JP4824143B2 - 高強度鋼管、高強度鋼管用鋼板、及び、それらの製造方法 - Google Patents
高強度鋼管、高強度鋼管用鋼板、及び、それらの製造方法 Download PDFInfo
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- JP4824143B2 JP4824143B2 JP2011506927A JP2011506927A JP4824143B2 JP 4824143 B2 JP4824143 B2 JP 4824143B2 JP 2011506927 A JP2011506927 A JP 2011506927A JP 2011506927 A JP2011506927 A JP 2011506927A JP 4824143 B2 JP4824143 B2 JP 4824143B2
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/08—Making tubes with welded or soldered seams
- B21C37/0815—Making tubes with welded or soldered seams without continuous longitudinal movement of the sheet during the bending operation
-
- 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
- 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
- C21D9/08—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes
- C21D9/085—Cooling or quenching
-
- 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
- C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with 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
- C22C38/40—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
- C22C38/48—Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum
-
- 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
- C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel with 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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese
-
- 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
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/002—Bainite
-
- 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
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/005—Ferrite
-
- 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
- C21D8/10—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies
Description
また、ISO3183の条件を満たす鋼管としては、製品の品質管理の観点から、丸棒試験片を用いて測定した鋼管の周方向の降伏比が0.90以下である必要がある。
ここで、%C、%Si、%Mn、%Cu、%Ni、%Cr、%Mo、及び、%Vは、それぞれ、C、Si、Mn、Cu、Ni、Cr、Mo及びVの含有量(質量%)である。以下に説明する選択元素、Cu、Ni、Cr、Mo、及び/又は、Vを意図的に添加しない場合は、添加しない元素に対応する変数を0として計算する。
ESSP=(Ca)〔1−124(O)〕/1.25S ・・・(2)
2 試験片
3 試験片(丸棒試験片)
Claims (5)
- 鋼板を冷間で成型した後、シーム溶接して製造された鋼管であって、
(i)前記鋼板が、質量%で、
C :0.06〜0.10%、
Mn:1.20〜2.50%、
Nb:0.01〜0.10%、
Ti:0.005〜0.03%
を含有し、
Si:0.50%以下、
P :0.03%以下、
S :0.01%以下、
Al:0.10%以下、
N :0.008%以下
に制限し、
%C、%Si、%Mn、%Cu、%Ni、%Cr、%Mo及び%VをそれぞれC、Si、Mn、Cu、Ni、Cr、Mo、Vの含有量とした場合に、
Pcm=%C+%Si/30+%Mn/20+%Cu/20+%Ni/60+%Cr/20+%Mo/15+%V/10
により算出される溶接割れ感受性組成Pcmが0.20以下であり、残部が鉄及び不可避的不純物からなり、金属組織がベイナイトとフェライトとからなり、前記フェライトの面積率が10%超〜30%であり、かつ、
(ii)前記鋼板の板厚tと前記鋼管の外径Dとの比t/Dが0.030以下であり、丸棒試験片を用いて測定した前記鋼管の周方向の降伏比が0.90以下である、
ことを特徴とする高強度鋼管。 - 質量%で、
Ni:0.30%以下、
Mo:0.50%以下、
Cr:1.00%以下、
Cu:1.00%以下、
V:0.10%以下、
Ca:0.01%以下、
REM:0.02%以下、
Mg:0.006%以下
の1種以上を含有する
ことを特徴とする請求項1に記載の高強度鋼管。 - 請求項1又は2に記載の鋼管の製造に用いられ、
降伏点伸びが0.5%以上である
ことを特徴とする高強度鋼管用鋼板。 - 請求項3に記載の高強度鋼管用鋼板の製造方法であって、
鋼片をオーステナイト域に再加熱し、再結晶域で粗圧延を行い、その後、Ar3点以上900℃以下の未再結晶温度域で累積圧下率50%以上の仕上圧延を行い、空冷して、Ar3−50℃〜Ar3−5℃の範囲内の温度から、5〜50℃/sの冷却速度で加速冷却を行い、400℃以上で該加速冷却を停止する
ことを特徴とする高強度鋼管用鋼板の製造方法。 - 請求項1又は2に記載の高強度鋼管の製造方法であって、
前記鋼板を冷間で円筒状に成型し、シーム部をアーク溶接し、その後、0.5%〜1.5%未満の拡管率で拡管を行い、前記鋼板の板厚tと鋼管の外径Dとの比t/Dを0.030以下にする
