UPM Nickel Alloy 188 (UNS R30188 / Werkstoff Number 2.4683) is a low-carbon, cobalt-nickel-chromium-tungsten alloy that combines excellent high-temperature strength with very good oxidation resistance up to 1095 °C (2000 °F). It is widely used in commercial and military aircraft gas turbine engines. This datasheet provides information on composition and physical properties. It also includes information on forming and joining. Filing Code: Co-130. Producer or source: United Performance Metals.