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home project question
Posted: Tue Apr 24, 2012 10:13 am
by Boilermaker
Can someone advise me on the appropriate tig wire for 430 grade stainless steel?
Thanks
Re: home project question
Posted: Tue Apr 24, 2012 5:22 pm
by jpence38
pre-heat at 150-200°C. Embrittlement in the weld metal and heat affected zone can be relieved by a post-weld anneal at 790-815°C, but grain refinement will not occur. Use Grade 430, 308L, 309 or 310 filler rod, depending upon application. AS 1554.6 pre-qualifies welding of Grade 430 with Grade 309 filler rods and electrodes