WO2001036698A1 - Steel for railway crossing points - Google Patents

Steel for railway crossing points Download PDF

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Publication number
WO2001036698A1
WO2001036698A1 PCT/CZ2000/000085 CZ0000085W WO0136698A1 WO 2001036698 A1 WO2001036698 A1 WO 2001036698A1 CZ 0000085 W CZ0000085 W CZ 0000085W WO 0136698 A1 WO0136698 A1 WO 0136698A1
Authority
WO
WIPO (PCT)
Prior art keywords
maximally
steel
railway
phosphor
sulphur
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CZ2000/000085
Other languages
French (fr)
Inventor
Josef ZBOŘIL
Eduard Heczko
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dt Vyhybkarna A Mostarna Spol S Ro
Original Assignee
Dt Vyhybkarna A Mostarna Spol S Ro
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 Dt Vyhybkarna A Mostarna Spol S Ro filed Critical Dt Vyhybkarna A Mostarna Spol S Ro
Priority to PL349011A priority Critical patent/PL193180B1/en
Priority to CH01302/01A priority patent/CH694464A5/en
Priority to AU11281/01A priority patent/AU1128101A/en
Priority to UA2001064074A priority patent/UA70342C2/en
Priority to HR20000679A priority patent/HRPK20010494B1/en
Priority to CA002355868A priority patent/CA2355868A1/en
Priority to DE20080276U priority patent/DE20080276U1/en
Publication of WO2001036698A1 publication Critical patent/WO2001036698A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • 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
    • C22C38/44—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
    • C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B7/00—Switches; Crossings
    • E01B7/10—Frogs

Definitions

  • the technical solution concerns the chemical composition of steel on the basis of chrome - nickel - molybdenum used especially for railway and tram point crossing frog castings.
  • the materials, which were known and used by now for production of railway and tram point crossing frog castings are for example materials used under trade name 13 Mn super special, including iron with weight % of 0,60 up to 0,90% of carbon, 12,5 up to 16,5% of manganese, maximally 0,60% of silicon, maximally 0,05% of phosphor, maximally 0,03 % of sulphur, 1 , 8 up to 2,2% of molybdenum, crossing frog rail steel used under trade name UIC 900A, including iron with weight % of 0,60 up to 0,80% of carbon, 0, 1 up to 0, 5 % of manganese, 0,80 up to 1 ,3 % of silicon, maximally 0,04% of phosphor, maximally 0,04% of sulphur, steel used under trade name 75 " C SD VK, including iron with weight % of 0,45 up to 0,65 % of carbon, 0,75 up to 1 ,45 % of manganese, 0, 10 up to 0,50% of silicon, maximally 0,050% of phosphor,
  • the disadvantages of steel with the 13 Mn super special quality include difficult machining, welding and facing of worn parts, impossibility of fault checking by ultra-sound.
  • the disadvantages of the crossing frog rails in quality UIC 900A, 75 CSD VK, 85 and 95 CSD VK include low yield point, fast wearing and development of bars, low impact value, susceptibility to fraction, low hardness and operation life.
  • steel characterised by including iron with weight % of 0,07 up to 0, 15% of carbon, 0,50 up to 1 ,20% of manganese, maximally 0,50% of silicon, 1 ,20 up to 2,00% of chrome, 0,40 up to 0,70% of molybdenum, 2,50 up to 3 ,50% of nickel, maximally 0, 13% of vanadium, maximally 0,05 % of titan, maximally 0,045% of the total contents of aluminium in steel, maximally 0,015%o of phosphor, maximally 0,015% of sulphur.
  • the advantages of the steel in comparison with the actual technical situation include reaching of improved mechanical characteristics, where the strength limit Rm is 950 MPa up to 1300 MPa, the yield limit Rp0,2 is minimally 750 MPa up to 915 MPa, impact value KCV is minimally 20 J/cm 2 , hardness 290 HB up to 420 HB and ductility minimally 10%.
  • the sample of the technical solution according to the utility model includes steel, which includes iron with weight % of 0, 140% of carbon, 0, 80% of manganese, 0,34% of silicon, 1 ,76% of chrome, 0,471 % of molybdenum, 2,63% of nickel, 0,087% of vanadium, 0,045 % of titan, maximally 0,042% of the total contents of aluminium in steel, maximally 0,014% of phosphor, 0,009% of sulphur.
  • This steel is characterised by the final strength limit (Rm) of 1 147 MPa, the yield limit (Rp0,2) 915 MPa, the impact value (KCV+20 °) 26 J/cm 2 , hardness 338 HB , ductility (A5 ) 14, 8%.
  • the technical solution can be advantageously used for railway and tram point crossing frog castings with high requirements on resistance against wearing.
  • the steel is highly strenuous, it allow good-quality welding and machining of the crossing frogs.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Metallurgy (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Architecture (AREA)
  • Heat Treatment Of Steel (AREA)
  • Catalysts (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Manufacturing Of Steel Electrode Plates (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
  • Heat Treatment Of Articles (AREA)
  • Current-Collector Devices For Electrically Propelled Vehicles (AREA)

