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Sandvik Sanicro 69 Seamless tube and pipe

 

Subcategory: Nickel Alloy; Metal

Close Analogs: UNS N06690; EN 2.4642

Material Notes:
Austenitic nickel-chromium-iron alloy, UNS N06690

Sandvik Sanicro 69 is an austenitic nickel-chromium-iron alloy used primarily for steam generators in nuclear power plants (PWR). For this application it is used in the "thermally treated" condition. This treatment results in chromium carbide precipitation at the grain boundaries but no significant chromium depletion.

For the steam generator application the material is characterised by:

  • extremely high resistance against stress corrosion cracking in primary side PWR water conditions
  • improved pitting corrosion resistance in chloride containing solutions compared with Alloy 600
  • good corrosion resistance in caustic environments

    • For other applications the material is characterised by:

  • excellent performance in nitric acid solutions
  • very good resistance against high temperature oxidation

    • The material has also:

  • good structure stability
  • good weldability

    • Information provided by Sandvik

    Available Properties
    • Density
    • Hardness, Vickers
    • Tensile Strength, Ultimate
    • Tensile Strength, Ultimate at Elevated Temperature
    • Tensile Strength, Yield
    • Tensile Strength, Yield at Elevated Temperature
    • Elongation at Break
    • Modulus of Elasticity
    • Electrical Resistivity
    • CTE, linear 100°C
    • CTE, linear 250°C
    • CTE, linear 500°C
    • Specific Heat Capacity
    • Thermal Conductivity
    		   
    Property Data

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