Wholesale U Type Larsen Steel Sheet Pile JIS A5528 SY390 Type II/III/IV Manufacturer and Supplier

U Type Larsen Steel Sheet Pile JIS A5528 SY390 Type II/III/IV

Short Description:

JIS A5528 SY390 U Type Larsen Steel Sheet Pile Type II/III/IV – High-strength, durable and water-tight steel sheet pile for construction, foundation support, cofferdam and marine engineering in Southeast Asia.

Standard: JIS A5528

Type: U Type II, III, IIIA, IV, Lassen Sheet Pile

Technique: Hot Rolled

Material Grade: SY390

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	JIS A5528
Grade	SY390
Type	U-Type Larssen Sheet Pile
Process	Hot-Rolled 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 (%)

Element

Composition (wt%)

≤0.22

≤0.55

≤1.60

≤0.040

≤0.35

≤0.30

≤0.10

≤0.05

≤0.10

≤0.05

≥0.015

≤0.012

Steel Sheet Pile Mechanical Properties

Item	Yield Strength	Tensile Strength	Elongation	Bending Test	Charpy Impact Energy
Requirements	≥ 390 MPa	520 – 660 MPa	≥ 18%	180°, no crack	≥ 27 J at 20℃

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

To our customers across the Americas:

We supply hot-dip galvanized steel sheet piles conforming to ASTM A123 standards, with a zinc coating thickness of at least 85μm, providing robust and durable corrosion protection. For demanding marine or underground operations, we also offer an optional 3PE coating to maximize durability. All our surface treatments are environmentally friendly and safe, fully compliant with RoHS standards, and meet sustainability requirements across markets in the Americas.

To our customers across the Southeast Asia:

We employ a hot-dip galvanizing process with a coating thickness of at least 100 microns, combined with a double-layer epoxy coal tar coating. This composite protective process provides strong and long-lasting corrosion resistance, showing no signs of rust after more than 5,000 hours of salt spray testing. This product is specifically designed for reliable operation in the tropical, humid marine environments of 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

We use high-grade structural steel to ensure reliable strength and long service life for engineering projects.

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

Hot Rolling
The heated steel is rolled into precise U‑shaped profiles using professional mills.

Cooling
Natural or water cooling is applied to reach the required mechanical properties.

Straightening & Cutting
Profiles are precisely straightened and cut to standard or custom lengths.

Quality Inspection
Every product is checked for dimensions, mechanical performance and surface quality.

Surface Treatment (Optional)
Extra 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

Popular in civil, marine and foundation engineering:

Support for foundation pits of multi-story buildings, bridges, industrial building
Cofferdams for ports, wharves, water conservancy, and river training
Sea walls, flood control, and coast land reclamation
Surcharge to earth and water for network infrastructure, temporary earth-retaining and shoring for civil works
Particular procedures were developed for excavation support in deep pit, tunnel portals, and marine work

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

Packaging

Bundled securely with metal or plastic strapping
Ends protected with wooden caps or heavy‑duty plastic
Anti‑rust treatment: anti-corrosive oil or waterproof plastic film

Handling & Transportation

Loaded by crane or forklift within safe load limits
Stacked and secured firmly to avoid shifting during transit
Unloaded carefully at job site for direct use

Our efficient logistics service chain can meet your needs, and we have established stable partnerships with shipping companies such as MSK, MSC, and COSCO.

We strictly adhere to the ISO9001 quality management system standards, rigorously controlling every step from packaging material procurement to transportation vehicle arrangement.