Special steels makers, Xingcheng Special Steel Works Co., Ltd (China), Posco special steel (Korea), ArcelorMittal (Germany) and Tata Steel (UK) have more than one machine in operation, which indicates satisfaction with the inspection and operational performance of the Therm-O-Matic®. A surface inspection system based on infrared technology offers many advantages compared to conventional MPI and Flux Leakage systems.