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Nimonic 91: Superior Corrosion and Oxidation Resistance at High Temperatures

When it comes to high-temperature applications in extreme environments, few alloys can match the performance of Nimonic 91. This versatile nickel-chromium-cobalt-molybdenum alloy offers superior corrosion and oxidation resistance, excellent mechanical properties, and exceptional toughness at elevated temperatures. In this article, we will explore the various aspects of Nimonic 91, including its applications, chemical composition, mechanical properties, production standards, and available forms like round bar, plate, sheet, strip, pipe, and wire rod.

Chemical Composition of Nimonic 91:

Nimonic 91 is a nickel-based superalloy that contains chromium, molybdenum, cobalt, titanium, aluminum, and small amounts of carbon, silicon, manganese, phosphorus, sulfur, and boron. The precise chemical composition of Nimonic 91 may vary depending on the specific manufacturer or producer, but typically falls within the following range:

  • Nickel (Ni): 57.0 – 61.0%
  • Chromium (Cr): 18.0 – 21.0%
  • Molybdenum (Mo): 8.0 – 10.0%
  • Cobalt (Co): 6.0 – 8.0%
  • Titanium (Ti): 1.5 – 2.5%
  • Aluminum (Al): 0.4 – 1.2%
  • Carbon (C): 0.05 – 0.11%
  • Silicon (Si): 0.03 – 0.08%
  • Manganese (Mn): 0.04 – 0.08%
  • Phosphorus (P): 0.015 – 0.025%
  • Sulfur (S): 0.01 – 0.02%
  • Boron (B): 0.002 – 0.006%

Mechanical Properties of Nimonic 91:

Nimonic 91 offers excellent mechanical properties at high temperatures, making it ideal for applications in extreme environments. Some of the key mechanical properties of Nimonic 91 include:

  • Tensile Strength: 900 – 1050 MPa
  • Yield Strength: 500 – 650 MPa
  • Elongation: 20 – 30%
  • Hardness: 250 – 310 HBW
  • Young’s Modulus: 220 GPa

Applications of Nimonic 91:

Nimonic 91 is widely used in a variety of high-temperature applications, including gas turbine components, aerospace engines, power generation equipment, and chemical processing plants. Some specific applications of Nimonic 91 include:

  • Gas Turbine Blades and Vanes
  • Combustion Chambers
  • Exhaust Nozzles
  • Heat Exchangers
  • High-Temperature Fasteners
  • High-Temperature Springs
  • Chemical Processing Equipment
  • Aerospace Components

The exceptional performance of Nimonic 91 in these applications can be attributed to its unique combination of high-temperature strength, corrosion resistance, and thermal stability.

Production Standards for Nimonic 91:

Nimonic 91 is produced according to various international standards, including ASTM B463, AMS 5870, and BS HR51. These standards specify the chemical composition, mechanical properties, and testing requirements for Nimonic 91, ensuring that the alloy meets the highest quality standards for use in high-temperature applications.

Available Forms of Nimonic 91:

Nimonic 91 is available in a variety of forms, including round bar, plate, sheet, strip, pipe, and wire rod. These forms are produced using different manufacturing techniques, such as hot rolling, cold drawing, and extrusion, to meet the specific requirements of each application. The dimensions, tolerances, and surface finishes of these forms can also be customized according to customer specifications.

ANTON METAL: A Trusted Supplier of Nimonic 91 for Over 20 Years:

ANTON METAL is a leading supplier of high-performance alloys, including Nimonic 91, to customers around the world. With over 20 years of experience in the industry, ANTON METAL has built a reputation for delivering high-quality products and exceptional customer service. Their team of experts can provide technical support and advice on the selection, processing, and application of Nimonic 91, ensuring that customers get the most out of this exceptional high-temperature alloy.

Conclusion:

In conclusion, Nimonic 91 is a versatile and high-performance nickel-based superalloy that offers exceptional performance in extreme high-temperature environments. Its chemical composition, mechanical properties, and production standards make it ideal for use in a wide range of applications, including gas turbines, aerospace engines, power generation equipment, and chemical processing plants.

Nimonic 91′s unique combination of high-temperature strength, corrosion resistance, and thermal stability allows it to withstand the harsh conditions of these applications, making it a material of choice for many industries. The availability of Nimonic 91 in various forms, including round bar, plate, sheet, strip, pipe, and wire rod, makes it easy to tailor its use to specific applications.

ANTON METAL, with its more than 20 years of experience as a supplier of high-performance alloys, has established itself as a trusted supplier of Nimonic 91 and other materials. Their expertise ensures that customers get the best advice on the selection, processing, and application of Nimonic 91.

In conclusion, Nimonic 91 is an alloy that delivers exceptional performance in high-temperature applications. Its unique properties and versatile forms make it a valuable asset in industries where extreme environments are common. ANTON METAL’s experience and expertise in supplying this material ensures that customers get the most out of its exceptional properties.


Post time: Jun-17-2023