Home > Electrodes > AWS Class ER347 Mig & Tig Filler Welding Wire & Rod
Lecong Stainless is a trusted manufacturer and supplier based in Da Nang, Vietnam, specializing in top-notch AWS Class ER347 MIG and TIG Filler Welding Wire and Rod. These products are specifically designed for welding stabilized stainless steels like Grades 321 and 347. What sets this filler material apart is its inclusion of niobium (or columbium), which helps stabilize the weld metal, effectively preventing intergranular corrosion and carbide precipitation when temperatures rise. With features like smooth arc stability, minimal spatter, and easy slag removal, Lecong Stainless guarantees exceptional weld quality, making ER347 a go-to choice across industries such as chemical, petrochemical, power generation, marine, and aerospace.
The AWS Class ER347 MIG and TIG Filler Welding Wire and Rod are made up of 18–20% chromium and 9–11% nickel, along with niobium/tantalum for added stabilization. This wire boasts a tensile strength of about 550 MPa, a yield strength of roughly 350 MPa, and an elongation of 30–35%, ensuring it remains tough and ductile even under high temperatures. It excels in resisting oxidation, scaling, and intergranular corrosion, all while keeping weld integrity and strength intact in challenging environments where heat resistance and durability are essential.
| 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.
These filler wires and rods are commonly used for welding stainless steel equipment that operates at elevated temperatures, especially in pressure vessels, boilers, heat exchangers, and furnace components. They’re perfect for joining stainless steels that face high stress and corrosive conditions, such as piping systems, storage tanks, and refinery parts. In the aerospace and marine sectors, they deliver reliable welds that resist oxidation and stress corrosion cracking. Their ability to maintain structural integrity under extreme conditions makes ER347 filler wires and rods a top choice for critical welding tasks.
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