JPS63190117A - 直接焼入れ法による引張強さ７０Ｋｇｆ／ｍｍ２以上，降伏比９０％以下の高靭性低降伏比極厚高張力鋼板の製造方法 - Google Patents
直接焼入れ法による引張強さ７０Ｋｇｆ／ｍｍ２以上，降伏比９０％以下の高靭性低降伏比極厚高張力鋼板の製造方法Info
- Publication number
- JPS63190117A JPS63190117A JP2050587A JP2050587A JPS63190117A JP S63190117 A JPS63190117 A JP S63190117A JP 2050587 A JP2050587 A JP 2050587A JP 2050587 A JP2050587 A JP 2050587A JP S63190117 A JPS63190117 A JP S63190117A
- Authority
- JP
- Japan
- Prior art keywords
- steel
- steel plate
- yield ratio
- toughness
- less
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 61
- 239000010959 steel Substances 0.000 title claims abstract description 61
- 238000010791 quenching Methods 0.000 title claims abstract description 23
- 230000000171 quenching effect Effects 0.000 title claims abstract description 23
- 238000004519 manufacturing process Methods 0.000 title claims description 9
- 238000000034 method Methods 0.000 title claims description 8
- 238000005096 rolling process Methods 0.000 claims abstract description 26
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 9
- 238000010438 heat treatment Methods 0.000 claims abstract description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 3
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 3
- 229910052720 vanadium Inorganic materials 0.000 claims abstract description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 2
- 239000000956 alloy Substances 0.000 claims description 2
- 238000005098 hot rolling Methods 0.000 claims description 2
- 229910052750 molybdenum Inorganic materials 0.000 claims description 2
- 238000009826 distribution Methods 0.000 abstract description 2
- 230000001105 regulatory effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 18
- 229910001566 austenite Inorganic materials 0.000 description 8
- 239000000203 mixture Substances 0.000 description 8
- 239000000126 substance Substances 0.000 description 6
- 238000005496 tempering Methods 0.000 description 5
- 230000006866 deterioration Effects 0.000 description 4
- 229910000734 martensite Inorganic materials 0.000 description 4
- 238000005336 cracking Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000002244 precipitate Substances 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 229910000859 α-Fe Inorganic materials 0.000 description 2
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 150000001247 metal acetylides Chemical class 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 238000004881 precipitation hardening Methods 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Steel (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2050587A JPS63190117A (ja) | 1987-02-02 | 1987-02-02 | 直接焼入れ法による引張強さ７０Ｋｇｆ／ｍｍ２以上，降伏比９０％以下の高靭性低降伏比極厚高張力鋼板の製造方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2050587A JPS63190117A (ja) | 1987-02-02 | 1987-02-02 | 直接焼入れ法による引張強さ７０Ｋｇｆ／ｍｍ２以上，降伏比９０％以下の高靭性低降伏比極厚高張力鋼板の製造方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63190117A true JPS63190117A (ja) | 1988-08-05 |
| JPH0579728B2 JPH0579728B2 (enrdf_load_stackoverflow) | 1993-11-04 |
Family
ID=12029017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2050587A Granted JPS63190117A (ja) | 1987-02-02 | 1987-02-02 | 直接焼入れ法による引張強さ７０Ｋｇｆ／ｍｍ２以上，降伏比９０％以下の高靭性低降伏比極厚高張力鋼板の製造方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63190117A (enrdf_load_stackoverflow) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02270913A (ja) * | 1989-04-11 | 1990-11-06 | Kawasaki Steel Corp | 低降伏比高靱性高張力鋼板の製造方法 |
| JP2000160279A (ja) * | 1998-11-30 | 2000-06-13 | Ishikawajima Harima Heavy Ind Co Ltd | 耐衝撃貫通特性に優れた鋼およびその製造方法 |
| WO2010119989A1 (ja) * | 2009-04-17 | 2010-10-21 | 新日本製鐵株式会社 | 低温靭性の優れた高生産型７８０ＭＰａ級高張力鋼板とその製造方法 |
| EP2360283A4 (en) * | 2008-04-09 | 2011-08-24 | Nippon Steel Corp | METHOD FOR PRODUCING HIGH-FREEST 780MPA STEEL PLATES WITH EXCELLENT LOW-TEMPERATURE STRENGTH |
| CN103710640A (zh) * | 2013-12-30 | 2014-04-09 | 钢铁研究总院 | 一种经济节约型调质处理690MPa级高强高韧钢板 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6148517A (ja) * | 1984-08-10 | 1986-03-10 | Nippon Kokan Kk <Nkk> | 抗張力６０Ｋｇ／ｍｍ↑２以上の高張力鋼の製造方法 |
-
1987
- 1987-02-02 JP JP2050587A patent/JPS63190117A/ja active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6148517A (ja) * | 1984-08-10 | 1986-03-10 | Nippon Kokan Kk <Nkk> | 抗張力６０Ｋｇ／ｍｍ↑２以上の高張力鋼の製造方法 |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02270913A (ja) * | 1989-04-11 | 1990-11-06 | Kawasaki Steel Corp | 低降伏比高靱性高張力鋼板の製造方法 |
| JP2000160279A (ja) * | 1998-11-30 | 2000-06-13 | Ishikawajima Harima Heavy Ind Co Ltd | 耐衝撃貫通特性に優れた鋼およびその製造方法 |
| EP2360283A4 (en) * | 2008-04-09 | 2011-08-24 | Nippon Steel Corp | METHOD FOR PRODUCING HIGH-FREEST 780MPA STEEL PLATES WITH EXCELLENT LOW-TEMPERATURE STRENGTH |
| WO2010119989A1 (ja) * | 2009-04-17 | 2010-10-21 | 新日本製鐵株式会社 | 低温靭性の優れた高生産型７８０ＭＰａ級高張力鋼板とその製造方法 |
| JP4842402B2 (ja) * | 2009-04-17 | 2011-12-21 | 新日本製鐵株式会社 | 低温靭性の優れた高生産型７８０ＭＰａ級高張力鋼板の製造方法 |
| CN103710640A (zh) * | 2013-12-30 | 2014-04-09 | 钢铁研究总院 | 一种经济节约型调质处理690MPa级高强高韧钢板 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0579728B2 (enrdf_load_stackoverflow) | 1993-11-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |