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Help CenterSteel Sheet & Plate & Steel Sheet Pile，600×300×12mm、600×300×14mm、600×300×16mm、400×100×10.5mm、400×125×13.0mm
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1. Product Overview
Steel sheet pile is a kind of hot-rolled / cold-formed retaining steel profile with precise interlocking locks. It serves as the core material for geotechnical foundation engineering, water conservancy projects, and municipal deep excavation support. By interlocking through bilateral precision locks, the piles form a continuous, closed, high-rigidity steel sheet pile wall with excellent water sealing, soil retaining, bending resistance, impact resistance, and recyclable performance.
Steel sheet piles are specially designed for complex working conditions such as soft soil foundation, silt stratum, quicksand layers, high groundwater levels, waterfront construction, and deep foundation pits where traditional support methods are difficult to construct. Compared with concrete support, channel steel support, and row pile support, steel sheet piles feature fast construction, perfect water stop performance, high safety stability, recyclability, environmental friendliness, small floor space, and no post-demolition work.
Widely used in temporary support, permanent retaining structures, water-stop cofferdams, flood prevention, slope reinforcement, and offshore port engineering, steel sheet piles are currently the most widely used, cost-effective, and safest modular support steel material in domestic and international infrastructure fields.
2. Executive Standards & Material Grades
Domestic Standards
GB/T 20933-2015 Hot Rolled Steel Sheet PilesQ/BQB 170-2023 Cold Formed Steel Sheet Piles
International Standards
EN 10248, EN 10025, ASTM A572, ISO standards, suitable for overseas engineering export projects.
Main Material Grades
Q235BOrdinary carbon structural steel with good plasticity, sufficient toughness, excellent weldability and high cost performance. Suitable for shallow foundation pits, general earthwork excavation, temporary cofferdams, river channel simple support, and short-term cyclic projects.
Q355B / Q355NLHigh-strength low-alloy steel with high yield strength, large bending modulus, strong lateral pressure resistance and excellent low-temperature toughness. Ideal for deep foundation pits, high water and soil pressure, waterfront cofferdams, port terminals, and heavy-load permanent support projects.
S235GP / S355GP (European Standard)Export-grade engineering steel with high purity, stable mechanical properties and strong fatigue resistance, widely used in infrastructure projects in Europe, Southeast Asia, and the Middle East.
3. Product Classification, Structural Features & Application Conditions
3.1 U-Type Steel Sheet Pile (Most Popular & Universal)
Features standard U-shaped cross-section, high locking accuracy, minimal water seepage gaps, balanced bending performance and excellent overall stability.Advantages: Symmetrical structure, easy installation, good soil penetration, uniform earth pressure resistance.Application: Municipal foundation pits, building foundations, river cofferdams, channel treatment, conventional water and soil retaining projects.
3.2 Z-Type Steel Sheet Pile (Heavy-Duty High-Strength Type)
Larger section modulus, higher section height and greater moment of inertia provide far higher overall rigidity than U-type piles.Advantages: Uniform force bearing, strong anti-overturning capacity, excellent deep-water pressure resistance and deformation resistance.Application: Ultra-deep foundation pits, large port terminals, sea-crossing cofferdams, deep-water flood control, large underground pipe corridors, and heavy-load permanent support.
3.3 L-Type Steel Sheet Pile (Light Auxiliary Support)
Lightweight narrow-section structure with small occupation area and flexible installation, mainly used for corner closing and slope protection.Application: Small trench excavation, shallow surface foundation works, boundary closing, slope retaining and flood reinforcement.
3.4 Straight Web Steel Sheet Pile (High-Sealing Water-Stop Type)
Ultra-tight interlocking locks provide high flatness and the highest waterproof grade.Application: High-standard water-stop cofferdams, water purification projects, fully closed anti-seepage structures and deep-water sealing works.
4. Complete Specifications & Dimensions
Standard U-Type Sizes
400×100×10.5mm400×125×13.0mm500×200×10.5mm500×200×12.0mm600×225×14.0mm600×225×18.0mm (Heavy-duty)
Standard Z-Type Sizes
600×300×12mm, 600×300×14mm, 600×300×16mmZ160, Z180 full series high-strength models
Thickness Range
10.5mm – 20mm
Standard Lengths
6m, 9m, 12m, 15m, 18m
Custom Processing Services
Custom cutting, length extension & shortening, pile end beveling, reinforcement, corner cutting, drilling and end welding.Available services: lock shaping, straightening, old pile renovation, derusting, sandblasting, painting and anti-corrosion coating.Custom special-shaped support components and composite structures are acceptable according to drawings.
