The cylinder head in a ship's engine seals the top of the cylinder, forming the combustion chamber. It houses valves, fuel injectors, and sometimes spark plugs for efficient engine operation. It also aids in heat dissipation and maintains compression within the cylinder.

The cylinder head in ship engines typically has the following key specifications and technical properties:

Size: Varies based on engine type (e.g., 300mm to 1000mm in diameter).

Grade: High-grade cast iron or aluminum alloy (e.g., ASTM A48 Class 30 or SAE 356).

Viscosity: Not directly applicable (material property dependent on lubrication).

Buoyancy: Not applicable (fixed component, not designed for buoyancy).

Material: Cast iron, ductile iron, or aluminum alloy for weight reduction.

Pressure Rating: 15-30 MPa (varies with engine design).

Heat Resistance: Up to 300°C (572°F) for diesel engines.

Surface Finish: Machined to 1.6-3.2 μm Ra for sealing.

Weight: 50-500 kg (depends on engine size).

Corrosion Resistance: Coated or treated for marine environments.