Certified Steel Treating (CST) Corporation... SERVING the Heat Treat Industry SINCE 1947Equipped to meet your needs Large Product and Small Batch, processing capability. Large Atmospheric Heat-treating equipment used for processing Alloy Steels, Stainless Steels, Nickel Alloys and Copper Alloys, including Carburizing of Alloy Steels.  Our equipment will accommodate product 10 feet long 90 inches, in diameter and 22 ½ feet long by 28 inches, in diameter.Open-Fire Equipment, capable of performing ASME PWHT, Stress Relieving and Annealing of machined, cold worked and welded parts, fixtures and tooling. The equipment will accommodate large product, up to 20 feet long by 12 feet wide by 9 feet high.Our mission is to partner with our customers to accommodate their ever-changing needs, in order to provide excellent service, quality, timely delivery, competitive price, and continuous product and service improvement to maintain competiveness in a challenging environment.