E312-16 can be used to weld ss309s? 1

[Krishna_Manyam]

E312-16 can be used to weld ss309s 25mm thick plates?

 

[weldstan]

One could unless the contract called for matching filler metal chemistry. But why would you want to?

 

[david339933]

E309L is found anywhere....

 

[Dhurjati Sen]

What if there is a PMI test of welds after all welding jobs are over?

Even its not there in the original QA Plan, somebody gets wind of usage of different SS electrodes and insists on a PMI of welds?



DHURJATI SEN
Kolkata, India

 

[Krishna_Manyam]

We have surplus stock of E312-16,thats why i would like to check for usability

 

[kingnero]

For deviations, I'd like to see at least:
- a complete WPQR (BW with all mechanicals, and macro/micro that show a satisfying metallurgical compatibility (high FN of 312!)
- Schaeffler / De Long / WRC / ... diagram for the range of dilutions used in welding
- statement of compliance with requirements (anything out of the ordinary during service that requires low(er) ferrite content for corrosion applications?)