Corrosion and Oxidation-Resistant Inconel 617 Welding Wire/UNS N06617/2.4663/NiCr23Co12Mo for Acidic and Caustic Solutions
Inconel 617 (UNS N06617, 2.4663, NiCr23Co12Mo) is a high-performance nickel-chromium-cobalt-molybdenum alloy designed for use in applications involving extreme temperatures and highly corrosive environments. It combines excellent high-temperature strength with exceptional resistance to oxidation, carburization, and thermal-fatigue, making it ideal for industries such as aerospace, power generation, and chemical processing.
Inconel 617 (UNS N06617, 2.4663) is a nickel-chromium-cobalt-molybdenum alloy that excels in high-temperature strength, oxidation resistance, and resistance to carburization. Its performance in extreme thermal and corrosive environments makes it ideal for industries such as aerospace, power generation, chemical processing, and furnace construction. With excellent weldability, formability, and resistance to thermal-fatigue, Inconel 617 is a critical material for applications requiring long-term reliability and durability at elevated temperatures.
Trade Code
Series | NAME | GB | ISO/IEC | UNS | DIN EN/ DIN | JIS |
Inconel | Inconel 617 | GH4145 | NiCr22Co12Mo9 | N06617 | W.Nr. 2.4663/NiCr23Co12Mo | NiCr23Co12Mo |
Chemical Composition
% | Ni | Cr | Mo | Fe | Mn | C | Si | Al | Ti | Co | Cu | B | S |
Min | | 20 | 8 | | | 0.05 | | 0.8 | | 10 | | | |
Max | 44.5 | 24 | 10 | 3.00 | 1.0 | 0.15 | 1.0 | 1.5 | 0.6 | 15 | 0.50 | 0.01 | 0.02 |
Physical Properties:
Density(g/cm³) | 8.4 |
Melting Range(℃) | 1330-1380 |
Typical mechanical properties | Tensile strength Rm N/mm² | Yield strength RP 0.2 N/mm² | Elongation A5 % | Brinell Hardness HB |
Solution treatment | 830 | 414 | 30 | ≤290 |
Key Features:
Inconel 617 wire, identified by UNS N06617/2.4663/NiCr23Co12Mo, is a high-performance nickel-based superalloy known for its exceptional high-temperature strength and resistance to oxidation and corrosion. Here are the key features of Inconel 617 wire:
- High-Temperature Strength: Inconel 617 maintains its strength at elevated temperatures, making it suitable for applications in extreme thermal environments. It retains around 80% of its tensile strength at temperatures as high as 600°C (1112°F).
- Oxidation and Corrosion Resistance: The alloy's composition, which includes chromium, aluminum, and nickel, provides excellent resistance to oxidation and corrosion, particularly at high temperatures. It rapidly forms a protective oxide layer that enhances its resistance to these factors up to 1150°C (2100°F).
- Creep Resistance: Inconel 617 exhibits high creep-rupture strength at temperatures up to 980°C (1800°F), which is crucial for long-term applications where the material is subjected to stress over extended periods.
- Thermal Expansion: Compared to other austenitic alloys, Inconel 617 has a lower coefficient of thermal expansion, which reduces stresses from differential expansion when the alloy is coupled with carbon steels or low-alloy steels.
- Mechanical Properties: The wire retains high tensile strength and ductility even at high temperatures, preventing brittleness. The yield strength only declines by about 20% above 600°C (1112°F).
- Chemical Composition: Inconel 617 contains a balanced composition of nickel, chromium, cobalt, molybdenum, aluminum, and other elements that contribute to its superior properties.
- Weldability: The alloy is readily formed and welded by conventional techniques, making it a versatile choice for various applications.
- Density and Melting Point: Inconel 617 has a density of 8.36 g/cm³ and a melting point range of 1330 – 1380 °C (2430 – 2510 °F), which is significant for applications requiring high strength-to-weight ratios.
- Design Flexibility: Engineers can use Inconel 617 to create complex geometries and thin-walled structures that are both strong and lightweight, making it particularly valuable in industries such as aerospace and power generation where weight and performance are critical considerations.
These features make Inconel 617 wire an ideal material for demanding applications in gas turbines, power generation, chemical production, and petrochemical processing, where high-temperature strength and corrosion resistance are paramount.
Applications:
Inconel 617 is used in a wide range of high-performance applications, including:
- Aerospace: Gas turbines, combustion chambers, and turbine blades, where high strength and oxidation resistance at elevated temperatures are critical.
- Power Generation: Gas turbines, heat exchangers, and components exposed to high-temperature, oxidizing environments.
- Chemical Processing: Equipment used in high-temperature chemical reactions, including reactors, heat exchangers, and catalytic processes.
- Industrial Furnaces: Components like furnace linings, burners, and radiant tubes that need resistance to thermal cycling and corrosion.
- Environmental Control: Parts in power plants, incinerators, and other systems that handle high-temperature flue gases.
Common Forms:
- Inconel 617 is available in various forms, including wire, sheet, plate, tube, and welding rods, to accommodate different manufacturing and repair needs in high-temperature applications.


