63091600 - Bonarc ER309L Stainless Steel TIG Welding Rod - 1.6mm Diameter

The Ultimate Problem-Solver for Dissimilar Metal Welding

Every welder knows the challenge of joining two different types of metal. Whether you are fabricating a custom bracket, repairing a piece of heavy machinery, or working on an automotive exhaust system, welding mild steel to stainless steel requires a specific filler metal to ensure the joint holds. Enter the Bonarc ER309L TIG Rod. This 1.6mm filler rod is your go-to solution for dissimilar metal welding, offering a smooth, stable arc and a bead that wets out perfectly. It takes the guesswork out of complex jobs, allowing you to lay down high-quality welds that look as good as they hold.

The Bonarc ER309L is formulated to be forgiving. When you weld carbon steel to stainless, the puddle mixes with the base metals. If you used a standard 308L rod, the weld might crack due to dilution. The 309L chemistry is richer in alloy content, compensating for that dilution and producing a tough, ductile weld every time. This makes it an essential item for any job shop or garage. Furthermore, the 1.6mm size is incredibly versatile. It is small enough to handle delicate sheet metal work without blowing through, yet substantial enough to carry a puddle for general fabrication tasks. It gives you the fine control needed for intricate TIG work, allowing for tight ripples and minimal post-weld grinding.

Beyond its mechanical capabilities, this rod features a low-carbon formula that helps prevent rust and corrosion around the weld area long after the job is done. The 5kg tube ensures you have plenty of material on hand for larger projects, and the sturdy packaging keeps your rods straight and clean until you are ready to burn them. Whether you are a professional fabricator or a serious hobbyist, keeping Bonarc ER309L in your arsenal means you are always ready for whatever mix of metals comes through the door.