Nickel Alloy, Corrosion- And Heat-Resistant, Seamless Tubing 52.5Ni - 19Cr - 3.0Mo - 5.1Cb (Nb) - 0.90Ti - 0.50Al - 18Fe Consumable Electrode Or Vacuum Induction Melted 1950 °F (1066 °C) Solution Heat Treated