Sanicro® 69

Tube and pipe, seamless Datasheet

Datasheet updated 2018-07-05 09:32 (supersedes all previous editions)

Disclaimer: Recommendations are for guidance only, and the suitability of a material for a specific application can be confirmed only when we know the actual service conditions. Continuous development may necessitate changes in technical data without notice. This datasheet is only valid for Sandvik materials.

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. The grade has good structure stability and good weldability.

For the steam generator application the material is characterized 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

Sanicro® 69 is also characterized by:

  • Good corrosion resistance in caustic environments
  • Excellent performance in nitric acid solutions

Standards

  • UNS: N06690
  • W.Nr.: 2.4642
  • AFNOR: NC 30FE (RCCM)

Products standards
Seamless condenser and heat exchanger tubes: ASTM B163
Seamless tube and pipe: ASTM B167

Approvals
ASME Boiler and Pressure Vessel Code Case N-20 and N-474.
AFCEN RCCM M4105

For steam generator applications Sanicro® 69 is delivered to the most stringent individual specifications in order to assure maximum reliable performance in nuclear power plants.

Disclaimer: Recommendations are for guidance only, and the suitability of a material for a specific application can be confirmed only when we know the actual service conditions. Continuous development may necessitate changes in technical data without notice. This datasheet is only valid for Sandvik materials.