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63093200 - Bonarc ER309L Stainless Steel TIG Rod - 3.2mm (5kg Tube)

Packaging: 5kg tube
$58.60/kg $183.15/5kg tube only $36.63/kgSave 37%

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OVERVIEW

Bonarc ER309L TIG Rods – The Solution for Dissimilar Steels

When your welding project calls for joining stainless steel to mild steel, you need a filler metal you can trust. The Bonarc ER309L TIG Rod in 3.2mm diameter is the go-to solution for welders facing complex fit-ups and mixed-material assemblies. Sold in a durable 5kg tube, these rods are kept straight and clean, ready for immediate use in your TIG torch. The 3.2mm profile is perfect for filling larger joints and handling heavier wall thicknesses without sacrificing the precision control that GTAW welding provides.

Why choose ER309L? It's all about versatility and crack resistance. The chemistry of this rod is richer in alloys than standard 308L, allowing it to dilute with carbon steel base metals while still producing a sound, austenitic stainless weld deposit. This makes it indispensable for repair work, bracket fabrication, and mounting stainless components onto steel frames. Additionally, the low carbon content protects your work from corrosion issues down the line, ensuring your repairs hold up under harsh conditions.

Bonarc is known for producing filler metals with excellent feedability and wetting action. You'll notice the difference in how the puddle flows and ties in at the toes of the weld. Reduce your post-weld cleanup and ensure defect-free results with a rod designed for professional performance. Stock your shop with Bonarc ER309L and be ready for any stainless-to-steel challenge that walks through the door.

Additional Information
Brand:Bonarc
Diameter:3.2mm (1/8")
AWS Spec:ER309L
Packaging:5 kg Tube
Weld Process:TIG (GTAW)
Grade:309
Material Composition:Austenitic Stainless Steel
Alloy Type:ER309L
Shielding Gas Requirement:100% Argon
Current Type:DCEN
Packaging Description:5kg tube
Polarity:DCEN

INCLUDED

  • 5kg Tube of Bonarc ER309L TIG Welding Rods (3.2mm)

APPLICATIONS

  • Joining stainless steel (AISI 309) to carbon steel
  • Welding dissimilar steels (Stainless to Mild Steel)
  • Applying buffer layers on carbon steel prior to cladding
  • Petrochemical and refinery piping systems
  • Power generation and heat exchanger fabrication
  • General maintenance and repair of industrial equipment

FAQ

ER309L is primarily used for welding dissimilar metals, such as joining stainless steel to carbon steel or low-alloy steels.

For TIG welding with ER309L, 100% Argon is the standard shielding gas recommended for best results.

The 'L' stands for 'Low Carbon'. This reduces the possibility of carbide precipitation, improving resistance to intergranular corrosion.

Yes, ER309L is the correct choice for welding 304 stainless steel to mild steel.

These rods have a diameter of 3.2mm (approximately 1/8 inch).

This product comes in a 5kg tube.

Yes, ER309L has excellent oxidation resistance at high temperatures.

TIG welding with stainless steel rods is typically performed using DCEN (Direct Current Electrode Negative).