JP2015212412A - 熱間圧延線材 - Google Patents
熱間圧延線材 Download PDFInfo
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- JP2015212412A JP2015212412A JP2015054674A JP2015054674A JP2015212412A JP 2015212412 A JP2015212412 A JP 2015212412A JP 2015054674 A JP2015054674 A JP 2015054674A JP 2015054674 A JP2015054674 A JP 2015054674A JP 2015212412 A JP2015212412 A JP 2015212412A
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- 238000005204 segregation Methods 0.000 claims abstract description 30
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000012535 impurity Substances 0.000 claims abstract description 7
- 229910052742 iron Inorganic materials 0.000 claims abstract description 6
- 238000010894 electron beam technology Methods 0.000 claims abstract description 4
- 229910052799 carbon Inorganic materials 0.000 abstract description 6
- 229910052698 phosphorus Inorganic materials 0.000 abstract description 5
- 229910052748 manganese Inorganic materials 0.000 abstract description 4
- 229910000831 Steel Inorganic materials 0.000 description 26
- 239000010959 steel Substances 0.000 description 26
- 238000005096 rolling process Methods 0.000 description 20
- 239000000463 material Substances 0.000 description 18
- 229910052739 hydrogen Inorganic materials 0.000 description 15
- 239000001257 hydrogen Substances 0.000 description 15
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 14
- 238000005098 hot rolling Methods 0.000 description 10
- 238000012360 testing method Methods 0.000 description 10
- 238000010438 heat treatment Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- 239000000203 mixture Substances 0.000 description 8
- 238000001816 cooling Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 239000002184 metal Substances 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 6
- 238000010791 quenching Methods 0.000 description 6
- 230000000171 quenching effect Effects 0.000 description 6
- 238000005496 tempering Methods 0.000 description 6
- 239000013078 crystal Substances 0.000 description 5
- 230000007423 decrease Effects 0.000 description 5
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 4
- 229910052804 chromium Inorganic materials 0.000 description 4
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
- 229910052719 titanium Inorganic materials 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 239000012779 reinforcing material Substances 0.000 description 3
- 239000002344 surface layer Substances 0.000 description 3
- 229910052720 vanadium Inorganic materials 0.000 description 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- 229910001566 austenite Inorganic materials 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000013507 mapping Methods 0.000 description 2
- 229910000734 martensite Inorganic materials 0.000 description 2
- 229910052750 molybdenum Inorganic materials 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 229910052758 niobium Inorganic materials 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000006104 solid solution Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 241000282332 Martes Species 0.000 description 1
- 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
- 239000002131 composite material Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 150000001247 metal acetylides Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 125000000896 monocarboxylic acid group Chemical group 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
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
-
- 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
- C22C38/02—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
