JPH03264645A - 伸びフランジ性等にすぐれた高強度鋼板 - Google Patents
伸びフランジ性等にすぐれた高強度鋼板Info
- Publication number
- JPH03264645A JPH03264645A JP2037039A JP3703990A JPH03264645A JP H03264645 A JPH03264645 A JP H03264645A JP 2037039 A JP2037039 A JP 2037039A JP 3703990 A JP3703990 A JP 3703990A JP H03264645 A JPH03264645 A JP H03264645A
- Authority
- JP
- Japan
- Prior art keywords
- martensite
- area ratio
- bainite
- strength steel
- 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 41
- 239000010959 steel Substances 0.000 title claims abstract description 41
- 229910000734 martensite Inorganic materials 0.000 claims abstract description 45
- 229910001563 bainite Inorganic materials 0.000 claims abstract description 28
- 229910001568 polygonal ferrite Inorganic materials 0.000 claims abstract description 11
- 230000001105 regulatory effect Effects 0.000 claims abstract description 7
- 239000012535 impurity Substances 0.000 claims abstract description 6
- 229910052742 iron Inorganic materials 0.000 claims abstract description 6
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 10
- 239000002131 composite material Substances 0.000 abstract description 10
- 238000000137 annealing Methods 0.000 abstract description 4
- 238000005096 rolling process Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 12
- 239000000463 material Substances 0.000 description 8
- 229910000859 α-Fe Inorganic materials 0.000 description 6
- 238000003466 welding Methods 0.000 description 5
- 238000001816 cooling Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000000446 fuel Substances 0.000 description 2
- 238000005098 hot rolling Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910001566 austenite Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 239000010960 cold rolled steel Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000009661 fatigue test Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- -1 heinite Inorganic materials 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Heat Treatment Of Sheet Steel (AREA)
- Heat Treatment Of Steel (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2037039A JPH03264645A (ja) | 1982-03-29 | 1990-02-16 | 伸びフランジ性等にすぐれた高強度鋼板 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5190782A JPS58167750A (ja) | 1982-03-29 | 1982-03-29 | 伸びフランジ性等にすぐれた高強度鋼板 |
| JP2037039A JPH03264645A (ja) | 1982-03-29 | 1990-02-16 | 伸びフランジ性等にすぐれた高強度鋼板 |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5190782A Division JPS58167750A (ja) | 1982-03-29 | 1982-03-29 | 伸びフランジ性等にすぐれた高強度鋼板 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03264645A true JPH03264645A (ja) | 1991-11-25 |
| JPH0572460B2 JPH0572460B2 (en, 2012) | 1993-10-12 |
Family
ID=26376140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2037039A Granted JPH03264645A (ja) | 1982-03-29 | 1990-02-16 | 伸びフランジ性等にすぐれた高強度鋼板 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03264645A (en, 2012) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0657376A (ja) * | 1992-08-11 | 1994-03-01 | Kobe Steel Ltd | 加工性の良好な７３０Ｎ／ｍｍ２以上の強度を有する高強度熱延鋼板とその製造方法 |
| WO1995004838A1 (fr) * | 1993-08-04 | 1995-02-16 | Nippon Steel Corporation | Acier a resistance a la traction elevee, a resistance a la fatigue et a aptitude au soudage superieures et procede de fabrication |
| US5634988A (en) * | 1993-03-25 | 1997-06-03 | Nippon Steel Corporation | High tensile steel having excellent fatigue strength at its weld and weldability and process for producing the same |
| JP2003505604A (ja) * | 1999-07-31 | 2003-02-12 | ティッセンクルップ シュタール アクチェンゲゼルシャフト | 高強度鋼帯または鋼板およびその製造方法 |
| US7780799B2 (en) | 2003-05-21 | 2010-08-24 | Nippon Steel Corporation | Cold-rolled steel sheet having a tensile strength of 780 MPA or more, an excellent local formability and a suppressed increase in weld hardness |
| US20120241057A1 (en) * | 2009-09-30 | 2012-09-27 | Jfe Steel Corporation | Low yield ratio, high strength and high toughness steel plate and method for manufacturing the same |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4894863B2 (ja) | 2008-02-08 | 2012-03-14 | Ｊｆｅスチール株式会社 | 加工性に優れた高強度溶融亜鉛めっき鋼板およびその製造方法 |
| WO2016190370A1 (ja) * | 2015-05-26 | 2016-12-01 | 新日鐵住金株式会社 | 鋼板及びその製造方法 |
-
1990
- 1990-02-16 JP JP2037039A patent/JPH03264645A/ja active Granted
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0657376A (ja) * | 1992-08-11 | 1994-03-01 | Kobe Steel Ltd | 加工性の良好な７３０Ｎ／ｍｍ２以上の強度を有する高強度熱延鋼板とその製造方法 |
| US5634988A (en) * | 1993-03-25 | 1997-06-03 | Nippon Steel Corporation | High tensile steel having excellent fatigue strength at its weld and weldability and process for producing the same |
| WO1995004838A1 (fr) * | 1993-08-04 | 1995-02-16 | Nippon Steel Corporation | Acier a resistance a la traction elevee, a resistance a la fatigue et a aptitude au soudage superieures et procede de fabrication |
| CN1040555C (zh) * | 1993-08-04 | 1998-11-04 | 新日本制铁株式会社 | 焊接部位的疲劳强度和焊接性优良的高强度钢及其制造方法 |
| JP2003505604A (ja) * | 1999-07-31 | 2003-02-12 | ティッセンクルップ シュタール アクチェンゲゼルシャフト | 高強度鋼帯または鋼板およびその製造方法 |
| US7780799B2 (en) | 2003-05-21 | 2010-08-24 | Nippon Steel Corporation | Cold-rolled steel sheet having a tensile strength of 780 MPA or more, an excellent local formability and a suppressed increase in weld hardness |
| US20120241057A1 (en) * | 2009-09-30 | 2012-09-27 | Jfe Steel Corporation | Low yield ratio, high strength and high toughness steel plate and method for manufacturing the same |
| US8778096B2 (en) * | 2009-09-30 | 2014-07-15 | Jfe Steel Corporation | Low yield ratio, high strength and high toughness steel plate and method for manufacturing the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0572460B2 (en, 2012) | 1993-10-12 |
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