Argon/carbon dioxide blends are used for the smoothest arc and best out-of-position performance. In addition, the E71T-1 wires also offer an exceptionally smooth welding arc and minimal spatter, even with 100% carbon dioxide shielding gas. Its fast freezing rutile slag provides the highest deposition rates in the vertical-up position, up to 7 pounds per hour, unmatched by any other semi-automatic arc welding process. There are several popular types of flux-cored wires and how they can increase welding productivity:įor semi-automatic out-of-position welding, E71T-1 wires offer unsurpassed performance. They may be used outdoors in heavy winds without tenting and the additional equipment required for gas shielding. The benefits of self-shielded flux-cored wires lie in its simplicity. The core materials generate its own shielding gases, slag formers, and compounds to refine the weld pool. The FCAW-S wires on the other hand, the core materials must provide all of the shielding. As all of shielding is provided by the shielding gas, the core materials may be carefully selected to maximize a certain area of welding performance, such as obtaining smooth spray-type transfer with 100% carbon dioxide shielding gas and welding speeds twice as fast in the vertical position. The core ingredients for FCAW-G wires have been formulated to obtain performance impossible to achieve with a solid GMAW wire. The flux-cored arc welding self-shielded (FCAW-S) wires were introduced to the market later, around 1961. Scavengers and fluxing agents are used to refine the weld metal.įlux-cored arc welding gas-shielded (FCAW-G) wires were introduced to the market around 1957. Powdered alloys are added to produce low-alloy deposits or improving the mechanical properties. Iron powder is used to increase deposition rates. Slag formers are added to shield the weld pool and shape and support the weld. The ability to add a variety of materials to the core of the welding wire allows many performance enhancements to be made. It is either limited to short-circuit transfer, which is restricted by many welding codes due to the tendency for lack-of-fusion, or pulse transfer, requiring a special welding power source. For example, GMAW is slow for out-of-position welding. For many welding applications like vertical-up welding, flat welding, welding over galvanized, or welding hard-to-weld steels, a flux-cored wire can do it better and faster.Īlthough gas metal arc welding (GMAW) with a solid mild steel wire is popular, easy-to-use, and effective for many applications, it does have limitations and drawbacks. If welding with a solid wire is satisfactory, why use a higher priced flux-cored wire? A flux-cored wire is optimized to obtain performance not possible with a solid wire. So, per the example above the number of inches of. Once we have inches per pound all we need to do is multiply this number by the number of pounds per package. The density of aluminum is 0.098lb/cu-in so please be careful to use the right density. The density of steel and stainless steel are pretty close (0.283lb/cu-in and 0.289lb/cu-in respectively). What we are calculating is the volume of material and then multiplying it by the density of that material to arrive to our answers. Weight of package (weight of filler only).Filler metal type (carbon steel, stainless steel or aluminum).The calculation is simple, but we need to know the following: Please note, these calculations are for solid wires only and do not apply to flux-cored or metal-cored wires. You can also keep reading below to see how we can calculate this for any diameter, and not just the common ones such as.
#Flux core wire size chart download
You can download your free Cheat Sheet for Inches of Wire per Package (of wire) here. Click the image to download your FREE copy
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