Published: 17 Apr 2023
TIG vs MAG Welding: Key Differences, Benefits, and Use Cases
When selecting the right welding process for a project, understanding the difference between TIG and MAG welding is crucial. These two arc welding techniques serve different needs, materials, and environments — and each offers specific benefits depending on your application.
What Is TIG Welding?
TIG (Tungsten Inert Gas) welding uses a non-consumable tungsten electrode to generate the arc. A separate filler rod is added manually, and the process is shielded with inert gas like argon.
- High precision and clean finish
- Suitable for thin materials
- Minimal spatter and distortion
- Great for aluminum, stainless steel, and exotic metals
What Is MAG Welding?
MAG (Metal Active Gas) welding is a subtype of MIG, using a consumable wire electrode and active shielding gas (e.g., CO₂). It's commonly used for structural steel and automotive work.
- Faster and more efficient for thick materials
- Easy to automate and learn
- Excellent for fabrication and volume production
Side-by-Side Comparison
| Feature | TIG | MAG |
|---|---|---|
| Electrode | Non-consumable tungsten | Consumable wire |
| Shielding Gas | Inert (argon) | Active (CO₂ or Ar+CO₂) |
| Best for | Precision, thin metals | Thicker materials, fabrication |
Conclusion
Both welding methods have value — TIG for precision, MAG for speed. Fanero provides certified welders for both processes across projects in energy, infrastructure, and manufacturing.