Square Grid

Alloy 347

Alloy 347 exhibits excellent resistance to intergranular corrosion.

Alloy 347 from NeoNickel offers superior resistance to intergranular corrosion. It’s also suitable for high temperature service, due to its good mechanical properties. Alloy 347 is now available from NeoNickel Hranice.


Product formSize range fromSize range to
Alloy 347 welding wire0.762mm2.3622mm
Alloy 347 sheet & plate0.508mm101.6mm
Alloy 347 round bar9.5mm177.8mm
Alloy 347 coil4.76mm-

Can't find the product you need? Please contact us directly."

  • Gallery Image


  • Gallery Image


  • Gallery Image

    Welding Consumables

  • Gallery Image

    Sheet & Plate

  • Gallery Image

    Round Bar

Chemical Analysis



Gallery Image

Perfect for applications in the Thermal Processing industry

Alloy 347 can be used in a variety of applications including:

  • Oil Refineries
  • Fluid catalytic cracking units
  • Hanger rods
  • Recuperator tube sheets
  • Fired heater tubes
  • Equipment in and around reactors

About Alloy 347

Alloy 347 is generally used where corrosive conditions are severe, such as aircraft exhaust stacks, manifolds and ring collectors. Type 347 is also used for heavy welded assemblies which cannot be annealed after welding or where the operating conditions cause exposure within the temperature range between 426.67° to 815.55°F.

For more information on Alloy 347 please feel free to contact our Hranice facility on +420 581 604 712 or salesceska@www.neonickel.com


7.916 g/cm³
Electrical resistivity:
8.89 x 10^ -7 Ωm


AMS 5512, AMS 5646
UNS Number:
UNS S30347
Download the Alloy 347 Data Sheet Download

Request a Quote

Fill in our online form to get a fast quote. Got a technical question? Contact us on techsales@neonickel.com or for more general enquiries please email us at enquiries@neonickel.com