How strong and fatigue resistant are welds on 304 Stainless Steel?

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How strong and fatigue resistant are welds on 304 Stainless Steel?What is the best way to get really strong welds? Is TIG strong enough?Is resistance welding really necessary?
Reply:depends on operator skill. 1st on WeldingWeb to have a scrolling sig! HTP Invertig 400HTP Invertig 221HTP ProPulse 300HTP ProPulse 200 x2HTP ProPulse 220MTSHTP Inverarc 200TLP HTP Microcut 875SC
Reply:There is no giant difference between stainless and mild steels. The same rules apply. Proper heat, full penetration and the correct filler creates a weld as strong as the parent metal.The term "stainless" simply refers to a steel with more than 13% CR. I'm sure it may be 12.773499 % or maybe 14.0005876 %  The "correction" will arrive soon For a machinist things can get complicated.Bubble gumTooth pixDuct tapeBlack glueGBMF hammerScrew gun --bad battery (see above)
Reply:All stainless alloys are more prone to fatigue failure than say mild steel.  Fatigue failures rarely are due to the weld itself but to sudden changes in section or existing cracks.  As the weldment vibrates over millions of cycles the failure starts at a notch or a crack.  The physical design of the weldment and the shape of the weld have a great deal to do with the likelyhood of fatigue failure.  Properly laid in the weld is as strong or stronger.  This is a general rule for nonheat treated steel unlike heat treated alloys such as aluminum alloys.   Fatigue failures usually result from things like a crater at the end of a weld bead, not from the strength of the weld.