​Incoloy 909 Rod (UNS N19909): Precision Alloy for High-Performance Applications​

Incoloy 909 (UNS N19909) is a nickel-iron-cobalt alloy that is celebrated for its remarkable blend of exceptional high strength, a low and stable coefficient of thermal expansion, and outstanding resistance to thermal fatigue. These superior properties render it the optimal choice for precision-engineered components employed in aerospace, power generation, and diverse high-temperature industrial applications.​

Chemical Composition

Mechanical & Physical Properties

Fabrication & Standards

Incoloy 909 is available in various forms, including bars, forgings, rings, sheets, and strips, and is compliant with the following standards:

• AMS 5884 – Bars, Forgings, Rings

• AMS 5892 – Sheet, Strip

• AMS 5893 – Bars, Forgings, Rings​

Fabrication processes such as hot forming, welding, machining, and heat treatment are well-suited for Incoloy 909, enabling the production of complex components with tight tolerances. ​

Applications

Incoloy 909 is widely used in industries requiring materials that can withstand extreme temperatures and mechanical stresses:​

• Gas turbine vanes and casings

• Rocket-engine thrust chambers

• Ordnance hardware

• Springs and steam-turbine bolts

• Gauge blocks and instrumentation

• Glass-sealing applications​

Its low thermal expansion and high strength make it particularly valuable in aerospace and power generation sectors.

Frequently Asked Questions

Q: What is the maximum operating temperature for Incoloy 909?

A: Incoloy 909 maintains its mechanical properties up to approximately 1150°C (2100°F), making it suitable for high-temperature applications. ​

Q: Can Incoloy 909 be welded?

A: Yes, Incoloy 909 can be welded using standard gas-tungsten arc welding processes, with proper surface preparation. ​

Q: Is Incoloy 909 resistant to oxidation?

A: While Incoloy 909 offers good oxidation resistance at elevated temperatures, it may require a protective coating in certain applications due to the absence of chromium in its composition.

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.