Corrosion Resistant Alloy 188 GH5188 GH188 Rod For Gas Turbine Components
Corrosion-Resistant Alloy 188 Rod for Gas Turbine Components
Alloy 188 rod, composed of cobalt, nickel, chromium, and tungsten, is designed for high-performance applications that require excellent resistance to heat, oxidation, and corrosive environments. With a proven track record in aerospace and industrial applications, Alloy 188 offers superior mechanical properties at elevated temperatures. It withstands prolonged exposure to harsh conditions, including temperatures up to 2000°F (1095°C). This alloy is ideal for manufacturing combustion components, heat exchangers, and other high-stress parts in gas turbines and power generation systems.
Chemical Composition and Key Properties
| Element | Composition (%) |
|---|---|
| Cobalt (Co) | 39 |
| Nickel (Ni) | 22 |
| Chromium (Cr) | 22 |
| Tungsten (W) | 14 |
| Iron (Fe) | Max 3 |
| Manganese (Mn) | Max 1.25 |
| Silicon (Si) | 0.35 |
| Carbon (C) | 0.10 |
| Lanthanum (La) | 0.03 |
| Boron (B) | Max 0.015 |
Mechanical Properties
| Property | Value |
|---|---|
| Yield Strength (0.2% Offset) | 70.1 ksi (483 MPa) |
| Ultimate Tensile Strength | 143.8 ksi (991MPa) |
| Elongation at Break | 50.6% |
| Hardness | Rockwell B 85-95 |
Physical Properties
| Property | Value |
|---|---|
| Density | 8.98 g/cm³ |
| Melting Point | 1315-1410°C |
| Specific Heat | 0.096 Btu/lb·°F |
| Thermal Conductivity | 10.4 W/m·K |
Applications of Alloy 188 Rod
Alloy 188 rod is particularly suited for:
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Aerospace components (e.g., combustion cans, transition ducts)
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Gas turbine engine components
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Power generation systems
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High-temperature chemical processing equipment
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Marine applications requiring high heat and corrosion resistance
FAQs About Alloy 188 Rod
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What is the maximum temperature at which Alloy 188 can perform?
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Alloy 188 maintains excellent mechanical properties at temperatures up to 2000°F (1095°C), making it ideal for high-temperature applications in aerospace and energy industries.
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Can Alloy 188 be welded?
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Yes, Alloy 188 can be welded using various methods, including TIG, MIG, electron beam, and resistance welding. Proper heat treatment is necessary after welding to maintain its properties.
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What industries benefit the most from Alloy 188 rod?
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Alloy 188 is commonly used in the aerospace, power generation, and chemical processing industries, where high-strength and high-temperature resistance are critical.
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