BR112023017868A2 - DUPLEX STAINLESS STEEL TUBE AND MANUFACTURING METHOD THEREOF - Google Patents
DUPLEX STAINLESS STEEL TUBE AND MANUFACTURING METHOD THEREOFInfo
- Publication number
- BR112023017868A2 BR112023017868A2 BR112023017868A BR112023017868A BR112023017868A2 BR 112023017868 A2 BR112023017868 A2 BR 112023017868A2 BR 112023017868 A BR112023017868 A BR 112023017868A BR 112023017868 A BR112023017868 A BR 112023017868A BR 112023017868 A2 BR112023017868 A2 BR 112023017868A2
- Authority
- BR
- Brazil
- Prior art keywords
- steel tube
- stainless steel
- duplex stainless
- manufacturing
- less
- Prior art date
Links
- 229910001039 duplex stainless steel Inorganic materials 0.000 title abstract 5
- 238000004519 manufacturing process Methods 0.000 title abstract 3
- 229910000831 Steel Inorganic materials 0.000 abstract 1
- 238000005299 abrasion Methods 0.000 abstract 1
- 239000012535 impurity Substances 0.000 abstract 1
- 238000007373 indentation Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 229910001220 stainless steel Inorganic materials 0.000 abstract 1
- 239000010935 stainless steel Substances 0.000 abstract 1
- 239000010959 steel Substances 0.000 abstract 1
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
- C21D9/14—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes wear-resistant or pressure-resistant pipes
-
- 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
- C21D1/26—Methods of annealing
-
- 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
- C21D7/00—Modifying the physical properties of iron or steel by deformation
- C21D7/02—Modifying the physical properties of iron or steel by deformation by cold working
- C21D7/10—Modifying the physical properties of iron or steel by deformation by cold working of the whole cross-section, e.g. of concrete reinforcing bars
-
- 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
- C22C38/004—Very low carbon steels, i.e. having a carbon content of less than 0,01%
-
- 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
- C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
-
- 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
- C22C38/008—Ferrous alloys, e.g. steel alloys containing tin
-
- 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
- C22C38/18—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
- 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
- C21D2211/001—Austenite
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Heat Treatment Of Steel (AREA)
- Heat Treatment Of Articles (AREA)
- Laminated Bodies (AREA)
- Metal Extraction Processes (AREA)
Abstract
tubo de aço inoxidável duplex e método de fabricação do mesmo. aqui é fornecido um tubo de aço inoxidável duplex que é de alta resistência e tem excelente resistência à abrasão e resistência ao recorte nas superfícies interna e externa do tubo de aço. um método para fabricar tal tubo de aço inoxidável também é fornecido. um tubo de aço inoxidável duplex da presente invenção possui uma composição que contém, em % em massa, c: 0,005 a 0,150%, si: 1,0% ou menos, mn: 10,0% ou menos, cr: 11,5 a 35,0%, ni: 0,5 a 15,0%, mo: 0,5 a 6,0%, n: menos de 0,400% e o equilíbrio sendo fe e impurezas acidentais, e tem uma microestrutura com uma fase ferrítica e uma fase austenítica, o tubo de aço inoxidável duplex tendo uma resistência de escoamento por tração axial de 689 mpa ou mais, e tendo uma superfície externa e uma superfície interna, cada uma com uma camada de óxido tendo uma espessura média de 1,0 um ou mais.duplex stainless steel tube and manufacturing method thereof. here provided is a duplex stainless steel tube which is high strength and has excellent abrasion resistance and indentation resistance on the inner and outer surfaces of the steel tube. A method for manufacturing such a stainless steel tube is also provided. a duplex stainless steel tube of the present invention has a composition containing, in mass %, c: 0.005 to 0.150%, si: 1.0% or less, mn: 10.0% or less, cr: 11.5 to 35.0%, ni: 0.5 to 15.0%, mo: 0.5 to 6.0%, n: less than 0.400% and the balance being Fe and accidental impurities, and has a microstructure with a phase ferritic and an austenitic phase, the duplex stainless steel tube having an axial tensile yield strength of 689 mpa or more, and having an outer surface and an inner surface each with an oxide layer having an average thickness of 1, 0 one or more.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2021043498 | 2021-03-17 | ||
PCT/JP2022/005176 WO2022196196A1 (en) | 2021-03-17 | 2022-02-09 | Duplex stainless steel pipe and method for manufacturing same |
Publications (1)
Publication Number | Publication Date |
---|---|
BR112023017868A2 true BR112023017868A2 (en) | 2023-10-10 |
Family
ID=83322225
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR112023017868A BR112023017868A2 (en) | 2021-03-17 | 2022-02-09 | DUPLEX STAINLESS STEEL TUBE AND MANUFACTURING METHOD THEREOF |
Country Status (10)
Country | Link |
---|---|
US (1) | US20240309480A1 (en) |
EP (1) | EP4282990A1 (en) |
JP (1) | JP7173411B1 (en) |
CN (1) | CN116917523A (en) |
AR (1) | AR125543A1 (en) |
AU (1) | AU2022240057B2 (en) |
BR (1) | BR112023017868A2 (en) |
CA (1) | CA3208799A1 (en) |
MX (1) | MX2023010534A (en) |
