Sanicro® 29 for OCTG

Tube and pipe, seamless Datový list

Datový list byl aktualizován 2019-01-11 09:52 (nahrazuje všechna předchozí vydání)

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® 29 is a high-alloy austenitic stainless steel (CRA) for OCTG downhole applications in particularly corrosive conditions. The grade is characterized by:

  • Very good resistance to sulphide stress cracking and stress corrosion cracking (SCC) in H2S environments
  • Very high resistance to pitting and crevice corrosion
  • Higher pitting resistance equivalent (PRE) than Sanicro® 28 (UNS N08028)

Sanicro® 29 is developed specifically for improved localized corrosion resistance where the environment contains high chloride concentrations, CO2 and H2S at high temperatures. Such an environment causes corrosion in lower alloyed materials. Sanicro® 29 offers a cost effective solution to such corrosion problems over the more expensive nickel alloys.

Standards

  • UNS: N08029
  • ISO: 13680 27-31-4

Product standards

Seamless tubes for casing, tubing and coupling stock: ISO 13680 PSL-1 and PSL-2A
API 5CRA

Approvals

  • NACE MR0175/ISO 15156-3 (Petroleum and natural gas industries - Materials for use in H2S-containing environments in oil and gas production)

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.