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B3

Nickel Alloy B3 is a high-performance nickel-molybdenum alloy with excellent resistance to pitting, crevice corrosion, and stress corrosion cracking. It is used in harsh chemical and high-temperature environments.

Nickel Alloy B3 is a high-performance nickel-molybdenum alloy that is known for its excellent resistance to pitting, crevice corrosion, and stress corrosion cracking. The addition of molybdenum provides enhanced resistance to these forms of corrosion, making the alloy suitable for use in harsh chemical and high-temperature environments.

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The chemical composition of Nickel Alloy B3 includes high levels of nickel (65-70%) and molybdenum (17-20%) as well as small amounts of other elements such as copper, silicon, and tungsten. These elements provide improved resistance to corrosion and enhance the mechanical properties of the alloy, giving it a high tensile strength, yield strength, and hardness.

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Nickel Alloy B3 is commonly used in the chemical processing, oil and gas, and pharmaceutical industries, where it is subjected to harsh environments and corrosive chemicals. It is also used in high-temperature applications, such as heat exchangers and boilers, where its resistance to stress corrosion cracking is particularly important.

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In terms of fabrication and machining, Nickel Alloy B3 is relatively easy to work with compared to other high-performance alloys. However, care should be taken during welding, as the high molybdenum content can make the alloy prone to hot cracking.

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In conclusion, Nickel Alloy B3 is a high-performance nickel-molybdenum alloy that provides excellent resistance to pitting, crevice corrosion, and stress corrosion cracking. Its combination of high resistance to corrosion and high strength make it an ideal choice for use in harsh chemical and high-temperature environments, particularly in the chemical processing, oil and gas, and pharmaceutical industries.

Chemical Composition of B3

The chemical composition of Nickel Alloy B3 is as follows:

  • Nickel (Ni): 65-70%

  • Molybdenum (Mo): 17-20%

  • Copper (Cu): 1-2%

  • Silicon (Si): 0.5% max

  • Tungsten (W): 0.5% max

  • Iron (Fe): 5% max

  • Carbon (C): 0.02% max

  • Manganese (Mn): 1% max

  • Sulfur (S): 0.01% max

  • Phosphorus (P): 0.01% max

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It's important to note that the chemical composition of Nickel Alloy B3 may vary slightly depending on the specific manufacturer or supplier of the alloy. It's also important to note that slight variations in the chemical composition can affect the mechanical and corrosion resistance properties of the alloy, so it's important to choose the right supplier and to ensure that the alloy is manufactured to the correct specifications.

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 B3

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 B3 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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