- C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
-
- 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
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
-
- 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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/24—Ferrous alloys, e.g. steel alloys containing chromium 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
- C22C38/32—Ferrous alloys, e.g. steel alloys containing chromium with boron
-
- 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
-
- 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
- C21D8/06—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires
-
- 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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
Landscapes
- 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)
- Manufacturing & Machinery (AREA)
- Heat Treatment Of Steel (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Abstract
【解決手段】質量%で、C:0.20〜0.5%、Si:0.05〜0.3%、Mn:0.3〜1.5%、Al:0.001〜0.1%、P:0%超、0.01%以下、およびS:0%超、0.01%以下を含有し、残部が鉄および不可避不純物からなる熱間圧延線材であり、該熱間圧延線材に含まれるS量を電子線マイクロアナライザーを用いて200μm間隔で300箇所以上測定し、S量の平均値Save(質量%)に対するS量の最大値Smax(質量%)を偏析度(Smax/Save)としたとき、該偏析度が30以下である熱間圧延線材。
【選択図】なし
Description
(a)Cr:0%超、1%以下、およびB:0%超、0.01%以下の少なくとも1種、(b)Ni:0%超、0.5%以下、およびCu:0%超、0.5%以下の少なくとも1種、
(c)Ti:0%超、0.1%以下、およびV:0%超、0.5%以下の少なくとも1種、
(d)Mo:0%超、1.5%以下、
(e)Nb:0%超、0.1%以下、
等を含んでもよい。
(a)Cr:0%超、1%以下、およびB:0%超、0.01%以下の少なくとも1種、(b)Ni:0%超、0.5%以下、およびCu:0%超、0.5%以下の少なくとも1種、
(c)Ti:0%超、0.1%以下、およびV:0%超、0.5%以下の少なくとも1種、
(d)Mo:0%超、1.5%以下、
(e)Nb:0%超、0.1%以下
等を含有してもよい。
圧延歪=ln(S0/S) ・・・(1)
圧延歪=ln(S0/S) ・・・(1)
上記供試材から採取した金属組織観察用の試験片をマウントに埋め込み、光学顕微鏡で、観察倍率を400倍として金属組織を観察した。その結果、いずれの供試材も金属組織は、マルテンサイトであった。
電子線マイクロアナライザー(Electron Probe Microanalyzer;EPMA)を用い、測定元素をSとし、通常中心部で偏析を起こしやすいことから、供試材中心を含み表面に向かって元素マッピングを行った。測定は中心と表層を含み、200μm間隔で、300箇所以上測定した。特性X線のスペクトル強度に基づいてS量(質量%)を算出し、平均値Save(質量%)と最大値Smax(質量%)を求めた。S量の平均値Save(質量%)に対するS量の最大値Smax(質量%)を偏析度(Smax/Save)とし、結果を下記表2に示す。
Claims (6)
- 質量%で、
C :0.20〜0.5%、
Si:0.05〜0.3%、
Mn:0.3〜1.5%、
Al:0.001〜0.1%、
P :0%超、0.01%以下、および
S :0%超、0.01%以下を含有し、
残部が鉄および不可避不純物からなる熱間圧延線材であり、
該熱間圧延線材に含まれるS量を電子線マイクロアナライザーを用いて200μm間隔で300箇所以上測定し、S量の平均値Save(質量%)に対するS量の最大値Smax(質量%)を偏析度(Smax/Save)としたとき、
該偏析度が30以下であることを特徴とする熱間圧延線材。 - 更に、他の元素として、質量%で、
Cr:0%超、1%以下、および
B :0%超、0.01%以下の少なくとも1種を含む請求項1に記載の熱間圧延線材。 - 更に、他の元素として、質量%で、
Ni:0%超、0.5%以下、および
Cu:0%超、0.5%以下の少なくとも1種を含む請求項1または2に記載の熱間圧延線材。 - 更に、他の元素として、質量%で、
Ti:0%超、0.1%以下、および
V :0%超、0.5%以下の少なくとも1種を含む請求項1〜3のいずれかに記載の熱間圧延線材。 - 更に、他の元素として、質量%で、
Mo:0%超、1.5%以下を含む請求項1〜4のいずれかに記載の熱間圧延線材。 - 更に、他の元素として、質量%で、
Nb:0%超、0.1%以下を含む請求項1〜5のいずれかに記載の熱間圧延線材。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2015054674A JP2015212412A (ja) | 2014-04-18 | 2015-03-18 | 熱間圧延線材 |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2014086532 | 2014-04-18 | ||
JP2014086532 | 2014-04-18 | ||
JP2015054674A JP2015212412A (ja) | 2014-04-18 | 2015-03-18 | 熱間圧延線材 |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2015212412A true JP2015212412A (ja) | 2015-11-26 |
Family
ID=54323863
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2015054674A Ceased JP2015212412A (ja) | 2014-04-18 | 2015-03-18 | 熱間圧延線材 |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP3133182A4 (ja) |
JP (1) | JP2015212412A (ja) |
KR (2) | KR20160131106A (ja) |
CN (1) | CN106164316B (ja) |
BR (1) | BR112016024110A2 (ja) |
WO (1) | WO2015159650A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20180111913A (ko) | 2016-03-07 | 2018-10-11 | 신닛테츠스미킨 카부시키카이샤 | 내수소 유기 균열성이 우수한 고강도 평강선 |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017171070A1 (ja) * | 2016-03-31 | 2017-10-05 | 株式会社神戸製鋼所 | 耐硫化物応力腐食割れ性に優れた高強度熱間圧延線材 |
