Alloy 188

We could produce Alloy 188 forging parts,Alloy 188 forged rings, Alloy 188 Rolled Rings,Alloy 188 forging flanges, Alloy 188 forging round bars, Alloy 188 forged disks, Alloy 188 forging bushings,Alloy 188 forging discs,Alloy 188 forged tubes, Alloy 188 forging sleeves,Alloy 188 forging tube sheets, Alloy 188 forging shafts,Alloy 188 forging pipes as per the requirement of the client
Alloy 188 is cobalt-base alloy with excellent high temperature strength and great oxidation resistance up to 2000° F.
We could delivery Alloy 188 forging material as per the standard of AMS 5772
We use EAF+VOD-ESR melting methods to melt the material of Alloy 188
Alloy 188 is normally solution heat-treated at 2150°F +/-25°F (1177°C +/-14°C) and rapid air cooled or water quenched. Bright annealed products are cooled in hydrogen. Alloy 188 can be easily strengthened by cold deformation. Strengthening is further enhanced by aging the cold-worked structure near 1000°F (540°C) for a period of 4 to 16 hours
As per machining of Alloy 188 material, It is smilar with stainless grades haynes 25,haynes 230 and so on.
Alloy 188 are oxidation and corrosion resistant materials well suited for service in extreme environments subjected to pressure and heat
The chemical composition of Alloy 188 is as follows

Element	Min	Max
Carbon	0.05	0.15
Manganese	--	1.25
Silicon	0.20	0.50
Phosphorus	--	0.02
Sulfur	--	0.015
Chromium	21.0	23.0
Nickel	20.0	24.0
Tungsten	13.0	15.0
Lanthanum	0.03	0.12
Boron	--	0.015
Iron	--	3.0
Cobalt	Bal.

 
The mechenical property of Alloy 188 is as follows:

Test Temp., °F(°C)	Ultimate Tensile Strength, ksi(MPa)	Yield Strength at 0.2% offset, ksi(MPa)	Elongation in 2", %
70 (21)	137.2 (946)	67.3 (464)	53
1000 (538)	108.5 (748)	42.0 (290)	61

Due to special mechanical properties of Alloy 188 forging parts, there are many wide uses as followings:
Alloy 188 seamless rolled rings and  Alloy 188 forging shafts that is used in chemical pump,plunger pumps.
Alloy 188 forged shafts,Alloy 188 forging pipes, Alloy 188 forged tubes ,forged tube sheets, forged flanges that are used in pressure vessel ,air receivers,Shell & Tube Heat Exchangers
Alloy 188 forging shafts,Alloy 188 forging flanges ,Alloy 188 forged rings,Alloy 188 forging pipes that is used in transition ducts, combustor cans, spray bars, flame-holders and afterburner liners in jet engines
Alloy 188 forged bushing,Alloy 188 forged sleeves,Alloy 188 forged disks,Alloy 188 forged discs that is used in Offshore and onshore industry, such as subsea and deepwater offshore oil production systems, industrial air compressors, power generators and nitrogen generators
Alloy 188 open die forging parts,forging pieces,forging nozzles forged crankshaft that is used in turbine applications such as flame holders, liners, combustors and transition ducts.
Alloy 188 forged valve stems, forged valve parts, forged valve seat rings,forged valve blocks,forged bodies that are used in ball valves, check valves, strainers ,globe valve, gate valve,Plug valve and so on
Alloy 188 forging rings, Alloy 188 forging spindles, Alloy 188 forging bars,Alloy 188 forging gears that are used in power transmission, turbine,gas compressor,gear boxes and so on
Alloy 188 forged products,Alloy 188 forged nozzles,Alloy 188 forging eccentric shaft that are used on processing units,mechanical equipment, crystalizer equipment,Wellhead and Christmas tree
Alloy 188 forged wheels, forged manifold,forging rolls that are used in shipping building,heavy machinery.Paper and Pulp Industries,Pharmaceutical & Biochemistry
Our Alloy 188 forged parts will be Ultrasonic testing as per standard, EN10228-3,Sep1921,ASTM A388 and so on
We could supply Alloy 188 super allloy forging parts certificate as per the standard of EN10204-3.1 or EN10204-3.2 of third party
Please send us the size or drawing of Alloy 188 forged material that you need, we are glad to quote the best price for your side