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Model No: Haynes 188 Cobalt Alloy Bar
AMS 5772 / UNS R30188 / Haynes 188 Cobalt Alloy Bar
AMS 5772 is an Aerospace Material Specification by SAE International, Specifies requirements for Haynes 188 alloy in bar form, including chemical composition, mechanical properties, heat treatment, and testing protocols.
Delivery :
FOB
minimum order :
100 kilograms
Supply Ability :
5000Tonkilograms / Month
Stock Time :
7-10Day
Country of Origin :
CHINA
Quantity :
AMS 5772 is an Aerospace Material Specification by SAE International, Specifies requirements for Haynes 188 alloy in bar form, including chemical composition, mechanical properties, heat treatment, and testing protocols.
Haynes 188 (UNS R30188) Cobalt Alloy Bar is known for its superior resistance to corrosion and oxidation at elevated temperatures, this is due to Its composition, containing significant quantities of cobalt and chromium. This allows Alloy 188 to be well suited for high temperature environments. The alloy maintains structural integrity when exposed to extreme heat, oxidising agents, and corrosive media that would rapidly degrade many conventional materials.
AMS 5772 products are generally used for formed and drawn parts requiring high strength up to 1800 °F (982 °C), in addition to oxidation resistance up to 2000 °F (1093 °C).
Chemical Composition
| Weight % | C | Mn | Si | P | S | Cr | Ni | W | La | B | Fe | Co |
| Alloy 188 | 0.05-0.15 | 1.25 max | 0.20-0.50 | 0.02 max | 0.015 max | 20-24 | 20-24 | 13-16 | 0.02-0.12 | 0.015 | 3 max | Bal |
Mechanical Properties
| Material | Temp°F | Yield Strength (0.2% Offset) min | Tensile Strength min | Elongation (%) | Hardness | ||
| ksi | MPa | ksi | MPa | ||||
| Alloy 188 Extruded Bar Solution Treated (AMS 5772) | RT | 55 | 379 | 125 | 862 | 45 | ≤302HB |
Applications
- Jet engine components (combustors, afterburners).
- Industrial gas turbines.
- High-temperature fasteners and seals.
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