WeldTool Pro is a professional welding calculator built for welders, fabricators, and welding inspectors. All calculations work offline — no internet connection required. CORE FEATURES: 1. Heat Input Calculator Calculate heat input (kJ/mm or kJ/in) using voltage, amperage, and travel speed. Supports both metric and imperial units. Essential for procedure qualification per AWS D1.1 and ASME Section IX. 2. Fillet Weld Size Calculator Determine minimum fillet weld sizes based on material thickness per AWS D1.1 Table 5.7. Quickly verify if your fillet weld meets code requirements for structural steel fabrication. 3. Weld Settings Reference Quick-reference guide for common welding processes: SMAW, GMAW (MIG), GTAW (TIG), and FCAW. Includes typical voltage ranges, amperage settings, wire feed speeds, and shielding gas recommendations for various material thicknesses. 4. Electrode Reference Comprehensive electrode data sheet covering E6010, E6011, E7018, E7024 and more. Includes amperage ranges, polarity, positions, and ideal applications for each electrode. Essential for SMAW stick welding. 5. Weld Joint Symbols Visual reference for standard welding symbols per AWS A2.4. Includes groove welds, fillet welds, plug/slot welds, and supplementary symbols. Quickly decode engineering drawings. 6. Preheat Temperature Guide Preheat and interpass temperature requirements based on steel grade and thickness per AWS D1.1. Covers common structural steels (A36, A572, A514, etc.) with minimum preheat temperatures for SMAW, MIG, TIG, and FCAW processes. 7. Deposition Rate Calculator Estimate weld metal deposition rate (lb/hr or kg/hr) based on electrode type, diameter, and amperage. Useful for cost estimation and production planning in structural welding projects. WHO IS IT FOR: - Structural welders and fabricators - Certified welding inspectors (CWI) - Welding engineers and supervisors - Construction and maintenance professionals - Welding students and apprentices All calculations follow industry standards (AWS D1.1, AWS A2.4, ASME). No login required. No data collection. Works completely offline. Built by welders, for welders.