Quality Heat Technologies, Melbourne, Australia, developed a new suite of industrial equipment under the brand name Qab for the application of surface-engineering treatments to improve the corrosion resistance of metals. The equipment is a combination of coating chemistry and fluidized bed technology, which is based on diffusion of metallic elements such as chromium into the base metal. One of the processes under Qab is Qchrome, which improves the corrosion resistance of low-grade stainless steels in high-temperature applications and expands the limits at which stainless steels can operate in corrosive environments. Another process, Qsil, improves the corrosion resistance of low-grade carbon and alloy steels and has the potential to replace coatings that are currently in use.