63061200V - ER308L Stainless Steel TIG Welding Rod .045" (5kg Tube)

Technical Overview of ER308L Stainless Steel TIG Rod

The ER308L .045" TIG Rod is a premium austenitic stainless steel filler metal designed for the Gas Tungsten Arc Welding (GTAW) process. Conforming to AWS A5.9 classifications, this rod is specifically engineered for joining type 304 and 304L base metals. The 'L' designation indicates a controlled low carbon content (maximum 0.03%), which is critical for minimizing the risk of carbide precipitation during the welding process. This feature significantly enhances the weld's resistance to intergranular corrosion, making it suitable for applications where the welded component will be exposed to corrosive environments or high temperatures without post-weld heat treatment.

This filler metal typically contains approximately 20% chromium and 10% nickel, providing a microstructure that balances strength and ductility. The addition of silicon improves the fluidity of the weld pool, allowing for better wetting action and a smoother tie-in at the toes of the weld. This is particularly advantageous when welding thin-gauge materials where bead profile and appearance are paramount. The .045" (approx. 1.14mm) diameter offers precise control for fine detail work and root passes in pipe welding applications.

Packaged in a durable 5kg tube, these 39-inch cut lengths are protected from environmental contaminants such as moisture and dust, ensuring the integrity of the filler metal is maintained during storage. The rods are stamped or flagged for easy identification, supporting strict quality control protocols in industrial environments. Common applications include food and beverage processing equipment, chemical storage tanks, pharmaceutical piping, and general architectural fabrication where 304 stainless steel is the primary substrate.

Key Technical Specifications

• Classification: AWS A5.9 ER308L


• Base Metal Compatibility: AISI 304, 304L, 308, 321


• Tensile Strength: Typically 85,000 PSI (depending on parameters)


• Elongation: ~35-40%


• Shielding Gas: 100% Argon recommended