ER70 S-6 can be employed in which welding processes?

ER70 S-6 is a filler metal classification according to the American Welding Society (AWS) specifications. This designation indicates a specific type of welding wire suitable for various welding processes, specifically the use of solid or flux-cored wire in modern welding techniques.

GMAW (Gas Metal Arc Welding) and GTAW (Gas Tungsten Arc Welding) are both processes that utilize ER70 S-6. In GMAW, it is often used in the form of solid wire, providing a good deposition rate and high-quality welds. In GTAW, ER70 S-6 can also be utilized, although it's more common to see ER70 S-2 in this context. Both processes benefit from the properties of this filler metal, providing excellent mechanical properties and a good balance of strength and ductility.

Therefore, the option stating that ER70 S-6 can be employed in either GMAW or GTAW properly recognizes the versatility of the filler metal in these welding processes, making it a suitable choice for various applications in structural welding, as specified by the Structural Welding Code.