1. What does "ER" signify in aluminum welding wire classifications?"ER" stands for **Electrode Rod** in the AWS (American Welding Society) classification system. It indicates that the material can be used as either a bare electrode for Gas Metal Arc Welding (GMAW or MIG) or as a bare rod for Gas Tun
1. What does "E71T" signify in flux-cored welding wire classifications?"E" indicates an electrode. "7" denotes a minimum tensile strength of 70,000 psi (70 ksi) in the as-welded condition. "1" indicates that the wire is suitable for all welding positions. "T" signifies a tubular or flux-cored electr
1. What does "ER" signify in stainless steel welding wire classifications?"ER" stands for Electrode Rod, indicating a bare wire suitable for Gas Metal Arc Welding (GMAW or MIG) or Gas Tungsten Arc Welding (GTAW or TIG). This designation is standard across various metal types and is crucial for ident