KR100627456B1 - 인장강도 80kgf/㎟급 고장력강의 제조방법 - Google Patents
인장강도 80kgf/㎟급 고장력강의 제조방법 Download PDFInfo
- Publication number
- KR100627456B1 KR100627456B1 KR1019990063060A KR19990063060A KR100627456B1 KR 100627456 B1 KR100627456 B1 KR 100627456B1 KR 1019990063060 A KR1019990063060 A KR 1019990063060A KR 19990063060 A KR19990063060 A KR 19990063060A KR 100627456 B1 KR100627456 B1 KR 100627456B1
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- Prior art keywords
- steel
- less
- present
- manufacturing
- room temperature
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Classifications
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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
- C21D8/0247—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
- C21D8/0252—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment with application of tension
-
- 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
-
- 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
- C21D8/0247—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
- 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
- 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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
-
- 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
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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 Steel (AREA)
Abstract
Description
구분 | C | Mn | Si | P | S | Ni | Cr | Mo | V | Ti | Sol,AI | B |
발명강A | 0.08 | 0.95 | 0.23 | 0.013 | 0.005 | 1.05 | 0.45 | 0.45 | 0.05 | - | 0.055 | 0.0011 |
발명강B | 0.12 | 0.98 | 0.25 | 0.012 | 0.003 | 1.00 | 0.40 | 0.48 | 0.04 | - | 0.064 | 0.0012 |
종래강1 | 0.13 | 0.91 | 0.24 | 0.014 | 0.003 | 1.05 | 0.45 | 0.45 | 0.04 | 0.012 | 0.030 | 0.0012 |
종랭강2 | 0.12 | 0.98 | 0.26 | 0.013 | 0.004 | 1.02 | 0.44 | 0.45 | 0.05 | 0.011 | 0.035 | 0.0013 |
구분 | 판두께 (mm) | 인장특성 | 충격흡수에너지 vE-40℃ (J) | |||
항복강도 (kgf/㎟) | 인장강도 (kgf/㎟) | 연신율 (%) | ||||
발명재1 | 발명강A | 25 | 77.1 | 85.4 | 27 | 235 |
발명재2 | 60 | 75.4 | 84.5 | 26 | 212 | |
발명재3 | 발명강B | 30 | 77.9 | 87.0 | 26 | 240 |
발명재4 | 63 | 76.4 | 85.2 | 25 | 217 | |
종래재1 | 종래강1 | 30 | 78.0 | 88.3 | 26 | 232 |
종래재2 | 65 | 77.1 | 85.2 | 25 | 45 | |
종래재3 | 종래강2 | 24 | 78.6 | 87.0 | 28 | 210 |
종래재4 | 60 | 77.2 | 85.4 | 26 | 47 |
Claims (1)
- 중량%로 C:0.07~0.15%, Mn:0.9~1.0%, Si:0.3%이하, Ni:1.0~1.2%, Cr:0.4~0.6%, Mo:0.4~0.6%, V:0.04~0.06%, Sol.Al:0.055~0.065%, B:0.0010~ 0.0020%, P:0.020%이하, S:0.010%이하, 잔부 Fe 및 기타 불가피한 불순물로 조성되는 강 슬라브를 1200℃ 이상에서 가열한 후 열간압연하고, 상온까지 공냉한 후 930~950℃로 재가열하여 오스테나이트화한 후 상온까지 수냉한 다음, 630~650℃의 온도범위에서 템퍼링하는 것을 특징으로 하는 인장강도 80kgf/㎟급 고장력강의 제조방법
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019990063060A KR100627456B1 (ko) | 1999-12-27 | 1999-12-27 | 인장강도 80kgf/㎟급 고장력강의 제조방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019990063060A KR100627456B1 (ko) | 1999-12-27 | 1999-12-27 | 인장강도 80kgf/㎟급 고장력강의 제조방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20010060654A KR20010060654A (ko) | 2001-07-07 |
KR100627456B1 true KR100627456B1 (ko) | 2006-09-22 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019990063060A KR100627456B1 (ko) | 1999-12-27 | 1999-12-27 | 인장강도 80kgf/㎟급 고장력강의 제조방법 |
Country Status (1)
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KR (1) | KR100627456B1 (ko) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR910003883A (ko) * | 1989-07-11 | 1991-02-28 | 우찌야 도모요시 | 자동 전원차단기 및 이것에 사용되는 릴레이와 물감지기 |
-
1999
- 1999-12-27 KR KR1019990063060A patent/KR100627456B1/ko active IP Right Grant
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR910003883A (ko) * | 1989-07-11 | 1991-02-28 | 우찌야 도모요시 | 자동 전원차단기 및 이것에 사용되는 릴레이와 물감지기 |
Non-Patent Citations (1)
Title |
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1000449800000 |
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KR20010060654A (ko) | 2001-07-07 |
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