IMRI’s N80Q tubing with a minimum yield strength of 80,000 psi (552 MPa), improved impact toughness and better resistance to hydrogen sulfide stress corrosion cracking. It is one of the most important basic pipe choices for oilfield development.

IMRI’s N80Q tubing with a minimum yield strength of 80,000 psi (552 MPa), improved impact toughness and better resistance to hydrogen sulfide stress corrosion cracking. It is one of the most important basic pipe choices for oilfield development.
Email:
sales@imristeel.com
Phone:
+86 13646172523


| Grade | C | Mn | Mo | Cr | Ni | Cu | P | S | Si | ||||
| Min | Max | Min | Max | Min | Max | Min | Max | Max | Max | Max | Max | Max | |
| N80Q | 一 | 一 | 一 | 一 | 一 | 一 | 一 | 一 | 一 | 一 | 0.030 | 0.030 | 一 |
| 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 | |||
| N80 | Q | 0.5 | 552 | 758 | 689 | – | – | – |
IMRI’s API 5CT N80Q tubing is designed for sulfur-containing deep-well production columns that are resistant to H₂S ≤ 30 ppm, and is certified sulfur-resistant by NACE TM0177. It has been applied in the following projects: Sour Gas Well Fluid Transportation – Puguang Gas Field, China Φ73mm. CO₂ Driven Injection Wells – Mukhaizna Field, Oman Φ60.3. A nd Deep Gas Lift System – Duvernay Block, Canada, which meets the ISO 15156 specification for completion tubing in production wells.


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