R3 & R4 Chafe Chain

Hongruntong’s Chafe Chains are engineered to provide maximum abrasion protection and load-bearing strength for critical mooring systems. Designed specifically for harsh offshore environments, our chafe chains are forged from high-grade R3 and R4 mooring steel, ensuring long-lasting performance under extreme mechanical stress.

Key Features

• R3 & R4 Grade Materials: Manufactured using certified R3 and R4 steel, compliant with IACS requirements and tested for high tensile strength and corrosion resistance.

• Enhanced Wear Resistance: Designed to withstand friction and impact from repeated contact with ship hulls, bollards, and fairleads.

• Custom Length & Size: Available in a wide range of link diameters and lengths, tailored to fit your hawser and mooring system configurations.

• Corrosion Protection: Optional hot-dip galvanizing or marine-grade coatings available for extended service life in seawater conditions.

• Compatibility: Works seamlessly with synthetic mooring hawsers, thimbles, and shackles for secure and flexible mooring setups.

Applications

• Ship-to-Ship (STS) Mooring

• Offshore Terminal Mooring

• SPM / CALM Buoy Mooring Systems

• Oil & Gas Offshore Platforms

• LNG and FPSO Operations

Why Choose Hongruntong?

At Hongruntong Marine, we combine over two decades of industry experience with advanced forging and testing capabilities to deliver robust chafe chain solutions. All our chains undergo rigorous quality checks and are certified to meet international mooring standards (ABS, DNV, LR, BV upon request). Whether for offshore oil terminals or critical STS operations, we ensure reliability, performance, and safety at sea.

Technical Requirements

• Material Grade: R3 / R4 (heat-treated mooring chain steel)

• Link Diameter: 26mm – 122mm

• Minimum Breaking Load (MBL): Up to 1200 tons

• Finishes: Black bare, painted, or galvanized

• Standards: ISO 1704, OCIMF Guidelines, IACS UR W22 / W23

Specifications

Detail Photos