​Oil & Gas Pipeline Pipes

• ​Introduction

Oil & gas pipeline pipes are the main means of transporting oil, natural gas, and other fluid – state energy sources. They have the advantages of high efficiency, safety, reliability, and low cost, and play a vital role in the global energy transportation network. They can transport oil and gas from production areas to refineries, storage facilities, or end – user locations, enabling the large – scale and long – distance transportation of energy.

• ​Main Functions

Fluid Transportation：The primary function is to transport crude oil, natural gas, and other fluids from one location to another.

Pressure control：It needs to withstand the pressure and maintain the stable of the internal fluid to prevent blowouts and leakage accidents and ensure the safety of the production process.

Sealing and isolation：It forms a sealed channel to prevent the leakage of oil, gas, and other fluids into the surrounding environment, protecting groundwater resources and the ecological environment.

• ​Tubing Standards

ISO 3183:2019；API 5L；EN 10208-1；GB/T 9711

• ​Material & Performance

PSL1:L245(B),L290(X42),L320(X46),L360(X52),L390(X56),L415(X60),L450(X65),L485(X70); PSL2:L245R(BR),L290R(X42R),L245N(BN),L290N(X42N),L320N(X46N),L360N(X52N),L390N(X56N), L415N(X60N),L245Q(BQ),L290Q(X42Q),L320Q(X46Q),L360Q(X52Q),L390Q(X56Q),L415Q(X60Q),L450Q(X65Q), L485Q(X70Q),L555Q(X80Q),L625Q(X90Q),L690Q(X100Q);

Oil & gas pipeline pipes need to have high strength, including high yield strength and tensile strength, to withstand high – pressure transportation. They also need to have good toughness and plasticity to ensure safe operation in harsh environments. In addition, they should have good corrosion resistance and wear resistance to prolong the service life of the pipeline.

• ​Manufacturing Process ​

Hot Rolling ​； Cold Rolling ​

Heat treatment: According to the performance requirements of the steel pipe, conduct heat treatment on the rolled steel pipe, such as normalizing, tempering, quenching, etc., to eliminate the residual stress inside the steel pipe and improve its strength, toughness, hardness, and other properties.

Surface treatment: Conduct surface treatment on the steel pipe, such as rust removal, painting, or galvanizing, etc., to prevent the steel pipe from being corroded during use and improve its corrosion resistance and service life.

Inspection: Conduct a comprehensive inspection on the finished steel pipe, including the inspection of dimensional accuracy, appearance quality, mechanical properties, chemical composition, etc., to ensure that the steel pipe meets the relevant standards and customer requirements.

• Specifications