Description

Technical Parameters

Product Overview | Experience Unmatched Strength for Marine Engineering

Trusted by shipyards worldwide for hull construction, offshore rigs, and vessel retrofitting.

Navigating the demands of modern shipbuilding requires steel that offers high tensile strength, superior weldability, and exceptional low-temperature toughness.

Our ABS AH36 Shipbuilding Steel Plate is a high-strength, hot-rolled marine grade steel specifically engineered for the construction of ocean-going vessels, offshore drilling rigs, and heavy marine equipment. As a full-line supplier of AH36, DH36, and EH36 plates, we ensure that every sheet meets the rigorous standards of the American Bureau of Shipping (ABS) and other international classification societies.

Why choose our AH36? With a minimum yield strength of 355 MPa, our AH36 steel plate provides the structural integrity required for hulls exposed to harsh sea environments while maintaining the ductility needed for complex fabrication.

Quality Assurance | Fully Certified & Traceable

One-stop steel procurement

Certifications: We supply ABS AH36, CCS AH36, LR AH36, DNV-GL AH36, and BV AH36.

Traceability: Each plate is stamped with grade, heat number, and dimensions.

Inspection: Third-party inspections (SGS, BV) are welcome at our loading port.

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Key Specifications & Tolerances

Parameter	Details / Range
Standard	ASTM A131 / ABS (American Bureau of Shipping), CCS, LR, BV, DNV
Grade	AH36, DH36, EH36, AH32
Thickness	4mm – 260mm (Custom thicknesses available: 8mm, 10mm, 15mm, 20mm, 25mm, 30mm, 40mm, 50mm)
Width	1,500mm – 4,500mm
Length	6,000mm – 18,000mm (or as per customer requirement)
Technique	Hot Rolled / Normalized / TMCP (Thermo Mechanical Control Process)
Surface	Bare, Oil Coated, or Blasted & Primed (Shop Primer)
Delivery Condition	As-rolled, Normalized, Quenched + Tempered

Mechanical Properties & Chemical Composition | Built for High Stress

Element	C	Si	Mn	P	S	Ni	Cr	Mo	Nb
Max %	≤0.18	≤0.50	0.90–1.60	≤0.035	≤0.035	≤0.40	≤0.20	≤0.08	0.02–0.05

Mechanical Requirements

Property	Value (AH36 Standard)
Yield Strength (Reh)	≥ 355 MPa (51,000 psi)
Tensile Strength (Rm)	490 – 620 MPa (71 - 90 ksi)
Elongation	≥ 21% (in 5x diameter)
Impact Test (Charpy V-notch)	34J min @ 0°C (Longitudinal) – ensures toughness in cold waters

Applications | Where is AH36 Steel Used?

ship-hull-construction-keel-bilge-strakes-marine-steel

Ship Hulls

Main hull construction, keels, and bilge strakes.

Offshore Platforms

Jack-up rigs, semi-submersibles, and FPSO topside modules.

offshore-platform-jack-up-rig-semi-submersible-fpso-steel-structure

Vessel Components

Cargo holds, hatch covers, bulk carriers, and tanker decks.

Repair & Retrofit

Replacing worn-out sections of existing vessels.

why choose us?

Stock Availability: We maintain 5,000+ tons of AH36 ship plate in standard sizes (6m, 9m, 12m) ready for immediate dispatch.

Custom Cutting: We offer profile cutting, beveling, and services to save you fabrication time.

Fast Logistics: Efficient shipping via break bulk or container to major ports worldwide (Rotterdam, Houston, Singapore, Dubai).

Competitive Pricing: Direct mill cooperation means no middlemen markups.

5,000+ tons in stock | 7–15 day fast delivery | Full classification certification

Get the quotation within 24 hours

one-stop solution

professional team

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User Evaluation

We needed 25mm AH36 plates with Z35 property for a jack-up rig. The mill test certificates accompanied each bundle, and the third-party inspection (DNV) went smoothly. Delivery to Bergen was ahead of schedule.

Mr. Chen Wei

Singapore · Large Shipbuilding and Repairing Group

We compared their 10mm and 15mm AH36 plates with local EU suppliers – same mechanical properties (355 MPa yield, 0°C impact test passed), but landed cost saved us nearly 18% per ton. Will order again.

Ms. Nguyen Thi Hong

Haiphong · Shipbuilding Group of Vietnam

Ordered 30 plates with beveled edges per our DXFs. No rework on assembly; the tolerances were consistent. Good communication on shipping documents too.

Mr. Rajesh Kumar

Kochi, India · Ship Repair Yard

FAQ

01.What is the difference between AH36 and DH36 shipbuilding steel?

AH36 and DH36 have the same minimum yield strength (355 MPa) and tensile range. The key difference is Charpy V-notch impact temperature:

AH36 tested at 0°C (suitable for general hull construction).

DH36 tested at -20°C (recommended for colder sea routes or exposed decks).
We supply both grades with full classification society certification (ABS, LR, DNV, CCS, BV).

02.Can you supply small quantities (e.g., 5–10 plates) for repair jobs?

Yes. We accept small orders (minimum order quantity varies by thickness, typically 5–8 tons). For urgent repair projects, contact our sales team – we often split stock plates from ready stock (6m/9m/12m lengths) to meet your requirements.

03.How do you ensure the steel is genuinely ABS certified?

Every ABS AH36 plate comes with a Mill Test Certificate (MTC) en-covering 3.1 or 3.2 signed by the producing mill and countersigned by ABS surveyor upon request. You can verify the heat number online via ABS's vessel database. We also support third-party inspections (SGS, BV, Intertek) at our warehouse.

04.What is your typical lead time for AH36 steel plate?

Stock sizes (4–40mm, standard 2.5m×12m): 7–15 days after deposit.

Custom thickness/width (e.g., 50mm+): 20–35 days (mill rolling + normalization).
Sea freight time depends on your port – we provide CIF quotes for Rotterdam, Houston, Singapore, Dubai, and major Asian hubs.

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