441 SS ~1mm wall tube - welding query
441 SS ~1mm wall tube - welding query
(OP)
Hi, does anyone have first-hand experience welding 441 thin wall tube - 46mm OD ~1mm wall thickness.
What welding technique is best suited, is filler rod used? If so what?
Is argon purging - pressurising the internals of the pipes - required?
This material is used in the auto industry for exhausts - am using it for heat exchanger - low pressure - water / exhaust gas.
Thanks for any advice.
What welding technique is best suited, is filler rod used? If so what?
Is argon purging - pressurising the internals of the pipes - required?
This material is used in the auto industry for exhausts - am using it for heat exchanger - low pressure - water / exhaust gas.
Thanks for any advice.





RE: 441 SS ~1mm wall tube - welding query
http:
At 1mm thickness, I would use an inert metal arc gas welding process with no filler metal (autogenous). The Technical sheet from Allegheny provides information on welding.
RE: 441 SS ~1mm wall tube - welding query
That seems to be good advice. I spoke to the steel mill that makes this material and they offer the same advice.