ASTM A106 GR.B Mild Hot Finished Seamless Carbon Steel Pipe are used in industrial applications involving high temperatures, including process piping, boiling units, compression stations, and oil refineries. The extra silicon improves the product’s performance in high temperature environments, such as steam piping and process applications. ASTM/ASME/SA106 Piping (also included in ASME Code SA/A106) is the standard specification for seamless carbon steel piping in high temperature environments. It is most commonly used in refineries and factories when gases or fluids are transported at high temperature and pressure.