CN108763637B (zh) * | 2018-04-19 | 2022-06-03 | 张家港联峰钢铁研究所有限公司 | 一种热轧线材抗拉强度的计算与预判方法 |
KR102117401B1 (ko) * | 2018-08-21 | 2020-06-01 | 주식회사 포스코 | 수소취성 저항성이 우수한 고강도 선재, 이를 이용한 볼트용 강재, 이들의 제조방법 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH042720A (ja) * | 1990-04-19 | 1992-01-07 | Nippon Steel Corp | サワー環境用高強度鋼線の製造方法 |
JP2008057007A (ja) * | 2006-08-31 | 2008-03-13 | Sumitomo Metal Ind Ltd | 低合金鋼材およびその製造方法 |
JP2010202913A (ja) * | 2009-03-02 | 2010-09-16 | Nippon Steel Corp | 高強度鋼線用線材、高強度鋼線及びこれらの製造方法 |
US20120037283A1 (en) * | 2009-04-23 | 2012-02-16 | Posco | High-Strength, High-Toughness Steel Wire Rod, and Method for Manufacturing Same |
JP2013190319A (ja) * | 2012-03-14 | 2013-09-26 | Jfe Steel Corp | 鋼材の耐hic性の評価方法およびそれを利用したラインパイプ用高強度厚鋼板の製造方法 |
Family Cites Families (9)
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IN153591B (ja) * | 1979-01-24 | 1984-07-28 | Southwire Co | |
FR2731371B1 (fr) * | 1995-03-10 | 1997-04-30 | Inst Francais Du Petrole | Procede de fabrication de fils en acier - fils de forme et application a une conduite flexible |
FR2753206B1 (fr) * | 1996-09-09 | 1998-11-06 | Inst Francais Du Petrole | Procede de fabrication de fils en acier auto-trempant, fils de forme et application a une conduite flexible |
AR023265A1 (es) * | 1999-05-06 | 2002-09-04 | Sumitomo Metal Ind | Material de acero de elevada resistencia para un pozo petrolero, excelente en el craqueo de la tension de sulfuros y metodo para producir un material deacero de elevada resistencia. |
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CN100439543C (zh) * | 2006-03-24 | 2008-12-03 | 宝山钢铁股份有限公司 | 热轧超高强度马氏体钢及其制造方法 |
JP5120802B2 (ja) * | 2006-11-17 | 2013-01-16 | 独立行政法人物質・材料研究機構 | 温間圧延装置及び温間圧延方法並びに温間・冷間連続加工装置 |
CN102560047B (zh) * | 2012-02-29 | 2013-03-20 | 首钢总公司 | 一种控制高碳钢盘条晶界脆化的热轧方法 |
JP5522194B2 (ja) * | 2012-04-25 | 2014-06-18 | Jfeスチール株式会社 | 耐ssc性に優れた高強度鋼材 |
-
2015
- 2015-03-18 JP JP2015054674A patent/JP2015212412A/ja not_active Ceased
- 2015-03-23 WO PCT/JP2015/058696 patent/WO2015159650A1/ja active Application Filing
- 2015-03-23 BR BR112016024110A patent/BR112016024110A2/pt not_active Application Discontinuation
- 2015-03-23 KR KR1020167028162A patent/KR20160131106A/ko active IP Right Grant
- 2015-03-23 EP EP15780257.0A patent/EP3133182A4/en not_active Withdrawn
- 2015-03-23 CN CN201580019443.8A patent/CN106164316B/zh not_active Expired - Fee Related
- 2015-03-23 KR KR1020187028245A patent/KR20180112868A/ko active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH042720A (ja) * | 1990-04-19 | 1992-01-07 | Nippon Steel Corp | サワー環境用高強度鋼線の製造方法 |
JP2008057007A (ja) * | 2006-08-31 | 2008-03-13 | Sumitomo Metal Ind Ltd | 低合金鋼材およびその製造方法 |
JP2010202913A (ja) * | 2009-03-02 | 2010-09-16 | Nippon Steel Corp | 高強度鋼線用線材、高強度鋼線及びこれらの製造方法 |
US20120037283A1 (en) * | 2009-04-23 | 2012-02-16 | Posco | High-Strength, High-Toughness Steel Wire Rod, and Method for Manufacturing Same |
JP2013190319A (ja) * | 2012-03-14 | 2013-09-26 | Jfe Steel Corp | 鋼材の耐hic性の評価方法およびそれを利用したラインパイプ用高強度厚鋼板の製造方法 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20180111913A (ko) | 2016-03-07 | 2018-10-11 | 신닛테츠스미킨 카부시키카이샤 | 내수소 유기 균열성이 우수한 고강도 평강선 |
Also Published As
Publication number | Publication date |
---|---|
EP3133182A4 (en) | 2017-10-11 |
CN106164316A (zh) | 2016-11-23 |
EP3133182A1 (en) | 2017-02-22 |
KR20160131106A (ko) | 2016-11-15 |
BR112016024110A2 (pt) | 2017-08-15 |
WO2015159650A1 (ja) | 2015-10-22 |
CN106164316B (zh) | 2018-01-30 |
KR20180112868A (ko) | 2018-10-12 |
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