The base materials of 3PE anti-corrosion steel pipes include seamless steel pipes, spiral steel pipes, and straight seam steel pipes. The three-layer polyethylene (3PE) anti-corrosion coating has been widely used in the petroleum pipeline industry due to its excellent corrosion resistance, water and gas permeability resistance, and mechanical properties. The anti-corrosion layer of 3PE anti-corrosion steel pipe is crucial for the lifespan of buried pipelines. Some pipelines of the same material are buried underground without corrosion for decades, while others leak within a few years. Because they use different external anti-corrosion coatings.
3PE anti-corrosion steel pipe refers to a three-layer structure polyethylene coating (MAPEC) external anti-corrosion steel pipe, which is a commonly used anti-corrosion pipeline in China. Other anti-corrosion methods include IPN8710, FBE epoxy powder, and epoxy coal tar pitch. It generally refers to the anti-corrosion of the outer wall of steel pipes.
1.- The polyethylene material used in 3pe steel pipes has a long service life, high molecular weight, good stability, and aging resistance. Under normal working temperature and pressure, the service life can be guaranteed to be over 50 years.
2.- The corrosion-resistant polyethylene material used in 3PE steel pipes has high stability and can resist chemical corrosion from natural gas, liquefied gas, artificial gas, etc. The chemicals in the soil will not have any degradation effect on the pipeline.
3.- The polyethylene material used for 3PE steel pipes has a fracture elongation greater than 500%. The flexibility of polyethylene material makes it easier to bend.
4.- Polyethylene material with excellent impact resistance and seismic resistance has high temperature adaptability, can be safely used in the temperature range of 60-80 ℃, and has strong adaptability to uneven settlement of pipeline foundations. During winter construction, due to the good impact resistance of materials, pipelines will not become brittle.
5.- The polyethylene material used for 3pe steel pipes does not add heavy metal stabilizers during the processing, and the material is non-toxic and harmless. It is a green pipe. Polyethylene materials can be recycled and will never pollute the environment.
6.- The polyethylene material used in the recently developed flame retardant and anti-static 3pe steel pipe is suitable for flammable and explosive places.
7.- The safe and reliable connection method for the polyethylene material used in 3PE steel pipes is mainly hot melt or electric melt connection, which basically maintains the consistency of the interface material, structure, and pipe body, achieving the integration of the joint and pipe, effectively resisting circumferential stress. Axial tensile stress and oblique stress are caused by internal pressure, and there is no worry of water or air leakage.
8.- The polyethylene material used for 3pe steel pipes is lightweight, easy to operate, and easy to construct, only 1/8 of the steel pipe. This welding process is simple, fast, easy to operate, easy to bend, with low overall cost and significant economic benefits.
As a leading steel pipe supplier&producer, JINBAICHENG can provide seamless steel pipes, spiral steel pipes, and straight seam steel pipes with 3PE Anti-corrosive Solution for our pipe projects. Contact us for best price: https://www.sdjbcmetal.com/steel-pipe-series/ email: jinbaichengmetal@gmail.com or WhatsApp at https://wa.me/18854809715
Post time: Jun-26-2023