Incoloy is a family of nickel-iron-chromium-based superalloys developed and commercialized by Special Metals Corporation (now a part of Huntington Ingalls Industries). These alloys are known for their exceptional corrosion resistance, high-temperature strength, and good fabricability. Huaxiao Metal Manufacturer is professional and experienced to producing and processing the alloy, our company is personalized service for every customers. Incoloy alloys are typically used in applications where high temperature and corrosive environments are present. They are designed to provide long-term stability and durability in demanding conditions. Welcome to inquiry and ask for price.
Incoloy 330 and Incoloy 945X Specifications
Chemical Composition
Please note that the chemical compositions provided are approximate ranges and may vary slightly depending on the specific manufacturing process and batch. Huaxiao Metal Supplier has the solutions for customer sloving any question.
Material | Nickel (Ni) | Chromium (Cr) | Iron (Fe) | Molybdenum (Mo) | Copper (Cu) | Other Elements |
---|---|---|---|---|---|---|
Incoloy 330 | 34.0% – 37.0% | 17.0% – 20.0% | Balance* | 1.0% – 1.75% | ≤1.00% | Silicon (Si): 0.75% – 1.50%, Manganese (Mn): ≤2.00%, Carbon (C): ≤0.08%, Phosphorus (P): ≤0.030%, Sulfur (S): ≤0.030%, Tin (Sn): ≤0.025%, Lead (Pb): ≤0.005% |
Incoloy 945X | 45.0% – 55.0% (some sources indicate 40.0% – 50.0%) | 19.5% – 23.0% | Balance* | 3.0% – 4.0% | 1.5% – 3.0% | Niobium (Nb): 2.5% – 4.5%, Titanium (Ti): 0.5% – 2.5% (some sources indicate 0.6% – 1.2%), Aluminum (Al): 0.01% – 0.7%, Manganese (Mn): ≤1.0%, Silicon (Si): ≤0.5%, Carbon (C): ≤0.04% (some sources indicate ≤0.03%), Sulfur (S): ≤0.03%, Phosphorus (P): ≤0.03% |
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Physical properties
Material | Density (g/cm³) | Melting Point (°C) | Thermal Conductivity (W/(m·K) @ 20°C) | Other Physical Properties |
---|---|---|---|---|
Incoloy 330 | Approximately 8.0 | 1300 – 1350 | Not specifically provided, but typically within the range of nickel-based alloys | Good corrosion resistance in oxidizing and reducing environments, high strength at elevated temperatures |
Incoloy 945X | 8.14 | 1350 – 1400 | 11.2 | High corrosion resistance in aggressive environments, such as those containing hydrogen sulfide and chloride ions, high strength and stable physical properties at temperatures up to 600°C |
Please note that the physical properties provided are approximate values and may vary slightly depending on the specific manufacturing process, heat treatment, and batch. For precise information, it is advisable to consult with Huaxiao Metal supplier or manufacturer. Additionally, the thermal conductivity value for Incoloy 330 is not specifically provided here, but it can typically be expected to be within the range of other nickel-based alloys.
Mechanical Properties
Material | Tensile Strength (Ultimate) (MPa) | Yield Strength (0.2% Offset) (MPa) | Elongation at Break (%) | Hardness (Rockwell B) | Other Mechanical Properties |
---|---|---|---|---|---|
Incoloy 330 | Not specifically provided, but typically high | Not specifically provided, but typically moderate to high | Good ductility | Not specifically provided, but typically within the range of nickel-based alloys | High resistance to creep and stress rupture at elevated temperatures, good fatigue strength |
Incoloy 945X | Minimum 862 (depending on heat treatment and product form) | Minimum 620 (depending on heat treatment and product form, typically 140 ksi or higher for high-strength grades) | Varies with product form and heat treatment, but generally good | Not specifically provided | Excellent corrosion resistance in sour gas and other aggressive environments, high strength and stability at high temperatures and pressures |
Please note that the mechanical properties provided are approximate values and may vary significantly depending on the specific heat treatment, product form, and batch. For precise information, it is advisable to consult with Huaxiao Metal supplier or manufacturer. Additionally, the tensile strength, yield strength, and elongation values provided for Incoloy 945X are minimum values and may be higher depending on the specific heat treatment and product form. The hardness value for both materials is not specifically provided here, but it can typically be expected to be within the range of other nickel-based alloys.



