Online Welding-NDT Calculators Last Updated On April 17, 2023 by Material Welding Free Welding- NDT Online Calculators Welding Preheat Calculator Carbon Equivalent (C.E.) Calculator Welding Heat Input Calculator AC1, AC3 & Ms transformation temperatures Calculator Hardness Conversion Calculator Material Welding Material Welding is run by highly experienced welding engineers, welding trainers & ASNT NDT Level III bloggers. We strive to provide most accurate and practical knowledge in welding, metallurgy, NDT and Engineering domains. ...