Does PVD make stainless steel harder?
PVD coloured stainless steel’s hardness is between 1500 and 4500 HV (Vickers Hardness) whilst stainless steel, uncoated, is between 150 and 250 HV. So the PVD process greatly increases the hardness of the stainless steel giving it greater wear and corrosion resistance. PVD colouring does not however increase the tensile strength of stainless steel.


Antonio Desposito
Director, Kolzer PVD Plasma PECVD technology

Kolzer Srl
Manufacturer of PVD Machines for small and medium-sized components.