
WeldMaster: Welding Calculator
MIG TIG Stick Flux Settings
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Free
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About
WeldMaster is the welding settings calculator built for working welders, fabricators, and students.
Pick your process, material, and thickness — get starting amperage, voltage, wire feed speed, gas flow, and polarity as honest ranges you tune to your machine. Brand-agnostic and 100% offline: it works in the shop, in the field, and inside metal buildings with zero signal.
FREE
• MIG (GMAW) calculator — mild steel, real shielding gas options (C25, C100, 90/10 and more), short-circuit vs spray transfer guidance
• Gauge chart — exact sheet steel gauge to inches and millimeters
• Troubleshooting starters — porosity, spatter, burn-through
PRO — ONE-TIME PURCHASE, NO SUBSCRIPTION
• MIG stainless & aluminum with gas compatibility warnings
• Flux-core: self-shielded E71T-11 AND dual-shield E71T-1 — with the polarity and gas each one actually needs
• Stick (SMAW): 6010, 6011, 6013, 7014, 7018, 7024 — published amperage tables by rod diameter, polarity per rod
• TIG (GTAW): amperage, tungsten type & size, cup, filler rod, AC balance & frequency for aluminum
• Heat input calculator with a built-in travel speed timer
• Preheat & carbon equivalent (CE) guidance
• Electrode chart & filler metal selector (including dissimilar 309L and 4043 vs 5356)
• Troubleshooting guide: 14 weld defects with cause-ranked fixes and bead diagrams
• My Setups: save the settings that actually worked on YOUR machine — name, machine, process, notes
Every result is a starting point clearly labeled as such. WeldMaster is a reference aid — always follow your WPS and applicable code requirements.
Made for MIG welders, TIG welders, stick welders, pipefitters, boilermakers, ironworkers, farm and hobby welders, and welding students.
COMMON QUESTIONS
Does it work offline?
Yes, all of it. No signal needed in the shop, in the field or inside a metal building, and there is no licence check.
Do I need an account?
No. There is no login and no sign-up.
Which processes does it cover?
MIG (GMAW), flux-core (FCAW), stick (SMAW) and TIG (GTAW), with the gas, polarity and transfer-mode guidance that goes with each.
Is it tied to a machine brand?
No. The numbers are starting ranges you tune to your own machine. Brand-agnostic on purpose.
Are the settings exact?
They are honest starting ranges, not a prescription. Your machine, your wire, your joint and your position all move them. Run a test coupon.
Does it replace the WPS?
No. If you are welding to a procedure, the WPS wins. This is for getting dialled in fast when you do not have one.
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What's New in WeldMaster
1.2.0
September 15, 2026
The troubleshooting screens talked about the "toe" of a weld, and in several languages the translator had read that as the toe on your foot — Dutch "teen", Polish "palec", Russian "heel", German "Fuß". The six languages this app is sold in now say what a welder says.
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