Home > Electrodes > AWS Class ER347 Mig & Tig Filler Welding Wire & Rod
Chanchai Stainless manufactures AWS Class ER347 MIG and TIG filler wires and rods, designed for welding stabilized austenitic stainless steels like Type 347 and Type 321. These filler metals include columbium (niobium) for grain stabilization, which makes them excellent for applications exposed to high temperatures or where resistance to intergranular corrosion is essential. ER347 provides smooth, crack-resistant welds with good arc characteristics.
ER347 typically contains 19 to 21% chromium, 9 to 11% nickel, and niobium or tantalum for stabilization. It delivers tensile strengths around 580 to 640 MPa and shows excellent resistance to intergranular attack. The weld deposit maintains its mechanical strength at high temperatures and resists carbide precipitation, making it suitable for high-heat environments.
| Classification | AWS A5.9, ER347 |
| Form | MIG spools, TIG cut lengths, Reels and Coils |
| Type Of Welding | Inert Gas Welding |
| Current | MIG-DCEP / TIG-DCEN |
| Diameters | .023”, .030”, .035”, .045”, 1/16”, 3/32”, 1/8” |
| Standard TIG straight lengths are available | 36” (914 mm) or 39” (1000 mm) lengths. Other lengths available upon request. |
| AWS ER347 MIG & TIG Filler Metal Application & uses |
|
| C | Cr | Ni | Mo | Mn | Si | P | S | Cu | Element | Amount |
| 0.08 | 19.0-21.5 | 9.0-11.0 | 0.75 | 1.0-2.5 | 0.30-0.65 | 0.03 | 0.03 | 0.75 | Nb | 10XC min/1.0 max |
| Yield, kpsi: | 57 |
| Tensile Strength, kpsi: | 86 |
| Elongation%, min: | 35 |
Contact us to get a quick quote for your requirement.
Stainless Steel ER347 MIG filler wire, available in sizes from 0.8mm to 1.6mm, offers excellent corrosion resistance and stability. Ideal for welding stabilized stainless steel in various industrial applications.
Stainless Steel ER347 TIG filler wire, ranging from 1.0mm to 3.2mm, provides superior corrosion resistance and stabilization. Perfect for precise welding of stabilized stainless steel in critical environments.
Stainless Steel ER347 TIG filler rod, available in sizes from 1.0mm to 3.2mm, ensures excellent corrosion resistance and stability. Suitable for welding stabilized stainless steel in demanding industrial applications.
We conduct rigorous tests on our AWS Class ER347 MIG and TIG Filler Welding Wire and Rod. To make sure they meet the highest quality standards. Our products undergo thorough various inspections to guarantee their reliability and performance in demanding applications. We also offer prompt delivery to assure our clients receive their orders on time. Maintaining smooth and efficient operations. Our commitment to quality and timely service makes us a trusted partner for all welding requirements.
ER347 is often used in welding piping, pressure vessels, and turbine components in industries such as chemical processing, oil refining, and power generation. It is also ideal for heat exchangers, aircraft exhaust systems, and other high-temperature welded assemblies where long-term stability is crucial.







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