PWHT Post Weld Heat Treatment

What is Pre-heat?

To heat before using or before subjecting to some further process.
To heat the material in the correct working temperarture before welding.


What is heat Treatment?

Heat treatment is the process of heating and cooling metals, using specific predetermined methods to obtain desired properties. Both ferrous as well as non-ferrous metals undergo heat treatment before putting them to use. Over time, a lot of different methods have been developed.

What is (PWHT) Post weld Heat Treatment?

Post Weld Heat Treatment (PWHT), or stress relief as it is sometimes known, is a method for reducing and redistributing the residual stresses in the material that have been introduced by welding.

#Heattreatment
#PostweldHeatTreatment
#StressReleiving
#Värmebehandling
#Avspänningsglödgning