Abstract

Steel especially for production of railway and tram point crossing frogs, including iron with weight % of 0,07 up to 0,15 % of carbon, 0,50 up to 1,20 % of manganese, maximally 0,50 % of silicon, 1,20 up to 2,00 % of chrome, 0,40 up to 0,70 % of molybdenum, 2,50 up to 3,50 % of nickel, maximally 0,13 % of vanadium, maximally 0,05 % of titan, maximally 0,045 % of the total contents of aluminium in steel, maximally 0,015 % of phosphor, maximally 0,015 % of sulphur.

Description

STEEL FOR RAILWAY CROSSING POINTS
Technical Field
The technical solution concerns the chemical composition of steel on the basis of chrome - nickel - molybdenum used especially for railway and tram point crossing frog castings.
Background Art
The materials, which were known and used by now for production of railway and tram point crossing frog castings are for example materials used under trade name 13 Mn super special, including iron with weight % of 0,60 up to 0,90% of carbon, 12,5 up to 16,5% of manganese, maximally 0,60% of silicon, maximally 0,05% of phosphor, maximally 0,03 % of sulphur, 1 , 8 up to 2,2% of molybdenum, crossing frog rail steel used under trade name UIC 900A, including iron with weight % of 0,60 up to 0,80% of carbon, 0, 1 up to 0, 5 % of manganese, 0,80 up to 1 ,3 % of silicon, maximally 0,04% of phosphor, maximally 0,04% of sulphur, steel used under trade name 75" C SD VK, including iron with weight % of 0,45 up to 0,65 % of carbon, 0,75 up to 1 ,45 % of manganese, 0, 10 up to 0,50% of silicon, maximally 0,050% of phosphor, maximally 0,050% of sulphur, steel used under trade name 85 and 95 CSD VK, including iron with weight % of 0,60 up to 0,80% of carbon, 0,75 up to 1 ,40% of manganese, 0, 10 up to 0,50% of silicon, maximally 0,04% of phosphor, maximally 0,04% of sulphur, while the data in % represent the maximally approved range of concentration of individual elements or their maximal approved contents. The disadvantages of steel with the 13 Mn super special quality include difficult machining, welding and facing of worn parts, impossibility of fault checking by ultra-sound. The disadvantages of the crossing frog rails in quality UIC 900A, 75 CSD VK, 85 and 95 CSD VK include low yield point, fast wearing and development of bars, low impact value, susceptibility to fraction, low hardness and operation life.
Disclosure of Invention
The above stated disadvantages of materials especially for production of railway and tram point crossing frog are significantly eliminated by steel, characterised by including iron with weight % of 0,07 up to 0, 15% of carbon, 0,50 up to 1 ,20% of manganese, maximally 0,50% of silicon, 1 ,20 up to 2,00% of chrome, 0,40 up to 0,70% of molybdenum, 2,50 up to 3 ,50% of nickel, maximally 0, 13% of vanadium, maximally 0,05 % of titan, maximally 0,045% of the total contents of aluminium in steel, maximally 0,015%o of phosphor, maximally 0,015% of sulphur.
The advantages of the steel in comparison with the actual technical situation include reaching of improved mechanical characteristics, where the strength limit Rm is 950 MPa up to 1300 MPa, the yield limit Rp0,2 is minimally 750 MPa up to 915 MPa, impact value KCV is minimally 20 J/cm2, hardness 290 HB up to 420 HB and ductility minimally 10%.
Description
The sample of the technical solution according to the utility model includes steel, which includes iron with weight % of 0, 140% of carbon, 0, 80% of manganese, 0,34% of silicon, 1 ,76% of chrome, 0,471 % of molybdenum, 2,63% of nickel, 0,087% of vanadium, 0,045 % of titan, maximally 0,042% of the total contents of aluminium in steel, maximally 0,014% of phosphor, 0,009% of sulphur.
This steel is characterised by the final strength limit (Rm) of 1 147 MPa, the yield limit (Rp0,2) 915 MPa, the impact value (KCV+20 °) 26 J/cm2, hardness 338 HB , ductility (A5 ) 14, 8%.
Industrial Applicability
The technical solution can be advantageously used for railway and tram point crossing frog castings with high requirements on resistance against wearing. The steel is highly strenuous, it allow good-quality welding and machining of the crossing frogs.

