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

Aluminum
Boron		0.012 max
Carbon
Chromium		1 max
Cobalt		12 - 16
Copper		0.5 max
Iron		Balance
Manganese		1 max
Nickel		35 - 40
Niobium		4.3 - 5.2
Phosphorus		0.015 max
Silicon
Sulphur		0.015 max
Titanium

UNS N19909 is a nickel-cobalt-iron alloy with high strength and a stable, or constant, coefficient of thermal expansion and constant modulus of elasticity.

UNS N19909 utilizes the constant coefficient of expansion characteristic of this alloy for uses such as gas turbine shrouds, high temperature bolting and gauge blocks.

Machinability Conventional machining techniques used for iron based alloys may be used. This alloy does work-harden during machining and has higher strength and "gumminess" not typical of steels. Heavy duty machining equipment and tooling should be used to minimize chatter or work-hardening of the alloy ahead of the cutting. Most any commercial coolant may be used in the machining operations. Water-base coolants are preferred for high speed operations such as turning, grinding, or milling. Heavy lubricants work best for drilling, tapping, broaching or boring. Turning: Carbide tools are recommended for turning with a continuous cut. High-speed steel tooling should be used for interrupted cuts and for smooth finishing to close tolerance. Tools should have a positive rake angle. Cutting speeds and feeds are in the following ranges: For High-Speed Steel Tools For Carbide Tooling Depth Surface Feed Depth Surface Feed of cut speed in inches of cut speed in inches inches feet/min. per rev. inches feet/min. per rev. 0.250" 25-35 0.030 0.250" 150-200 0.020 0.050" 50-60 0.010 0.050" 325-375 0.008 Drilling: Steady feed rates must be used to avoid work hardening due to dwelling of the drill on the metal. Rigid set-ups are essential with as short a stub drill as feasible. Heavy-duty, high-speed steel drills with a heavy web are recommended. Feeds vary from 0.0007 inch per rev. for holes of less than 1/16" diameter, 0.003 inch per rev. for 1/4" dia., to 0.010 inch per rev. for holes of 7/8"diameter. Milling: To obtain good accuracy and a smooth finish it is essential to have rigid machines and fixtures and sharp cutting tools. High-speed steel cutters such as M-2 or M-10 work best with cutting speeds of 30-40 feet per minute and feed of 0.004"-0.006" per cutting tooth. Grinding: The alloy should be wet ground and aluminum oxide wheels or belts are preferred.