
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 |
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| 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 |