Name: China LSAW Steel Pipe DN1120 API 5L X52 PSL2 For Subsea Oil Pipeline Manufacturers Suppliers Factory - Huayang Steel Pipe
Brand: Huayang
SKU: 302251252

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High-Strength DN1120 LSAW Conduits for Subsea Oil Pipeline Infrastructure

Huayang's DN1120 LSAW pipes utilizing API 5L X52 PSL2 steel provide the superior mechanical integrity and hydrostatic reliability for demanding offshore energy transmission.

Technical Parameter	Specification Value
Material Grade	API 5L X52 (L360) PSL2
Yield Strength	360 – 530 MPa (52,200 - 76,900 psi)
Tensile Strength	460 – 760 MPa (66,700 - 110,200 psi)
Outer Diameter	1117.6 mm (DN1120 / NPS 44)
Weld Process	Double-Sided LSAW (JCOE)

This large-diameter piping solution ensures exceptional resistance to external pressure and corrosion, safeguarding critical subsea hydrocarbon logistics in deepwater environments.

Advanced Mechanical Integrity in Submarine Oil Distribution

Engineered for the rigorous demands of subsea energy corridors, Huayang's DN1120 API 5L X52 PSL2 pipes feature a high-performance fine-grain steel body optimized for submarine service. The 1117.6mm LSAW sections are manufactured using the advanced JCOE cold-forming process, which minimizes residual stresses and ensures high dimensional roundness-critical for maintaining structural stability under immense external hydrostatic pressure. The PSL2 specification mandates strict controls on carbon equivalents (CEV) and low-temperature Charpy V-notch impact toughness, ensuring the pipeline remains ductile and resistant to brittle fracture in cold seafloor conditions. As a premier industrial manufacturer, Huayang subjects each DN1120 unit to 100% automated ultrasonic testing and stringent dimensional calibration, providing a durable, high-integrity conduit that maximizes operational safety across expansive offshore oil pipeline networks.