N80 oil tubing and casing is a key piece of equipment used to support the wellbore during oil drilling. It is divided into guide pipe, surface casing, technical casing, and oil layer casing according to its purpose. It is primarily made of N80 steel grade, and its chemical composition requires that both sulfur and phosphorus content be less than 0.045%. Its production standards comply with API 5CT and SY/T6194-96.
Specification
