Ferrite measurement or delta ferrite measurement and the control of ferrite phase in both Austenitic and Duplex Stainless Steels is important to maximise the physical, mechanical and corrosion resistance of the material. Ferrite is an important constituent of stainless steel as it helps prevent hot cracking when the material is welded. In Austenitic Stainless Steels too much ferrite will lead to a reduction in the corrosion resistance properties of the material. Empire Industrial Services provide ferrite measurement and can assist in the control of welding to ensure that whatever properties are required, they are measured and controlled to ensure compliance.