ことを特徴とする高強度鋼管の製造方法。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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PCT/JP2009/005263 WO2011042936A1 (ja) | 2009-10-08 | 2009-10-08 | 高強度鋼管、高強度鋼管用鋼板、及び、それらの製造方法 |
Publications (2)
Publication Number | Publication Date |
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JP4824143B2 true JP4824143B2 (ja) | 2011-11-30 |
JPWO2011042936A1 JPWO2011042936A1 (ja) | 2013-02-28 |
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JP2011506927A Active JP4824143B2 (ja) | 2009-10-08 | 2009-10-08 | 高強度鋼管、高強度鋼管用鋼板、及び、それらの製造方法 |
Country Status (3)
Country | Link |
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JP (1) | JP4824143B2 (ja) |
CN (1) | CN102549186B (ja) |
WO (1) | WO2011042936A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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KR20160080282A (ko) * | 2014-12-26 | 2016-07-08 | 주식회사 포스코 | 유정용 열연강판, 이의 제조 방법 및 이에 의해 제조된 강관의 제조 방법 |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5786351B2 (ja) * | 2011-02-15 | 2015-09-30 | Jfeスチール株式会社 | 耐コラプス性能の優れたラインパイプ用鋼管 |
CN102888571B (zh) * | 2012-10-26 | 2014-05-21 | 江苏省沙钢钢铁研究院有限公司 | 一种690MPa级低焊接裂纹敏感性钢及其制造方法 |
CN108603266B (zh) * | 2016-01-29 | 2020-03-24 | 杰富意钢铁株式会社 | 高强度高韧性钢管用钢板及其制造方法 |
CN105803325B (zh) * | 2016-04-28 | 2017-10-27 | 江阴兴澄特种钢铁有限公司 | 一种低裂纹敏感性低屈强比特厚钢板及其制备方法 |
CN110312814B (zh) * | 2017-02-17 | 2021-10-01 | 杰富意钢铁株式会社 | 高强度热轧钢板及其制造方法 |
KR102031451B1 (ko) * | 2017-12-24 | 2019-10-11 | 주식회사 포스코 | 저온인성이 우수한 저항복비 고강도 강관용 강재 및 그 제조방법 |
CN112522622B (zh) * | 2020-11-30 | 2022-02-25 | 钢铁研究总院 | 一种高钢级油井管及其制备方法 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006106591A1 (ja) * | 2005-04-04 | 2006-10-12 | Nippon Steel Corporation | 延性破壊特性に優れた高強度鋼板及び高強度溶接鋼管並びにそれらの製造方法 |
JP2006283147A (ja) * | 2005-04-01 | 2006-10-19 | Nippon Steel Corp | 時効後の変形特性に優れたパイプライン用高強度鋼管およびその製造方法 |
JP2008248382A (ja) * | 2007-03-05 | 2008-10-16 | Nippon Steel Corp | 脆性き裂伝播停止特性に優れた厚手高強度鋼板およびその製造方法 |
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2009
- 2009-10-08 JP JP2011506927A patent/JP4824143B2/ja active Active
- 2009-10-08 CN CN200980161795.1A patent/CN102549186B/zh active Active
- 2009-10-08 WO PCT/JP2009/005263 patent/WO2011042936A1/ja active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006283147A (ja) * | 2005-04-01 | 2006-10-19 | Nippon Steel Corp | 時効後の変形特性に優れたパイプライン用高強度鋼管およびその製造方法 |
WO2006106591A1 (ja) * | 2005-04-04 | 2006-10-12 | Nippon Steel Corporation | 延性破壊特性に優れた高強度鋼板及び高強度溶接鋼管並びにそれらの製造方法 |
JP2008248382A (ja) * | 2007-03-05 | 2008-10-16 | Nippon Steel Corp | 脆性き裂伝播停止特性に優れた厚手高強度鋼板およびその製造方法 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20160080282A (ko) * | 2014-12-26 | 2016-07-08 | 주식회사 포스코 | 유정용 열연강판, 이의 제조 방법 및 이에 의해 제조된 강관의 제조 방법 |
Also Published As
Publication number | Publication date |
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WO2011042936A1 (ja) | 2011-04-14 |
CN102549186B (zh) | 2014-08-27 |
CN102549186A (zh) | 2012-07-04 |
JPWO2011042936A1 (ja) | 2013-02-28 |
BR112012007753A2 (pt) | 2016-08-23 |
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