Petroleum Storage Through Pipelines DN800

For petroleum storage pipeline networks, L360 or API 5L X52 grade steel is frequently selected due to its balanced mechanical strength and good weldability. The material provides a minimum yield strength of about 360 MPa and tensile strength typically ranging from 460 to 760 MPa, ensuring reliable performance under continuous fluid transmission conditions. Strict control of carbon content and microalloying elements such as Nb and V improves toughness and crack resistance.

Huayang manufactures DN800 LSAW pipes using advanced JCOE forming technology combined with multi-wire submerged arc welding. Each pipe undergoes ultrasonic testing, X-ray weld inspection, and hydrostatic pressure testing to guarantee weld integrity and dimensional accuracy. The production process also maintains tight tolerance on roundness and wall thickness. External anti-corrosion systems such as 3PE or FBE coatings are commonly applied to extend service life in petroleum storage and transfer pipeline networks.