Claims

Steel especially for production of railway and tram point crossing frogs is characterised by including iron with weight % of 0,07 up to 0, 15% of carbon, 0,50 up to 1 ,20% of manganese, maximally 0,50% of silicon, 1 ,20 up to 2,00% of chrome, 0,40 up to 0,70% of molybdenum, 2,50 up to 3 , 50% of nickel, maximally 0, 13% of vanadium, maximally 0,05 % of titan, maximally 0,045% of the total contents of aluminium in steel, maximally 0,015% of phosphor, maximally 0,015 % of sulphur.
PCT/CZ2000/000085 1999-11-17 2000-11-14 Steel for railway crossing points Ceased WO2001036698A1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
PL349011A PL193180B1 (en) 1999-11-17 2000-11-14 Steel for railway crossing points
CH01302/01A CH694464A5 (en) 1999-11-17 2000-11-14 Steel for railway crossing points including manganese, chromium, molybdenum and nickel
AU11281/01A AU1128101A (en) 1999-11-17 2000-11-14 Steel for railway crossing points
UA2001064074A UA70342C2 (en) 1999-11-17 2000-11-14 Steel steel
HR20000679A HRPK20010494B1 (en) 1999-11-17 2000-11-14 Steel for railway crossing points
CA002355868A CA2355868A1 (en) 1999-11-17 2000-11-14 Steel for railway crossing points
DE20080276U DE20080276U1 (en) 1999-11-17 2000-11-14 Steel for rail crossings

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CZPUV1999-10091 1999-11-17
CZ199910091U CZ9574U1 (en) 1999-11-17 1999-11-17 Steel for railway crossing points

Publications (1)

Publication Number Publication Date
WO2001036698A1 true WO2001036698A1 (en) 2001-05-25

Family

ID=5468971

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CZ2000/000085 Ceased WO2001036698A1 (en) 1999-11-17 2000-11-14 Steel for railway crossing points

Country Status (12)

Country Link
AU (1) AU1128101A (en)
CA (1) CA2355868A1 (en)
CH (1) CH694464A5 (en)
CZ (1) CZ9574U1 (en)
DE (1) DE20080276U1 (en)
HR (1) HRPK20010494B1 (en)
PL (1) PL193180B1 (en)
RU (1) RU2248408C2 (en)
SK (1) SK3038U (en)
UA (1) UA70342C2 (en)
WO (1) WO2001036698A1 (en)
YU (1) YU50601A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1306117C (en) * 2002-06-05 2007-03-21 福斯洛科吉弗公司 Welding between rail element and rail profile without any additional material
US11116728B2 (en) 2006-11-30 2021-09-14 Bend Research, Inc. Multiparticulates of spray-coated drug and polymer on a meltable core

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0136004A1 (en) * 1983-07-30 1985-04-03 British Steel Corporation Bainitic steels
GB2224514A (en) * 1988-10-17 1990-05-09 Rauma Repola Oy Steel and production thereof
WO1997018921A1 (en) * 1995-11-23 1997-05-29 Jinpo Pluls A.S. Method of welding material onto rails
US5879474A (en) * 1995-01-20 1999-03-09 British Steel Plc Relating to carbide-free bainitic steels and method of producing such steels

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0136004A1 (en) * 1983-07-30 1985-04-03 British Steel Corporation Bainitic steels
GB2224514A (en) * 1988-10-17 1990-05-09 Rauma Repola Oy Steel and production thereof
US5879474A (en) * 1995-01-20 1999-03-09 British Steel Plc Relating to carbide-free bainitic steels and method of producing such steels
WO1997018921A1 (en) * 1995-11-23 1997-05-29 Jinpo Pluls A.S. Method of welding material onto rails

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
WEGST, C.W.: "Stahlschüssel", 1986, VERLAG STAHLSCHÜSSEL WEGST GMBH, MARBACH, DE, XP002160857 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1306117C (en) * 2002-06-05 2007-03-21 福斯洛科吉弗公司 Welding between rail element and rail profile without any additional material
US11116728B2 (en) 2006-11-30 2021-09-14 Bend Research, Inc. Multiparticulates of spray-coated drug and polymer on a meltable core

Also Published As

Publication number Publication date
CH694464A5 (en) 2005-01-31
HRPK20010494B1 (en) 2003-06-30
AU1128101A (en) 2001-05-30
HRP20010494A2 (en) 2002-06-30
CA2355868A1 (en) 2001-05-25
UA70342C2 (en) 2004-10-15
PL349011A1 (en) 2002-06-17
PL193180B1 (en) 2007-01-31
DE20080276U1 (en) 2001-11-29
SK3038U (en) 2001-11-06
CZ9574U1 (en) 2000-01-31
RU2248408C2 (en) 2005-03-20
YU50601A (en) 2004-03-12

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