Neptune Alloys is a High-Quality Grade 660 Round Bar Supplier in India. Grade 660 Round Bar, also known as Alloy A-286, is a high-strength, iron-nickel-chromium alloy designed to withstand extreme environments. It is renowned for its exceptional high-temperature strength and oxidation resistance, making it an indispensable material in various industrial applications. This blog will take you through the journey of Grade 660 Round Bar, from its production process to its diverse applications, and highlight why choosing the right Grade 660 Round Bar Supplier in India is crucial for your projects.

The Production Process of Grade 660 Round Bar

The production of Grade 660 Round Bar involves several key steps that ensure the material meets the stringent requirements necessary for its intended applications. Here’s an overview of the process:


Melting and Alloying: The process begins with the melting of raw materials, including iron, nickel, chromium, and other alloying elements like molybdenum, titanium, and aluminium. These elements are combined in precise proportions to create the alloy with the desired properties. The molten alloy is then cast into ingots or billets. Also visit ASTM A453 Grade 660 Class A Round Bar Supplier in India.

Hot Working: Once the ingots or billets have cooled, they undergo hot working processes such as rolling, forging, or extrusion to form the basic shape of the round bar. Hot working at elevated temperatures helps to refine the grain structure of the alloy, enhancing its mechanical properties.

Heat Treatment: Heat treatment is a critical step in the production of Grade 660 Round Bar. The alloy is subjected to a solution annealing process, followed by rapid cooling or quenching. This process helps to dissolve any unwanted phases and ensures a uniform microstructure. Subsequent aging treatments are applied to achieve the desired level of hardness and strength.

Applications of Grade 660 Round Bar

Grade 660 Round Bar is widely used across various industries due to its unique combination of high strength, excellent corrosion resistance, and the ability to maintain mechanical properties at elevated temperatures. Here are some of its primary applications:


Aerospace: Grade 660 Round Bar is extensively used in the aerospace industry for manufacturing turbine components, jet engine parts, and fasteners. Its ability to withstand high temperatures and resist oxidation makes it ideal for these demanding applications.

Power Generation: In the power generation sector, Grade 660 Round Bar is used in gas turbines, nuclear reactors, and other high-temperature environments. Its durability and strength ensure reliable performance under extreme conditions. We are also ASTM A453 Grade 660 Class D Round Bar Supplier in India.

Oil and Gas: The oil and gas industry relies on Grade 660 Round Bar for components such as valves, fittings, and fasteners used in drilling and extraction operations. Its resistance to corrosion and ability to handle high stress makes it a preferred material in this sector.

Choosing the Right Grade 660 Round Bar Supplier in India

When sourcing Grade 660 Round Bar for your projects, selecting a reliable Grade 660 Round Bar Supplier in India is essential. A trusted supplier will offer high-quality products that meet international standards, ensuring that the material performs as expected in your applications. Additionally, an experienced supplier can provide valuable technical support, helping you select the right specifications and grades for your specific needs. We are also Alloy A286 Round Bar Supplier in India.


Grade 660 Round Bar is a versatile and high-performance material that plays a critical role in various industrial applications. From its meticulous production process to its deployment in demanding environments, understanding the journey of Grade 660 Round Bar underscores its value in modern engineering.