B1 KR100544745 B1 KR 100544745B1
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- steel plate
- heat treatment
- rolling
- thick steel
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0247—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
- C21D8/0263—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment following hot rolling
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/005—Ferrite
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/009—Pearlite
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
- C21D8/0226—Hot rolling
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Heat Treatment Of Steel (AREA)
Abstract
Description
Claims (2)
- 중량%로 C : 0.251~0.40%, Si : 0.15~0.40%, Mn : 0.4~1.0%, Al : 0.001~0.05%, Cr : 0.8~1.2%, Mo : 0.15~0.35%, Ni : 1.0%이하, P : 0.015%이하, S : 0.010%이하 나머지 불가피한 불순물로 구성되고, 그 미세조직이 페라이트 + 퍼얼라이트 + 베이나이트로 3상 복합조직인 심가공용 인장강도 1100MPa급 저온-고압용기용 후강판.
- 중량%로 C: 0.25~0.40%, Si: 0.15~0.40%, Mn: 0.4~1.0%, Al: 0.001~0.05%, Cr: 0.8~1.2%, Mo: 0.15~0.35%, Ni: 1.0%이하, P: 0.015%이하, S: 0.010%이하 나머지 불가피한 불순물로 구성되는 강괴를 1000 ~ 1250℃에서 가열 후, 압연 폭출비(폭출비 = 압연 후 강판의 폭 / 압연 전 슬라브의 폭)를 1.4이상 유지하도록 압연하여 800℃ ~ 980℃에서 압연종료하고, 그 미세조직이 페라이트 + 퍼얼라이트 + 베이나이트로 3상 복합조직 형태로 구성하기 위하여 노말라이징 열처리하고, 심가공 전 적절한 가공성을 부여하기 위해 구상화 열처리하고, 구상화율이 80% 이상되도록 Ac1이상 및 Ac3이하의 온도에서 1 ~ 5시간 유지한 후, 850℃ ~ 950℃에서 오스테나이트 조직으로 변태를 위해 적정시간 유지 후 퀀칭을 실시하고, 550℃ 이상에서 템퍼링을 실시하는 심가공용 인장강도 1100MPa급 저온-고압용기용 후강판의 열간압연 후강판의 제조 방법.
Priority Applications (1)
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KR1020010085552A KR100544745B1 (ko) | 2001-12-27 | 2001-12-27 | 심가공용 인장강도 1100MPa급 저온-고압용기용 후강판및 그 제조방법 |
Applications Claiming Priority (1)
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KR1020010085552A KR100544745B1 (ko) | 2001-12-27 | 2001-12-27 | 심가공용 인장강도 1100MPa급 저온-고압용기용 후강판및 그 제조방법 |
Publications (2)
Publication Number | Publication Date |
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KR20030055537A KR20030055537A (ko) | 2003-07-04 |
KR100544745B1 true KR100544745B1 (ko) | 2006-01-24 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100711373B1 (ko) | 2005-12-21 | 2007-04-30 | 주식회사 포스코 | 인장강도 1200MPa급인 저온·고압용기를 제조하기 위한딥 드로잉용 강재, 상기 강재의 제조방법 및 상기저온·고압용기의 제조방법 |
KR100951248B1 (ko) * | 2002-12-09 | 2010-04-05 | 주식회사 포스코 | 인장강도 1100㎫급 심가공용 고장력강 및 이를 이용한저온고압용기의 제조방법 |
Families Citing this family (5)
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KR100588758B1 (ko) * | 2004-02-23 | 2006-06-14 | 현대자동차주식회사 | 자동차용 킥다운 드럼 소재 및 그 제조 방법 |
KR101253885B1 (ko) * | 2010-12-27 | 2013-04-16 | 주식회사 포스코 | 연성이 우수한 성형 부재용 강판, 성형 부재 및 그 제조방법 |
CN109972039A (zh) * | 2019-04-09 | 2019-07-05 | 舞阳钢铁有限责任公司 | 一种高强韧性临氢压力容器用钢板及其生产方法 |
CN110184544A (zh) * | 2019-07-08 | 2019-08-30 | 常熟市虹桥铸钢有限公司 | 一种低合金材料与使用该材料制成的零件的热处理方法 |
CN111020377B (zh) * | 2019-11-16 | 2021-09-24 | 舞阳钢铁有限责任公司 | 一种低温压力容器用钢板热处理方法 |
Citations (4)
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---|---|---|---|---|
JPS58167751A (ja) * | 1982-03-29 | 1983-10-04 | Mitsubishi Motors Corp | 熱間鍛造非調質鋼 |
JPH04329848A (ja) * | 1991-05-02 | 1992-11-18 | Kobe Steel Ltd | 疲労特性と伸びフランジ性の優れた高強度熱延鋼板 |
JPH11140542A (ja) * | 1997-11-11 | 1999-05-25 | Nkk Corp | 高延性を有し、かつ材質均一性に優れた高強度熱延鋼板の製造方法 |
JP2000303140A (ja) * | 1999-04-19 | 2000-10-31 | Daido Steel Co Ltd | プラスチック成形金型用鋼 |
-
2001
- 2001-12-27 KR KR1020010085552A patent/KR100544745B1/ko active IP Right Grant
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58167751A (ja) * | 1982-03-29 | 1983-10-04 | Mitsubishi Motors Corp | 熱間鍛造非調質鋼 |
JPH04329848A (ja) * | 1991-05-02 | 1992-11-18 | Kobe Steel Ltd | 疲労特性と伸びフランジ性の優れた高強度熱延鋼板 |
JPH11140542A (ja) * | 1997-11-11 | 1999-05-25 | Nkk Corp | 高延性を有し、かつ材質均一性に優れた高強度熱延鋼板の製造方法 |
JP2000303140A (ja) * | 1999-04-19 | 2000-10-31 | Daido Steel Co Ltd | プラスチック成形金型用鋼 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100951248B1 (ko) * | 2002-12-09 | 2010-04-05 | 주식회사 포스코 | 인장강도 1100㎫급 심가공용 고장력강 및 이를 이용한저온고압용기의 제조방법 |
KR100711373B1 (ko) | 2005-12-21 | 2007-04-30 | 주식회사 포스코 | 인장강도 1200MPa급인 저온·고압용기를 제조하기 위한딥 드로잉용 강재, 상기 강재의 제조방법 및 상기저온·고압용기의 제조방법 |
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KR20030055537A (ko) | 2003-07-04 |
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