Application and properties of API 5L grade X52 steel pipe

Application and properties of API 5L grade X52 steel pipe

API 5L grade X52 steel pipe is pipeline steel, which is a kind of steel used to manufacture oil and gas pipeline transportation system. As a long-distance transportation tool of oil and gas, pipeline system has the advantages of economy, safety and uninterrupted.

Application of API 5L grade X52 steel pipe:
The forms of API 5L grade X52 steel pipe include seamless steel pipe and welded steel pipe, which can be divided into three types: high cold area, high sulfur area and submarine laying area. These pipelines with bad working environment are long and difficult to maintain, so they have strict quality requirements for API 5L grade X52 steel pipe.

API 5L grade X52 steel pipe faces many challenges, including: most of the oil and gas fields are in polar, ice land, desert and marine areas, the natural conditions are relatively poor, or in order to improve the transportation efficiency, the diameter of the pipeline is constantly expanded, the transportation pressure is constantly increased, and the oil flow in the pipeline is corroded.

Properties of API 5L grade X52 steel pipe:
According to the comprehensive evaluation of the development trend, pipeline laying conditions, main failure forms and failure causes of oil and gas pipelines, API 5L grade X52 steel pipe should have good mechanical properties (thick wall, high strength, high toughness and wear resistance), large diameter, weldability, cold and low temperature resistance, corrosion resistance (CO2), seawater resistance, HIC and SSCC, etc.

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