Download the Latest Z Type Steel Sheet Pile Specifications and Dimensions.
ASTM A328 Z-Type Steel Sheet Pile | Royal Steel Group
ASTM A328 Z-type hot rolled steel sheet piles are commonly adopted for retaining walls, deep excavation, cofferdams, marine constructions and foundation projects. Featuring a Z-shaped geometry, these sheet piles deliver high section modulus and optimized material distribution, offering reliable lateral load capacity and continuous earth retention.
Royal Steel Group supplies ASTM A328 Z sheet piles tailored to individual project requirements, including custom profiles, lengths and order volumes. Material test certificates and inspection reports can be prepared as requested by buyers.
| Item | Details |
| Product | Z-Type Steel Sheet Pile |
| Standard | ASTM A328 / A328M |
| Profile | Z-Type |
| Manufacturing | Hot Rolled |
| Steel Type | Carbon Structural Steel |
| Length | Customized, commonly 6–18 m |
| Thickness | Customized according to profile |
| Surface | Black / As Rolled |
| Connection | Interlocking |
| Inspection | Mill Test Certificate / Third-Party Inspection |
| Application | Retaining Walls, Excavation, Cofferdams, Marine Works |
Note: Actual dimensions, mechanical properties and chemical requirements should be confirmed against the applicable ASTM A328/A328M edition and the project specification. ASTM A328/A328M-24 covers chemical and tensile-test requirements including phosphorus, sulfur, copper, tensile strength, yield point and elongation.
| Section | Effective Width (mm) | Effective Height (mm) | Web Thickness (mm) | Unit Weight (kg/m) | Unit Weight (kg/m2) | Section Modulus (cm2/m) |
| PZ22 | 560 | 229 | 9.5 | 60 | 107.4 | 973 |
| PZ27 | 457 | 305 | 9.5 | 60.3 | 131.8 | 1,620 |
| PZ35 | 575 | 378 | 15.2 | 98.2 | 170.9 | 2,608 |
| PZ40 | 500 | 409 | 15.2 | 97.6 | 195.3 | 3,263 |
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| Feature | Z-Type | U-Type |
| Profile | Z-shaped | U-shaped |
| Section Efficiency | High | Project dependent |
| Typical Use | Deep retaining walls, marine works | Excavations, cofferdams, retaining walls |
| Interlock | Along neutral-axis arrangement depending on profile | Located near center of section |
| Selection | Based on section modulus and design loads | Based on section modulus and design loads |
Neither profile is universally better. Engineers should select the section based on structural calculations, soil conditions, installation requirements and project specifications.
Royal Steel Group delivers steel sheet piles manufactured to meet international project specifications.
Main applicable standard:
ASTM A328 / A328M
Other frequently specified sheet pile standards:
EN 10248
GB/T 20933
JIS A 5528
For projects calling for higher strength grades or special mechanical performance, material grade and testing requirements need to be finalized prior to production.
High Bending Efficiency
Thanks to its Z-form cross section, steel is arranged optimally to withstand heavy lateral earth pressure in retaining works.
Continuous Interlocking Wall
Each sheet pile locks together to build a seamless steel barrier. This assembly holds back soil, and can also restrict water seepage through the wall, subject to pile type and installation quality.
Suitable for Deep Excavations
Z sheet piles work well for both temporary and permanent excavation support, foundation pits and underground construction projects.
Custom Lengths for Projects
Royal Steel Group offers sheet piles cut to project lengths. This minimizes on-site cutting work and streamlines site installation.
ASTM Specification
ASTM A328/A328M covers structural grade steel sheet piles, commonly specified for dock walls, seawalls, cofferdams and excavation support.
Retaining Walls
Ideal for both permanent and temporary earth retention projects that require a continuous steel barrier.
Deep Excavation
Well suited for foundation pits, basement works, underground structures and general infrastructure builds.
Cofferdams
Z-type sheet piles are driven to form watertight temporary enclosures for construction within or adjacent to water bodies.
Marine Structures
Commonly deployed for waterfront retaining walls, port developments, quay walls and other coastal marine projects.
Bridge and Road Projects
Applied on abutments, approach embankments, temporary bracing and earth retaining components.
Foundation Engineering
Can be paired with anchors, walers, struts or other bracing systems as specified in the project design.
Project-Based Supply
Our quotations are prepared based on the sheet pile profile, steel grade, length, total quantity and site application. We avoid generic standard pricing.
International Standards
We can fulfill orders complying with ASTM, EN, GB and JIS technical requirements.
Inspection Documentation
Material test certificates and third-party inspection services are available as required by your project.
Export Experience
We have exported steel sheet piles for infrastructure, foundation, marine and general construction projects worldwide.
Flexible Specifications
Steel length, cross-section profile, material grade and surface finish can all be confirmed and adjusted prior to production.
1) 13+ years global export experience, Stable supply from top Chinese mills
2) Projects across Asia, South America, Middle East
3) Flexible production & customization
4) Technical support for project selection
Steel sheet piles are bundled for easy lifting, loading and unloading prior to delivery.
Royal Steel Group offers flexible shipping options:
Bulk vessel shipment
Containerized shipment where feasible
Bundle packing
Steel band strapping
Custom shipping marks
Marking for length & quantity identification
Full set of export paperwork
MTC and third-party inspection certificates
For large infrastructure projects, shipment plans can be arranged under FOB, CIF or other agreed Incoterms.
1. What is ASTM A328 Z-type steel sheet pile?
ASTM A328 Z-type sheet piles are structural steel piling products fabricated in strict accordance with the ASTM A328/A328M industry standard. Featuring a unique Z-shaped cross-section, they are widely utilized for earth retention systems, construction cofferdams, deep excavation support, marine structural works and various civil engineering projects.
2. What are the key advantages of Z-type sheet piles?
The optimized Z-section structure delivers exceptional bending performance with rational steel distribution. Compared with traditional sheet pile profiles, it offers higher structural rigidity and lateral load resistance, making it the ideal choice for long-span retaining walls and deep foundation retention projects that demand superior structural stability.
3. Are Z-type sheet piles suitable for permanent construction works?
Absolutely. Z-type sheet piles are applicable to both temporary construction support and permanent structural projects. As long as the section profile, steel grade, anti-corrosion treatment and overall structural design match the actual site conditions and project specifications, they can serve as long-term reliable structural components.
4. What custom lengths can you provide?
Royal Steel Group offers fully customized sheet pile lengths to fit diverse project needs. The most commonly used lengths for engineering projects range from 6 meters to 18 meters. All customized sizes are formulated based on production feasibility and on-site transportation conditions to ensure convenient delivery and construction.
5. Can you provide official MTC documents?
Yes, we provide formal Mill Test Certificates for all orders. The full set of material test documents will be issued in line with confirmed order specifications and customer requirements, to guarantee material quality traceability and project compliance.
6. Do you export Z-type sheet piles to Latin American markets?
Certainly. Royal Steel Group has extensive export experience in Latin America. We consistently supply high-quality Z-type steel sheet piles for local infrastructure, civil construction and marine engineering projects, covering major markets including Mexico, Chile, Peru, Central American countries and other regional territories.
Send us your ASTM standard, Z-type profile, steel grade, length, quantity and project application.
Royal Steel Group can provide a project-based quotation for ASTM A328 Z-Type Steel Sheet Piles, including MTC, inspection and international shipping options.
Contact Details
Address
Kangsheng development industry zone,
Wuqing district, Tianjin city, China.
Phone
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