Jan 20, 2016 #1 engineer54 Mechanical Jul 14, 2013 26 Is ferrite test of Austenitic stainless steel done before and after welding or just after? What is the optimal ferrite so as to avoid cracking.
Is ferrite test of Austenitic stainless steel done before and after welding or just after? What is the optimal ferrite so as to avoid cracking.
Jan 21, 2016 #2 metengr Materials Oct 2, 2003 15,478 It is done after welding, namely the weldment itself. 5 FN or higher, depending on the weld filler metal. Upvote 0 Downvote
It is done after welding, namely the weldment itself. 5 FN or higher, depending on the weld filler metal.
Jan 22, 2016 #3 EdStainless Materials May 20, 2004 16,261 It depends on the alloy and the size of the weld (and how tightly constrained it is). Depending on conditions specs usually require a 4 or 5 minimum, and some have a max (as low as 8 and some up to 14). = = = = = = = = = = = = = = = = = = = = P.E. Metallurgy, Plymouth Tube Upvote 0 Downvote
It depends on the alloy and the size of the weld (and how tightly constrained it is). Depending on conditions specs usually require a 4 or 5 minimum, and some have a max (as low as 8 and some up to 14). = = = = = = = = = = = = = = = = = = = = P.E. Metallurgy, Plymouth Tube
May 27, 2016 #4 SJmetallurgist Mechanical Apr 8, 2006 47 Agree with Metengr with an addition. Ferrite test is done after welding but before any PWHT. Upvote 0 Downvote
