Welding Preheat Calculator

Online Welding Preheat Calculator


Preheat Required (°C) =

Note : Please use the below table for the Typical hydrogen content for welding processes based on their consumables hydrogen absorption characteristics. Use free HD value in case you want other hydrogen levels in the final weldment.

Welding Process HD Level
Shielded Metal Arc Welding (SMAW) 5
Gas Metal Arc Welding (GMAW) 3
Flux Cored Arc Welding (FCAW) 5
Submerged Arc Welding (SAW) 5
Gas Tungsten Arc Welding (GTAW) 3