Qualities to Check to Select an MIG Welding Wire

MIG welding wire is typically coated with copper to enhance conductivity, prevent rusting, and reduce wear on the contact tip of the welding gun. A smooth, clean surface finish on the wire also reduces friction through the gun, ensuring consistent wire feed and reducing the likelihood of jams or irregular feeding. If the wire has an uneven surface or rust, it can lead to poor arc stability and weak welds.

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