JP5487683B2 - 強度−伸びバランスに優れた高靭性高張力鋼板およびその製造方法 - Google Patents
強度−伸びバランスに優れた高靭性高張力鋼板およびその製造方法 Download PDFInfo
- Publication number
- JP5487683B2 JP5487683B2 JP2009087050A JP2009087050A JP5487683B2 JP 5487683 B2 JP5487683 B2 JP 5487683B2 JP 2009087050 A JP2009087050 A JP 2009087050A JP 2009087050 A JP2009087050 A JP 2009087050A JP 5487683 B2 JP5487683 B2 JP 5487683B2
- Authority
- JP
- Japan
- Prior art keywords
- less
- ferrite
- temperature
- steel sheet
- strength
- 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.)
- Active
Links
- 229910000831 Steel Inorganic materials 0.000 title claims description 96
- 239000010959 steel Substances 0.000 title claims description 96
- 238000004519 manufacturing process Methods 0.000 title claims description 18
- 238000001816 cooling Methods 0.000 claims description 69
- 229910000859 α-Fe Inorganic materials 0.000 claims description 49
- 238000010438 heat treatment Methods 0.000 claims description 27
- 229910001568 polygonal ferrite Inorganic materials 0.000 claims description 23
- 238000005096 rolling process Methods 0.000 claims description 22
- 229910001563 bainite Inorganic materials 0.000 claims description 19
- 238000009826 distribution Methods 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 18
- 230000006698 induction Effects 0.000 claims description 13
- 239000000203 mixture Substances 0.000 claims description 10
- 229910052750 molybdenum Inorganic materials 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 9
- 230000009467 reduction Effects 0.000 claims description 9
- 229910052804 chromium Inorganic materials 0.000 claims description 8
- 229910052759 nickel Inorganic materials 0.000 claims description 8
- 238000005496 tempering Methods 0.000 claims description 8
- 229910052802 copper Inorganic materials 0.000 claims description 7
- 238000005098 hot rolling Methods 0.000 claims description 7
- 229910052758 niobium Inorganic materials 0.000 claims description 7
- 230000001186 cumulative effect Effects 0.000 claims description 6
- 229910052720 vanadium Inorganic materials 0.000 claims description 6
- 239000012535 impurity Substances 0.000 claims description 4
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 229910052748 manganese Inorganic materials 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 claims description 3
- 229910052719 titanium Inorganic materials 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 2
- 239000002344 surface layer Substances 0.000 description 20
- 230000007423 decrease Effects 0.000 description 13
- 239000010953 base metal Substances 0.000 description 11
- 230000000694 effects Effects 0.000 description 11
- 239000000463 material Substances 0.000 description 11
- 239000010410 layer Substances 0.000 description 10
- 230000009466 transformation Effects 0.000 description 7
- 238000009864 tensile test Methods 0.000 description 6
- 229910001566 austenite Inorganic materials 0.000 description 5
- 239000013078 crystal Substances 0.000 description 5
- 230000003247 decreasing effect Effects 0.000 description 5
- 238000001556 precipitation Methods 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 230000003631 expected effect Effects 0.000 description 3
- 229910001562 pearlite Inorganic materials 0.000 description 3
- 238000010791 quenching Methods 0.000 description 3
- 230000000171 quenching effect Effects 0.000 description 3
- 238000007670 refining Methods 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 238000005728 strengthening Methods 0.000 description 3
- 229910052796 boron Inorganic materials 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 2
- 229910000734 martensite Inorganic materials 0.000 description 2
- 238000000879 optical micrograph Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 229910052761 rare earth metal Inorganic materials 0.000 description 2
- 150000002910 rare earth metals Chemical class 0.000 description 2
- 238000001953 recrystallisation Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000012935 Averaging Methods 0.000 description 1
- 229910001035 Soft ferrite Inorganic materials 0.000 description 1
- 229910000794 TRIP steel Inorganic materials 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000009749 continuous casting Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 230000006355 external stress Effects 0.000 description 1
- 238000010191 image analysis Methods 0.000 description 1
