API 5L GRB PSL2 ERW steel pipe details

In the transportation of energy resources such as oil and natural gas, corrosion resistance is critical for the long-term safety and reliability of steel pipelines. The API5L GRB PSL2 ERW welded steel pipe, featuring enhanced 3PE anti-corrosion protection, plays a vital role in ensuring secure energy transport.

Standards and Manufacturing

This steel pipe is manufactured according to the strict API5L specification, with the PSL2 grade representing higher quality and performance standards. Produced using ERW (electric resistance welding) and high-frequency longitudinal welding, the pipe achieves high dimensional accuracy, uniform weld density, and excellent overall strength.

Typical dimensions include:

Outer Diameter: 21.3 mm – 762 mm

Wall Thickness: 2.0 mm – 140 mm

These specifications allow it to meet the requirements of a wide range of engineering projects.

Enhanced 3PE Corrosion Protection

The core advantage of this pipe is its enhanced 3PE anti-corrosion coating, consisting of three layers:

Base Epoxy Powder Coating: Provides strong chemical resistance and cathodic disbonding resistance, forming the primary protective barrier.

Hot-Melt Adhesive Layer: Ensures strong bonding between layers, maintaining coating integrity.

High-Density Polyethylene Layer: Offers physical protection against scratches, impacts, and external damage.

This 3PE treatment ensures exceptional corrosion resistance, effectively protecting the pipe against acids, alkalis, saltwater, and other corrosive environments. It performs reliably in harsh conditions found in marine, chemical, and petroleum industries, extending service life and reducing maintenance costs.

Proven Performance

For instance, in a large-scale oil transportation project, these pipes with enhanced 3PE protection maintained excellent condition after years of operation, showing minimal corrosion. This reliability provides strong assurance for the safe transport of oil and gas.

Conclusion

With its combination of high-quality PSL2 material, precision ERW manufacturing, and enhanced 3PE corrosion protection, the API5L GRB PSL2 ERW high-frequency longitudinally welded steel pipe is an ideal choice for energy transportation projects requiring long-term durability and corrosion resistance.