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[MW:33191] Re: Welding Process for Rail Material A75 ( DIN 536)

By Materials & Welding
Dear Vinu ,  
please  refe tthe AWS standard / ISO standrds for this  flash but welding / thermit welding of rails  

AWS D15.2/D15.2M- Recommended Practices for the Welding of Rails and Related Rail Components for Use by Rail Vehicles to get some basic idea about qualification  and ask your cleint are they having project specifcations for  rail welding.
type of tests required for any welding procedure will be confimed by welding code , contrsctuintion code& project specifications& recommended practices applicable for a project .

common test fro rail welds are 
NDT - RT/ UT(PREFERABLE) , MT
weld chemistry 
macro
hardness
metallurgucal test
bend test 
TRANSFER TESTS  
 MICRO (METALLURGYCIAL ANALYSIS )

Thanks & regards, 
Srinivas Rao

On Sunday, June 26, 2022 at 5:57:52 PM UTC+4 vinu raveendran wrote:
Dear Rao,
Thanks for the advise.

Can you please share as per which code we need to do a PQR coupon  and what mechanical/ NDT tests need to perform for qualifying WPS. 

On Sunday, June 26, 2022 at 9:23:47 AM UTC+3 srinivas rao wrote:

Dear Vinu,
Most commonly used welding process's for  rail welding is 
1. Flash butt welding process  
2. Thermit welding process 

Regards,
Srinivasarao
Welding engineer , GPS 
On Friday, June 24, 2022 at 2:31:50 PM UTC+4 vinu raveendran wrote:
Dear Experts,

Please advise what welding process is recommended to join rail material A75 (DIN 356) and as per which reference code/standard. Also mention what NDT to be performed.

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VINU RAVEENDRAN

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