30 years of Experience in Manufacturing and Supply of Steel Pipes, Tubes, Plates, Pipe Fitting, Bars, Flanges, Olets, Orifice Plate, Stud Bolts and so forth. 304H is an 18-8 stainless with elevated carbon and coarser grain structure to increase excessive temperature energy. 230 – High energy nickel based mostly alloy used for land primarily based gas generators. Alloy X – Good power and ease of fabrication, with wonderful oxidation resistance by way of 2000°F. Widely used for aircraft, marine and industrial gasoline turbine combustors.