What is the AWS classification for a copper-based electrode with nickel?

What is the AWS classification for a copper-based electrode with nickel?

• A. ECuNi
• B. ECu
• C. ECuNiMo
• D. ENiCu

Answer: (A)

The label for a filler metal in this system tells you the base metal and the alloying elements. For copper-based electrodes, the base is indicated by Cu, and adding nickel is shown by Ni. So a copper-based electrode with nickel is designated ECuNi. This tells you the deposit will be copper with nickel as the alloying element, which is exactly what you have. If you omit nickel, you’d have ECu; if you add another element like molybdenum, you’d get ECuNiMo. ENiCu is not the copper-based family designation used here, so it wouldn’t correctly describe a copper-base electrode with nickel.

The label for a filler metal in this system tells you the base metal and the alloying elements. For copper-based electrodes, the base is indicated by Cu, and adding nickel is shown by Ni. So a copper-based electrode with nickel is designated ECuNi. This tells you the deposit will be copper with nickel as the alloying element, which is exactly what you have. If you omit nickel, you’d have ECu; if you add another element like molybdenum, you’d get ECuNiMo. ENiCu is not the copper-based family designation used here, so it wouldn’t correctly describe a copper-base electrode with nickel.