Towing chain

steelalloyhardened steel

Overview

A deck lashing chain is a high-strength securing chain designed for fastening cargo and equipment on ship decks and maritime platforms. Manufactured from heat-treated alloy steel and available with corrosion-resistant surface finishes, it is engineered for marine environments and heavy-duty deck lashing operations.

Applications

• Deck lashings for Ro-Ro and general cargo
• Hoist chains and lifting assemblies
• Chain slings and crane systems
• Offshore transport and rigging
• Port logistics and cargo securing

Material
Heat-treated alloy steel.

Chain Grade
Grade 80 (G80).

Design Factor
Minimum 4:1.

Identification
G80 marking, manufacturer identification; batch traceability available.

Product Features

• Manufacture: Quenched and tempered alloy steel meeting Grade 80 lifting chain requirements.
• Surface finishes: Self-color, black paint, powder coat, electro-galvanized, hot-dip galvanized or customer-specified coatings.
• Mechanical performance: Minimum breaking load ≥ 4 × WLL (Working Load Limit).
• Marking: Links marked with G80, manufacturer ID, or custom markings on request.
• Use cases: Suitable for chain slings, lifting assemblies, hoists, rigging equipment and heavy cargo securing.
• Customization: Non-standard dimensions, lengths, markings and assemblies manufactured to customer specifications.

Parameter
Available in multiple diameters and link configurations to match vessel securing requirements, cargo weight and deck lashing systems. Long-link designs commonly used for Ro-Ro vessels, offshore transport and general cargo restraint.

Typical specifications (table)
Size | Length (mm) | Width (mm) | Weight (kg/m) | Working Load Limit | Test Load | Breaking Load Min
9 mm | 56 | 15 | 1.45 | 50 kN | 63 kN | 100 kN
11 mm | 65 | 18 | 2.20 | 75 kN | 94 kN | 150 kN
13 mm | 80 | 23 | 3.00 | 100 kN | 125 kN | 200 kN

Standards

• Manufacturing: Produced to marine cargo securing requirements using high-strength steel and corrosion-resistant treatments.
• Testing: Batch dimensional inspection, proof load testing, breaking force testing, weld inspection and surface quality checks.
• Application standards: Suitable for Ro-Ro vessels, offshore transport, heavy cargo securing and port operations.
• Maintenance: Regular inspection for corrosion, deformation, weld defects, elongation, coating deterioration and excessive wear before use.

Technical characteristics / specifications

• Material: Heat-treated alloy steel
• Chain grade: Grade 80 (G80)
• Design factor: 4:1 minimum
• Identification: G80 marking, manufacturer mark, batch traceability available
• Surface finishes: Self-color, black painted, powder coated, electro-galvanized, hot-dip galvanized or custom finishes
• Mechanical performance: Minimum breaking force ≥ 4 × WLL
• Typical sizes and capacities: 9 mm (WLL 50 kN; Breaking load min 100 kN), 11 mm (WLL 75 kN; Breaking load min 150 kN), 13 mm (WLL 100 kN; Breaking load min 200 kN)