Metals Technology Corporation has been a leading provider of heat treating services to the the Greater Chicago Metropolitan a ... rea for over 53 years! Metals Technology Corporation has one goal: to provide our customers with “Quality Heat Treating and Excellent Service”. Our full list of services include, but are not limited to: Oil Processing Induction Vacuum Tool and Die Marquenching Annealing Nitriding Austempering With our expert Metallurgical Staff, we offer services to help you with your heat treating needs. read more