EX3470000001250TL0 - Exocor ER347 Stainless TIG Rod 1/8" - 10lb Tube

Exocor ER347 Stainless Steel TIG Welding Rod (1/8")

The Exocor ER347 TIG Rod is a premium-grade stainless steel filler metal designed for the Gas Tungsten Arc Welding (GTAW) process. This 1/8-inch diameter rod is formulated to meet AWS A5.9 specifications, ensuring consistent chemical composition and mechanical properties. The defining characteristic of the ER347 classification is the addition of niobium (columbium), which acts as a stabilizing element against chromium carbide precipitation.

When welding austenitic stainless steels, particularly grades 347 and 321, exposure to high temperatures (800°F to 1500°F) can lead to intergranular corrosion due to carbide precipitation at the grain boundaries. The niobium in Exocor ER347 preferentially combines with carbon, preventing the depletion of chromium and maintaining the corrosion resistance of the alloy. This makes it the ideal choice for applications involving high service temperatures or where post-weld heat treatment is not feasible.

Industries such as chemical processing, oil and gas refining, and food manufacturing rely on ER347 for its durability and resistance to scaling. The rod produces a smooth, stable arc with excellent bead aesthetics and wetting characteristics. It is typically used with 100% Argon shielding gas to ensure a clean, oxidation-free weld pool. This 10lb tube packaging ensures that the rods remain straight, clean, and protected from environmental contaminants until ready for use.

Technical Specifications

• AWS Classification: ER347
• Diameter: 1/8" (3.2mm)
• Alloy Type: Niobium-Stabilized Austenitic Stainless Steel
• Primary Applications: Welding AISI 347 and 321 base metals
• Shielding Gas: 100% Argon