Galling Resistance of a Cryogenically Treated L80 13Cr Stainless Steel for OCTG Premium Connections

PRIETO, G.; KAFEXHIU, F.; TUCKART, W. R.; PODGORNIK, B.

Conferencia; TriboBr 2023; 2023

The API L80 13Cr martensitic stainless steel is commonly utilized for premium Oil Country Tubular Goods (OCTG) connections, particularly in oil reservoirs where there are high concentrations of hydrogen sulfide and therefore there is risk of corrosion. Due to the need for tight seals, the joints require significant torque, which can result in severe adhesion and galling of the couplings.In this study, we employed a cross-cylinder test rig to assess the resistance to adhesive wear of specimens under various heat treatments that involved cryogenic cooling of the material. Our findings indicate that the cryogenic treatments, which cause a reduction in the average size and volume fraction of carbides, had a significantly negative impact on the adhesive wear resistance of the API L80 13Cr martensitic stainless steel.