KR100415721B1 - 연속소둔 연질냉연강판 - Google Patents
연속소둔 연질냉연강판 Download PDFInfo
- Publication number
- KR100415721B1 KR100415721B1 KR10-1999-0060603A KR19990060603A KR100415721B1 KR 100415721 B1 KR100415721 B1 KR 100415721B1 KR 19990060603 A KR19990060603 A KR 19990060603A KR 100415721 B1 KR100415721 B1 KR 100415721B1
- Authority
- KR
- South Korea
- Prior art keywords
- less
- mini
- cold rolled
- rolled steel
- continuous annealing
- Prior art date
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Classifications
-
- 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
- C22C38/001—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
- C22C38/18—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
-
- 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
-
- 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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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Sheet Steel (AREA)
Abstract
Description
구분 | 화학성분(중량%) | 비고 | |||||||
C | Mn | Cr | sol.Al | N | 총트램프원소 | Al/N비율 | Cr/C비율 | ||
1 | 0.047 | 0.28 | 0.24 | 0.039 | 0.006 | 0.14 | 6.5 | 5.1 | 본발명강 |
2 | 0.038 | 0.30 | 0.30 | 0.041 | 0.005 | 0.12 | 8.2 | 7.9 | |
3 | 0.031 | 0.34 | 0.20 | 0.035 | 0.008 | 0.11 | 4.4 | 6.5 | |
4 | 0.040 | 0.24 | trace | 0.050 | 0.004 | trace | 비교강 | ||
5 | 0.052 | 0.26 | trace | 0.036 | 0.003 | trace |
구분 | 인장강도(kg/mm2) | 연신율(%) | 시효지수(kg/mm2) | 생산공정 | 비고 |
1 | 35.2 | 43 | 2.8 | 미니밀공정 | 본발명강 |
2 | 34.9 | 42 | 2.0 | ||
3 | 35.6 | 43 | 3.1 | ||
4 | 34.8 | 44 | 2.5 | 기존공정 | 비교강 |
5 | 35.1 | 43 | 2.9 |
Claims (4)
- (정정)중량%로, C:0.06%이하, Mn:0.2∼0.4%, S:0.010%이하, Sol.Al:0.030∼0.070%, 및 N:0.010%이하, Cr:0.4%이하, Cr을 제외한 트램프 원소(Cu, Ni, Mo, Sn, Sb)의 총함량이 0.15%이하, 그리고 Cr/C의 값이 4.35이상으로 조성되고, 상기 Sol. Al과 N 두원자간의 원자당량 비율인 0.52와 Al을 N으로 나눈 값의 곱(0.52*Al/N)이 2.0이상으로 조성되는 것을 특징으로 하는 연속소둔 연질냉연강판.
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Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-1999-0060603A KR100415721B1 (ko) | 1999-12-22 | 1999-12-22 | 연속소둔 연질냉연강판 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-1999-0060603A KR100415721B1 (ko) | 1999-12-22 | 1999-12-22 | 연속소둔 연질냉연강판 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20010057389A KR20010057389A (ko) | 2001-07-04 |
KR100415721B1 true KR100415721B1 (ko) | 2004-01-31 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR10-1999-0060603A KR100415721B1 (ko) | 1999-12-22 | 1999-12-22 | 연속소둔 연질냉연강판 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR100415721B1 (ko) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR19990000198A (ko) * | 1997-06-03 | 1999-01-15 | 김종진 | 미니밀(mini-mill)에 의한 35Kg/mm2급 일반구조용 열간압연강판의 제조방법 |
JPH1192829A (ja) * | 1997-09-24 | 1999-04-06 | Nkk Corp | コイル長手方向の形状に優れた軟質冷延鋼板の製造方法 |
JPH11199971A (ja) * | 1998-01-21 | 1999-07-27 | Nkk Corp | 加工性に優れた直送圧延による軟質冷延鋼板およびその製造方法 |
KR20000042192A (ko) * | 1998-12-24 | 2000-07-15 | 이구택 | 미니밀 공정을 이용한 가공용 상소둔 냉연강판의 제조방법 |
-
1999
- 1999-12-22 KR KR10-1999-0060603A patent/KR100415721B1/ko active IP Right Grant
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR19990000198A (ko) * | 1997-06-03 | 1999-01-15 | 김종진 | 미니밀(mini-mill)에 의한 35Kg/mm2급 일반구조용 열간압연강판의 제조방법 |
JPH1192829A (ja) * | 1997-09-24 | 1999-04-06 | Nkk Corp | コイル長手方向の形状に優れた軟質冷延鋼板の製造方法 |
JPH11199971A (ja) * | 1998-01-21 | 1999-07-27 | Nkk Corp | 加工性に優れた直送圧延による軟質冷延鋼板およびその製造方法 |
KR20000042192A (ko) * | 1998-12-24 | 2000-07-15 | 이구택 | 미니밀 공정을 이용한 가공용 상소둔 냉연강판의 제조방법 |
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Publication number | Publication date |
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KR20010057389A (ko) | 2001-07-04 |
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