Hot Rolled Steel Sheet Pile SP-III 400×125×13mm SY295 JIS A 5528
Hot Rolled Steel Sheet Pile SP-III 400×125×13mm SY295 JIS A 5528
SP-III Hot Rolled Steel Sheet Piles are designed for foundation pit support, retaining walls, and general earth-retaining applications. With a section size of 400 × 125 × 13 mm, SY295 steel grade, and compliance with JIS A 5528, they offer reliable strength and interlocking performance for construction projects. Multiple sizes and lengths are available to meet different engineering requirements. Contact us for specifications, material certificates, and a competitive quotation.
- Mill Test Certificate Provided
- Strict Quality Inspection
- Custom Sizes Available
- On-Time Global Delivery
Sky Steel Group manufactures and supplies heavy-duty SP-III (Type 3) 400 × 125 × 13 mm hot-rolled U-type steel sheet piles (JIS A 5528 SY295 standard). Specifically engineered for deep foundation pit shoring, retaining wall construction, temporary cofferdams, and riverbank flood protection works, our Type III Larssen interlock sheet piles deliver high section modulus ($1,340\text{ cm}^3\text{/m}$ of wall), exceptional driveability, tight interlock water-tightness, and multiple reuse cycles in harsh soil and groundwater conditions.
High Section Modulus, Precision Larssen Interlock & Reusable Driving Durability
Hot-rolled SP-III U-profile sheet piles (400 mm width × 125 mm height × 13.0 mm thickness, unit weight 60.0 kg/m) are hot-formed from high-yield structural carbon steel (SY295, yield strength ≥ 295 MPa). The symmetrical U-shape design places the continuous Larssen interlocks equidistant from the neutral axis, optimizing stress distribution during impact or vibratory hammer installation. The thickened 13.0 mm web and flange provide robust resistance against buckling, distortion, and declutching under dense sand, stiff clay, or gravel strata.
Precision hot-rolled claw-and-socket interlocks ensure smooth interlocking continuity along the entire drive length (6 m to 18 m), effectively sealing against groundwater ingress and soil migration. Mill value-added services include cut-to-length processing, corner pile fabrication (welded junction piles), lifting hole punching, driving cap fitting, and bitumen/polyurethane sealant pre-application.
SP-III 400 × 125 × 13 mm U-Type Steel Sheet Pile Specifications
| Item | Technical Specification / Standard Engineering Parameter |
|---|---|
| Product Name | Hot-Rolled U-Type Steel Sheet Pile / Type III Larssen Sheet Pile / SP-III / FSP-III / Sheet Piling |
| Profile Dimensions | Width ($W$): 400 mm × Height ($H$): 125 mm × Thickness ($t$): 13.0 mm |
| Steel Grade | JIS A 5528 SY295 / SY390 / ASTM A572 Grade 50 / EN 10248 S270GP, S355GP / GB/T 20933 Q295P, Q355P |
| Manufacturing Standard | JIS A 5528 (Hot Rolled Steel Sheet Piles) / EN 10248-1 & 2 / ASTM A572 / GB/T 20933 |
| Interlock Profile | Continuous Hot-Rolled Larssen Interlock (Claw & Socket Tight Clutch) |
| Unit Weight (Linear) | 60.0 kg/m (Single Pile) |
| Wall Weight | 150.0 kg/m² (Continuous Interlocked Wall) |
| Moment of Inertia ($I_x$) | Single Pile: 1,680 cm&sup4; / Continuous Wall: 8,700 cm&sup4;/m |
| Elastic Section Modulus ($W_x$) | Single Pile: 223 cm³ / Continuous Wall: 1,340 cm³/m |
| Mechanical Properties | Yield Strength ($R_e$): ≥ 295 MPa / Tensile Strength ($R_m$): ≥ 490 MPa / Elongation ($A$): ≥ 17% |
| Standard Lengths | 6.0 m, 9.0 m, 12.0 m, 15.0 m, 18.0 m (Custom Lengths Cut to Order up to 24 m) |
| Dimensional Tolerances | Height: ±4.0 mm / Width: ±6.0 mm / Thickness: −1.0 mm / +1.5 mm / Straightness: ≤ 0.12% of total length |
| Primary Applications | Deep Foundation Pit Excavation Shoring / Earth Retaining Walls / Bridge Abutments / Riverbank Protection / Port & Harbor Quay Walls / Temporary Cofferdams |
| Inspection & Testing | EN 10204 3.1 Mill Test Certificate (MTC) / Interlock Continuity Test / Ultrasonic Testing (UT) / SGS, BV Third-Party Inspection |
| Export Packaging | Interlocked Nested Bundles secured with High-Tensile Steel Strapping and Lifting Wire Slings for Container or Break-Bulk Shipping |
Need a Project Wholesale Quote for SP-III 400×125×13mm Steel Sheet Piles?
Send us your required pile lengths (6m/9m/12m/15m/18m), total metric tonnage, delivery terms (FOB/CIF), and custom requirements (lifting holes/sealant) for an immediate factory quote.
Where Are SP-III (Type 3) 400 × 125 × 13 mm Steel Sheet Piles Used?
Combining structural bending strength, excellent soil displacement capability, and watertight Larssen clutch interlocking, SP-III SY295 hot-rolled U sheet piles serve as the standard civil engineering solution for excavation retaining, bridge foundations, river revetments, and marine waterfront structures.
Deep Foundation Excavation, Earth Retaining & Marine Quay Walls
SP-III sheet piles are driven continuously around urban basement excavations, bridge piers, road embankments, and coastal port quays. The 13.0 mm structural web thickness withstands high lateral earth and hydrostatic groundwater pressures, creating a rigid barrier that prevents soil collapse, slope instability, and adjacent building settlement during deep excavation.
Hot-Rolling Mill Production & Precision Nested Inventory
Manufactured on continuous hot-rolling structural mills under strict dimensional monitoring for interlock opening clearance, profile straightness, and cross-sectional symmetry. Piles are neatly interlocked and nested in warehouse stockyards, enabling compact storage, fast order consolidation, and prompt dispatch for major infrastructure tenders.
Interlocked Nested Bundles & High-Density Container Loading
Pairs of SP-III U sheet piles are reverse-nested into compact interlocking stacks bound with heavy steel banding and certified lifting wire straps. For 6.0 m and 11.8 m lengths, bundles are forklift-loaded directly into 20GP or 40GP/40HQ shipping containers (25–28 MT payload) with solid timber chocking, while longer lengths (15 m – 24 m) are shipped break-bulk with rust-preventive protection.
SP-III 400 × 125 × 13 mm Steel Sheet Pile FAQ
Answers to technical engineering questions regarding JIS A 5528 SY295 steel grade, sectional properties, driveability, watertight sealing, and container export logistics.
