Diffusion Alloys offers wear resistant diffusion coatings for industrial applications. Our deep knowledge base and over 60 years of experience makes Diffusion Alloys a global specialist in protective coatings for wear resistance


Boronising, sometimes referred to as boriding, is a diffusion coating with a low co-efficient of friction that is capable of retaining its high hardness at elevated temperatures.

DAL are capable of boronising a wide range of metal base layers including nickel, cobalt, tungsten carbide and most ferrous alloys without sacrificing the corrosion-resistance or mechanical properties of the base material. Boronising is used in a wide range of applications and industries. It is commonly used to produce glass bottle moulds, plungers, dies, tooling and for components in the oil & gas and turbomachinery industries.

For more information on our boronising process please click here.


Diffusion Alloys was the first company globally to launch chromising as a commercial industrial diffusion process. With 60 years of experience in applying chromide coatings we working closely with our customers to provide specified or customised chromide coatings that satisfy specific requirements for wear and/or corrosion resistance.

Chromide coatings are used on a wide range of components, including chain pins, sprags, levers, rods, locators, seals and tubes.

For more information on our chromising process, please click here.