Difference between MIG, TIG and Electrodes

Overview

These names refer to common fusion welding processes: MIG (GMAW) uses a continuously fed wire, TIG (GTAW) uses a non‑consumable tungsten electrode with optional filler, and Stick (SMAW—“electrodes”) uses flux‑coated consumable electrodes. Each balances speed, control, and versatility differently.

How It Works

MIG (GMAW): A wire electrode feeds automatically under shielding gas; high deposition rates suit production welding.

TIG (GTAW): A tungsten electrode creates the arc; filler is added manually (or not at all). Offers the highest control and cleanest weld appearance.

Stick (SMAW): Flux‑coated electrodes are consumed as you weld; very versatile and tolerant in field conditions.

Steps (Choosing a process):

  1. Define the application needs: speed vs. precision vs. portability.
  2. Select the process that best fits your environment and joint requirements (e.g., TIG for precision, MIG for speed, Stick for field work).
  3. If joining dissimilar metals or corrosion‑resistant grades, confirm filler choice and heat input with Metallurgical Services.

Helpful Tips

  • For corrosion‑critical or dissimilar joints, filler selection often governs success; ask a metallurgist for a recommendation.
  • Practice proper heat control to minimize distortion and preserve corrosion resistance in stainless and nickel alloys.

Need Help?

Use RA Chat or email: onlinesales@rolledalloys.com

Article updated on 03/26/2026
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