2865-FCO-11.36 - JOW 40 .045 Flux Cored Build-Up Wire 25lb Spool

Restore and Rebuild with JOW 40

Don't scrap expensive heavy equipment parts just because they are worn down—rebuild them with Josef Gas JOW 40. This .045-inch build-up wire is the welder's go-to solution for bringing worn steel parts back to life. Whether you are working on tractor rollers, crane wheels, idlers, or worn-out shafts, JOW 40 provides the high-quality fill you need to restore original dimensions. Packaged in a substantial 11.36kg (25lb) spool, it offers plenty of material for those large-scale repair jobs that come through the shop door.

The magic of JOW 40 lies in its "build-up" classification. Standard MIG wire is great for sticking two pieces of metal together, but it isn't designed to withstand the crushing forces that heavy machinery parts endure. On the other hand, extremely hard hardfacing wire is too brittle to use for thick layers and can't be machined. JOW 40 sits perfectly in the middle. It lays down a deposit that is tough and impact-resistant, capable of handling heavy loads without squashing out. Most importantly, it remains machinable. This means you can weld up a worn shaft, put it on the lathe, and turn it down to a perfect smooth finish, making the part look and function like new.

This wire is also your best friend when you plan to apply a final layer of super-hard protection. If you try to put a hardfacing layer directly onto a soft mild steel part that takes heavy pounding, the hardfacing will crack like an eggshell because the soft steel underneath gives way. By using JOW 40 as a buffer layer (or "butter pass"), you create a stiff, supportive foundation that supports the hardfacing, ensuring your repairs last significantly longer in the field.

Designed for ease of use, JOW 40 runs smoothly in standard wire feeders. The .045" diameter is a versatile size, allowing for good deposition rates in the flat and horizontal positions while still being manageable for smaller detail work. If your shop handles equipment repairs, agricultural implements, or general fabrication maintenance, keeping a spool of JOW 40 on hand is a smart investment that saves time and money on replacement parts.