
When your stainless steel project demands the best protection against rust and corrosion, reach for Bonarc ER316L TIG rods. This 4.0mm (5/32") filler rod is the heavy-hitter for thicker stainless sections, delivering a smooth, stable arc and a clean bead that makes you look good. Whether you are repairing marine hardware, building food-grade tanks, or fabricating custom exhaust systems, this rod flows easily and wets out perfectly.
The 316L alloy is essentially the 'marine grade' upgrade to standard stainless rod. It handles salt and harsh chemicals much better than 308L. Plus, the low carbon formula means your welds stay strong and rust-free over time, even without heat treating them afterwards. The rods come in a sturdy 5kg reusable plastic tube that keeps your filler metal straight, clean, and dry in the shop or on the truck.
Why Welders Choose Bonarc:
| Additional Information |
|---|
| Brand:Bonarc |
| AWS Spec:ER316L |
| Diameter:4.0mm (5/32") |
| Packaging:5 kg Tube |
| Weld Process:TIG (GTAW) |
| Grade:316 |
| Material Composition:Austenitic Stainless Steel |
| Shielding Gas Requirement:100% Argon |
| Current Type:DCEN |
| Alloy Content:Molybdenum Bearing |
| Packaging Description:5kg tube |
| Polarity:DCEN |