Wholesale Hot Rolled U/Z II III IIIA IV VL Steel Sheet Lassen Piles Manufacturer and Supplier

Hot Rolled U/Z II III IIIA IV VL Steel Sheet Lassen Piles

Short Description:

Hot Rolled U/Z Type II III IIIA IV VL Lassen Steel Sheet Piles feature high strength, tight interlocking, and excellent durability. Ideal for retaining walls, cofferdams, foundation pits, port and coastal engineering.

Standard: ASTM A328 / EN 10248 / JIS A5528 / GB/T 29737

Type: U/Z Type II, III, IIIA, IV, VL Lassen Interlocking Sheet Pile

Technique: Hot Rolled

Material Grade: ASTM A572 Gr.50, Q235B, Q345B, SY295, SY390, S235JR, S275JR

Thickness: 9.4mm/0.37in–23.5mm/0.92in

Length: 6m、9m、12m、15m,18m and custom

Certificates: ASTM, CE, SGS certification, BV, TUV

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Product Detail

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Product Introduction

Item	Detail
Standard	ASTM A328 / EN 10248 / JIS A5528 / GB/T 29737
Grade	ASTM A572 Gr.50, Q235B, Q345B, SY295, SY390, S235JR, S275JR
Type	U-Type / Z-Type / Larssen Sheet Pile
Process	Hot-Rolled / Cold-Formed steel sheet piles
Length	6m - 18m, Custom Available
Width	200mm - 900mm (Profile-dependent)
Thickness	4mm - 12mm
Surface	Mill Finish / Coated / Hot-Dip Galvanized
Stock	80000+ Tons in Stock
Export	SEA / Middle East / Americas / Europe
Lead Time	7 - 15 Days (Factory Direct)

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Steel Sheet Pile Chemical Composition (%)

Standard	Grade	Carbon (C)	Manganese (Mn)	Phosphorus (P)	Sulfur (S)	Silicon (Si)
GB/T 29737	Q235B	0.22	1.40 max	0.035	0.035	0.35 max
GB/T 29737	Q345B	0.2	1.00 - 1.60	0.035	0.035	0.50 max
ASTM	A36	0.25	0.80 - 1.20	0.04	0.05	0.15 - 0.40
ASTM	A572 Gr.50	0.23	0.67 - 1.65	0.035	0.04	0.50 max
ASTM	A992	0.23	0.50 - 1.70	0.035	0.045	0.50 max
EN 10248	S235JR	0.17	1.40 max	0.035	0.035	0.35 max
EN 10248	S275JR	0.22	1.50 max	0.035	0.035	0.55 max
EN 10248	S355JR	0.22	1.60 max	0.035	0.035	0.55 max
JIS	SY295	0.22	0.50 - 1.60	0.035	0.035	0.20 - 0.35
JIS	SY390	0.22	0.80 - 1.60	0.035	0.035	0.20 - 0.50
JIS	SY490	0.23	0.90 - 1.60	0.035	0.035	0.20 - 0.55

Steel Sheet Pile Mechanical Properties

Material Standard	Steel Grade	Min. Yield Strength (MPa)	Tensile Strength (MPa)	Elongation (%)	Brinell Hardness (HB)
ASTM	A36	250	400-550	≥20	119-159
ASTM	A572 Gr.50	345	450-620	18-21	140-180
ASTM	A992	345	450-620	18-22	140-180
EN 10248	S235JR	235	360-510	≥26	120-160
EN 10248	S275JR	275	430-580	≥23	130-170
EN 10248	S355JR	355	470-630	≥20	140-180
JIS	SY295	295	430-570	≥22	130-170
JIS	SY390	390	520-650	≥20	140-180
JIS	SY490	490	560-690	≥18	150-190
GB/T 29737	Q235B	235	370-500	≥26	120-160
GB/T 29737	Q345B	345	470-630	≥20	140-180

Steel Sheet Piles Size

ASTM A588 JIS A5528 U Steel Sheet Pile SIZE

Pile Type	Dimensions (mm)			Sectional Area (cm²/pile)	Mass		Moment of Inertia (I, cm⁴/m)	Section Modulus (W, cm³/m)
Pile Type	Width (w)	Height (h)	Thickness (t)	Sectional Area (cm²/pile)	Pile Weight (kg/m)	Wall Weight (kg/m²)	Moment of Inertia (I, cm⁴/m)	Section Modulus (W, cm³/m)
Type IA	400	85	8	45.21	35.5	88.8	4500	529
Type II	400	100	10.5	61.2	48	120	8740	874
Type III	400	125	13	76.4	60	150	16800	1340
Type IIIA	400	150	13.1	74.4	58.4	146	22800	1520
Type IV	400	170	15.5	97	76.1	190	38600	2270
Type VL	500	200	24.3	133.8	105	210	63000	3150
Type VIL	500	225	27.6	153	120	240	86000	3820
Type IIW	600	130	10.3	78.7	61.8	103	13000	1000
Type IIIW	600	180	13.4	104	81.6	136	32400	1800
Type IVW	600	210	18	135.3	106	177	56700	2700

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U-Type Steel Sheet Piles Corrosion Prevention Solution

For our clients across the Americas:
We supply hot-dip galvanized steel sheet piles manufactured to ASTM A123, with a minimum 85μm zinc coating for solid, long-lasting corrosion protection. If you’re working on tough marine or underground jobs, we also offer an optional 3PE coating for maximum durability. All our surface treatments are environmentally safe, fully RoHS compliant, and meet the sustainability requirements of markets throughout the Americas.

