AMS 5772 Haynes 188 Round Bar is a cobalt-based superalloy valued for its ability to perform in extreme heat. It consists of cobalt (39-40%), nickel (20-24%), chromium (20-24%), and tungsten (13-16%). Our alloy 188 round bar complies with the AMS 5772 SAE International standard. Commonly known as Haynes 188, it is recognised for strength and oxidation resistance at very high temperatures. It can also resist sulfate deposit hot corrosion and gaseous sulfidation. Due to these properties, alloy 188 is suitable for harsh environments to maintain stability and strength. Parag Metals supplies this alloy in bars, forgings, and flash-welded rings, usually in an annealed condition.
This alloy offers excellent benefits for demanding applications. It combines high strength at temperatures up to 1800°F with resistance to oxidation at temperatures reaching 2000°F. It also retains good ductility after ageing, which makes it easier to work with during fabrication. Haynes 188 has a tensile strength of approximately 125,000 psi (862 MPa) and a yield strength of 55,000 psi (379 MPa) at an annealed condition. These qualities make AMS 5772 Round Bar a trusted choice for industries that face extreme operating conditions.
AMS 5772 Haynes 188 Round Bar is widely used in aerospace, marine, and high-performance fields.
In aerospace, it is common in gas turbine engine parts, combustion chambers, flame holders, liners, exhaust frames, and afterburners.
In marine environments, it holds up well against harsh operating stresses. It is mainly found in shipbuilding, marine propulsion systems, marine exhaust systems, etc.
Here, the alloy 188 finds its application in furnaces & heaters, piping & tubing, valves, fittings, reactors, and heat exchangers.
Here at Parag Metals, we provide high-quality Haynes AMS 5772 Haynes 188 round bar in various forms, like forgings and rings. We supply the alloy 188 bars in solution heat-treated and precipitation-aged conditions. The table given below explains the specifications in detail.
| Alloy | Haynes 188 |
|---|---|
| Product Forms | AMS 5772 Bars, Forgings, Flash-welded Rings, and Stock for forging or heading |
| Condition | Solution Heat Treated and Precipitation Aged |
| Heat Treatment | Equalizing / Solution: 1625 °F ± 25 °F (885 °C ± 14 °C) for 24 h, air cool Precipitation Age: 1300 °F ± 25 °F (704 °C ± 14 °C) for 20 h, air cool |
| Typical Applications | Marine Engineering, Chemical Processing, Oil and Gas |
The AMS 5772 bars are basically bars made from the austenitic Alloy 188 material. The chemical composition of these bars is cobalt, nickel, chromium, and tungsten. This bar also includes lanthanum, which improves the formation of the oxide layer and increases oxidation resistance. It is a crucial alloy for the aerospace industry.
AMS 5772 rod refers to a rod made from the same alloy 188. It is an austenitic cobalt-nickel-chromium-tungsten alloy with high oxidation resistance, superior high-temperature performance, and good resistance to sulfate deposit hot corrosion, molten chloride salts, and gaseous sulfidation. It is mainly applied in military and commercial gas turbine engines of the aerospace industry.
The base metal of the Haynes 188 alloy is cobalt (approximately 39-40%).
The key combination of properties that makes AMS 5772 suitable for extreme environments is good high-temperature strength, oxidation resistance, and corrosion resistance.
The maximum temperature at which Haynes 188 retains its high strength is around 2000°F (1095 oC).
AMS 5772 is commonly used in aerospace parts like combustion chambers, afterburners, gas turbine engine parts, and exhaust frames.
The AMS 5772 round bar is supplied in solution heat-treated and precipitation-aged conditions.
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