Haynes 188 Alloy is a solid-solution-strengthened material that excels in high-temperature strength and fabricability at room temperature. It is particularly effective for long-term applications at temperatures of 1200°F (650°C) or higher. Haynes 188 is notably stronger than nickel-base solid-solution-strengthened alloys and significantly outperforms simple nickel-chromium or iron-nickel-chromium heat-resistant alloys. This superior strength can allow for a reduction in section thickness when Haynes 188 is used as a substitute for these materials.
Specifications
Haynes 188 Alloy is covered by the following specifications:
- UNS R30188
- Rod, Bar, Wire, and Forging Stock: AMS 5772
- Plate, Sheet, and Strip: AMS 5608
- Welding Wire: AMS 5801
Chemical Composition
| Element | Min (wt%) | Max (wt%) |
|---|---|---|
| Chromium (Cr) | 20.0 | 24.0 |
| Nickel (Ni) | 20.0 | 24.0 |
| Cobalt (Co) | – | Balance |
| Tungsten (W) | 13.0 | 16.0 |
| Lanthanum (La) | 0.02 | 0.12 |
| Boron (B) | – | 0.015 |
| Carbon (C) | 0.05 | 0.15 |
| Iron (Fe) | – | 3.0 |
| Manganese (Mn) | – | 1.25 |
| Silicon (Si) | 0.20 | 0.50 |
| Phosphorus (P) | – | 0.02 |
| Sulfur (S) | – | 0.015 |
Physical Properties
- Density: 9.14 g/cm³
- Melting Point: 1300℃ – 1330℃
Mechanical Properties at Room Temperature
Alloy Status: Solution Treatment
| Property | Value |
|---|---|
| Tensile Strength (Rm) | 963 N/mm² |
| Yield Strength (Rp0.2) | 446 N/mm² |
| Elongation (A5) | 55% |
Key Benefits
- High-Temperature Strength: Excellent performance in high-temperature environments, suitable for long-term applications at 1200°F (650°C) or more.
- Fabricability: Good formability and workability at room temperature.
- Superior Strength: Stronger than nickel-base solid-solution-strengthened alloys and simple nickel-chromium or iron-nickel-chromium heat-resistant alloys, allowing for reduced section thickness in applications.
Applications
Haynes 188 Alloy is commonly used in a variety of high-temperature applications, including:
- Aerospace Components: Flame holders, transition ducts, afterburner liners, and combustion cans.
- Gas Turbine Engines: Components that operate in the hot sections of engines.
- Chemical Processing: Equipment that requires high strength and corrosion resistance at elevated temperatures.
- Power Generation: High-temperature applications in power plants.
For more information:
Website: https://www.aluminiumwala.com
Contact us: 9167347029
Email ID: [email protected]