What is the purpose of copper coating on mild steel filler rod used in gas welding?

🎲 Try a Random Question  |  Total Questions in Quiz: 118  |  🧠 Study this quiz with Flashcards
This question is part of a full practice quiz:
Welder Practice Test: Weldability of Steel — practice the complete quiz, review flashcards, or try a random question.

Steel's weldability is its ability to be welded without cold cracking. It's inversely proportional to steel's hardenability.


What is the purpose of copper coating on mild steel filler rod used in gas welding?