GMAW Basics — Module 3 Practice Kit
Get to the arc fast. Pre-cut A36 coupons sized for GMAW practice so you can focus on bead quality, not bandsaw time. Steel only — pair with your own ER70S-6 wire and C25 gas.
What’s Included
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Pad plate: (1) 6″ × 6″ × 3/8″ — for stringers control
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Flats (A36, deburred, mill scale on): all 1″ × 6″ × 3/16″
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T-Joints: (10) flats → 5 joints (4 practice + 1 test)
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Lap Joints: (10) flats → 5 joints
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Vertical Uphill: (10) flats → 5 joints
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Vertical Downhill: (10) flats → 5 joints
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Overhead Fillet: (10) flats → 5 joints
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Each joint uses two flats. Total flats: 50 + 1 pad plate.
Skills Covered
Pad the plate • 2F T-fillet • 2F Lap-fillet • 3F Vertical (uphill & downhill) • 4F Overhead
Why This Kit
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Right thickness for MIG: 3/16″ flats strike a balance—fast puddle response without blowing through.
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Consistent coupon sizing: makes grading and progress tracking clean.
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Classroom-ready counts: 4 practice reps + 1 test per position.
Specs
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Material: A36 mild steel
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Flats: 1″ × 6″ × 3/16″ (qty 50)
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Pad plate: 6″ × 6″ × 3/8″ (qty 1)
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Estimated steel weight: ~19.8 lb (ship weight typically 22–26 lb boxed)
Notes
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Steel-only kit (no wire, no gas). Recommended: ER70S-6 with C25 (75/25).
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Light surface prep recommended: clean to bright metal ~½″ from edges.
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Use stops/clamps on a welding table for square, repeatable joints.
Who It’s For
Students and new welders moving into Module 3 GMAW who need repeatable practice parts for horizontal, vertical (up & down), and overhead fillets.