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ShipBuilding Plates

Name: ShipBuilding Plates
Brand: Ever Nickel
Price: 99.99 USD
Availability: InStock
Rating: 4.8 (50 reviews)

Plate Type: Shipbuilding Plates

Steel Grade: AH36, DH36, EH36,AH40, DH40, EH40 etc.

Width: 1220mm 1250mm 1500mm Or As Customer Required

Thickness: 2.0mm-200mm

Length: 2440mm 2500mm 3000mm Or As Required

Standard: Shipbuilding Grade AH36, DH36, EH36,AH40, DH40, EH40 High-Strength Steel,TMCP Steel Plate

Surface: Mild Steel Plain Finish, Hot-Dip Galvanized, Color Coated, Etc.

Processing Service: Bending, Welding, Decoiling, Cutting, Punching

Application: Hull Construction SteelOffshore Platform Structural Steel,Deck and Bulkhead Plates,FPSO & LNG Carrier Steel,Ice-Class Vessel Steel Plates,Chemical Tanker Stainless Steel Plates

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Description
Specification
Standard
Process
Package & marking

High-Performance Shipbuilding Steel Plate–Certified Marine Grade Solutions

Our Shipbuilding Steel Plates are engineered to withstand the relentless corrosive force of seawater and the immense structural stress of ocean-going operations. Certified by the world’s leading classification societies, these plates offer the perfect balance of high yield strength, excellent cold-forming properties, and superior weldability. From commercial cargo vessels to offshore support units, our steel provides the reliable foundation required for long-term safety at sea.

Common Standards & Steel Grades

We supply shipbuilding steel strictly according to the unified requirements of IACS (International Association of Classification Societies).

Ordinary Strength Grades:

Grades: A, B, D, E

Application: General hull structures and deck plating.

Higher Strength Grades (High-Tensile):

Grades: AH32, DH32, EH32, FH32 (Yield Strength 315 MPa)

Grades: AH36, DH36, EH36, FH36 (Yield Strength 355 MPa)

Grades: AH40, DH40, EH40 (Yield Strength 390 MPa)

Offshore Structural Grades:

ASTM A131 (Standard for Shipbuilding)

API 2H / 2W (For offshore platforms)

Dimensional Range & Technical Specifications

To reduce welding seams and increase structural integrity, we offer a wide range of sizes, including super-wide and heavy-thickness plates:

Feature	Specification Range
Thickness (WT)	5mm – 150mm (Up to 300mm for special orders)
Width	1,500mm – 4,000mm (Standard: 2,000mm, 2,500mm)
Length	6,000mm – 18,000mm (Custom lengths available)
Heat Treatment	AR (As Rolled), N (Normalized), TMCP (Thermo-Mechanical Control Process)
Surface Treatment	Shot-blasting (Sa 2.5) and Shop Priming (Gray/Red)

Core Application Fields

Shipbuilding plates are the primary material for constructing the "backbone" of the maritime industry:

Hull Construction: Bottom plates, side shells, and bulkheads for Bulk Carriers, Tankers, and Container Ships.

Offshore Structures: Jack-up rigs, semi-submersible platforms, and wind turbine installation vessels.

Marine Infrastructure: Floating docks, bridge pontoons, and harbor structures.

Specialized Vessels: LNG/LPG carriers, icebreakers (EH/FH grades), and luxury cruise liners.

Internal Components: Engine room bulkheads and heavy-duty deck machinery supports.

Why Source Our Marine Plates?

Multi-Society Certification: Available with ABS, DNV, LR, BV, CCS, RINA, KR, NK, and GL stamps.

TMCP Technology: Our plates utilize Thermo-Mechanical Control Processes to ensure a low Carbon Equivalent (Ceq), making them exceptionally easy to weld in shipyard conditions.

Z-Direction Testing: Optional Z15, Z25, and Z35 testing to ensure strength through the thickness of the plate, preventing lamellar tearing.

Arctic Ready: FH grades are impact-tested at -60°C, ensuring reliability in the coldest shipping routes.

