KR100544506B1 - 내황산 부식특성이 우수한 고강도 냉연강판과 그 제조방법 - Google Patents
내황산 부식특성이 우수한 고강도 냉연강판과 그 제조방법 Download PDFInfo
- Publication number
- KR100544506B1 KR100544506B1 KR1020010077965A KR20010077965A KR100544506B1 KR 100544506 B1 KR100544506 B1 KR 100544506B1 KR 1020010077965 A KR1020010077965 A KR 1020010077965A KR 20010077965 A KR20010077965 A KR 20010077965A KR 100544506 B1 KR100544506 B1 KR 100544506B1
- Authority
- KR
- South Korea
- Prior art keywords
- sulfuric acid
- corrosion resistance
- high strength
- cold rolled
- present
- 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
- C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
-
- 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
- C22C38/16—Ferrous alloys, e.g. steel alloys containing 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
- C22C38/02—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
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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)
- Heat Treatment Of Steel (AREA)
Abstract
Description
시료번호 | 화학성분 (중량 %) | ||||||||||
C | Si | Mn | P | S | Al | Cu | Co | Nb | Ti | ||
발명강 | 1 | 0.089 | 0.25 | 0.85 | 0.012 | 0.015 | 0.042 | 0.35 | 0.031 | 0.033 | 0 |
2 | 0.085 | 0.22 | 0.88 | 0.011 | 0.015 | 0.041 | 0.33 | 0.035 | 0.041 | 0 | |
3 | 0.082 | 0.25 | 0.89 | 0.011 | 0.018 | 0.045 | 0.36 | 0.044 | 0.050 | 0 | |
4 | 0.058 | 0.25 | 0.89 | 0.011 | 0.012 | 0.051 | 0.35 | 0.045 | 0.042 | 0 | |
비교강 | 1 | 0.083 | 0.22 | 0.85 | 0.012 | 0.012 | 0.045 | 0.25 | 0 | 0.041 | 0 |
2 | 0.085 | 0.23 | 0.85 | 0.013 | 0.013 | 0.042 | 0.25 | 0.033 | 0 | 0 | |
3 | 0.087 | 0.25 | 0.85 | 0.015 | 0.012 | 0.038 | 0.12 | 0.035 | 0.022 | 0 | |
4 | 0.065 | 0.25 | 0.85 | 0.053 | 0.012 | 0.039 | 0.35 | 0.026 | 0.052 | 0 | |
5 | 0.075 | 0.23 | 0.85 | 0.015 | 0.015 | 0.042 | 0.32 | 0.021 | 0 | 0.05 |
시료번호 | 기계적 성질 | 부식감량 (mg/cm2 hr) | |||
항복강도(kg/mm2) | 인장강도(kg/mm2) | 연신율(%) | |||
발명강 | 1 | 42.9 | 51.1 | 27.2 | 13.9 |
2 | 43.5 | 53.2 | 25.8 | 12.9 | |
3 | 44.3 | 54.7 | 25.5 | 14.8 | |
4 | 43.4 | 51.4 | 26.3 | 11.9 | |
비교강 | 1 | 43.9 | 52.9 | 26.1 | 31.6 |
2 | 35.8 | 43.9 | 29.5 | 13.5 | |
3 | 42.6 | 51.2 | 27.9 | 54.6 | |
4 | 43.9 | 50.8 | 30.3 | 39.8 | |
5 | 43.4 | 53.5 | 28.8 | 58.7 |
Claims (2)
- 중량%로 C:0.05-0.15%, Si:0.1-1.0%, Mn:0.5-1.5%, S:0.03%이하, P:0.02%이하, Al:0.01-0.1%, Cu:0.2-0.8%, Co:0.01-0.05% 미만, Nb:0.02-0.05%, 나머지 Fe와 기타 불가피한 불순물로 조성되는 내황산 부식특성이 우수한 고강도 냉연강판.
- 중량%로 C:0.05-0.15%, Si:0.1-1.0%, Mn:0.5-1.5%, S:0.03%이하, P:0.02%이하, Al:0.01-0.1%, Cu:0.2-0.8%, Co:0.01-0.05% 미만, Nb:0.02-0.05%, 나머지 Fe와 기타 불가피한 불순물로 조성되는 열연판을 40-85%의 압하율로 냉간압연을 하여 750-850oC 온도에서 10초 이상 유지하는 연속소둔처리하는 것을 포함하여 이루어지는 내황산 부식특성이 우수한 고강도 냉연강판의 제조방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020010077965A KR100544506B1 (ko) | 2001-12-10 | 2001-12-10 | 내황산 부식특성이 우수한 고강도 냉연강판과 그 제조방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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KR1020010077965A KR100544506B1 (ko) | 2001-12-10 | 2001-12-10 | 내황산 부식특성이 우수한 고강도 냉연강판과 그 제조방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20030047469A KR20030047469A (ko) | 2003-06-18 |
KR100544506B1 true KR100544506B1 (ko) | 2006-01-24 |
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KR1020010077965A KR100544506B1 (ko) | 2001-12-10 | 2001-12-10 | 내황산 부식특성이 우수한 고강도 냉연강판과 그 제조방법 |
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Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5047180B2 (ja) * | 2005-10-25 | 2012-10-10 | ポスコ | 耐食性に優れた自動車マフラー用鋼板及びその製造方法 |
KR102045881B1 (ko) | 2016-09-28 | 2019-11-19 | 주식회사 포스코 | 강판 표면처리용 용액 조성물 및 이를 이용하여 표면처리된 강판 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56133449A (en) * | 1980-03-19 | 1981-10-19 | Sumitomo Metal Ind Ltd | Damping steel plate for working and its manufacture |
JPH0250916A (ja) * | 1988-08-11 | 1990-02-20 | Nippon Steel Corp | 細粒化組織の低合金高張力シームレス鋼管の製造法 |
KR20000043763A (ko) * | 1998-12-29 | 2000-07-15 | 이구택 | 내황산부식성이 우수한 냉연강판 및 그 제조방법 |
KR20010109931A (ko) * | 2000-06-05 | 2001-12-12 | 이구택 | 내황산 부식특성이 우수한 냉연강판 |
-
2001
- 2001-12-10 KR KR1020010077965A patent/KR100544506B1/ko active IP Right Grant
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56133449A (en) * | 1980-03-19 | 1981-10-19 | Sumitomo Metal Ind Ltd | Damping steel plate for working and its manufacture |
JPH0250916A (ja) * | 1988-08-11 | 1990-02-20 | Nippon Steel Corp | 細粒化組織の低合金高張力シームレス鋼管の製造法 |
KR20000043763A (ko) * | 1998-12-29 | 2000-07-15 | 이구택 | 내황산부식성이 우수한 냉연강판 및 그 제조방법 |
KR20010109931A (ko) * | 2000-06-05 | 2001-12-12 | 이구택 | 내황산 부식특성이 우수한 냉연강판 |
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Publication number | Publication date |
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KR20030047469A (ko) | 2003-06-18 |
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