Manufactured in accordance with latest edition of API 5CT and ISO 11960 – PSL-2 specifications (group 2 – L80) this material is suitable for Expandable application with Expansion Ratio (ER) up to 25%.
SSC resistance is guaranteed by C-ring tests performed according to NACE TM0177 standard at 100 % actual YS on inner fibber.
Its primary applications are casing and liner extensions or zonal isolation with temporary exposure to production fluids. It will be used in low H2S environment (with T°) and where expansion ratios are not greater than 25 %.
Post expansion application will depend of CO2, temperature, pH and chloride content.
Strength ksi (MPa)
For VM 50 ET, Vallourec recommends all storage rules specific to martensitic steels, in particular:
Handling rules are those applicable to any Vallourec Expandable grade: