KR20030055007A - 페라이트계 스테인리스강의 제조방법 - Google Patents
페라이트계 스테인리스강의 제조방법 Download PDFInfo
- Publication number
- KR20030055007A KR20030055007A KR1020010085448A KR20010085448A KR20030055007A KR 20030055007 A KR20030055007 A KR 20030055007A KR 1020010085448 A KR1020010085448 A KR 1020010085448A KR 20010085448 A KR20010085448 A KR 20010085448A KR 20030055007 A KR20030055007 A KR 20030055007A
- Authority
- KR
- South Korea
- Prior art keywords
- stainless steel
- less
- heat treatment
- ferritic stainless
- hot
- Prior art date
Links
Classifications
-
- 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
-
- 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
- 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
-
- 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
- C22C38/18—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
- C21D2211/005—Ferrite
Abstract
Description
성분 | Cr | C+N | Si | Mn | P | S |
중량% | 17 | 0.11 | 0.3 | 0.4 | 0.028 | 0.0022 |
구 분 | 열연소둔열처리온도(℃) | 냉연연속소둔열처리온도(℃) | 냉간압연특성 | 연신율(%) | 무게감량(g/m2) | |
비교예 | 1 | 750 | 750 | 불량 | 28.1 | 121 |
비교예 | 2 | 750 | 780 | 불량 | 28.2 | 142 |
비교예 | 3 | 750 | 810 | 불량 | 29.5 | 174 |
비교예 | 4 | 750 | 840 | 불량 | 29.5 | 365 |
비교예 | 5 | 750 | 870 | 불량 | 28.1 | 1000 |
비교예 | 6 | 780 | 750 | 불량 | 28.0 | 121 |
비교예 | 7 | 780 | 780 | 불량 | 28.0 | 142 |
비교예 | 8 | 780 | 810 | 불량 | 29.5 | 174 |
비교예 | 9 | 780 | 840 | 불량 | 29.5 | 365 |
비교예 | 10 | 780 | 870 | 불량 | 28.1 | 1000 |
비교예 | 11 | 810 | 750 | 양호 | 28.0 | 121 |
비교예 | 12 | 810 | 780 | 양호 | 28.0 | 142 |
발명예 | 13 | 810 | 810 | 양호 | 29.5 | 174 |
비교예 | 14 | 810 | 850 | 양호 | 29.5 | 600 |
비교예 | 15 | 810 | 870 | 양호 | 28.0 | 1000 |
비교예 | 16 | 840 | 750 | 양호 | 28.1 | 121 |
비교예 | 17 | 840 | 780 | 양호 | 28.0 | 142 |
발명예 | 18 | 840 | 810 | 양호 | 29.5 | 174 |
발명예 | 19 | 840 | 840 | 양호 | 29.5 | 320 |
비교예 | 20 | 840 | 870 | 양호 | 28.0 | 1000 |
Claims (2)
- 중량%로 C+N:0.15%이하, Si:0.5%이하, Mn:0.5%이하, P:0.03%이하, S:0.004%이하, Cr:14~20%, 기타 Fe 및 불가피한 불순물로 이루어진 통상의 성분을 갖는 페라이트계 스테인리스강을 통상의 방법으로 열간압연한 다음, 810oC ~ 840oC 범위에서 24~ 48시간 동안 열연 소둔 열처리를 하고, 이후 통상의 방법으로 냉간압연한 다음, 810oC ~ 840oC 범위에서 냉연 연속 소둔 열처리하는 것을 특징으로 하는 페라이트계 스테인리스강의 제조방법.
- 제1항에 있어서, 상기 냉연 연속소둔열처리온도는 반드시 열연 소둔 열처리온도에 비해서 같거나 낮은 온도조건을 설정하는 것을 특징으로 하는 페라이트계 스테인리스강의 제조방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020010085448A KR100570891B1 (ko) | 2001-12-26 | 2001-12-26 | 페라이트계 스테인리스강의 제조방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020010085448A KR100570891B1 (ko) | 2001-12-26 | 2001-12-26 | 페라이트계 스테인리스강의 제조방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20030055007A true KR20030055007A (ko) | 2003-07-02 |
KR100570891B1 KR100570891B1 (ko) | 2006-04-12 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020010085448A KR100570891B1 (ko) | 2001-12-26 | 2001-12-26 | 페라이트계 스테인리스강의 제조방법 |
Country Status (1)
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KR (1) | KR100570891B1 (ko) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1498508A1 (en) * | 2003-07-17 | 2005-01-19 | Sumitomo Metal Industries, Ltd. | Stainless steel and stainless steel pipe having resistance to carburization and coking |
KR100706526B1 (ko) * | 2005-12-23 | 2007-04-12 | 주식회사 포스코 | 성형성이 개선된 439 스테인레스강의 제조방법 |
KR101696104B1 (ko) * | 2015-12-01 | 2017-01-13 | 주식회사 포스코 | 페라이트계 스테인리스강의 열처리 및 산세 방법 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100354213B1 (ko) * | 1998-12-24 | 2002-11-18 | 주식회사 포스코 | 냉간가공성이 우수한 페라이트계 430 스테인레스 선재의 제조방법 |
-
2001
- 2001-12-26 KR KR1020010085448A patent/KR100570891B1/ko active IP Right Grant
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1498508A1 (en) * | 2003-07-17 | 2005-01-19 | Sumitomo Metal Industries, Ltd. | Stainless steel and stainless steel pipe having resistance to carburization and coking |
KR100706526B1 (ko) * | 2005-12-23 | 2007-04-12 | 주식회사 포스코 | 성형성이 개선된 439 스테인레스강의 제조방법 |
KR101696104B1 (ko) * | 2015-12-01 | 2017-01-13 | 주식회사 포스코 | 페라이트계 스테인리스강의 열처리 및 산세 방법 |
Also Published As
Publication number | Publication date |
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KR100570891B1 (ko) | 2006-04-12 |
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