KR100570892B1 - 연신율 및 내리징성이 우수한 페라이트계 sts409l 스테인리스강의 제조방법 - Google Patents
연신율 및 내리징성이 우수한 페라이트계 sts409l 스테인리스강의 제조방법 Download PDFInfo
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- KR100570892B1 KR100570892B1 KR1020010080132A KR20010080132A KR100570892B1 KR 100570892 B1 KR100570892 B1 KR 100570892B1 KR 1020010080132 A KR1020010080132 A KR 1020010080132A KR 20010080132 A KR20010080132 A KR 20010080132A KR 100570892 B1 KR100570892 B1 KR 100570892B1
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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
- C21D8/0221—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
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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
- C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
- C21D8/0236—Cold 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
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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
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
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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
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
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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
- C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
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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
- 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
- C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium
-
- 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
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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 Sheet Steel (AREA)
Abstract
Description
Claims (1)
- 중량 %로 C; 0.01% 이하, Si:1.0% 이하 , Mn:1% 이하, P: 0.035 이하, S: 0.03 이하, Cr:10 ~ 12%, Mo: 0.1% 이하, N: 0.01% 이하, Cu: 0.1% 이하, Al: 0.1% 이하, Ni: 0.2% 이하, Ti: 0.3% 이하 나머지 Fe 및 불가피하게 첨가되는 불순물로 조성되고, C+N: 0.015% 이하, 10≤Ti/(C+N)≤15를 만족하는 조성의 강을,연주 스라브 내에 등축정율이 70% 이상이 되게 제조된 스라브을 가열온도 1200℃ 이하, 마무리 압연온도가 800℃ 이하가 되게 열간압연하여 열연소둔을 생략하여 산세하는 단계;또한 냉간압하율 85% 이상으로 냉간압연한 후에 냉연판온도 기준 1000℃이상~1100℃이하에서 승온속도 400℃/sec. 이상으로 급속가열하여 이 온도 범위내에서 5초 이상 ~ 15초 이하로 냉연소둔을 실시하는 단계;로 이루어진 것을 특징으로 하는 연신율이 높고, 내리징성이 우수한 페라이트계 STS409L 스테인리스강의 제조방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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KR1020010080132A KR100570892B1 (ko) | 2001-12-17 | 2001-12-17 | 연신율 및 내리징성이 우수한 페라이트계 sts409l 스테인리스강의 제조방법 |
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KR1020010080132A KR100570892B1 (ko) | 2001-12-17 | 2001-12-17 | 연신율 및 내리징성이 우수한 페라이트계 sts409l 스테인리스강의 제조방법 |
Publications (2)
Publication Number | Publication Date |
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KR20030049812A KR20030049812A (ko) | 2003-06-25 |
KR100570892B1 true KR100570892B1 (ko) | 2006-04-12 |
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KR1020010080132A KR100570892B1 (ko) | 2001-12-17 | 2001-12-17 | 연신율 및 내리징성이 우수한 페라이트계 sts409l 스테인리스강의 제조방법 |
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Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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KR101049012B1 (ko) * | 2003-12-18 | 2011-07-12 | 주식회사 포스코 | 409l 페라이트계 스테인레스강의 제조방법 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0673458A (ja) * | 1992-08-26 | 1994-03-15 | Nisshin Steel Co Ltd | 表面性状とリジング性および加工性に優れたフエライト系ステンレス鋼板の製造方法 |
KR950003467A (ko) * | 1993-07-02 | 1995-02-16 | 조말수 | 내입계 부식성이 우수한 페라이트계 스테인레스강 제조방법 |
JPH1017937A (ja) * | 1996-06-28 | 1998-01-20 | Kawasaki Steel Corp | 加工性に優れるフェライト系ステンレス鋼板の製造方法 |
KR19990055103A (ko) * | 1997-12-27 | 1999-07-15 | 이구택 | 열연미소둔재를 이용한 스테인레스 냉연강판의 제조방법 |
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- 2001-12-17 KR KR1020010080132A patent/KR100570892B1/ko active IP Right Grant
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0673458A (ja) * | 1992-08-26 | 1994-03-15 | Nisshin Steel Co Ltd | 表面性状とリジング性および加工性に優れたフエライト系ステンレス鋼板の製造方法 |
KR950003467A (ko) * | 1993-07-02 | 1995-02-16 | 조말수 | 내입계 부식성이 우수한 페라이트계 스테인레스강 제조방법 |
JPH1017937A (ja) * | 1996-06-28 | 1998-01-20 | Kawasaki Steel Corp | 加工性に優れるフェライト系ステンレス鋼板の製造方法 |
KR19990055103A (ko) * | 1997-12-27 | 1999-07-15 | 이구택 | 열연미소둔재를 이용한 스테인레스 냉연강판의 제조방법 |
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KR20030049812A (ko) | 2003-06-25 |
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