Nimonic 81 Rod: Engineered for Extreme Environments

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Nimonic 81 rod is a high-performance nickel-chromium alloy designed for demanding applications requiring exceptional strength and corrosion resistance at elevated temperatures. With its precise composition and tailored heat treatments, Nimonic 81 rod offers reliable performance in challenging environments.

Product Overview: Nimonic 81 Rod

Nimonic 81 rod is a precipitation-hardenable nickel-chromium alloy strengthened by controlled additions of titanium and aluminum. This alloy exhibits excellent high-temperature strength and corrosion resistance, making it suitable for components exposed to aggressive environments. Its high chromium content enhances resistance to hot corrosion, while the precipitation-hardening elements contribute to its mechanical robustness.​

Chemical Composition

Mechanical Properties

Physical Properties

Heat Treatment Recommendations

AC: Air Cooling, WQ: Water Quenching, FBQ: Fluidized Bed Quenching

Applications

Nimonic 81 rod is utilized in various high-temperature applications, including:​

• Gas turbine components​

• Piston engine exhaust valves​

• Heat exchangers​

• Chemical processing equipment​

• Power generation systems​

Frequently Asked Questions

Q: What standards apply to Nimonic 81 rod?
A: Nimonic 81 rod conforms to relevant ASTM standards for high-temperature nickel alloys.​

Q: Can Nimonic 81 rod be welded?
A: Yes, welding should be performed in the solution-treated condition, followed by appropriate post-weld heat treatment.​

Q: Is Nimonic 81 rod suitable for corrosive environments?
A: Yes, its high chromium content provides excellent resistance to hot corrosion, making it ideal for aggressive environments.

Wuxi Nickel New Material Co., Ltd. is a high-tech enterprise integrating the production, manufacturing, and research & development of specialty alloy materials. Located in Wuxi, Jiangsu Province, the company specializes in precision alloys, titanium alloys, high-temperature alloys, corrosion-resistant alloys, heat-resistant steels, nickel-based welding wires, and other specialty materials, with an annual production capacity of 5,000 tonnes. Our product range includes plates, bars, wires, and strips, which are widely used in industrial electric furnaces, power‐station boilers, petrochemical plants, aerospace, marine engineering, machinery, and electronic instrumentation. These materials are characterized by high electrical resistance, high‐temperature strength, corrosion resistance, wear resistance, and fatigue resistance. We can manufacture in compliance with national, industry, and international standards, and are also able to tailor products to meet specific customer requirements.
The company is committed to improving and enhancing its production infrastructure all year round, with a full range of production and processing equipment including vacuum smelting, hot processing, cold processing, and heat treatment. It also has various physical and chemical analysis testing facilities such as spectrometers to ensure product quality. The company has a high-quality R&D, production, and management team that is fully capable of meeting the complex requirements of the current market for material diversification, refinement, and functionalization. Our company is particularly skilled in developing and producing "specialized materials" that are suitable for the market and specific customer needs, which will be one of our company's characteristics. The company adheres to the business philosophy of "guided by market demand, driven by technological progress, and committed to optimizing and innovating materials to create greater value for customers", serving society and the market.