TIG welding ss 321 filler rod
Posted: Wed Oct 24, 2018 10:32 am
Hi all,
When welding ss 321 where the finished structure is being used at prolonged elevated temperatures,( in the 425 to 850 °C), it is required to use filler rod 321 or 347.
321 filler rod is restricted for tig welding only, since the stabilising agent used in this rod (Ti) would mostly deteriorate when transfered to the base metal via an arc.
When I use the tig melding procedure I thus have an option to use filler rod 321 or 347...but is there a preference?
Where 321 filler rod wil match perfect the base metal composition, whereas 347 where the stabilising agent is niobium, will there be any difference in the finished weld quality?
Best regards and many thanks in advance,
Des.
When welding ss 321 where the finished structure is being used at prolonged elevated temperatures,( in the 425 to 850 °C), it is required to use filler rod 321 or 347.
321 filler rod is restricted for tig welding only, since the stabilising agent used in this rod (Ti) would mostly deteriorate when transfered to the base metal via an arc.
When I use the tig melding procedure I thus have an option to use filler rod 321 or 347...but is there a preference?
Where 321 filler rod wil match perfect the base metal composition, whereas 347 where the stabilising agent is niobium, will there be any difference in the finished weld quality?
Best regards and many thanks in advance,
Des.