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C276

Hastelloy C276 is a nickel-molybdenum-chromium alloy with excellent resistance to corrosion in harsh environments.

Hastelloy C276 is a nickel-molybdenum-chromium alloy known for its exceptional resistance to corrosion in harsh environments. The high molybdenum and chromium content of the alloy provides excellent resistance to pitting, crevice corrosion, and stress corrosion cracking.

 

Additionally, the high nickel content contributes to its resistance to a wide range of oxidizing acids, including nitric acid, as well as reducing environments. This makes Hastelloy C276 a popular choice for applications in chemical processing, pharmaceuticals, flue gas desulfurization, and other industries where corrosive conditions are prevalent.

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Hastelloy C276 has high thermal stability and excellent mechanical properties, making it suitable for use in high-temperature applications. It can be easily fabricated using welding, forging, and other common metalworking processes. It also has good formability and is readily available in a variety of product forms, including plate, sheet, bar, and tube.

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In conclusion, Hastelloy C276 is a versatile and reliable alloy that offers a high level of corrosion resistance in harsh environments. Its unique combination of properties makes it ideal for use in a variety of applications, from chemical processing and pharmaceuticals to high-temperature applications.

Chemical Composition of C276

The chemical composition of Hastelloy C276 is as follows:

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  • Nickel: balance

  • Chromium: 15-17%

  • Molybdenum: 15-17%

  • Iron: 4-7%

  • Cobalt: 2.5% max

  • Tungsten: 3-4.5%

  • Manganese: 1% max

  • Carbon: 0.01% max

  • Silicon: 0.08% max

  • Sulfur: 0.03% max

  • Phosphorus: 0.04% max

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Note: The exact composition of Hastelloy C276 may vary depending on the manufacturer and the specifications of the material. The above values are typical ranges and should not be used as a basis for design. Consult the manufacturer's data sheet for more information.

The physical and mechanical properties of Nickel Alloy B3 are as follows:

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Physical Properties:

  • Density: 8.1 g/cm3

  • Thermal conductivity: 17 W/mK

  • Electrical resistivity: 720 μΩ-cm

  • Modulus of elasticity: 200 GPa

  • Magnetic permeability: 1.02 (at room temperature)

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Mechanical Properties:

  • Tensile strength: 800-1000 MPa

  • Yield strength: 550-750 MPa

  • Elongation: 20-30%

  • Hardness (Brinell): 250-320 HB

  • Impact toughness: 50 J at -60°C

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It's important to note that the mechanical properties of Nickel Alloy B3 can be affected by a variety of factors, including temperature, rate of strain, and previous exposure to heat treatments. As a result, it's important to carefully consider the conditions of use when selecting the right properties for a specific application. The properties listed above are typical values and should only be used as a rough guide. It's always best to consult a materials engineer or specialist for the specific application requirements.

Physical & Mechanical Properties of C276

Variants of Nickel Alloys

There are many variants of nickel alloys, each with unique chemical compositions, properties, and applications. Some of the most common nickel alloys include:

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  • Nickel 200 (UNS N02200): A pure nickel alloy with good corrosion resistance and high thermal and electrical conductivity.

  • Nickel 201 (UNS N02201): A low-carbon nickel alloy with high thermal and electrical conductivity and excellent corrosion resistance.

  • Inconel 600 (UNS N06600): A nickel-chromium alloy with excellent resistance to high-temperature corrosion and oxidation.

  • Inconel 601 (UNS N06601): A nickel-chromium-iron alloy with good resistance to high-temperature oxidation and corrosion.

  • Inconel 625 (UNS N06625): A nickel-chromium-molybdenum alloy with excellent resistance to corrosion and high-temperature oxidation.

  • Monel 400 (UNS N04400): A nickel-copper alloy with good corrosion resistance in a variety of environments.

  • Hastelloy C-276 (UNS N10276): A nickel-molybdenum-chromium alloy with excellent resistance to corrosion in a variety of harsh environments.

  • Incoloy 800 (UNS N08800): A nickel-iron-chromium alloy with good resistance to high-temperature corrosion and stress corrosion cracking.

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These are just a few examples of the many nickel alloys available. The specific alloy chosen for a particular application depends on the desired properties and the conditions of use. It's always best to consult a materials engineer or specialist for the most appropriate selection.

AVAILABLE FORMS

Intamet offers C276 in a wide range of forms, including the below:

Stacked Pipes

Tubes & Pipes

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Fittings & Flanges

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Round Bars

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Sheet & Plate

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