KR100453911B1 - 열간가공성이 우수한 에프이-씨알-엔아이계 스테인레스강 - Google Patents
열간가공성이 우수한 에프이-씨알-엔아이계 스테인레스강 Download PDFInfo
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- KR100453911B1 KR100453911B1 KR10-2000-0036069A KR20000036069A KR100453911B1 KR 100453911 B1 KR100453911 B1 KR 100453911B1 KR 20000036069 A KR20000036069 A KR 20000036069A KR 100453911 B1 KR100453911 B1 KR 100453911B1
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- Prior art keywords
- less
- steel
- stainless steel
- hot workability
- inclusions
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Classifications
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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
- C22C38/54—Ferrous alloys, e.g. steel alloys containing chromium with nickel with boron
-
- 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
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
-
- 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
- C22C38/02—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
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Steel (AREA)
Abstract
Description
구분 | 합금의 조성(중량%) | |||||||||||
C | Si | Mn | P | S | Cr | Ni | Ca | Al | Ti | B | Ca/Al | |
발명재1 | 0.02 | 0.50 | 0.87 | 0.023 | 0.002 | 17.5 | 10.6 | 0.0011 | 0.027 | 0.012 | 0.0007 | 0.04 |
발명재2 | 0.02 | 0.50 | 0.87 | 0.023 | 0.002 | 17.5 | 10.6 | 0.0030 | 0.014 | 0.012 | 0.0007 | 0.21 |
발명재3 | 0.02 | 0.54 | 0.64 | 0.018 | 0.002 | 17.1 | 12.1 | 0.0025 | 0.026 | 0.009 | 0.0005 | 0.09 |
발명재4 | 0.02 | 0.54 | 0.64 | 0.018 | 0.002 | 17.1 | 12.1 | 0.0031 | 0.008 | 0.009 | 0.0005 | 0.38 |
발명재5 | 0.03 | 0.55 | 0.95 | 0.020 | 0.001 | 15.2 | 14.1 | 0.0008 | 0.006 | 0.004 | 0.0004 | 0.13 |
비교재1 | 0.02 | 0.50 | 0.87 | 0.023 | 0.002 | 17.5 | 10.6 | - | 0.003 | - | 0.0009 | - |
비교재2 | 0.02 | 0.54 | 0.64 | 0.018 | 0.002 | 17.1 | 12.1 | - | 0.002 | - | 0.0005 | - |
비교재3 | 0.03 | 0.55 | 0.95 | 0.020 | 0.001 | 15.2 | 14.1 | - | - | - | 0.0006 | - |
구 분 | 단면 수축율 (%) | ||
900 (℃) | 1000(℃) | 1100(℃) | |
발명재 1 | 71.4 | 82.2 | 91.3 |
발명재 2 | 72.5 | 81.4 | 92.1 |
발명재 3 | 73.1 | 83.3 | 93.1 |
발명재 4 | 74.5 | 85.2 | 94.8 |
발명재 5 | 71.3 | 78.7 | 88.2 |
비교재 1 | 62.3 | 67.4 | 82.2 |
비교재 2 | 64.2 | 68.5 | 83.3 |
비교재 3 | 30.2 | 66.9 | 79.5 |
구분 | 실험 시편 구분 | |||||||
발명재6 | 발명재7 | 발명재8 | 발명재9 | 발명재10 | 비교재4 | 비교재5 | 비교재6 | |
확관율(%) | 72.1 | 74.6 | 79.2 | 76.3 | 82.1 | 65.3 | 68.4 | 64.3 |
구 분 | 강중에 존재하는 개재물 | |
형 상 | 개재물의 종류 | |
발명재 1 | 구형 & 괴상 | ▶구형 개재물; (Al-Ca-Mg) 산화물, (Al-Ca-Fe-Cr)산화물, (Ca-Al-Si-Fe-Cr-Ti)산화물, (Ca-[Fe-Cr])-S산화물,(Ca-Mg-Fe-Cr-Ti)-S-산화물.▶괴상 개재물; (Al-Fe-Ti-Cr)산화물,(Ti-Al-Fe-Cr-Mn)산화물.▶각형 개재물; Si-산화물, TiN.▶선형 개재물; (Fe-Cr-Mn)산화물, (Fe-Cr-Ca-Si-Al)산화물,(Si-Cr-Fe) 산화물, (Mn-Fe-Cr)S, |
발명재 2 | 구형 | |
발명재 3 | 구형&각형(미량) | |
발명재 4 | 구형 | |
발명재 5 | 구형 | |
비교재 1 | 선형&각형(미량) | |
비교재 2 | 선형&각형(미량) | |
비교재 3 | 선형&각형(미량) |
Claims (3)
- 중량 %로 C: 0.08% 이하, Si: 1.0% 이하, Mn: 2.0% 이하, P: 0.025% 이하, S: 0.015% 이하, Cr: 15.0 - 25.0%, Ni: 10.0 - 20.0%, B: 0.001% 이하 나머지 Fe와 기타 불가피한 불순물로 구성된 Fe-Cr-Ni계 합금에 Ca 또는 Al 또는 Ti 중 적어도 어느 하나 이상이 첨가되고, 상기 Ca와 Al의 첨가비 Ca/Al은 0.04 이상인 것을 특징으로 한 열간 가공성과 냉간확관율이 우수한 Fe-Cr-Ni계 스테인레스강.
- 제 1 항에 있어서, 상기 Ca의 첨가량은 0.015중량 % 이하이고, 상기 Al의 첨가량은 0.030중량 % 이하이며, 상기 Ti의 첨가량은 0.025중량 % 이하인 것을 특징으로 한 열간 가공성과 냉간확관율이 우수한 Fe-Cr-Ni계 스테인레스강.
- 삭제
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KR10-2000-0036069A KR100453911B1 (ko) | 2000-06-28 | 2000-06-28 | 열간가공성이 우수한 에프이-씨알-엔아이계 스테인레스강 |
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KR10-2000-0036069A KR100453911B1 (ko) | 2000-06-28 | 2000-06-28 | 열간가공성이 우수한 에프이-씨알-엔아이계 스테인레스강 |
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KR20020001390A KR20020001390A (ko) | 2002-01-09 |
KR100453911B1 true KR100453911B1 (ko) | 2004-10-20 |
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Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59226151A (ja) * | 1983-06-03 | 1984-12-19 | Kawasaki Steel Corp | 溶接性と熱間加工性に優れた高合金オ−ステナイト系ステンレス鋼 |
JPH0361322A (ja) * | 1989-07-28 | 1991-03-18 | Nippon Steel Corp | 伸線性ならびに冷間圧延性に優れたオーステナイト系ステンレス鋼の製造方法 |
JPH09310157A (ja) * | 1996-05-22 | 1997-12-02 | Kawasaki Steel Corp | 深絞り性に優れるオーステナイト系ステンレス熱延鋼板およびその製造方法 |
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- 2000-06-28 KR KR10-2000-0036069A patent/KR100453911B1/ko active IP Right Grant
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59226151A (ja) * | 1983-06-03 | 1984-12-19 | Kawasaki Steel Corp | 溶接性と熱間加工性に優れた高合金オ−ステナイト系ステンレス鋼 |
JPH0361322A (ja) * | 1989-07-28 | 1991-03-18 | Nippon Steel Corp | 伸線性ならびに冷間圧延性に優れたオーステナイト系ステンレス鋼の製造方法 |
JPH09310157A (ja) * | 1996-05-22 | 1997-12-02 | Kawasaki Steel Corp | 深絞り性に優れるオーステナイト系ステンレス熱延鋼板およびその製造方法 |
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