RG4518 - R45 Mild Steel Gas Welding Rod 1/8" (3.2mm) - 10lb Tube

Reliable Steel Rods for Oxy-Acetylene Welding

When you need to fire up the torches and fix some steel, the R45 gas welding rod is the classic choice for the job. This 1/8" (3.2mm) rod is the "bread and butter" filler for oxy-acetylene welding on mild steel. Whether you are working on vintage auto body repairs, fixing exhaust systems, or handling general shop maintenance, this rod flows like butter and leaves a clean, smooth bead that looks great and holds tight.

The copper coating on these rods isn't just for looks; it keeps your filler metal rust-free while it sits in the tube, ensuring that when you reach for a rod, it's clean and ready to weld. R45 rods are famous for being forgiving. They create a soft, ductile weld deposit that is easy to file, grind, or machine down later. If you've ever struggled with brittle welds from improper filler, switching to R45 for your gas welding projects will make a world of difference.

This 10lb tube gives you plenty of material to keep in the shop for those unexpected repairs. The 1/8" size is versatile enough to handle thin sheet metal without blowing through, yet substantial enough to build up worn surfaces or join thicker brackets. Just set your torch to a neutral flame, get your puddle established, and dip this rod in for a consistent, high-quality repair every time.