KR100729526B1 - 리징성이 우수한 페라이트계 스테인레스강의 제조방법 - Google Patents
리징성이 우수한 페라이트계 스테인레스강의 제조방법 Download PDFInfo
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- KR100729526B1 KR100729526B1 KR1020010039688A KR20010039688A KR100729526B1 KR 100729526 B1 KR100729526 B1 KR 100729526B1 KR 1020010039688 A KR1020010039688 A KR 1020010039688A KR 20010039688 A KR20010039688 A KR 20010039688A KR 100729526 B1 KR100729526 B1 KR 100729526B1
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- stainless steel
- less
- ferritic stainless
- annealing
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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
- C21D8/04—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
- C21D8/0421—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing characterised by the working steps
- C21D8/0426—Hot rolling
-
- 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
- C21D8/04—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
- C21D8/0421—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing characterised by the working steps
- C21D8/0436—Cold 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
- C21D8/04—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
- C21D8/0447—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing characterised by the heat treatment
- C21D8/0463—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing characterised by the heat treatment following hot rolling
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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
- C22C38/001—Ferrous alloys, e.g. steel alloys containing N
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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
- C22C38/02—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
-
- 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
-
- 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
-
- 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
- C21D2211/001—Austenite
-
- 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
C | Si | Mn | Cr | Al | N | γmax(%) | ||
A | 0.052 | 0.39 | 0.38 | 16.23 | 0.003 | 0.03 | 31.1 | 본발명강 |
B | 0.047 | 0.40 | 0.25 | 16.34 | 0.002 | 0.014 | 18.4 | |
C | 0.052 | 0.42 | 0.25 | 16.38 | 0.134 | 0.025 | 18.4 | |
D | 0.044 | 0.40 | 0.23 | 16.50 | 0.063 | 0.011 | 11.4 | 비교강 |
제조조건 | |
종래방법(I) | 열간압연 → 상소둔 →냉간압연 →연속소둔 |
종래방법(II) | 열간압연 →연속소둔→냉간압연 →연속소둔 |
본발명법 | 열간압연 →연속소둔→냉간압연 →상소둔 |
Claims (2)
- 중량%로 C : 0.10%이하, Si : 1.0%이하, Mn : 1.0%이하, P : 0.040%이하, S : 0.030%이하, Cr : 15.0 ~ 20.0%, Al : 0.2%이하 그리고 N : 0.05%이하를 함유하고 나머지 Fe 및 기타 불가피하게 함유되는 불순물로 이루어진 페라이트계 스테인레스강의 제조방법에 있어서,상기와 같이 조성된 페라이트계 스테인레스강 슬라브를 열간압연하는 단계와, 상기 열간압연된 슬라브를 850 ~ 1000℃ 온도로 가열하여 10초 ~ 5분 동안 유지한 후 급냉하여 연속소둔하는 단계와, 상기 연속소둔된 열간압연판을 냉간압연하는 단계와, 상기 냉간압연판을 800 ~ 900℃온도에서 1시간 ~ 10시간 유지하여 상소둔하는 단계를 포함하는 것을 특징으로 하는 리징성이 우수한 페라이트계 스테인레스강의 제조방법.
- 제1항에 있어서,상기 페라이트계 스테인레스강 슬라브의 오스테나이트 최대 분율(max)은 15 ~ 40%인 것을 특징으로 하는 리징성이 우수한 페라이트계 스테인레스강의 제조방법.
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KR1020010039688A KR100729526B1 (ko) | 2001-07-04 | 2001-07-04 | 리징성이 우수한 페라이트계 스테인레스강의 제조방법 |
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KR1020010039688A KR100729526B1 (ko) | 2001-07-04 | 2001-07-04 | 리징성이 우수한 페라이트계 스테인레스강의 제조방법 |
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KR20030003848A KR20030003848A (ko) | 2003-01-14 |
KR100729526B1 true KR100729526B1 (ko) | 2007-06-15 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100963109B1 (ko) | 2007-11-22 | 2010-06-14 | 주식회사 포스코 | 고크롬 페라이트계 스테인리스강 |
KR101258756B1 (ko) | 2010-12-27 | 2013-04-29 | 주식회사 포스코 | 표면품질 및 내리징성이 우수한 페라이트계 스테인리스강 및 그 제조방법 |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101279052B1 (ko) * | 2009-12-23 | 2013-07-02 | 주식회사 포스코 | 내리징성이 우수한 페라이트계 스테인리스 강판 및 그 제조방법 |
KR101279051B1 (ko) * | 2009-12-28 | 2013-07-02 | 주식회사 포스코 | 페라이트계 스테인레스강 및 그 제조방법 |
CN105247082B (zh) * | 2013-04-01 | 2016-11-02 | 日立金属株式会社 | 刀具用钢的生产方法 |
WO2016092714A1 (ja) * | 2014-12-11 | 2016-06-16 | Jfeスチール株式会社 | フェライト系ステンレス鋼およびその製造方法 |
KR102326044B1 (ko) * | 2019-12-20 | 2021-11-15 | 주식회사 포스코 | 자화특성이 향상된 페라이트계 스테인리스강 및 그 제조 방법 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20000036162A (ko) * | 1996-09-16 | 2000-06-26 | 리차드 씨. 베이커 | 경중량, 고성능 진동-감쇠 시스템 |
KR20010079456A (ko) * | 2001-07-20 | 2001-08-22 | 김해용 | 영양 약식 무균포장밥의 제조법 |
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- 2001-07-04 KR KR1020010039688A patent/KR100729526B1/ko active IP Right Grant
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20000036162A (ko) * | 1996-09-16 | 2000-06-26 | 리차드 씨. 베이커 | 경중량, 고성능 진동-감쇠 시스템 |
KR20010079456A (ko) * | 2001-07-20 | 2001-08-22 | 김해용 | 영양 약식 무균포장밥의 제조법 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100963109B1 (ko) | 2007-11-22 | 2010-06-14 | 주식회사 포스코 | 고크롬 페라이트계 스테인리스강 |
KR101258756B1 (ko) | 2010-12-27 | 2013-04-29 | 주식회사 포스코 | 표면품질 및 내리징성이 우수한 페라이트계 스테인리스강 및 그 제조방법 |
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KR20030003848A (ko) | 2003-01-14 |
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