As a core steel pipe in the oil and gas transportation field,
X56N PSL2 seamless steel pipe plays a vital role in long-distance pipeline construction due to its high precision characteristics of zero tolerance in outer diameter and excellent chemical properties.
Regarding outer diameter precision, X56N PSL2 seamless steel pipe demonstrates extremely high craftsmanship. Its outer diameter tolerance control is extremely strict, achieving near-tolerance-free production within the standard-specified range. Taking common specifications as an example, when the outer diameter is within a certain range, the deviation of the end outer diameter is controlled within a very small range. This characteristic of seamless steel pipe ensures precise connection during the laying process, reducing installation difficulties and potential safety hazards caused by dimensional deviations, and greatly improving construction efficiency and the overall stability of the pipeline system.
In terms of chemical properties, X56N PSL2 seamless steel pipe exhibits excellent performance. It belongs to the PSL2 grade pipeline steel in the API 5L standard, with its chemical composition precisely proportioned and strictly controlled. With a carbon equivalent (Ceq) ≤ 0.43 and sulfur and phosphorus contents limited to extremely low levels, the risk of brittle fracture at low temperatures is effectively reduced, ensuring the safe operation of the steel pipe in harsh environments. Simultaneously, through microalloying design, the addition of elements such as Nb, V, and Ti, and the adoption of controlled rolling and controlled cooling (TMCP) technology, the steel maintains high strength while possessing excellent low-temperature toughness. Its impact energy reaches a high level at -20℃, fully meeting the stringent toughness requirements of major projects such as the West-East Gas Pipeline.
Furthermore, the X56N PSL2 seamless steel pipe also exhibits excellent corrosion resistance. In the marine oil and gas sector, this steel pipe, coated with a 3LPE anti-corrosion coating, maintains coating adhesion far exceeding standard requirements after years of service, effectively resisting erosion from seawater and other corrosive media, extending the service life of the steel pipe, and reducing maintenance costs.
Threeway Steel is known as a professional supplier engaged in manufacturing and distributing a wide range of steel pipe, and our headquarter located the central part of China – Hunan and six associated factories throughout China.
Threeway Steel is known as a professional supplier engaged in designing, manufacturing and distribution of a wide range of steel products with the headquarter located the central part of China – Hunan and six associated factories throughout China.
Threeway Steel is known as a professional supplier engaged in designing, manufacturing and distribution of a wide range of steel products with the headquarter located the central part of China – Hunan and six associated factories throughout China.
Threeway Steel is known as a professional supplier engaged in designing, manufacturing and distribution of a wide range of steel products with the headquarter located the central part of China – Hunan and six associated factories throughout China.
Threeway Steel is known as a professional supplier engaged in designing, manufacturing and distribution of a wide range of steel products with the headquarter located the central part of China – Hunan and six associated factories throughout China.
