UNS N19909
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We could produce UNS N19909 Forged forging Round Bars Rods Square rectangular rectangle turbine blades Flat Bars,UNS N19909 Forged Forging Steel Hollow Bars Forged Forging Sleeves Bushes Bushing Pipes Piping tubes tubings barrels Casing Cases Shells cylinders hubs housings,UNS N19909 Forged Forging Rings Seamless Rolled Steel Rings,UNS N19909 forged forging Turbine Seals rings,Turbine casings, compressors Turbine shrouds,UNS N19909 Forged Forging Steel Blocks Discs Disks Plates ,UNS N19909 Forging forged steel Gas Steam Turbine Valve Spindles Stems Rods,UNS N19909 Forged Forging steam turbine impeller wheels turbine discs disks blisks, and UNS N19909 forged forging parts forged forging pieces forged forging steel components pieces material as per the requirement of the client

chemical compostion of UNS N19909



0.012 max



1 max


12 - 16


0.5 max




1 max


35 - 40


4.3 - 5.2


0.015 max



0.015 max


In the age-hardened condition, UNS N19909 has high mechanical properties at room temperature and retains much of its strength at temperatures to about 1200°F (650°C). All mechanical properties reported here are for material given the standard heat treatment:

Solution treat at 1800°F (980°C)/1 hr, air cool, plus age harden at 1325°F (720°C)/8 h, furnace cool at 100°F (55°C)/h to 1150°F (620°C)/8 h, air cool. The effects of temperatures to 1400°F (760°C) on tensile properties are shown in Figure 2. Major decreases in strength do not occur until temperatures over 1200°F (650°C), where age hardening begins to lose its effectiveness.Previously developed low-expansion superalloys may be susceptible to grain-boundary oxygen embrittlement at high temperatures and consequent poor notch-bar rupture strength. Special processing or long, over-aging heat treatments are

needed to alleviate the problem. UNS N19909 achieves, primarily through its silicon content, good notch-rupture properties with conventional processing and heat treatment. Typical rupture strength of UNS N19909is shown in The notch-bar tests, conducted at 1000°F (540°C), showed strength levels comparable to those obtained with smooth-bar tests.

Stress-rupture test conditions can greatly affect the measured rupture strengths of low-expansion superalloys. Alignment

of the specimen during testing is especially significant.