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Cobalt Haynes 188
Haynes 188 is a high-performance cobalt-chromium-tungsten alloy designed for exceptional strength and oxidation resistance at elevated temperatures. The alloy maintains mechanical integrity under extreme thermal exposure, making it well suited for aerospace, gas turbine, and high-temperature industrial applications.
This alloy offers outstanding resistance to oxidation, thermal fatigue, and hot corrosion, particularly in environments involving high heat and cyclic temperature loading. Haynes 188 is non-magnetic and retains strength at temperatures where many nickel and stainless alloys begin to lose performance.
Applications of Haynes 188
Haynes® 188 is commonly used in demanding environments such as:
- Aerospace hot-section components
- Gas turbine engines and exhaust systems
- Combustion liners and transition ducts
- High-temperature structural assemblies
- Industrial furnace and thermal processing equipment
Its ability to maintain strength and resist oxidation at elevated temperatures makes it a preferred choice for extreme service conditions.
Forms & Supply Capabilities
Haynes® 188 is typically supplied in product forms such as sheet, plate, bar, and other wrought configurations depending on application and specification requirements. Material condition, processing, and certification are selected to meet performance and compliance needs.
Tech Steel & Materials supplies Haynes 188 with full material traceability, certifications, and documentation. Our team supports material selection, processing requirements, and compliance for aerospace and industrial applications.
What is Haynes 188 used for?
Haynes 188 is used in high-temperature aerospace and industrial applications where strength, oxidation resistance, and thermal stability are required. Common uses include turbine components, exhaust systems, and hot-section assemblies.
Is Haynes 188 suitable for high-temperature applications?
Yes. Haynes 188 is specifically designed for elevated-temperature service and maintains strength and oxidation resistance at temperatures exceeding those tolerated by many stainless steels and nickel alloys.
How does Haynes 188 compare to nickel alloys?
Compared to many nickel-based alloys, Haynes 188 offers superior resistance to thermal fatigue and oxidation at very high temperatures, particularly in cyclic heating environments.
Select AMS
| AMS Number | Alloy | Type | UNS | Cross Ref. Spec | Misc./Shape | |
|---|---|---|---|---|---|---|
| AMS 5608 Plate | Haynes 188 | Cobalt | R30188 | - | Plate |
|
| AMS 5608 Sheet | Haynes 188 | Cobalt | R30188 | - | Sheet |
|
| AMS 5608 Strip | Haynes 188 | Cobalt | R30188 | - | Strip |
|
| AMS 5772 Bar | Haynes 188 | Cobalt | R30188 | - | Bar |
|
| AMS 5772 Custom Tube | Haynes 188 | Cobalt | R30188 | - | Custom Tube |
|
| AMS 5772 Forging | Haynes 188 | Cobalt | R30188 | - | Forging |
|
| AMS 5772 Ring | Haynes 188 | Cobalt | R30188 | - | Ring |
|
| AMS 5801 | Haynes 188 | Cobalt | R30188 | - | Wire |
|
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