《Incoloy alloy 909》.pdf

wwwwww..ssppeecciiaallmmeettaallss..ccoomm INCOLOY® alloy 909 (UNS N19909) is a nickel-iron- PPhhyyssiiccaall aanndd MMeecchhaanniiccaall cobalt alloy whose outstanding characteristics are a PPrrooppeerrttiieess constant low coefficient of thermal expansion, a constant modulus of elasticity, and high strength. The Values for some physical properties of INCOLOY alloy alloy is strengthened by a precipitation-hardening heat 909 are listed in Table 2. The values were determined treatment made possible by additions of niobium and for age-hardened material. Curie temperature varies titanium. The chemical composition of INCOLOY alloy within the range shown depending on specific chemical 909 is given in Table 1. composition of the material. The combination of low expansion and high Thermal and electrical properties of age-hardened strength makes INCOLOY alloy 909 especially useful material are given in Table 3. for gas turbines. The low expansion enables closer control of clearances and tolerances for greater power INCOLOY alloy 909 maintains its rigidity over a 9