Alloy Name: 347 Welding Wire
Uns Number: S34781

347 is a columbium-stabilized stainless steel welding wire used to weld stainless steel metals of similar composition. The weld metal has good resistance to general corrosion. It is suitable for applications where welds are subjected to high temperatures.

Size/diameter (inches): 0.0300 - 0.1250
Specification: AMS 5680
Conforms to AWS A5.9 Class ER347
Temper: As Drawn
Typical Chemistry: C: 0.07 max
Cr: 17.00-20.00
Ni: 9.00-13.00
Mo: 0.75 max
Mn: 1.00-2.00
Si: 0.30-1.00
P: 0.03 max
S: 0.03 max
Cu: 0.75 max
Nb: 12xC min
*Typical Chemistry listed above is for reference only and is not to be used for specification purposes.
Available Forms: Spools
Cut lengths
Note For Non Stock Items:

If you need a non-stock item, we custom manufacture wire in most diameters and lengths.

Warranty Clause:

Bob Martin company believes the information contained herein to be reliable. However, the technical information is given without charge by Bob Martin Company and the user shall employ such information at its own discretion and risk. Bob Martin Company assumes no responsibilityfor results obtained or incurred from the use of such information in whole or in part.

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