Cylinder liners in ships are critical engine components that form the inner wall of the cylinder. They provide a durable surface for piston movement and withstand high temperatures and pressures. These parts ensure efficient combustion and reduce wear in marine engines.

Cylinder Liner Ship Engine Parts Specifications:

Size: Typically ranges from 100mm to 1000mm in diameter, length varies based on engine design.

Grade: Common grades include ASTM A48 Class 30, ASTM A536, or proprietary engine manufacturer grades.

Viscosity: Not applicable directly to liner material, but lubricating oil viscosity (SAE 15W-40 or similar) is critical for operation.

Buoyancy: Negligible; liners are dense and non-buoyant due to metal construction.

Material: Typically made of cast iron (gray or ductile), alloyed cast iron, or steel with chrome plating for wear resistance.

Hardness: 180-250 HB for cast iron, up to 60 HRC for chrome-plated surfaces.

Surface Finish: Precision honed to 0.5-2.0 µm Ra for optimal piston ring sealing.

Thermal Conductivity: ~50 W/m·K for cast iron, aiding heat dissipation.

Pressure Resistance: Designed to withstand peak combustion pressures exceeding 200 bar.

Corrosion Resistance: Enhanced by coatings or alloying elements (e.g., chromium, nickel).