AWS A5.18 E70C-6M is a type of metal cored wire used for welding. Metal cored wires are similar to flux-cored wires in that they have a tubular design, but instead of a flux coating, they have a metal powder filling. This metal powder filling contains various alloys and other materials that help to improve the welding process.
This type of wire is commonly used for welding carbon and low-alloy steels, especially in applications where high productivity and good penetration are desired. The metal powder filling helps to increase the deposition rate, resulting in faster welding speeds and higher productivity. The wire also produces a smooth, low spatter weld with good bead appearance.
AWS A5.18 E70C-6M is a type of welding wire that conforms to the American Welding Society (AWS) specification A5.18. The “E70C-6M” designation indicates the specific type of wire, where “E” stands for electrode, “70” refers to the minimum tensile strength of the weld metal, “C” indicates that it is a composite electrode (i.e., metal-cored wire), “6” refers to Chemical Composition Requirements for Weld Metal from Composite Electrodes, and the “M” means that it is suitable for welding with 75%–80% Ar/balance CO 2 (M21) gas.