Dephosphating of high strength components before heat treatment

13 July 2016

By Stefan Lenzer, global product manager metallurgy, MacDermid GmbH

Ref: FFT160713

High strength fasteners must be dephosphated before heat treatment to prevent phosphate residues having a negative influence on the performance of the heat treatment process. This article looks at the process of phosphating and dephosphating as well as application and quality control.