Aisi Grade 660 Round Bar Manufacturers In India Supplying High Strength Austenitic Alloy Bars For Aerospace, Fastener & High Temperature Industrial Applications

AISI Grade 660 (A-286) Round Bar – Standard Weight Chart

AISI Grade 660 Round Bar – Standard Size & Weight Overview

AISI Grade 660 (Alloy A-286) Round Bars are engineered for high-temperature, high-stress, and critical structural applications, where exceptional mechanical strength, creep resistance, and long-term dimensional stability are essential. The alloy’s precipitation-hardened austenitic structure provides excellent resistance to oxidation and corrosion while maintaining strength under sustained thermal exposure. Manufactured through controlled hot working and precision finishing processes, AISI 660 round bars ensure uniform microstructure, reliable performance under cyclic loading, and resistance to deformation in demanding service conditions.

Designed to perform consistently in elevated-temperature and high-load environments, AISI Grade 660 Round Bars are widely used in aerospace, power generation, and advanced engineering systems where material integrity and service life are critical.

AISI Grade 660 (A-286) Round Bar – Technical & Material Specification Table

AISI Grade 660 Round Bar – Performance, Applications & Material Overview

AISI Grade 660 Round Bars are produced under stringent quality control systems and undergo comprehensive inspection processes to ensure dimensional precision, metallurgical consistency, and high mechanical reliability. The alloy’s precipitation-hardened austenitic structure enables excellent strength retention at elevated temperatures, making it suitable for components exposed to sustained thermal and mechanical loads.

Each round bar is manufactured to withstand demanding service conditions while maintaining structural integrity and resistance to deformation. The material’s ability to perform under continuous stress, cyclic loading, and elevated temperatures reduces maintenance requirements and supports long service life in critical engineering systems. Incorporating AISI 660 round bars into high-performance assemblies enhances reliability, safety, and operational efficiency in applications where failure is not an option.

Application / Operating Environment

AISI Grade 660 Round Bars are designed for use in high-temperature, high-stress environments such as aerospace components, gas turbines, power generation equipment, and high-strength bolting systems. They are well suited for applications requiring excellent creep resistance, oxidation resistance, and stability during prolonged exposure to temperatures up to approximately 700°C.

Manufacturing Process & Structural Strength

These round bars are manufactured through controlled hot working, solution treatment, and age hardening processes to develop a uniform microstructure and optimized mechanical properties. The heat treatment process significantly enhances tensile strength and fatigue resistance, ensuring dependable performance even under repeated loading, vibration, and thermal cycling.

Material Grade & Configuration

AISI Grade 660 (Alloy A-286) is an iron-nickel-chromium alloy strengthened by precipitation hardening. Round bars are supplied in hot rolled, cold drawn, or forged conditions, in solution-treated or solution-treated-and-aged states, depending on application requirements. Selection of diameter, heat treatment condition, and tolerance is based on operating temperature, load conditions, and design specifications.

Additional Performance Advantages

AISI 660 Round Bars offer superior resistance to creep, oxidation, and stress rupture compared to conventional stainless steels. Their stable mechanical properties at elevated temperatures make them ideal for long-term service in severe operating environments, reducing the risk of component failure and ensuring consistent performance in continuous-duty applications.

AISI Grade 660 Round Bar – Client Supply Project Overview

This project involved the supply of high-strength AISI Grade 660 (Alloy A-286) Round Bars for critical engineering and high-temperature applications across multiple industrial locations in India. The round bars were manufactured using controlled hot working and precision finishing processes, followed by appropriate solution treatment and age hardening to achieve uniform microstructure, accurate diameters, and superior mechanical properties. All supplied AISI 660 round bars complied with applicable ASTM, ASME, AMS, and ISO standards, ensuring high-temperature strength, oxidation resistance, and full material traceability.

Each batch of AISI Grade 660 round bars underwent rigorous quality inspections, including dimensional verification, chemical composition analysis, mechanical property testing, and heat treatment validation, to meet project-specific technical and performance requirements. The project was executed within the committed delivery schedule and supported the client’s requirement for dependable, low-maintenance alloy bar solutions capable of performing under elevated temperatures, sustained mechanical loads, thermal cycling, and continuous operating conditions.

AISI Grade 660 Round Bar – Project Supply Details

AISI Grade 660 Round Bars offer excellent resistance to creep, stress rupture, and oxidation at elevated temperatures, making them a preferred material for aerospace, power generation, and advanced engineering systems. From a B2B procurement and engineering perspective, the availability of clear data on heat treatment condition, operating temperature limits, mechanical strength, and weight per meter enables buyers and designers to make informed material selection decisions aligned with real-world service demands rather than generic specifications.