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Steel Sheet & Plate & Steel Sheet Pile，Q235B、Q295P/Q345P、Q420PNegotiableMOQ: 5 Metric Tons -
Steel Sheet & Plate & Steel Sheet Pile，Q235B、Q295P/Q345P、Q420PNegotiableMOQ: 5 Metric Tons
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Steel Sheet & Plate & Steel Sheet Pile，Q235B、Q295P/Q345P、Q420PNegotiableMOQ: 5 Metric Tons
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Steel Sheet & Plate & Steel Sheet Pile，Q235B、Q295P/Q345P、Q420PNegotiableMOQ: 5 Metric Tons
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Steel Sheet & Plate & Steel Sheet Pile，Q235B、Q295P/Q345P、Q420PNegotiableMOQ: 5 Metric Tons
Steel Sheet Pile - Product Description
1. Product Overview
Steel sheet pile is a hot-rolled or cold-formed section steel with interlocking clutches at edges. It can be connected mutually to form continuous and tight retaining walls for soil and water. It is widely used in temporary and permanent retaining projects, featuring high strength, excellent water tightness, reusable performance and high construction efficiency.
2. Production Process & Classification
2.1 By Production Process
Hot-rolled Steel Sheet Pile (Mainstream)Manufactured by high-temperature rolling. It features precise dimensions, well-sealed clutches and superior mechanical properties, suitable for heavy-load and deep-water projects.
Cold-formed Steel Sheet Pile (Economical Type)Formed by cold bending of thin steel strips. It offers flexible customized lengths and lower cost, while with relatively weaker clutch tightness and anti-tearing performance. It is mainly applied to shallow foundation pits and temporary works.
2.2 By Cross-section Shape
U-type (PU, Most Widely Used)High lateral stiffness and bending resistance with tight interlocks. Ideal for wharves, deep foundation pits and cofferdams. Typical models: SP-III, SP-IV, 600×210 series.
Z-type (PZ)Large section modulus and good penetration performance. Applied to ultra-deep foundation pits, quay walls and large water conservancy projects. Typical models: Z160, Z180, 700×320 series.
Straight-type (PI)Flat structure, easy for driving and good water resistance, but low bending stiffness. Suitable for shallow support, small cofferdams and temporary retaining walls.
3. Material & Core Parameters
3.1 Common Materials (Standard: GB/T 20933-2021)
Q235B: Yield strength 235MPa, general grade for conventional projects with high cost performance.
Q295P / Q345P: Yield strength 295MPa / 345MPa, high-strength grade for deep foundation pits and heavy-load conditions.
Q420P: Ultra-high strength grade, adopted for large water conservancy projects and port terminals.
3.2 Main Specifications (Mainstream U-type / Larssen Series)
| Model | Width (mm) | Height (mm) | Thickness (mm) | Unit Weight (kg/m) | Section Modulus (cm³/m) | Application |
|---|---|---|---|---|---|---|
| SP-III | 400 | 125 | 13 | 60 | 425 | Shallow foundation pits & general support works |
| SP-IV | 400 | 170 | 15 | 76.1 | 608 | Deep foundation pits & quay walls |
| 600×210×18 | 600 | 210 | 18 | 106 | 812 | Large cofferdams & water conservancy hubs |
| 700×320×13.5 | 700 | 320 | 13.5 | 118 | 952 | Ultra-deep foundation pits & port projects |
3.3 Delivery & Dimensions
Standard lengths: 6m, 9m, 12m, 15m; maximum customized length up to 24m.
Weight calculation: Theoretical weight or actual weight available.
Packaging: Bundled, 10-20 pieces per bundle.
4. Product Advantages
Excellent Water Tightness: Closely interlocked clutches. Equipped with water stop strips to achieve nearly zero water seepage, perfect for areas with high underground water level and soft soil.
High Construction Efficiency: Constructed by hydraulic vibratory hammers or static piling machines. Low noise and dust, shortening construction period by over 30%, applicable to narrow sites.
Reusable: Robust material with good corrosion resistance, reusable for more than 50 times, reducing comprehensive cost for long-term projects.
Wide Geological Adaptability: Can be driven into soft soil, sand, silt and silty clay, applicable to loose strata with N value ≤ 30.
Eco-friendly & Economical: No large-scale excavation and earthwork transportation. The piles can be pulled out and recycled after use, generating no construction waste.
5. Application Fields
Water Conservancy Projects: River revetment, dike reinforcement, cofferdam, sluice foundation, flood wall.
Building Construction: Deep foundation pit support, underground garage & utility tunnel enclosure, soft soil foundation pit retaining.
Port & Wharf: Quay wall support, dock cofferdam, port foundation, breakwater.
Municipal Engineering: Utility tunnel, metro foundation pit, rainwater pumping station, inspection well support.
Other Fields: Bridge pier support, roadbed reinforcement, temporary retaining wall, emergency flood control cofferdam.
6. Executive Standards
National Standard: GB/T 20933-2021 Hot Rolled Steel Sheet Piles
Industry Standard: JG/T 196-2018 Steel Sheet Piles
7. Installation & Storage
7.1 Installation Guidelines
Conduct setting out and positioning. Use double theodolites to monitor verticality, with deviation controlled within 1/150.
Clean clutches thoroughly and apply grease or water stop agent to ensure smooth connection and good water tightness.
Drive piles symmetrically from the middle to both sides to avoid cumulative deviation.
Install steel bracings or anchor cables for deep foundation pits to control deformation and displacement.
7.2 Storage Requirements
Store on flat and dry ground, keep away from water ponding and corrosion.
Stack in layers with each layer height no more than 1.5m to prevent deformation and clutch damage.
Cover with tarpaulin for long-term storage, and regularly inspect anti-rust condition and clutch integrity.
8. Quality Assurance
Material: Material test certificates including chemical composition and mechanical property reports are provided.
Dimension: Dimensional tolerance complies with GB/T 20933-2021. Clutch clearance ≤ 2mm, straightness ≤ 1/1000.
Surface: Free from cracks, severe rust and deformation; clutches are smooth and burr-free.
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