As a leading Chinese Incoloy alloy supplier, AEETHER manufactures and produces different sizes of Incoloy Alloy 909 sheets. INCOLOY® alloy 909 (UNS N19909) is a nickel-iron-cobalt alloy whose outstanding characteristics are a constant low coefficient of thermal expansion, a constant modulus of elasticity, and high strength. The alloy is strengthened by a precipitation-hardening heat treatment made possible by additions of niobium and titanium.