Size: Typically ranges from 300mm to 600mm in length, depending on hatch cover design.
Grade: Marine-grade steel (ASTM A131, AH36/DH36/EH36) or stainless steel (AISI 316L).
Viscosity: Not applicable (mechanical component).
Buoyancy: Not applicable (non-floating component).
Material: High-strength steel, stainless steel, or aluminum alloy for corrosion resistance.
Load Capacity: Designed to withstand 10-20 tons of vertical/horizontal force.
Surface Treatment: Hot-dip galvanized or epoxy-coated for durability.
Operating Temperature Range: -30°C to +80°C.
Corrosion Resistance: Meets ISO 9227 salt spray test standards (500+ hours).
Compliance: IMO SOLAS, MSC.1/Circ.1370, and class society approvals (ABS, DNV, LR, etc.).