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Welding Standardsat the Belgian

Railways

41. prEN 14587-1 (Flash Butt)2. EN 14730-1 (Thermite)3. EN 14730-2 (Thermite)4. EN 15594 (Rails)5. prEN 16725 (AMS)6. EN 15085 (Rolling Stock)7. EN1090 (Construction

Works)

5prEN 14587-1 (CEN/TC 256)

prEN 14587-1 (Flash Butt Welding)

Railway applicationsTrack InfrastructureFlash butt welding of railsPart 1: New R220, R260, R260Mn, R320Cr, R350HT, R350LHT, R370CrHT and R400HT grade rails in a fixed plant

6Scope:


•requirements of a welding process;•procedure approval for a fixed plant; •approval of other rail profiles or grades; •approval of welding contractor; •weld production following approval.

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11EN 14587-2 : Mobile FBW

EN 14587-2 (Mobile Flash Butt Welding)

• Part 2: FBW of rails by mobile welding machines

• Already in use in several other countries

• Tests are planned in 2016 in Belgium

• Expensive, unless multiple welds can be executed during the same shift.

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EN 14587-2 (Mobile Flash Butt Welding)

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2. EN 14730-1 (Thermite)3. EN 14730-2 (Thermite)4. EN 15594 (Rails)5. prEN 16725 (AMS)6. EN 15085 (Rolling Stock)7. EN1090 (Construction

Works)

1. prEN 14587-1 (Flash Butt)

14NBN EN 14730-1+A1:2010

EN 14730-1 (Thermite Welding)

Railway applicationsTrackAluminothermic welding of railsPart 1: Approval of welding processes

15Scope:


This standard defines the laboratory tests and requirements for approval of an aluminothermic welding process using welds produced in workshop conditions.

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Fe2O3 + 2Al → 2 Fe + Al2O3 + E

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3. EN 14730-2 (Thermite)4. EN 15594 (Rails)5. prEN 16725 (AMS)6. EN 15085 (Rolling Stock)7. EN1090 (Construction

Works)

1. prEN 14587-1 (Flash Butt)2. EN 14730-1 (Thermite)

19NBN EN 14730-2:2007


Railway applicationsTrackAluminothermic welding of railsPart 2: Qualification of aluminothermic welders, approval of contractors and acceptance of welds

20Scope:


This standard specifies:• the system for training, testing

and maintaining the skills of aluminothermic welders.

• the systems and requirements for the approval of aluminothermic welding contractors.

• the acceptance requirements for aluminothermic welds.

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4. EN 15594 (Rails)5. prEN 16725 (AMS)6. EN 15085 (Rolling Stock)7. EN1090 (Construction

Works)

1. prEN 14587-1 (Flash Butt)2. EN 14730-1 (Thermite)3. EN 14730-2 (Thermite)

24EN 15594:2009

EN 15594 (Rail Welding)

Railway applicationsTrackRestoration of rails by electric arc welding

25Scope:


This European Standard specifies restoration by electric arc welding and is limited to the head of the rails only.

Processes: shielded metal arc welding & flux cored arc welding

26Welding Procedure Specification

• Basic rods,vacuum packaging

• PT (LPI) after removing the damaged materialor the top layer

• Preheat 350°C• Min. interpass =

300°C• NO start/stops in the

welding zone• Oblique transitions

at the end of the weld zone


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31Hardness Testing


1 2 3 4 5 6 7 8 9 10 11 120

100

200

300

400

500

600

Vickers

Hardness tolerance of R260 Rail

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5. prEN 16725 (AMS)6. EN 15085 (Rolling Stock)7. EN1090 (Construction

Works)

1. prEN 14587-1 (Flash Butt)2. EN 14730-1 (Thermite)3. EN 14730-2 (Thermite)4. EN 15594 (Rails)

33prEN 16725 (public inquiry accepted)

prEN 16725 (AMS Repair)

Railway applicationsTrackRestoration and repair of manganese crossings

34Scope:


This European Standard specifies restoration of cast austenitic manganese steel for fixed crossings. The standard also applies to flash welded leg ends of austenitic manganese steel crossings and the associated tri-metal zone.

Processes: shielded metal arc welding & flux cored arc welding

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6. EN 15085 (Rolling Stock)7. EN1090 (Construction

Works)

1. prEN 14587-1 (Flash Butt)2. EN 14730-1 (Thermite)3. EN 14730-2 (Thermite)4. EN 15594 (Rails)5. prEN 16725 (AMS)

38Scope:

EN 15085 (Rolling Stock)

This series of standards applies to welding of metallic materials in the manufacture and maintenance of railway vehicles and their parts.

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EN 15085 (Rolling Stock)

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7. EN 1090 (Construction Works)

1. prEN 14587-1 (Flash Butt)2. EN 14730-1 (Thermite)3. EN 14730-2 (Thermite)4. EN 15594 (Rails)5. prEN 16725 (AMS)6. EN 15085 (Rolling Stock)

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EN 1090 (Construction Works)

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Dimitri De Spiegeleer, IWE +32 474 22 22 40Welding Consultant, [email protected]

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