Incoloy 330 and Incoloy 945X Advantages
- High-Temperature Strength:
- With a melting point ranging from 1350-1400°C, Incoloy 330 maintains stable performance at elevated temperatures. Its high-temperature strength ensures that it can withstand the thermal stresses encountered in demanding applications, such as those in the aerospace and petrochemical industries.
- Good Mechanical Properties:
- Incoloy 330 possesses good mechanical properties, including high tensile strength (approximately 550-700 MPa at high temperatures) and good ductility. These properties make it suitable for a wide range of fabrication processes, including welding and forming.
- Low Thermal Expansion Coefficient:
- With a density of 8.1 g/cm³, Incoloy 330 exhibits a low thermal expansion coefficient at high temperatures. This helps to resist thermal stresses and ensures dimensional stability in high-temperature applications.
- Antioxidant Properties:
- Incoloy 330 has good antioxidant properties, which enable it to resist oxidation and thermal corrosion at high temperatures. This makes it an excellent choice for applications in environments where high temperatures and oxidative conditions are present.
- High Strength and Corrosion Resistance:
- Incoloy 945X is a high-strength, corrosion-resistant alloy designed for use in harsh environments. Its nickel-iron-chromium base, combined with additions of molybdenum, copper, niobium, titanium, and aluminum, enhances its resistance to stress corrosion cracking caused by chlorides and provides excellent general corrosion resistance to reducing media.
- Excellent Weldability:
- Incoloy 945X can be welded using various methods, including tungsten inert gas (TIG) welding, shielded metal arc welding (SMAW), and gas metal arc welding (GMAW). This makes it suitable for applications requiring complex fabrication and welding processes.
- Stress-Cracking Resistance:
- The alloy’s resistance to stress-cracking in hydrogen sulfide-rich environments makes it ideal for use in downhole and surface gas well components, including tubular products, valves, hangers, running tools, and packers.
- Compliance with Industry Standards:
- Incoloy 945X meets the requirements of NACE MR0175 / ISO 15156-3 and is suitable for use in NACE VII and VI-450°F service conditions. This ensures its compatibility with industry standards and regulations, making it a reliable choice for critical applications.
Incoloy 330 and Incoloy 945X Applications
The specific composition and properties of Incoloy alloys can vary depending on the grade. Common grades such as Incoloy 800, Incoloy 800H, and Incoloy 825 offer different combinations of corrosion resistance, high-temperature strength, and fabricability, making them suitable for a wide range of applications.
Incoloy alloys are high-performance nickel-based superalloys that provide exceptional corrosion resistance, high-temperature strength, and good fabricability. They are widely used in industries where demanding conditions require materials with superior properties.
- Petrochemical Industry: Components in refineries and chemical plants that are exposed to high temperatures and aggressive chemicals.
- Nuclear Industry: Parts in nuclear reactors and associated equipment that require high-temperature stability and resistance to radiation.
- Aerospace Industry: Turbine engine components, combustion chambers, and other high-temperature parts in aircraft and spacecraft.
- Energy Industry: Equipment in power plants, including turbines, boilers, and heat exchangers, that operate at high temperatures.
- Marine Industry: Components in ships and offshore platforms that are subject to corrosion and high-temperature conditions.
In Conclusion
Huaxiao Metal Supplier provides the professional services and technology to producing the incoloy alloy to around the world, please contact us to get more details about the alloy. both Incoloy 330 and Incoloy 945X play crucial roles in industries where materials must withstand extreme conditions, such as high temperatures, pressures, and corrosive environments. Their unique combinations of mechanical properties, corrosion resistance, and high-temperature strength make them indispensable in various critical applications. Alloy applications are various and our company has the solutions for personalized to customers, if you want to learn about more informations ,welcome to inquiry us.