Southeast Asia:
We apply hot-dip galvanizing with a minimum coating thickness of 100 μm, together with dual-layer epoxy coal tar coating. This combined protection offers strong, long-lasting corrosion resistance, and can pass more than 5,000 hours of salt spray testing with no sign of rust. It is specially designed to perform reliably in tropical, high-humidity marine environments across Southeast Asia.

U-Type Steel Sheet Piles Locking and Waterproof Performance

Design
Our proprietary Yin-Yang interlock profile creates a rock-solid, gap-free seal between adjacent sheet piles, delivering a permeability rating of ≤ 1×10⁻⁷ cm/s for industry-leading watertight performance.

Americas
Fully tested and certified to ASTM D5887 standards, this interlock system effectively cuts down water seepage in retaining walls, foundation pits and other critical structures, meeting strict North/South American engineering requirements.

Southeast Asia
Engineered specifically to block groundwater intrusion during Southeast Asia’s heavy tropical rains and monsoon seasons, it delivers consistent, reliable performance even in areas with permanently high water tables.

U-Type Steel Sheet Piles Production Process

Steel Selection
We use high-grade structural steel to guarantee the required strength and long-term durability for engineering projects.

Heating
Steel billets are heated to approximately 1,200°C to reach ideal malleability before rolling.

Hot Rolling
The heated steel is rolled into accurate U-type profiles through professional rolling mills.

Cooling
We apply natural or water cooling to stabilize and achieve the target mechanical properties.

Straightening & Cutting
Finished profiles are straightened precisely and cut to standard or customer-specified lengths.

Quality Inspection
Each product is inspected for dimensional accuracy, mechanical performance, and surface quality.

Surface Treatment (Optional)
Additional anti-corrosion treatments such as galvanizing or coating are available upon request.

Packaging & Shipping
Products are securely bundled and protected for safe delivery to job sites worldwide.

U-Type Steel Sheet Piles Main Application

Port and Dock Protection
U-type sheet piles offer excellent resistance to water pressure and ship impacts, making them ideal for ports, docks and other marine structures.

River and Flood Control
They are widely used for riverbank reinforcement, dredging support, dikes and flood walls to keep waterways safe and stable.

Foundation and Excavation Engineering
They work as stable retaining and support structures for basements, tunnels and deep foundation pit projects.

Industrial and Hydraulic Engineering
They are applied in hydropower plants, pumping stations, pipelines, culverts, bridge piers and waterproof projects with reliable structural performance.

Royal Steel Group Advantage（Why Royal Group Stands Out for Americas Clients?）

A Closer Look at ROYAL GROUP's Steel Sheet Piling Solutions Z and U Type Steel Sheet Piles

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

Packing And Delivery

Steel Sheet Pile Packaging & Handling/Transport Specifications

Packaging Requirements
Strapping
Steel sheet piles are bundled together, with each bundle firmly fastened using metal or plastic strapping to ensure structural integrity during handling.
End Protection
To avoid damage to bundle ends, they are either wrapped in heavy-duty plastic sheeting or capped with wooden guards—effectively shielding against impacts, scratches, or deformation.
Rust Protection
All bundles undergo anti-rust treatment: options include coating with anti-corrosive oil or full encapsulation in waterproof plastic film, which prevents oxidation and preserves material quality during storage and transit.

Handling & Transportation Protocols
Loading
Bundles are safely hoisted onto trucks or shipping containers using industrial cranes or forklifts, with strict adherence to load-bearing limits and balance guidelines to avoid tipping or damage.
Transit Stability
Bundles are stacked in a stable configuration and further secured (e.g., with additional strapping or blocking) to eliminate shifting, collision, or displacement during transportation—critical for preventing both product damage and safety hazards.
Unloading
Upon arrival at the construction site, bundles are carefully unloaded and positioned for immediate deployment, streamlining workflow and minimizing on-site handling delays.

Stable cooperation with shipping companies such as MSK, MSC, COSCO efficiently logistics service chain, logistics service chain are we to your satisfaction.

We follow the standards of quality management system ISO9001 in all procedure, and have strict control from packaging material purchase to transport vehicle scheduling.