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Want to fabricate a liferail for a sailboat and got a line on some very reasonable stainless in T-321 but I've been told that it contains titanium which will volatize in the arc (and presumably evaporate) and so it is NOT a good material to weld, and then I've been told to the contrary backed up with the "proof" that t321 tube is itself welded! Considering the use of 1.250 in 12-14 gauge wall thickness. WHICH is the straight talk and are there any curves to watch out for with this T321?elliot millerMiami, [email protected]
Reply:321 stainless steel is welded everyday in the aircraft/aerospace industries with great success. Use 347 filler rod. Good luck with your project.
Reply:As Propulsion said, no problems welding 321. Use 347 filler.316 would be a better choice of material though. They're all modifications of 304, designed to improve 'perfomance' in key areas. 321/347 are stabilized with titanium/niobium for higher temperature applications. 316 contains moly to improve corrosion resistance- particularly in chloride environments. It's not immune to corrosion but 316 is often referred to as 'marine grade' stainless |
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发表于 2021-9-1 00:51:41