WO (1) | WO2022196196A1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2024190645A1 (en) * | 2023-03-10 | 2024-09-19 | 日本製鉄株式会社 | Hot-stamp molded body |
WO2024195730A1 (en) * | 2023-03-17 | 2024-09-26 | 日本製鉄株式会社 | Duplex stainless steel pipe |
JP7553883B1 (en) | 2023-03-17 | 2024-09-19 | 日本製鉄株式会社 | Duplex Stainless Steel Pipe |
WO2024201749A1 (en) * | 2023-03-28 | 2024-10-03 | 日本製鉄株式会社 | Cr-Ni ALLOY TUBE |
WO2025018103A1 (en) * | 2023-07-18 | 2025-01-23 | Jfeスチール株式会社 | Duplex stainless steel and seamless stainless steel pipe |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57194213A (en) | 1981-05-25 | 1982-11-29 | Nippon Kokan Kk <Nkk> | Production of abrasion resistant steel pipe |
JPS63290616A (en) | 1987-05-22 | 1988-11-28 | Sumitomo Metal Ind Ltd | Clad steel pipe having excellent wear and corrosion resistance |
JPS6415323A (en) | 1987-07-08 | 1989-01-19 | Kawasaki Steel Co | Production of wear resistant steel pipe |
JP3697853B2 (en) * | 1997-09-09 | 2005-09-21 | Jfeスチール株式会社 | Stainless hot rolled steel sheet excellent in corrosion resistance and method for producing the same |
JP6792951B2 (en) * | 2015-03-30 | 2020-12-02 | 日鉄ステンレス株式会社 | Duplex stainless steel for ozone-containing water |
JP6805574B2 (en) * | 2015-07-10 | 2020-12-23 | 日本製鉄株式会社 | Austenitic heat resistant steel and austenitic heat transfer member |
CN109415787A (en) * | 2016-06-29 | 2019-03-01 | 新日铁住金株式会社 | Ascalloy and ferrite heat transfer member |
WO2020044988A1 (en) * | 2018-08-31 | 2020-03-05 | Jfeスチール株式会社 | Duplex stainless steel seamless pipe and method for producing same |
-
2022
- 2022-02-09 US US18/279,945 patent/US20240309480A1/en active Pending
- 2022-02-09 EP EP22770955.7A patent/EP4282990A1/en active Pending
- 2022-02-09 MX MX2023010534A patent/MX2023010534A/en unknown
- 2022-02-09 WO PCT/JP2022/005176 patent/WO2022196196A1/en active Application Filing
- 2022-02-09 AU AU2022240057A patent/AU2022240057B2/en active Active
- 2022-02-09 CN CN202280018568.9A patent/CN116917523A/en active Pending
- 2022-02-09 JP JP2022531457A patent/JP7173411B1/en active Active
- 2022-02-09 CA CA3208799A patent/CA3208799A1/en active Pending
- 2022-02-09 BR BR112023017868A patent/BR112023017868A2/en unknown
- 2022-03-16 AR ARP220100597A patent/AR125543A1/en unknown
Also Published As
Publication number | Publication date |
---|---|
AR125543A1 (en) | 2023-07-26 |
CA3208799A1 (en) | 2022-09-22 |
JPWO2022196196A1 (en) | 2022-09-22 |
WO2022196196A1 (en) | 2022-09-22 |
AU2022240057A1 (en) | 2023-08-17 |
CN116917523A (en) | 2023-10-20 |
US20240309480A1 (en) | 2024-09-19 |
JP7173411B1 (en) | 2022-11-16 |
EP4282990A1 (en) | 2023-11-29 |
AU2022240057B2 (en) | 2024-11-14 |
MX2023010534A (en) | 2023-09-19 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
BR112023017868A2 (en) | DUPLEX STAINLESS STEEL TUBE AND MANUFACTURING METHOD THEREOF | |
BR112018069311A8 (en) | Austenitic stainless steel material | |
BR112018073053A2 (en) | seamless steel pipe and method for producing seamless steel pipe | |
BR112021003350B8 (en) | Seamless duplex stainless steel tube and method for manufacturing the same | |
BR112016027036A2 (en) | HIGH STRENGTH SEAMLESS STAINLESS STEEL TUBE FOR OIL FIELD TUBULAR ARTICLES AND METHOD FOR MANUFACTURING THE SAME | |
BR112013025040A2 (en) | Abrasion-resistant steel plate, or excellent steel plate for stress corrosion cracking, and method for producing it | |
BR112018000540A2 (en) | high strength seamless stainless steel tube and method for manufacturing high strength seamless stainless steel tube | |
BR112015005986A2 (en) | abrasion resistant steel plate which has excellent low temperature toughness and excellent corrosive wear resistance | |
MX2019001830A (en) | Duplex stainless steel and method for manufacturing same. | |
BR112014015190A8 (en) | high strength continuous steel pipe for use in oil well that has excellent resistance to sulphide cracking | |
BR112018015713A2 (en) | high strength seamless stainless steel oil well pipe and method to manufacture it | |
BR112015005440A2 (en) | hot rolled steel sheet and method to manufacture it | |
BR112018012400A2 (en) | High intensity seamless steel tubes for oil wells, and a manufacturing method for the same | |
BR112019004836A2 (en) | high resistance continuous steel pipe for oil well, and method for producing it | |
MY195925A (en) | Austenitic Stainless Steel Sheet for Gasket, And Gasket | |
BRPI0416001A (en) | highly anti-corrosion high strength stainless steel tube for pipes and same production method | |
SA521422138B1 (en) | Duplex stainless steel seamless pipe and method for manufacturing same | |
BR112019000376A2 (en) | high chromium heat resistant martensitic steel with high creep rupture strength and oxidation resistance combined | |
BR112013011596A2 (en) | high strength cobalt based alloy and engine valve coated with the same | |
IN2014DN09528A (en) | ||
BR112017004317A2 (en) | high strength seamless steel tube for oil industry tubular products and manufacturing method | |
BR112014004063A2 (en) | heat resistant steel for discharge valves | |
US20190291219A1 (en) | Alloy for overlay welding and reaction tube | |
BR112015031596A2 (en) | seamless steel pipe for inline pipe used in acres | |
GB2258244A (en) | Stainless steel multifold pipe |