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Quick Comparison: Which Process Fits Your Job?
Standard Process Names (ISO 4063) — Helpful for Drawings & WPS Documents
1) GMAW (MIG/MAG): Gas Metal Arc Welding
What it is
Typical steel applications
Why fabricators choose it
Watch-outs (common real-world issues)
2) SMAW (Stick): Shielded Metal Arc Welding
What it is
Typical steel applications
Why fabricators choose it
Watch-outs
3) FCAW: Flux-Cored Arc Welding (Self-Shielded vs Gas-Shielded)
What it is
Two common variants (and when they win)
Typical steel applications
Watch-outs
4) SAW: Submerged Arc Welding (High-Deposition Production)
What it is
Where SAW dominates
Why fabricators choose it
Watch-outs
How to Choose
If you’re welding outdoors (windy site conditions)
If you’re in a fabrication shop optimizing throughput
If your welds are long, straight, and repetitive on thick plate
Quality & Safety Notes You Shouldn’t Skip
Codes & Documentation: WPS/PQR Still Drive Real-World Acceptance
FAQ
Is MIG the same as GMAW?
Which is best for structural steel: GMAW or FCAW?
Why is stick welding still so common?
When does SAW make the most sense?
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