Grade | Total under load Elongation % | Yield strength megapascal | Tensile strength megapascal | Hardness a, C Maximum | Specified OD mm | Allowable hardness Variation |
Min | Max | Min | HRC | HBW | HRC |
L80 | 13Cr | 0.5 | 552 | 655 | 655 | 23.0 | 241 | – |
Case:
L80-13Cr tubing is mainly used in sour oil and gas well environments and has been successfully applied in several ultra-deep well projects, significantly improving well productivity and safety while maintaining high strength and toughness, and becoming an important contributor to the full localization of the ‘Tarim Oilfield’. Participation in high mineralization gas lift system – Oman Mukhaizna oilfield Φ88.9mm tubing (mineralization 120,000mg/L corrosion rate <0.03mm/a).