SFA-5.7/SFA-5.7M: Specification for Covered Copper and Copper Alloy Bare Welding Rods and Electrodes

This specification is similar to SFA-5.6 except that this specification provides the requirements for classifying covered copper and copper alloy bare welding rods and electrodes. (Bare welding rods and electrodes are also commonly referred to as bare wire or filler metal). These filler metals are typically used for GTAW, GMAW, and plasma arc welding (PAW). Classification is based on the chemical composition of the filler metal rather than the undiluted weld-metal deposit. These filler metals follow the same general classification system as the covered electrodes of SFA-5.6, except that the prefix “ER” for bare electrodes and rod replaces the “E” for electrode. Applications for these filler metals are generally the same as those for the copper and copper alloy covered electrodes.