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Welding Wire

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Fuse Metal Parts With Welding Wire


When you need to connect metal parts together, look for a spool of welding wire. When heated, this wire fuses between metal pieces and hardens as it cools, creating a bond that's stronger and cleaner than most adhesives. Wires also come in different thicknesses that are used for specific projects. 


The two main types of welding wires are metal inert gas (MIG) and flux core. MIG welding wire is solid and often plated with copper to conduct electricity and prevent oxidation. This wiring is versatile, easy to weld and requires minimal cleanup afterwards. Flux core welding wire is hollow on the inside and works better for repairs and welding scrap metals. It's also best for outdoor use. Flux core wire comes in two varieties. Self-shielded wire doesn't need a shielding gas and helps to eliminate steps in the welding process. Gas-shielded wire, on the other hand, solidifies quicker than the metal it's fusing together. 


MIG and flux core wires only work with their respective welder types — MIG and flux arc welders. If you're new to welding, learn more by visiting our comprehensive guide — Welding for Beginners: Tools and Tips.

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