KR20030050695A - 리징성이 향상된 페라이트계 스테인레스강의 제조방법 - Google Patents
리징성이 향상된 페라이트계 스테인레스강의 제조방법 Download PDFInfo
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- KR20030050695A KR20030050695A KR1020010081201A KR20010081201A KR20030050695A KR 20030050695 A KR20030050695 A KR 20030050695A KR 1020010081201 A KR1020010081201 A KR 1020010081201A KR 20010081201 A KR20010081201 A KR 20010081201A KR 20030050695 A KR20030050695 A KR 20030050695A
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- less
- annealing
- stainless steel
- 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
- C21D8/0421—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
-
- 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
- C21D8/0468—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 between cold rolling steps
-
- 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
-
- 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
-
- 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)
- Mechanical Engineering (AREA)
- Materials 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
구 분(w%) | C | Si | Mn | Cr | Al | N | max | 비 고 | |
발명강 | A | 0.052 | 0.39 | 0.38 | 16.23 | 0.003 | 0.03 | 31.1 | P : traceS : trace |
B | 0.047 | 0.40 | 0.25 | 16.34 | 0.002 | 0.0114 | 18.4 | ||
C | 0.052 | 0.42 | 0.25 | 16.38 | 0.134 | 0.025 | 18.4 | ||
비교강 | D | 0.044 | 0.40 | 0.23 | 16.50 | 0.063 | 0.011 | 11.4 |
종래방법(Ⅰ) | 열간압연 →상소둔 →냉간압연 →연속소둔 |
종래방법(Ⅱ) | 열간압연 →연속소둔 →냉간압연 →연속소둔 |
본 발명법 | 열간압연 →냉간압연(연속냉간압연기) →상소둔 또는 연속소둔 →냉간압연(20단 냉간압연기) →연속소둔 |
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 구성된 페라이트계 스테인레스강의 제조방법에 있어서, 상기와 같이 조성된 페라이트계 스테인레스강 슬라브를 열간압연하는 단계와, 열연판을 소둔하지 않고 연속냉간압연기에서 냉간압연하는 단계와, 냉연판을 800 ~ 900℃ 온도에서 1시간 ~ 10시간 유지하여 상소둔하거나 또는 850 ~ 1000℃ 온도로 가열하여 10초 ~ 5분 동안 유지한 후 급냉하여 연속소둔하는 단계와, 냉연소둔판을 다시 20단 냉간압연기에서 냉간압연하는 단계와, 냉연판을 800 ~ 900℃ 온도에서 5초 ~ 3분 동안 연속소둔하는 단계를 포함하는 것을 특징으로 하는 리징성이 향상된 페라이트계 스테인레스강의 제조방법.
- 제1항에 있어서, 상기 페라이트계 스테인레스강 슬라브의 오스테나이트 최대 분율( max)은 15 ~ 40%인 것을 특징으로 하는 리징성이 향상된 페라이트계 스테인레스강의 제조방법.
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KR1020010081201A KR100771832B1 (ko) | 2001-12-19 | 2001-12-19 | 리징성이 향상된 페라이트계 스테인레스강의 제조방법 |
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KR1020010081201A KR100771832B1 (ko) | 2001-12-19 | 2001-12-19 | 리징성이 향상된 페라이트계 스테인레스강의 제조방법 |
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KR20030050695A true KR20030050695A (ko) | 2003-06-25 |
KR100771832B1 KR100771832B1 (ko) | 2007-10-30 |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107794356A (zh) * | 2016-09-06 | 2018-03-13 | Posco公司 | 成型性及起皱特性优异的铁素体系不锈钢的制造方法 |
EP3556888A4 (en) * | 2016-12-13 | 2019-10-23 | Posco | FERRITIC STAINLESS STEEL HAVING EXCELLENT STRIKING PROPERTIES AND EXCELLENT SURFACE QUALITY, AND PROCESS FOR PRODUCING THE SAME |
CN114746569A (zh) * | 2019-12-20 | 2022-07-12 | 株式会社Posco | 具有改善的磁化强度的铁素体不锈钢及其制造方法 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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KR101938588B1 (ko) | 2017-08-22 | 2019-01-15 | 주식회사 포스코 | 리징성이 우수한 페라이트계 스테인리스강의 제조방법 |
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US4571299A (en) * | 1983-07-21 | 1986-02-18 | Colgate-Palmolive Company | Continuous extraction apparatus |
JP3147918B2 (ja) * | 1991-04-10 | 2001-03-19 | 川崎製鉄株式会社 | 穴拡げ加工性に優れたフェライト系ステンレス鋼の冷延鋼帯の製造方法 |
KR950009169B1 (ko) * | 1993-07-02 | 1995-08-16 | 포항종합제철주식회사 | 내입계 부식성이 우수한 페라이트계 스테인레스강판의 제조방법 |
KR100328036B1 (ko) * | 1997-10-20 | 2002-04-17 | 이구택 | 페라이트계향균스테인레스강및그제조방법 |
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107794356A (zh) * | 2016-09-06 | 2018-03-13 | Posco公司 | 成型性及起皱特性优异的铁素体系不锈钢的制造方法 |
EP3556888A4 (en) * | 2016-12-13 | 2019-10-23 | Posco | FERRITIC STAINLESS STEEL HAVING EXCELLENT STRIKING PROPERTIES AND EXCELLENT SURFACE QUALITY, AND PROCESS FOR PRODUCING THE SAME |
CN114746569A (zh) * | 2019-12-20 | 2022-07-12 | 株式会社Posco | 具有改善的磁化强度的铁素体不锈钢及其制造方法 |
JP2023502232A (ja) * | 2019-12-20 | 2023-01-23 | ポスコホールディングス インコーポレーティッド | 磁化特性が向上したフェライト系ステンレス鋼及びその製造方法 |
CN114746569B (zh) * | 2019-12-20 | 2023-11-07 | 株式会社Posco | 具有改善的磁化强度的铁素体不锈钢及其制造方法 |
JP7465965B2 (ja) | 2019-12-20 | 2024-04-11 | ポスコホールディングス インコーポレーティッド | 磁化特性が向上したフェライト系ステンレス鋼板及びその製造方法 |
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