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32760 / F55

Zeron 100 (UNS S32760 / F55) is a super duplex stainless steel known for its high strength, corrosion resistance, and durability, making it suitable for harsh environments.

Super Duplex 32760, also known as F55, is a high-performance stainless steel alloy that combines excellent mechanical and corrosion resistance properties. It is a duplex stainless steel, which means it has a two-phase microstructure consisting of both austenitic and ferritic phases. This unique microstructure gives the alloy excellent strength and corrosion resistance, making it suitable for use in harsh environments.

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The chemical composition of Super Duplex 32760 includes high levels of chromium, molybdenum, and tungsten, which provide enhanced resistance to pitting and crevice corrosion. The addition of nitrogen also improves the mechanical properties of the alloy, giving it a high tensile strength, yield strength, and hardness. The high chromium content also provides good resistance to oxidizing acids such as nitric and sulfuric acid.

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Super Duplex 32760 has a high resistance to stress corrosion cracking, making it suitable for use in oil and gas, chemical processing, and seawater applications. It is also resistant to chloride-induced stress corrosion cracking, making it suitable for use in harsh marine environments. The high strength of the alloy also makes it suitable for use in pressure vessels and piping systems, where high-pressure environments are present.

In terms of fabrication and machining, Super Duplex 32760 is generally easier to work with compared to other super duplex alloys, due to its lower nickel content. However, care should be taken during welding, as the high molybdenum and tungsten content can make the alloy prone to hot cracking.

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In conclusion, Super Duplex 32760 is a high-performance stainless steel alloy that offers excellent mechanical and corrosion resistance properties. Its high resistance to stress corrosion cracking, combined with its strength and durability, make it an ideal choice for use in harsh environments, particularly in the oil and gas, chemical processing, and marine industries.

Chemical Composition of 32760 / F55

The chemical composition of Super Duplex 32760, also known as F55, is as follows:

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  • Chromium (Cr): 24-26%

  • Nickel (Ni): 6.5-8.0%

  • Molybdenum (Mo): 3.0-5.0%

  • Manganese (Mn): 1.0-2.0%

  • Silicon (Si): 0.7-1.3%

  • Phosphorus (P): 0.03% max

  • Sulfur (S): 0.02% max

  • Nitrogen (N): 0.14-0.20%

  • Carbon (C): 0.03% max

  • Copper (Cu): 0.5% max

  • Tungsten (W): 1.0-2.0%

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It's important to note that the chemical composition of Super Duplex 32760 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 Super Duplex 32760, also known as F55, are as follows:

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Physical Properties:

  • Density: 7.8 g/cm3

  • Thermal conductivity: 14.2 W/mK

  • Electrical resistivity: 720 μΩ-cm

  • Modulus of elasticity: 193 GPa

  • Magnetic permeability: 1.02 (at room temperature)

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Mechanical Properties:

  • Tensile strength: 880-1100 MPa

  • Yield strength: 550-750 MPa

  • Elongation: 20-30%

  • Hardness (Brinell): 270-310 HB

  • Impact toughness: 50 J at -60°C

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It's important to note that the mechanical properties of Super Duplex 32760 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 32760 / F55

Variants of Super Duplex

Super Duplex is a type of high-performance stainless steel that has improved strength, corrosion resistance, and durability compared to regular duplex stainless steel. Some common variants of Super Duplex include:

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  1. 2507 (UNS S32750)

  2. Zeron 100 (UNS S32760)

  3. LDX 2101 (UNS S32101)

  4. 4501 (UNS S32707)

  5. 329J1 (UNS S32950)

  6. 255 (UNS S32550)

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These variants can have slightly different chemical compositions, properties, and applications. It is important to consult with the manufacturer's specifications for the specific material you are using for an accurate list of the chemical composition, properties, and guidelines for use.

AVAILABLE FORMS

Intamet offers 32760 / F55 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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