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Nimonic C-263

Nimonic C-263

Nimonic C-263 is an age-hardening Nickel-Cobalt-Chromium-Molybdenum alloy engineered to offer both high strength and outstanding fabrication performance. This alloy exhibits remarkable tensile ductility at intermediate temperatures.

Equivalent grades

• Nimonic C-263
• UNS N07263
• W.Nr. 2.4650
• NiCr20Cr20MoT

Chemical Composition Reference


Physical Property Reference

• Density: 8.36 g/cm³

• Melting point: 13250℃

• Elastic modulus: 32270 ksi

• Coefficient of expansion: 10.6 um/m℃ (20 - 100"C)

Stock & Dimensions

Our warehouse has a large number of stock to provide you with a variety of products in different sizes, and can also customize the size according to your needs.
• Bar: 0.5~600mm Diameter
• Coil: 0.5~150mm Thick
• Plate: 0.5~200mm Thick
• Pipe: 6~630mm External Diameter; 0.5~40mm Wall Tick
• Available in specific sizes

Product Forms

We provide you with a variety of product forms, including but not limited to:
• Bar/Rod
• Pipe/Tube
• Coil/Strip
• Plate/Sheet/Circle
• Wire
• Fitting (Flange, Elbow, Tee...)
• Customize

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Nimonic C-263

Essential details
Nimonic C263 is a nickel-based heat resistant superalloy (HRSA) material with a machinability rating of 18% and hardness of 28 HRC.

It is among the hardest of the nickel-based alloys, and accordingly has poor machinability of only 18%.

Alloy C263 has high strength up to 816˚C and excellent oxidation resistance up to 982˚C. The alloy has good formability, ductility, and weldability. In the annealed condition, this alloy has excellent ductility and can easily be formed by cold working.


- Rings for gas turbine

- Low-temperature combustors

- Transition liners

- Engine casings

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