MIG WIRE 309L-G TETRA V STAINLESS 1.2MM
MIG Wire 309L-G "Tetra V" Stainless Steel Welding Wire – 1.2mm
Product Overview
Tetra V ER309L-G stainless steel MIG welding wire (1.2mm diameter) is a premium solid welding wire engineered for joining dissimilar metals and cladding applications. This low-carbon, high-chromium-nickel alloy wire is specifically formulated to weld stainless steel to carbon steel, as well as for buffer layers, overlay welding, and joining dissimilar stainless steel grades. Its 309L composition provides excellent corrosion resistance, crack resistance, and mechanical strength, making it a trusted choice for demanding industrial fabrication.
Key Features
- AWS Classification: ER309L (G designates gas-shielded solid wire)
- Diameter: 1.2mm — ideal for medium-to-heavy gauge welding
- Low Carbon Content: Minimizes carbide precipitation and reduces risk of intergranular corrosion
- High Chromium-Nickel Ratio: Delivers superior resistance to cracking and dilution when welding dissimilar metals
- Smooth Arc Performance: Consistent wire feeding with minimal spatter for clean, uniform weld beads
- Excellent Ductility: Produces welds with strong mechanical properties and good elongation
- Corrosion Resistant: Suitable for mildly corrosive environments and elevated temperature service
Typical Applications
- Welding stainless steel to carbon or low-alloy steel
- Dissimilar metal joints in fabrication and repair work
- Buffer/transition layers before overlay cladding
- Joining 309, 304, and other austenitic stainless grades
- Chemical processing equipment, heat exchangers, and furnace components
- Food processing and pharmaceutical equipment fabrication
- Automotive exhaust and marine fabrication
Recommended Shielding Gas
Typically used with 98% Argon / 2% CO2 or 100% Argon shielding gas for optimal arc stability and weld pool control.
Why Choose Tetra V 309L-G MIG Wire?
Tetra V's 1.2mm ER309L-G wire is manufactured to tight tolerances for consistent diameter and surface finish, ensuring reliable wire feeding through MIG guns with minimal downtime. It's a go-to solution for welders and fabricators who need dependable performance when working across dissimilar stainless and carbon steel combinations.