Know more about the specifications and dimensions of steel sheet piles
ASTM A328 U-Type Steel Sheet Pile | Manufacturer & Supplier
Manufactured from hot-rolled carbon steel, ASTM A328 U-type steel sheet piles are robust structural components commonly utilized in a wide range of construction scenarios, including retaining wall construction, cofferdam fabrication, marine engineering, excavation bracing, seawater barrier installation and various foundation works.
Featuring a professional U-shaped cross-section, these sheet piles enable tight interlock between adjacent units, forming fully continuous and structurally stable retaining systems for on-site support. Royal Steel Group offers ASTM A328 U-type steel sheet piles in a comprehensive range of standard sizes and lengths. Bespoke dimensional solutions are also available to meet the unique technical requirements of different infrastructure and civil engineering projects.
| Item | Specification |
| Product | U-Type Steel Sheet Pile |
| Standard | ASTM A328/A328M |
| Material | Carbon Structural Steel |
| Profile | U Type |
| Manufacturing | Hot Rolled |
| Width | 400–600 mm |
| Height | 100–225 mm |
| Thickness | 9.4–23.5 mm |
| Standard Length | 6 m, 9 m, 12 m, 15 m, 18 m |
| Custom Length | Available |
| Surface | Black / Bare Steel |
| Interlock | Larssen / Hot-Rolled Interlock |
| Inspection | Dimensional, Visual & Mechanical Testing |
| Certification | MTC / Third-Party Inspection Available |
Note: Final dimensions, tolerances, mechanical properties, and chemical requirements should be confirmed against the applicable ASTM A328/A328M edition and the selected sheet pile profile.
The ASTM A328/A328M standard defines mandatory tensile test criteria for structural carbon steel sheet piling, covering key mechanical properties such as tensile strength, yield strength and elongation values. This industry specification applies specifically to carbon steel sheet piles that are manufactured for structural load-bearing applications in construction projects.
| Property | ASTM A328 Requirement |
| Minimum Tensile Strength | 70 ksi [485 MPa] |
| Minimum Yield Point | 39 ksi [270 MPa] |
| Elongation | According to ASTM A328/A328M requirements |
For a specific project, Royal Steel Group can provide the applicable Mill Test Certificate (MTC) showing the actual chemical and mechanical test results for the supplied material.
U-type sheet piles feature a U-shaped cross-section with interlocking edges along both sides. When installed, individual piles connect to form a continuous steel sheet pile wall.
Key Profile Advantages
Continuous interlocking wall system
Efficient use of steel section properties
Suitable for temporary and permanent structures
Compatible with vibratory and impact pile installation
Available in different widths, heights, and thicknesses
Suitable for customized project lengths
The final sheet pile section should be selected according to required wall stiffness, section modulus, bending resistance, soil conditions, water pressure, and installation equipment.
Royal Steel Group can supply different U-type profiles according to project requirements.
| Profile Example | Width | Height | Typical Application |
| U-Type | 400 mm | 100–150 mm | Light retaining structures |
| U-Type | 400 mm | 150–225 mm | Excavation & foundation support |
| U-Type | 500 mm | 200–225 mm | Retaining & marine projects |
| U-Type | 600 mm | 130–225 mm | Heavy-duty infrastructure |
Custom sizes and lengths can be discussed according to engineering drawings and project specifications.
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Retaining Walls
U-type steel sheet piles are a common solution for earth retention works, effectively resisting and stabilizing lateral soil pressure on job sites.
Cofferdams
Thanks to their interlocking design, these sheet piles can assemble reliable temporary enclosed structures, allowing safe construction operations in aquatic and waterside environments.
Marine Construction
Common marine engineering applications cover dock structures, coastal seawalls, quay walls, port infrastructure, waterfront retention works and offshore foundational systems.
Excavation Support
Installed around excavation perimeters, U-type sheet piles deliver dependable lateral restraint, serving both temporary construction bracing and permanent structural support needs.
Flood & Water Protection
Steel sheet pile systems are widely adopted for river bank stabilization, flood defense works, drainage system development and soil erosion prevention projects.
The ASTM A328/A328M standard sets forth formal tensile testing requirements for structural-grade carbon steel sheet piles, governing core mechanical performance indicators including tensile strength, yield strength and elongation. This specification is tailored for carbon steel sheet piling products intended for structural use in dock, seawall, cofferdam, excavation and other similar civil and marine construction scenarios.
Royal Steel Group offers full inspection support and quality documentation for ASTM A328 U-type steel sheet piles.
Our inspection scope covers:
Chemical composition
Tensile strength
Yield strength
Elongation
Thickness
Width
Height
Length
Section profile dimensions
Straightness
Surface finish
Heat number traceability
Available documents:
Mill Test Certificate (MTC)
Inspection Report
Heat traceability records
Third-Party Inspection Report
Packing List
Commercial Invoice
Certificate of Origin
ASTM A328/A328M steel sheet pile supply
U-type hot-rolled sheet piles
Multiple profile sizes
Customized lengths
Factory-direct B2B supply
MTC and heat number traceability
Third-party inspection available
Export packing and logistics support
Experience with marine and infrastructure projects
Technical support for project specifications
1) Branch Office - Spanish-speaking support, customs clearance assistance, etc.
2) Over 5,000 tons of stock in stock, with a wide variety of sizes
3) Inspected by authoritative organizations such as CCIC, SGS, BV, and TUV, with standard seaworthy packaging
Sheet piles are normally bundled according to profile, length, quantity, and customer requirements.
Packaging
Steel strap bundles
Profile-separated bundles
Customer-required marking
Export-standard loading
Delivery
Royal Steel Group supports:
Container shipment
Bulk vessel shipment
FOB
CIF
DDP
For large infrastructure projects, loading plans can be prepared according to vessel or container capacity to improve transportation efficiency.
1. What is ASTM A328 U-type steel sheet pile?
It refers to U-shaped carbon steel sheet piles fabricated in compliance with ASTM A328/A328M. Engineers commonly select this product for retaining walls, cofferdams, seawalls, dock structures and excavation bracing.
2. What is the minimum yield strength for ASTM A328 sheet piles?
Per ASTM A328/A328M, the minimum yield point is 39 ksi (270 MPa).
3. What tensile strength does ASTM A328 steel sheet pile have?
Its minimum required tensile strength stands at 70 ksi (485 MPa).
4. What lengths can you supply?
Standard options cover 6 m, 9 m, 12 m, 15 m and 18 m. We also cut custom lengths to match individual project needs.
5. Are these U-type sheet piles suitable for marine construction?
Absolutely. ASTM A328/A328M explicitly includes dock walls and seawalls within its scope, so the material works well for marine projects.
6. Is MTC available with shipments?
Yes. We can supply Mill Test Certificates that list material identifiers plus chemical and mechanical test data as required for each order.
7. Can I get custom U-type sheet piles?
Sure. Send us your requirements including section profile, length, quantity, project site, standard and delivery terms, and we will prepare a quotation accordingly.
Looking for ASTM A328 U-type steel sheet piles for a retaining wall, cofferdam, marine project, or deep excavation?
Send us your required size, length, quantity, project location, and delivery terms.
Royal Steel Group can provide a specification-based quotation, production schedule, MTC, inspection support, and international shipping solution.
Contact Details
Address
Kangsheng development industry zone,
Wuqing district, Tianjin city, China.
Phone
Hours
Monday-Sunday: 24-hour Service
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