Started in 1975, Kowalski Heat Treating Company specializes in salt bath and vacuum heat treating. The firm offers an array of services, such as vacuum heat treating, maraging, normalizing, austempering, ferritic carbonitriding, digital image analysis, brinell hardness testing, and many more. It operates through its divisions, including K-VAC, K-SALT, K-GLOW, K-LIFE, K-FLAT and K-LABS. The firm possesses one of the largest heat treating capacities in Northern Ohio. Kowalski Heat Treating Company is a member of Heat Treating Network, Heat Treating Society, American Society for Quality and NADCA.