5. Production Process & Quality Characteristics
5.1 Hot-Rolled Steel Sheet Pile
Produced through high-temperature continuous precision rolling, integral forming, lock precision shaping and mechanical straightening.The steel features dense microstructure, uniform grain distribution, no internal delamination, inclusions or cracks.Integrally formed locks provide high toughness, anti-breaking performance, smooth interlocking and excellent tightness.With high overall strength, fatigue resistance, impact resistance, water pressure resistance and superior soil penetration performance, it is the ideal choice for permanent works, deep-water cofferdams and ultra-deep foundation pits.
5.2 Cold-Formed Steel Sheet Pile
Continuously cold-formed from steel strips with high dimensional accuracy, good flatness and low cost.Lightweight and flexible for quick installation, suitable for short-term temporary support, shallow foundation pits and small earthwork projects.
Internal Quality Control Standards
High straightness without distortion, side bending or wave deformation.Complete and smooth locks without edge collapse or deformation, ensuring uniform locking gaps.Flat surface, uniform thickness and precise cross-section dimensions fully complying with national acceptance standards.
6. Core Product Advantages
6.1 Excellent Water Sealing & Anti-Seepage Performance
High-precision interlocking lock structure ensures tight connection and minimal gaps. With simple auxiliary anti-seepage treatment, it achieves excellent zero-leakage effects and completely solves seepage problems in high-groundwater construction.
6.2 High Overall Rigidity & Strong Lateral Pressure Resistance
Large section modulus and high bending stiffness ensure outstanding structural integrity after wall formation. The sheet pile wall resists deep soil pressure, tidal impact, water flow lateral force and soft soil rheological pressure without deformation, displacement or collapse.
6.3 Fast Construction & Short Project Cycle
Fully mechanized piling operation requires no large-area excavation, steel binding or concrete curing. Construction is unaffected by rainy weather. The support wall is formed and ready for use immediately, shortening the construction period by more than 60% compared with traditional methods.
6.4 Reusable & Low Comprehensive Cost
Steel sheet piles feature excellent fatigue resistance, impact resistance and durability. They can be recycled and reused 6–10 times in standard projects. After construction, piles can be pulled out and reused elsewhere without construction waste or demolition work, greatly reducing overall project investment.
6.5 Small Occupation & Strong Adaptability
Thin pile wall saves construction space, perfectly suitable for narrow sites, urban dense building areas, roadside and pipeline-intensive complex environments.
6.6 Superior Geological Adaptability
Applicable for soft soil, silt, quicksand, backfill soil, sand layers and high-water-level strata, providing the optimal solution for poor foundation support conditions.
6.7 Green Construction & High Safety Factor
Low noise, no dust and no construction waste, meeting green construction standards. Continuous integral support effectively eliminates foundation pit collapse and slope sliding risks, ensuring far higher safety than traditional support systems.
7. Application Scope
Municipal Civil Engineering
Deep foundation pit support, underground garage foundation, utility tunnel foundation, subway tunnel excavation, thermal pipeline trenching, water supply and drainage support, urban renovation foundation works.
Water Conservancy & Flood Control Engineering
River dredging cofferdams, riverbank reinforcement, lake treatment, channel anti-seepage, flood emergency cofferdams, dyke support and rainy season water-stop projects.
Port & Marine Engineering
Harbor revetment, trestle foundation, sea-crossing cofferdams, offshore platform temporary water-stop, port soft foundation reinforcement and tidal zone retaining support.
Bridge Infrastructure Engineering
Bridge cap cofferdams, pile foundation water-stop protection, abutment slope protection, road foundation reinforcement and highway slope support.
Emergency & Temporary Works
Landslide reinforcement, sudden collapse treatment, temporary water & soil retaining, construction partition isolation and emergency risk elimination.
Permanent Protection Works
Landscape river revetment, permanent anti-seepage walls, foundation permanent reinforcement and hydraulic structural protection.
8. Delivery Status & Surface Quality
Delivery Condition: Hot-rolled black surface / cold-formed original surfaceOptional Processing: Derusting, sandblasting, anti-rust paint, finish coating, customized anti-corrosion treatment and pile head reinforcement.
Surface quality: Straight and regular pile body, free of cracks, delamination, overlaps and heavy rust. Complete and smooth locks without edge breakage or deformation. Precise dimensional tolerance and qualified straightness, ready for direct piling construction.
9. Delivery Cycle
Regular in-stock standard U-type piles (6m/9m/12m): 1–3 working days
Custom cutting, straightening, renovation and anti-corrosion orders: 3–5 working days
Extra-long size, heavy-duty Z-type piles and large-batch engineering orders: 5–10 working days
Priority production, urgent delivery and full logistics tracking are available to guarantee project schedules.
10. Quality Assurance & Technical Documents
All steel sheet piles are produced in strict accordance with national standards with stable chemical composition and qualified mechanical properties. Bending strength, yield strength, elongation and impact resistance fully meet engineering requirements.
Each batch is supplied with original mill quality certificate, factory inspection certificate, mechanical property test report and chemical composition report. Complete documents support site acceptance, third-party re-inspection, bidding filing and project audit.
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