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.

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.

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.







