Plastic steel sheet piles utilize polymer composite materials as their base substrate. Some products incorporate modified materials such as glass fiber reinforcement through extrusion molding, forming a unique performance system distinct from traditional materials. Their core advantages are concentrated in the following aspects:
Exceptional weather resistance and corrosion resistance define plastic-steel sheet piles. Unlike rust-prone steel sheet piles, they withstand diverse harsh environments—including marine, muddy, and saline-alkali soils—without decaying, rusting, or corroding when submerged long-term or exposed to natural conditions. They demonstrate no cracking after 1,000 hours of UVB-313 aging tests and maintain stable performance across a wide temperature range of -40°C to 60°C. Their service life spans 50 to 70 years, significantly outlasting conventional materials. In terms of environmental performance, premium plastic steel sheet piles contain no harmful substances like lead or plasticizers, posing no risk of soil or water contamination. Additionally, some products are recyclable, aligning with circular economy principles and making them an ideal alternative to polluting traditional building materials like concrete.

Plastic steel sheet piles also excel in mechanical properties and construction convenience. Their large-moment-of-inertia cross-section design, combined with multi-directional interlocking joints, enables the formation of continuous, high-strength retaining structures. With tensile strength ≥50MPa, flexural modulus ≥2800MPa, and interlock shear strength ≥15kN/m, they provide stable structural support and reliable waterproofing, achieving watertightness test results ≤0.1L/(m·d). Weighing only one-eighth of traditional steel sheet piles at ≤18 kg per linear meter, they significantly reduce transportation costs. Compatible with conventional steel sheet pile construction equipment without modifications, installation efficiency is nearly five times higher than concrete piles, substantially shortening project timelines and lowering construction costs. Moreover, plastic steel sheet piles offer diverse color options. Certain wood-like and eco-green finishes blend seamlessly with natural surroundings, enhancing project aesthetics.