- 238000009863 impact test Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000001247 metal acetylides Chemical class 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000002436 steel type Substances 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- RMLPZKRPSQVRAB-UHFFFAOYSA-N tris(3-methylphenyl) phosphate Chemical compound CC1=CC=CC(OP(=O)(OC=2C=C(C)C=CC=2)OC=2C=C(C)C=CC=2)=C1 RMLPZKRPSQVRAB-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Landscapes
- Heat Treatment Of Steel (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009087050A JP5487683B2 (ja) | 2009-03-31 | 2009-03-31 | 強度−伸びバランスに優れた高靭性高張力鋼板およびその製造方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009087050A JP5487683B2 (ja) | 2009-03-31 | 2009-03-31 | 強度−伸びバランスに優れた高靭性高張力鋼板およびその製造方法 |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2010236047A JP2010236047A (ja) | 2010-10-21 |
JP2010236047A5 JP2010236047A5 (pl) | 2012-03-01 |
JP5487683B2 true JP5487683B2 (ja) | 2014-05-07 |
Family
ID=43090649
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2009087050A Active JP5487683B2 (ja) | 2009-03-31 | 2009-03-31 | 強度−伸びバランスに優れた高靭性高張力鋼板およびその製造方法 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP5487683B2 (pl) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5849609B2 (ja) * | 2010-10-28 | 2016-01-27 | Jfeスチール株式会社 | 高圧水素貯蔵用鋼材 |
WO2012133872A1 (ja) * | 2011-03-28 | 2012-10-04 | Jfeスチール株式会社 | 板厚方向の耐疲労特性に優れた厚鋼板およびその製造方法、その厚鋼板を用いた隅肉溶接継手 |
JP5906868B2 (ja) * | 2011-03-28 | 2016-04-20 | Jfeスチール株式会社 | 板厚方向の耐疲労特性に優れた厚鋼板およびその製造方法 |
JP5751012B2 (ja) * | 2011-05-24 | 2015-07-22 | Jfeスチール株式会社 | 耐圧潰性および耐サワー性に優れた高強度ラインパイプの製造方法 |
JP5751013B2 (ja) * | 2011-05-24 | 2015-07-22 | Jfeスチール株式会社 | 耐圧潰性および耐サワー性に優れた高強度ラインパイプの製造方法 |
JP5811591B2 (ja) * | 2011-05-24 | 2015-11-11 | Jfeスチール株式会社 | 耐圧潰性および溶接熱影響部靱性に優れた高強度ラインパイプ及びその製造方法 |
JP6048436B2 (ja) * | 2014-03-28 | 2016-12-21 | Jfeスチール株式会社 | 調質高張力厚鋼板及びその製造方法 |
CN104894473A (zh) * | 2015-06-18 | 2015-09-09 | 武汉钢铁(集团)公司 | 厚度≥120mm的热套容器钢及其生产方法 |
CN114411041A (zh) * | 2021-12-02 | 2022-04-29 | 安阳钢铁股份有限公司 | 一种公路护栏用800MPa级高强度耐候钢的生产方法 |
CN115717219B (zh) * | 2022-11-26 | 2024-02-27 | 南阳汉冶特钢有限公司 | 一种水电工程用高强钢q610cf及其生产方法 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07242937A (ja) * | 1994-03-04 | 1995-09-19 | Kawasaki Steel Corp | 板厚方向の硬度むらの少ない非調質高張力鋼板の製造方法 |
JP2005298962A (ja) * | 2004-03-16 | 2005-10-27 | Jfe Steel Kk | 加工性に優れた高張力鋼板の製造方法 |
JP2007197823A (ja) * | 2005-12-28 | 2007-08-09 | Jfe Steel Kk | 低降伏比550MPa級高張力厚鋼板およびその製造方法 |
JP5082475B2 (ja) * | 2007-02-02 | 2012-11-28 | Jfeスチール株式会社 | 強度−伸びバランスに優れた高靭性高張力鋼板の製造方法 |
JP5082500B2 (ja) * | 2007-02-27 | 2012-11-28 | Jfeスチール株式会社 | 強度−伸びバランスに優れた高靭性高張力鋼板の製造方法 |
-
2009
- 2009-03-31 JP JP2009087050A patent/JP5487683B2/ja active Active
Also Published As
Publication number | Publication date |
---|---|
JP2010236047A (ja) | 2010-10-21 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5487682B2 (ja) | 強度−伸びバランスに優れた高靭性高張力鋼板およびその製造方法 | |
JP5487683B2 (ja) | 強度−伸びバランスに優れた高靭性高張力鋼板およびその製造方法 | |
JP5573265B2 (ja) | 引張強度590MPa以上の延靭性に優れた高強度厚鋼板およびその製造方法 | |
JP5029748B2 (ja) | 靭性に優れた高強度熱延鋼板およびその製造方法 | |
JP5924058B2 (ja) | 溶接熱影響部の低温靭性に優れた高張力鋼板およびその製造方法 | |
RU2502820C1 (ru) | Толстолистовая сталь, характеризующаяся низким соотношением между пределом текучести и пределом прочности, высокой прочностью и высоким равномерным относительным удлинением, и способ ее изготовления | |
JP5655984B2 (ja) | H形鋼及びその製造方法 | |
JP5348386B2 (ja) | 低降伏比かつ耐脆性亀裂発生特性に優れた厚肉高張力鋼板およびその製造方法 | |
JP5042914B2 (ja) | 高強度鋼およびその製造方法 | |
JP4858221B2 (ja) | 耐延性き裂発生特性に優れる高張力鋼材 | |
JP6252291B2 (ja) | 鋼板及びその製造方法 | |
JP7045459B2 (ja) | 低温での耐破壊特性に優れた極地環境用高強度鋼材及びその製造方法 | |
JP6725020B2 (ja) | バルブプレートおよびバルブプレートの製造方法 | |
JP2013104124A (ja) | 曲げ加工性に優れた直接焼入れ焼戻し型高張力鋼板およびその製造方法 | |
JP6492862B2 (ja) | 低温用厚鋼板及びその製造方法 | |
JPWO2014175122A1 (ja) | H形鋼及びその製造方法 | |
JP2022548144A (ja) | 低温衝撃靭性に優れた高強度極厚物鋼材及びその製造方法 | |
JP6094139B2 (ja) | 強度−伸びバランスに優れた高張力鋼板およびその製造方法 | |
JP6086090B2 (ja) | 溶接熱影響部靭性に優れた非調質低降伏比高張力厚鋼板およびその製造方法 | |
JP2011214053A (ja) | 超大入熱溶接部靭性に優れた低降伏比建築構造用厚鋼板およびその製造方法 | |
JP2009041073A (ja) | 溶接部からの延性き裂発生に対する抵抗性に優れる高張力鋼溶接継手およびその製造方法 | |
JP5200600B2 (ja) | 高強度低降伏比鋼材の製造方法 | |
JP2007119857A (ja) | 耐疲労き裂伝播特性に優れた高靭性鋼材 | |
JPWO2019050010A1 (ja) | 鋼板およびその製造方法 | |
JP5747398B2 (ja) | 高強度鋼 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20120113 |
|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20120113 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20131022 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20131029 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20131205 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20140128 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20140210 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 5487683 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |