[go: up one dir, main page]

ZA201300240B - Method of producing an austenitic steel - Google Patents

Method of producing an austenitic steel

Info

Publication number
ZA201300240B
ZA201300240B ZA2013/00240A ZA201300240A ZA201300240B ZA 201300240 B ZA201300240 B ZA 201300240B ZA 2013/00240 A ZA2013/00240 A ZA 2013/00240A ZA 201300240 A ZA201300240 A ZA 201300240A ZA 201300240 B ZA201300240 B ZA 201300240B
Authority
ZA
South Africa
Prior art keywords
producing
austenitic steel
austenitic
steel
Prior art date
Application number
ZA2013/00240A
Inventor
Basjan Berkhout
Marcus Cornelis Maria Cornelissen
Jayesh Ramjibhai Patel
Original Assignee
Tata Steel Ijmuiden Bv
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 Tata Steel Ijmuiden Bv filed Critical Tata Steel Ijmuiden Bv
Publication of ZA201300240B publication Critical patent/ZA201300240B/en

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D1/00General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/68Temporary coatings or embedding materials applied before or during heat treatment
    • C21D1/70Temporary coatings or embedding materials applied before or during heat treatment while heating or quenching
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D6/00Heat treatment of ferrous alloys
    • C21D6/005Heat treatment of ferrous alloys containing Mn
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D8/00Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0221Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
    • C21D8/0226Hot rolling
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D8/00Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0221Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
    • C21D8/0236Cold rolling
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D8/00Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0247Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D8/00Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/04Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
    • C21D8/0421Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing characterised by the working steps
    • C21D8/0436Cold rolling
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D8/00Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/04Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
    • C21D8/0421Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing characterised by the working steps
    • C21D8/0442Flattening; Dressing; Flexing
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D8/00Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/04Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
    • C21D8/0447Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing characterised by the heat treatment
    • C21D8/0473Final recrystallisation annealing
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D9/00Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/34Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tyres; for rims
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D9/00Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/46Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
    • C21D9/48Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals deep-drawing sheets
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/001Ferrous alloys, e.g. steel alloys containing N
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/02Ferrous alloys, e.g. steel alloys containing silicon
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/04Ferrous alloys, e.g. steel alloys containing manganese
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/06Ferrous alloys, e.g. steel alloys containing aluminium
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/12Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/02Pretreatment of the material to be coated, e.g. for coating on selected surface areas
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/02Pretreatment of the material to be coated, e.g. for coating on selected surface areas
    • C23C2/022Pretreatment of the material to be coated, e.g. for coating on selected surface areas by heating
    • C23C2/0222Pretreatment of the material to be coated, e.g. for coating on selected surface areas by heating in a reactive atmosphere, e.g. oxidising or reducing atmosphere
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/02Pretreatment of the material to be coated, e.g. for coating on selected surface areas
    • C23C2/022Pretreatment of the material to be coated, e.g. for coating on selected surface areas by heating
    • C23C2/0224Two or more thermal pretreatments
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/02Pretreatment of the material to be coated, e.g. for coating on selected surface areas
    • C23C2/024Pretreatment of the material to be coated, e.g. for coating on selected surface areas by cleaning or etching

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
  • Coating With Molten Metal (AREA)
  • Heat Treatment Of Steel (AREA)
ZA2013/00240A 2010-06-10 2013-01-10 Method of producing an austenitic steel ZA201300240B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP10165596 2010-06-10
PCT/EP2011/002868 WO2011154153A1 (en) 2010-06-10 2011-06-10 Method of producing an austenitic steel

Publications (1)

Publication Number Publication Date
ZA201300240B true ZA201300240B (en) 2014-03-26

Family

ID=42732626

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA2013/00240A ZA201300240B (en) 2010-06-10 2013-01-10 Method of producing an austenitic steel

Country Status (8)

Country Link
US (1) US20130118647A1 (en)
EP (1) EP2580359B1 (en)
JP (1) JP6009438B2 (en)
KR (1) KR101900963B1 (en)
CN (1) CN102939394A (en)
BR (1) BR112012031466B1 (en)
WO (1) WO2011154153A1 (en)
ZA (1) ZA201300240B (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013003516A1 (en) * 2013-03-04 2014-09-04 Outokumpu Nirosta Gmbh Process for the production of an ultra-high-strength material with high elongation
DE102015111866A1 (en) 2015-07-22 2017-01-26 Salzgitter Flachstahl Gmbh Formable lightweight structural steel with improved mechanical properties and process for the production of semi-finished products from this steel
KR20180098645A (en) 2015-12-28 2018-09-04 더 나노스틸 컴퍼니, 인코포레이티드 Prevents delayed cracking during drawing of high strength steel
KR101747034B1 (en) * 2016-04-28 2017-06-14 주식회사 포스코 Ultra high strength and high ductility steel sheet having excellent yield ratio, and method for manufacturing the same
WO2017203311A1 (en) * 2016-05-24 2017-11-30 Arcelormittal Cold rolled and annealed steel sheet, method of production thereof and use of such steel to produce vehicle parts
WO2017203310A1 (en) * 2016-05-24 2017-11-30 Arcelormittal Method for producing a twip steel sheet having an austenitic microstructure
WO2017203312A1 (en) * 2016-05-24 2017-11-30 Arcelormittal Cold rolled and annealed steel sheet, method of production thereof and use of such steel to produce vehicle parts
WO2017203315A1 (en) * 2016-05-24 2017-11-30 Arcelormittal Cold rolled and annealed steel sheet, method of production thereof and use of such steel to produce vehicle parts
WO2017203309A1 (en) * 2016-05-24 2017-11-30 Arcelormittal Twip steel sheet having an austenitic matrix
WO2017203314A1 (en) * 2016-05-24 2017-11-30 Arcelormittal Twip steel sheet having an austenitic matrix
UA121439C2 (en) 2016-05-24 2020-05-25 Арселорміттал Method for the manufacture of twip steel sheet having an austenitic matrix
DE102016117508B4 (en) * 2016-09-16 2019-10-10 Salzgitter Flachstahl Gmbh Process for producing a flat steel product from a medium manganese steel and such a flat steel product
KR101889185B1 (en) * 2016-12-21 2018-08-16 주식회사 포스코 Hot-rolled steel sheet having superior formability and fatigue property, and method for manufacturing the same
CN108929991B (en) * 2017-05-26 2020-08-25 宝山钢铁股份有限公司 Hot-dip plated high manganese steel and manufacturing method thereof
KR102200155B1 (en) * 2019-12-06 2021-01-07 주식회사 포스코 Method for manufacturing of welded structure, and welded structure manufactured by thereof

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69226946T2 (en) * 1991-12-30 1999-05-12 Pohang Iron & Steel Co. Ltd., Pohang City, Kyung Sang Book AUSTENITIC MANGANIC STEEL SHEET WITH HIGH DEFORMABILITY, STRENGTH AND WELDABILITY AND METHOD
FR2731713B1 (en) * 1995-03-14 1997-04-11 Ugine Sa PROCESS FOR THE MANUFACTURE OF A SHEET OF ELECTRIC STEEL WITH ORIENTED GRAINS FOR THE PRODUCTION OF MAGNETIC TRANSFORMER CIRCUITS IN PARTICULAR
KR970043162A (en) * 1995-12-30 1997-07-26 김종진 Annealing heat treatment method and pickling method of high manganese cold rolled steel
FR2881144B1 (en) * 2005-01-21 2007-04-06 Usinor Sa PROCESS FOR MANUFACTURING FERRO-CARBON-MANGANIZED AUSTENITIC STEEL TILES HAVING HIGH RESISTANCE TO DELAYED CRACKING, AND SHEETS THUS PRODUCED
EP1846584B2 (en) * 2005-02-02 2022-12-14 Tata Steel IJmuiden B.V. Austenitic steel having high strength and formability method of producing said steel and use thereof
KR100742833B1 (en) * 2005-12-24 2007-07-25 주식회사 포스코 High manganese hot-dip galvanized steel sheet with excellent corrosion resistance and manufacturing method
KR100851158B1 (en) * 2006-12-27 2008-08-08 주식회사 포스코 High manganese high strength steel plate with excellent impact characteristics and its manufacturing method
JP5586024B2 (en) * 2007-05-02 2014-09-10 タタ、スティール、アイモイデン、ベスローテン、フェンノートシャップ Method for hot dip galvanizing of AHSS or UHSS strip material and such material
KR20090070509A (en) * 2007-12-27 2009-07-01 주식회사 포스코 High Manganese Plated Steel Sheet with High Ductility and High Strength and Its Manufacturing Method
KR100985286B1 (en) * 2007-12-28 2010-10-04 주식회사 포스코 High strength and high manganese steel excellent in delayed fracture resistance and manufacturing method
EP2257394B1 (en) * 2008-01-30 2018-11-07 Tata Steel IJmuiden BV Method of producing a hot-rolled twip-steel and a twip-steel product produced thereby
EP2090668A1 (en) * 2008-01-30 2009-08-19 Corus Staal BV Method of producing a high strength steel and high strength steel produced thereby
KR101079472B1 (en) * 2008-12-23 2011-11-03 주식회사 포스코 Method for Manufacturing High Manganese Hot Dip Galvanizing Steel Sheet with Superior Surface Property
EP2208803A1 (en) * 2009-01-06 2010-07-21 ThyssenKrupp Steel Europe AG High-tensile, cold formable steel, steel flat product, method for producing a steel flat product and use of a steel flat product

Also Published As

Publication number Publication date
WO2011154153A1 (en) 2011-12-15
EP2580359A1 (en) 2013-04-17
EP2580359B1 (en) 2017-08-09
KR101900963B1 (en) 2018-09-20
BR112012031466B1 (en) 2019-07-09
KR20130111214A (en) 2013-10-10
BR112012031466A2 (en) 2016-11-08
US20130118647A1 (en) 2013-05-16
CN102939394A (en) 2013-02-20
JP6009438B2 (en) 2016-10-19
JP2013534566A (en) 2013-09-05

Similar Documents

Publication Publication Date Title
ZA201300240B (en) Method of producing an austenitic steel
EP2623627A4 (en) Case hardened steel and method for producing same
BR112013015464A2 (en) method of producing non oriented electric steel sheet
ZA201208331B (en) Change of direction machine and method of training therefor
IL248217B (en) Method of producing ingenol-3-angelate
GB201006340D0 (en) Synthesis method and intermediates
PL2520682T3 (en) Steel material for quenching and method of producing same
ZA201208254B (en) Method of blasting
ZA201207131B (en) Method of producing radionuclides
ZA201309348B (en) Method for the production of very-high-strength martensitic steel and sheet or part thus obtained
EP2616881A4 (en) Method of forming pattern
PL2574684T3 (en) TWIP and NANO-twinned austenitic stainless steel and method of producing the same
EP2615226A4 (en) Steel pipe column structure and method for producing same
PL2707515T3 (en) Producing method for very high yield strength martensitic steel sheet and steel sheet obtained
EP2692888A4 (en) Case hardening steel, method for producing same, and mechanical structural part using case hardening steel
PL2578706T3 (en) Method of manufacturing grain-oriented electrical steel sheet
PL2663662T3 (en) Method of desulfurizing steel
EP2404681A4 (en) Method of producing steel wire
PL2537947T3 (en) Method of manufacturing grain-oriented electrical steel sheet
GB2497035B (en) Method of authentication
EP2653482A4 (en) Method for producing pseudopolyrotaxane
GB201008900D0 (en) Method of machining
IL222474A0 (en) Method of synthesis
GB201001599D0 (en) Novel method for steel production
GB201007454D0 (en) Method of determining tolerance