4,000 M² RINA-Classed Clad Steel Plate For Shipbuilding Projects

Sep 22, 2026 Leave a message

A recent shipbuilding project has created a requirement for approximately 4,000 m² of RINA-classed clad steel plate, with a total thickness of 11 mm consisting of an 8 mm carbon steel base plate and a 3 mm 316L stainless steel cladding layer.

 

The requested specification is:

Item Requirement
Product Clad Steel Plate
Application Shipbuilding / Newbuilding
Classification RINA
Total Thickness 11 mm
Carbon Steel Base 8 mm
Cladding Material Stainless Steel 316L
Cladding Thickness 3 mm
Required Quantity Approx. 4,000 m²
Customer Requirement Offer and Delivery Time

 

8mm Carbon Steel + 3mm 316L Clad Plate

Clad steel plate combines a carbon steel or low-alloy steel base with a stainless steel cladding layer. This structure allows the plate to combine the mechanical strength and cost advantages of the base material with the corrosion resistance of stainless steel.

For this project, the requested construction is:

 

8 mm Carbon Steel + 3 mm 316L Stainless Steel = 11 mm Total Thickness

316L stainless steel is commonly selected where improved corrosion resistance is required, particularly in marine, chemical, process and other demanding environments.

 

RINA Classification for Marine Projects

For shipbuilding and marine engineering projects, material selection may need to comply with the requirements of the applicable classification society.

For RINA-classed projects, the material, manufacturing process, testing and documentation need to be considered according to the applicable project and classification requirements.

For clad steel plate orders, technical requirements may include:

Material grade and standard

Base plate and cladding material

Cladding thickness and bonding quality

Plate dimensions and tolerances

Mechanical properties

Chemical composition

Ultrasonic testing

Clad interface inspection

Surface quality

Heat treatment requirements

Classification certificates and inspection documents

Third-party inspection, when required

The exact requirements should be confirmed against the project specification and applicable RINA requirements before production.

 

Suitable for Shipbuilding and Engineering Projects

Clad steel plates can be considered for applications where both structural strength and corrosion resistance are required.

Potential applications include:

Shipbuilding

Marine engineering

Offshore equipment

Chemical processing equipment

Pressure vessels

Storage tanks

Process equipment

Other corrosion-resistant engineering structures

For large-volume projects, material selection should be evaluated together with plate dimensions, fabrication requirements, welding procedures, inspection requirements and classification documentation.

 

Large-Volume Clad Plate Supply

A requirement of approximately 4,000 m² represents a project-scale order rather than a standard stock purchase.

For similar projects, we can discuss the following requirements with engineering and procurement teams:

Clad steel plate specification

Carbon steel grade

Stainless steel cladding grade

Plate thickness

Plate size

Required quantity

Applicable standard

RINA or other classification requirements

Inspection and testing

Required delivery schedule

Packing and transportation

 

Cladding Plate Successful Case

Due to the needs of Guangxi Dato Gorge project for Hydraulic Engineering and Clipper River Hydraulic Engineering developed hot rolled special thick cladding stainless steel composite plate (Q355B + 2205 21mm + 14mm), composite ratio of 1:1.5, breaking through the traditional composite technology of 1:3 minimum ratio.

Cladding/Clad Sheet Plate 5mm+1mm Composite Steel Q235jr/S355jr + SS304/316L

 

Stainless steel composite plate 57+7 mm for nuclear power plant project annotation box, our company successfully rolled 64mm (SA-533Gr.BCl.1+SA-240304L 57mm + 7mm) thick stainless steel composite plate.the case of domestic an injection box with hot rolling process to do stainless steel composite plate. The indicators have reached international standards.

Cladding/Clad Sheet Plate 5mm+1mm Composite Steel Q235jr/S355jr + SS304/316L

If your project requires 316L clad steel plate, marine-grade clad plate or RINA-classed clad steel plate, please send us the required specification, dimensions, quantity and delivery schedule.

 

Our technical and sales team can review the project requirements and provide a quotation and estimated delivery time.