SG11201900897RA - Seamless steel pipe and method for producing same - Google Patents

Seamless steel pipe and method for producing same

Info

Publication number
SG11201900897RA
SG11201900897RA SG11201900897RA SG11201900897RA SG11201900897RA SG 11201900897R A SG11201900897R A SG 11201900897RA SG 11201900897R A SG11201900897R A SG 11201900897RA SG 11201900897R A SG11201900897R A SG 11201900897RA SG 11201900897R A SG11201900897R A SG 11201900897RA
Authority
SG
Singapore
Prior art keywords
steel pipe
seamless steel
producing same
980mpa
rem
Prior art date
Application number
SG11201900897RA
Inventor
Takeshi Miki
Yuji Arai
Yusuke Mihara
Yohsuke Uchida
Masahiro Yamazaki
Masayuki Yamamoto
Original Assignee
Nippon Steel & Sumitomo Metal Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nippon Steel & Sumitomo Metal Corp filed Critical Nippon Steel & Sumitomo Metal Corp
Publication of SG11201900897RA publication Critical patent/SG11201900897RA/en

Links

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
    • 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
    • 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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/18—Hardening; Quenching with or without subsequent tempering
    • C21D1/25—Hardening, combined with annealing between 300 degrees Celsius and 600 degrees Celsius, i.e. heat refining ("Vergüten")
    • 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
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/004—Heat treatment of ferrous alloys containing Cr and Ni
    • 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
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/005—Heat treatment of ferrous alloys containing Mn
    • 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
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/008—Heat treatment of ferrous alloys containing Si
    • 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
    • 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
    • C21D8/105—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies of ferrous alloys
    • 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
    • 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
    • C22C38/001—Ferrous alloys, e.g. steel alloys containing N
    • 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
    • C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
    • 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
    • C22C38/06—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
    • C22C38/18—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
    • C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel 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
    • C22C38/40—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
    • C22C38/54—Ferrous alloys, e.g. steel alloys containing chromium with nickel 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
    • C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
    • 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
    • C21D2211/008—Martensite

Abstract

SEAMLESS STEEL PIPE AND METHOD FOR PRODUCING SAME A seamless steel pipe is provided that has a chemical composition which consists of, by mass%, C: 0.10 to 0.20%, Si: 0.05 to 1.0%, Mn: 0.05 to 1.2%, P  0.025%, S  0.005%, Cu  0.20%, N  0.007%, Ni: 0.20 to 0.50%, Cr: 0.30% or more and less than 0.50%, M o: 0.30 to 0.50%, Nb: 0.01 to 0.05%, Al: 0.001 to 0.10%, B: 0.0005 to 0.0020%, Ti: 0.003 to 0.050%, V: 0.01 to 0.20%, a total of any one or more element s among Ca, Mg and REM: 0 to 0.025%, and the balance: Fe and impurities, and for which Pcm (= C + (Si/30 ) + (Mn/20) + (Cu/20) + (Ni/60) + (Cr/20) + (Mo/15) + (V/10) + 5B)  0.30. The steel micro - structure includes, in area%, tempered martensite  90%. The tensile strength is 980MPa or more, and a Charpy impact value at - 40  C using a 2 mm V - notch test speci men is 75 J/cm 2 or more. (no drawing to be published)
SG11201900897RA 2016-08-01 2017-07-28 Seamless steel pipe and method for producing same SG11201900897RA (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2016150947 2016-08-01
PCT/JP2017/027529 WO2018025778A1 (en) 2016-08-01 2017-07-28 Seamless steel pipe and method for producing same

Publications (1)

Publication Number Publication Date
SG11201900897RA true SG11201900897RA (en) 2019-02-27

Family

ID=61074151

Family Applications (1)

Application Number Title Priority Date Filing Date
SG11201900897RA SG11201900897RA (en) 2016-08-01 2017-07-28 Seamless steel pipe and method for producing same

Country Status (8)

Country Link
US (1) US11453925B2 (en)
JP (1) JP6292366B1 (en)
KR (1) KR102225267B1 (en)
CN (1) CN109563587B (en)
CA (1) CA3032083C (en)
MY (1) MY191470A (en)
SG (1) SG11201900897RA (en)
WO (1) WO2018025778A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110129670B (en) * 2019-04-25 2020-12-15 首钢集团有限公司 1300 MPa-grade high-strength high-plasticity steel for hot stamping and preparation method thereof
CN113737096B (en) * 2021-08-31 2022-09-09 东风商用车有限公司 Annealing-free seamless steel tube, preparation method thereof and gearbox gear
JP7280545B1 (en) 2021-10-26 2023-05-24 日本製鉄株式会社 steel pipe welded fittings

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996036742A1 (en) 1995-05-15 1996-11-21 Sumitomo Metal Industries, Ltd. Process for producing high-strength seamless steel pipe having excellent sulfide stress cracking resistance
JP3755163B2 (en) 1995-05-15 2006-03-15 住友金属工業株式会社 Manufacturing method of high-strength seamless steel pipe with excellent resistance to sulfide stress cracking
JP4123672B2 (en) 2000-03-01 2008-07-23 住友金属工業株式会社 Manufacturing method of high strength seamless steel pipe with excellent toughness
JP4396851B2 (en) * 2005-03-31 2010-01-13 住友金属工業株式会社 High tensile steel with excellent plastic deformability after cold working and method for producing the same
JP5018784B2 (en) * 2006-10-27 2012-09-05 住友金属工業株式会社 Seamless steel pipe for airbag accumulator and manufacturing method thereof
JP4475440B1 (en) * 2008-11-26 2010-06-09 住友金属工業株式会社 Seamless steel pipe and manufacturing method thereof
JP4930652B2 (en) * 2010-01-27 2012-05-16 住友金属工業株式会社 Manufacturing method of seamless steel pipe for line pipe and seamless steel pipe for line pipe
CN102741438B (en) * 2010-06-03 2014-11-05 新日铁住金株式会社 Steel pipe for air bag and process for producing same
JP5845674B2 (en) * 2010-07-16 2016-01-20 Ｊｆｅスチール株式会社 High strength steel plate excellent in bending workability and low temperature toughness and method for producing the same
JP5842537B2 (en) * 2010-10-28 2016-01-13 Ｊｆｅスチール株式会社 High-strength steel for high-pressure hydrogen storage containers
JP5668547B2 (en) 2011-03-16 2015-02-12 新日鐵住金株式会社 Seamless steel pipe manufacturing method
JP5786720B2 (en) * 2012-01-05 2015-09-30 Ｊｆｅスチール株式会社 High tensile thick steel plate having a tensile strength of 780 MPa or more and method for producing the same
US9340847B2 (en) * 2012-04-10 2016-05-17 Tenaris Connections Limited Methods of manufacturing steel tubes for drilling rods with improved mechanical properties, and rods made by the same
JP6229640B2 (en) * 2014-11-14 2017-11-15 Ｊｆｅスチール株式会社 Seamless steel pipe and manufacturing method thereof

Also Published As

Publication number Publication date
JPWO2018025778A1 (en) 2018-08-02
CA3032083C (en) 2020-09-22
US11453925B2 (en) 2022-09-27
KR20190034285A (en) 2019-04-01
CA3032083A1 (en) 2018-02-08
KR102225267B1 (en) 2021-03-09
WO2018025778A1 (en) 2018-02-08
MY191470A (en) 2022-06-28
CN109563587A (en) 2019-04-02
CN109563587B (en) 2021-03-12
JP6292366B1 (en) 2018-03-14
US20190177813A1 (en) 2019-06-13

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