Nimonic Alloy 263 is a high tempering nickel based alloy that have a very good strength and corrosion resistance properties which are highly desirable for high temperature applications. There are generally nickel, chromium, cobalt, and other elements in the chemical composition of their alloys, and the mechanical properties are more outstanding. Grades of Nimonic Alloy 263 may be different from one another, and their composition is modified according to certain requirements as well as a heat treatment. A key component that facilitates the selection of the appropriate Nimonic Alloy 263 by the engineers and the researchers is a comprehensive table and chart which provides the details of chemical composition, grades, and properties. A PDF document presenting this information gives the convenience of access and reference for people in aerospace, automotive and other industries were the high-temperature stability and reliability are vital.
Nimonic Alloy 263, a nickel-chromium-cobalt alloy of superior class is all-rounded in its strength and corrosion resistance, hence the ability to withstand high temperatures. Nickel is the main component of the alloy, usually 53%, followed by chromium (20-21%), cobalt (19-21%), molybdenum (5.60-6.10%), titanium (1.90-2.40%), aluminum (0.80-1.20%), and maximum 1. Because of that, this alloy can retain its mechanical properties at elevated temperatures and used for such components as gas turbine engine, industrial furnace and aerospace. Nimonic Alloy 263 is offered in various grades which are designed for particular purposes in high load working conditions.
Elements | Ni | Co | Cr | Mo | Ti | Fe | Mn | Al | Si | Cu | C | B | S |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Min (%) | - | 19 | 19 | 5.60 | 1.90 | - | - | - | - | - | 0.040 | - | - |
Max (%) | 49 | 21 | 21 | 6.10 | 2.40 | 0.70 | 0.60 | 0.60 | 0.40 | 0.20 | 0.080 | 0.0050 | 0.0070 |
Advantages:
High Strength: Superior yield and creep strength at elevated temperatures.
Corrosion Resistance: Resistant to oxidation and corrosion in high-temperature and corrosive environments.
Formability: Often exhibits good formability for various manufacturing processes.
Thermal Stability: Sustains dimensions under conditions of temperature changes.
Disadvantages:
Cost: Production process may be costly due to complex blend of alloy and manufacturing process.
Machinability: Toughness and hardness make machining difficult.
Limited Availability: Challenges in raw material availability may cause supply chain fluctuations.
Sensitivity to Processing: Requires specific conditions for processing to develop desired characteristics.
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