Inconel 601 Superalloy
Inconel 601 is a nickel-chromium superalloy renowned for its excellent high-temperature oxidation resistance and corrosion resistance. Below is a detailed introduction:
Chemical Composition
Nickel (Ni): Minimum 58%
Chromium (Cr): 21.0%-25.0%
Iron (Fe): Maximum 13%
Aluminum (Al): 1.0%-1.7%
Carbon (C): Maximum 0.10%
Manganese (Mn): Maximum 1.0%
Sulfur (S): Maximum 0.015%
Physical Properties
Density: Approximately 8.11 g/cm³
Melting Point: 1350-1410°C
Specific Heat Capacity: 0.475 J/g-°C
Thermal Conductivity: 11.3 W/m-°C
Electrical Resistivity: 1.45 μΩ·m
Mechanical Properties
Tensile Strength: Minimum 650 MPa
Yield Strength (0.2% offset): Minimum 300 MPa
Elongation: Minimum 30%
Brinell Hardness (annealed condition): Maximum 160
Performance Characteristics
Exceptional High-Temperature Oxidation Resistance: Maintains oxidation resistance at temperatures up to 1180°C by forming a dense, spallation-resistant oxide film.
Carburization Resistance: Exhibits good resistance to carburization in high-temperature environments.
Sulfur-Containing Atmosphere Resistance: Performs well in high-temperature sulfur-rich atmospheres with strong oxidation resistance.
High-Temperature Strength: Retains adequate ductility even after long-term service at elevated temperatures.
Processing Performance
Hot and Cold Workability: Suitable for both hot working and cold working processes.
Weldability: Easily weldable. For welding, it is recommended to use 601 alloy gas tungsten arc welding (GTAW) filler wires with matching compositions to ensure the oxidation resistance of welded joints.
Application Fields
Aerospace: Gas turbine components, combustion chamber liners, and heat exchangers.
Chemical Industry: Reaction vessels and in-furnace fixtures.
Power Generation: Boiler components, superheater tubes, and steam reformer tubes in power plants.
Petrochemical Industry: Catalyst support grids, thermocouple protection sleeves, and burner components.