API 5L X52N seamless steel tube is a commonly used high-performance pipeline material in the field of petroleum and natural gas transportation. The following are comprehensive technical parameters and application information:

1、 Product Overview

API 5L X52N seamless steel tube belongs to the medium to high steel grade pipeline pipe in API SPEC 5L standard, mainly used in long-distance oil and gas pipelines and chemical equipment, with high strength, corrosion resistance and hydrogen sulfide resistance characteristics.

2、 Core parameters

Execution standards

Compliant with API SPEC 5L 46th edition and passed TSG D7002 pressure pipeline component type test rules.

Divided into PSL1 (ordinary level) and PSL2 (enhanced level), PSL2 has stricter requirements for chemical composition and mechanical properties.

Chemical composition (mass fraction%)

Carbon (C) ≤ 0.24, silicon (Si) ≤ 0.45, manganese (Mn) ≤ 1.65, phosphorus (P) ≤ 0.020, sulfur (S) ≤ 0.015.

Microalloys: Vanadium (V) ≤ 0.10, Niobium (Nb) ≤ 0.05, Titanium (Ti) ≤ 0.04.

Mechanical properties

Yield strength: 360~530 MPa, tensile strength: 460~760 MPa, yield ratio ≤ 0.93.

PSL2 level requires a weld seam tensile strength of ≥ 460 MPa and performance improvement through normalizing or quenching processes.

3、 Manufacturing and Specifications

Production process

Adopting hot rolling, cold drawing or hot expansion forming, the delivery status includes hot rolling state or heat treatment state (normalizing, quenching).

Key processes: perforation, rolling, straightening, and cutting of the billet to ensure dimensional accuracy and straightness.

Specification Range

Outer diameter: 21.3-1200 mm, wall thickness: 2-130 mm, length usually 9-12 meters.

4、 Application Fields

Oil and gas transportation: used for long-distance, large-diameter high-pressure pipelines, suitable for harsh environments such as the ocean and high-altitude regions.

Chemical and Power: Manufacturing corrosion-resistant equipment, chimneys, and dust collectors, capable of withstanding high temperature and high pressure media.

Special requirement: Can be equipped with 3PE anti-corrosion layer or double anti hydrogen sulfide treatment to enhance durability.