API 5L Steel Grade Chemical Composition Comparison Table

Grade	C (max)	Si (max)	Mn (max)	P (max)	S (max)	V+Nb+Ti (max)	CEV (max)
Grade B	0.22	0.45	1.2	0.025	0.015	-	0.43
X42	0.22	0.45	1.3	0.025	0.015	0.15	0.43
X46	0.22	0.45	1.4	0.025	0.015	0.15	0.43
X52	0.22	0.45	1.5	0.025	0.015	0.15	0.43
X56	0.22	0.45	1.6	0.025	0.015	0.15	0.43
X60	0.12	0.45	1.6	0.025	0.015	0.15	0.43
X65	0.12	0.45	1.6	0.025	0.015	0.15	0.43
X70	0.12	0.45	1.7	0.025	0.015	0.15	0.45
X80	0.12	0.45	1.85	0.025	0.015	0.15	0.48

Steel grade and size range

Application Field	Standard	Steel Grade	Thickness (mm)	Width (mm)	Length (mm)	Delivery Condition
Shipbuilding & Offshore	Classification Societies (CCS, ABS, DNV, LR, etc.)	Normal Strength: Grade A, B, D, E High Strength: AH32, DH32, EH32, AH36, DH36, EH36, EH40	6 – 100	1500 – 4100	6000 – 18000	AR, CR, NR, TMCP, N
Bridge Steel	ASTM / EN 10025	A709 Grade 36/50/50W, S355J0W, S355K2W	8 – 120	2000 – 4500	6000 – 15000	TMCP, N, QT
Bridge Steel	GB/T 714 (Chinese Std)	Q345qC/D/E, Q370qC/D/E, Q420qD/E	8 – 100	2000 – 4000	6000 – 15000	TMCP, N
Pipeline Steel	API Spec 5L	PSL1 & PSL2: Grade B, X42, X46, X52, X56, X60, X65, X70, X80	8 – 40	2000 – 4500	10000 – 12500	TMCP
Pressure Vessel & Boiler	ASME / ASTM A516	SA516 Gr.60/65/70, SA537 Cl.1/2	6 – 150	1500 – 4000	6000 – 12000	N, QT
Pressure Vessel & Boiler	EN 10028	P265GH, P295GH, P355GH, P355NH/NL1	6 – 150	1500 – 4000	6000 – 12000	N, QT
Structural Steel	ASTM / EN 10025	A36, S235JR, S275JR, S355JR/J0/J2	6 – 200	1500 – 4500	6000 – 18000	AR, CR, N
Structural Steel	GB/T 1591	Q235B, Q355B/C/D/E, Q420D	6 – 200	1500 – 4500	6000 – 18000	AR, CR, TMCP
Wind Power Steel	EN 10025 / Custom	S355JR, S355J2+N, S355NL	10 – 120	2000 – 4500	6000 – 15000	N, TMCP

Carbon Steel Plate Production Process

Package and marking

According to customer's requirements, more than two steel plates can be bundled as following.

1. Two or more steel plates are bare and bound, and the unit plate are not bound.
2. Horizontal binding not less than four,the edge can be protected angle.
3. The straps at both ends are fixed at 200~500 mm from the end of the plate.

Marking

1. The marking is eye-catching, firm,clear and standard,and does not fade.The marking information Includes Surface painting, side painting (side label) and die stamping.
2. Surface painting contains the following information: Forever steel company logo, steel grade,standard,plate number, plate dimensions, heat number, special painting (CE certification, vessel certification, API certification, etc.), special requirements of the customer.
3. Side painting (side label) paste flat, firm, parallel to the direction of the steel plate rolling, information includes steel grade, plate number, plate dimensions, special requirements of the customer.
4. Die stamping: suitable for shipbuilding plate, CE certification plate, API certification plate, vessel plate and steel plate required by customer, information includes: steel grade, plate number, special information (ship certification, CE certification and API certification, etc.), special requirements of the customer.