ThePipingMart Blog Grades Super Alloy A-286 – Composition, Properties and Uses

Super Alloy A-286 – Composition, Properties and Uses

Super Alloy A-286

Super Alloy A-286 is a popular high-performance alloy with excellent mechanical and physical properties. It is highly durable and can withstand extreme temperatures and conditions, making it suitable for various applications. This article will explore the composition, properties, uses, corrosion resistance, heat treatment, machining, and welding of Super Alloy A-286.

Super Alloy A-286 Composition

Super Alloy A-286 is composed of iron, nickel, and chromium. Additionally, it contains traces of molybdenum, titanium, and vanadium. The austenitic structure of the alloy makes it durable and resistant to corrosion.

Super Alloy A-286 Mechanical Properties

Super Alloy A-286 displays high tensile strength, creep resistance and good ductility. It can handle temperatures of up to 1300 degrees Fahrenheit, making it ideal for high-performance applications such as turbine blades, exhaust systems, and internal components of jet engines.

Super Alloy A-286 Physical Properties

The density of Super Alloy A-286 is about 7.8 g/cc. It has a melting point of 2500°F and a boiling point of 5700°F. It is magnetic and has low thermal conductivity.

Super Alloy A-286 Uses

Super Alloy A-286 is widely used in the aerospace, automotive, and petroleum industries. Specifically, it produces aircraft and jet engine components, exhaust systems, and power plant turbines. It is mostly used in high-temperature applications.

Super Alloy A-286 Corrosion resistance

Due to its excellent corrosion resistance, Super Alloy A-286 is used to produce chemical processing equipment. It is highly resistant to a wide range of chemicals, including sulfuric acid, hydrochloric acid, and nitric acid.

Super Alloy A-286 Heat treatment

The heat treatment of Super Alloy A-286 involves three stages: solution annealing, rapid air cooling, and aging. The process enhances the mechanical properties of the alloy, allowing it to perform well under high-stress environments.

Super Alloy A-286 Machining

Super Alloy A-286 is quite difficult to machine due to its toughness and hardness. However, modern cutting tools and techniques have made it easier to machine. It is mainly machined in the annealed condition.

Super Alloy A-286 Welding

Super Alloy A-286 can be welded using gas tungsten arc welding, gas metal arc welding, and electron beam welding. However, due to its low thermal conductivity, it can be challenging to weld. Preheating is required to minimize cracking during the welding process.


Super Alloy A-286 is a high-performance alloy known for its incredible strength, durability, and ability to withstand extreme temperatures and environments. Its excellent properties make it ideal for high-temperature applications, especially in the aerospace and petroleum industries. Its resistance to corrosion and excellent mechanical properties have also made it a favourite material for manufacturing aircraft and jet engine components. The various heat treatment and welding techniques make this alloy’s use and machining ability flexible. It is, therefore, a suitable material for any design requiring high strength and durability.

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