We could produce UNS N19903 Forged forging Round Bars Rods Square rectangular rectangle turbine blades Flat Bars,UNS N19903 Forged Forging Steel Hollow Bars Forged Forging Sleeves Bushes Bushing Pipes Piping tubes tubings barrels Casing Cases Shells cylinders hubs housings,UNS N19903 Forged Forging Rings Seamless Rolled Steel Rings,UNS N19903 forged forging Turbine Seals rings,Turbine casings, compressors Turbine shrouds,UNS N19903 Forged Forging Steel Blocks Discs Disks Plates ,UNS N19903 Forging forged steel Gas Steam Turbine Valve Spindles Stems Rods,UNS N19903 Forged Forging steam turbine impeller wheels turbine discs disks blisks, and UNS N19903 forged forging parts forged forging pieces forged forging steel components pieces material as per the requirement of the client

UNS N19903 is A nickel-iron-cobalt alloy with additions of niobium, titanium, and aluminum for precipitation hardening. The alloy combines high strength with a low and constant coefficient of thermal expansion at temperatures to about 800°F (430°C). It also has a constant modulus of elasticity and is highly resistant to thermal fatigue and thermal shock. Used in gas turbines for rings and casings.

Limiting Composition, wt % of UNS N19903

Nickel ..........................................................................36.0-40.0

Cobalt..........................................................................13.0-17.0

Aluminum ....................................................................0.30-1.15

Titanium.......................................................................1.00-1.85

Niobium.......................................................................2.40-3.50

Iron ...............................................................................Balance

Heat treatment of UNS N19903 is as follows:

Solution treatment before age-hardening should be performed in the 1500-1800°F (815-980°C) range, depending on the product and prior condition. For optimum

mechanical properties, an age-hardening treatment of 1325°F (720°C)/8h, F.C. at 100°F (56°C)/h to 1150°F (620°C)/8 h, A.C. is recommended