Wednesday, May 30, 2012

[MW:14416] Thermal Stabilization

Dear Friends,
 
Need clarification regarding Supplementary Requirement of Thermal Stabilization of A213 TP321 tube materials used for heater jobs.
 
As per the requirements of the Licensor, thermal stabilization was carried out for tube materials used for coils in heater.
 
After welding with ER347 and E347 filler metals, thermal stabilization was carried out for the weld and HAZ.
 
I went through the earlier posts that is available in our group. I would like to have clarification regarding the following:
 
Skin Thermocouples are to be welded with the coils. The material of thermocouple is SS310.
 
1. What is the consumable that has to be used for welding the thermocouple SS310 with the A231TP321 tube. Joint would be Fillet.
 
2. Do we need to perform the same Thermal Stabilization for this weld also? If yes what would be the reason?
 
Please advice.
 
Thanks and regards,
 Sivakumar.M.R.
  
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