ThePipingMart Blog Grades Inconel 602 Alloy – Composition, Properties, and Uses

Inconel 602 Alloy – Composition, Properties, and Uses

Inconel 602

The use of specialized alloys has transformed the manufacturing industry for the better. Industries from aviation to pharmaceuticals rely on alloys’ unique properties over traditional metals. One such alloy that has gained popularity in recent years is Inconel 602. Inconel 602 is a high-strength, heat-resistant alloy that can withstand extreme temperatures and harsh environments. In this blog, we will explore what Inconel 602 is, its composition, physical and mechanical properties, uses hardness, and heat treatment.

Inconel 602 Composition

Inconel 602 is a nickel-chromium-iron alloy with titanium, niobium, and aluminium additions. The composition of Inconel 602 makes it highly resistant to a wide range of corrosive environments, particularly oxidation, carburization, and sulfidation. The alloy retains its strength even at high temperatures, making it ideal for use in extreme environments.

Inconel 602 Physical Properties

Inconel 602 exhibits excellent physical properties, such as high-temperature corrosion resistance, good wear resistance, and excellent oxidation resistance. The alloy has a melting point of 1450°C (2640°F) and a density of 8.39 g/cm³ (0.303 lb/in³). Furthermore, Inconel 602 has a very low thermal expansion coefficient, making it ideal for high-temperature applications.

Inconel 602 Mechanical Properties

Inconel 602 exhibits excellent mechanical properties thanks to its unique composition. The alloy has an ultimate tensile strength of 770 MPa (112000 psi) at room temperature and can withstand temperatures up to 1150°C (2100°F). Even at elevated temperatures, Inconel 602 remains resistant to most forms of corrosion and can exhibit ductile behaviour. Its high strength and ductility make it a popular choice for hot-section components in gas turbines.

Inconel 602 Uses

Inconel 602 is a versatile alloy used in many industrial applications. The alloy’s high-temperature corrosion resistance and strength make it ideal for use in the aerospace industry, particularly in gas turbine engines. Inconel 602 is also used in the petrochemical and chemical industries, where it is used in heat exchangers, oil and gas production equipment, and solenoid valves.

Inconel 602 Hardness

Inconel 602 is a challenging and durable alloy with good wear resistance. The alloy’s hardness ranges from 180-240 HB, making it ideal for use in many applications where wear resistance is essential.

Inconel 602 Heat Treatment

Inconel 602 is a heat-resistant alloy that can be strengthened through heat treatment. Annealing the alloy can help soften it, while solution heat treatment followed by ageing can improve its strength and toughness.


Inconel 602 is a highly versatile alloy with unique properties that traditional metals cannot match. Its strength, heat, and corrosion resistance make it ideal for applications in harsh environments such as high-temperature gas turbine engines, petrochemical and chemical industries. Understanding the composition, physical and mechanical properties used, hardness, and heat treatment of Inconel 602 can help create better designs and products that will meet the demands of today’s industries. So next time you choose a high-strength, heat-resistant alloy, consider Inconel 602.

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