The terms G80 chain and lifting chain often appear together in rigging conversations because they define both grade and purpose. A lifting chain refers to any chain rated and certified for overhead lifting, while G80 identifies a specific grade of quenched and tempered alloy steel chain. Understanding how these two concepts align helps operators choose the right chain for mining, construction, marine, and industrial projects.

What Defines a G80 Chain?

A G80 chain is manufactured from alloy steel that has undergone heat treatment and proof testing. Standards such as EN 818-2 and NACM specify chemical composition, dimensions, and performance requirements. G80 provides a working load limit (WLL) about 25% higher than Grade 70 transport chains, making it the industry benchmark for overhead lifting.

Key Properties of G80 Chain:

Tensile strength designed for demanding lifts

Toughness at low temperatures (tested to –40 °C)

Traceability with stamped markings and test certificates

Compatibility with matching hooks, master links, and connecting links

Lifting Chain in Practice

A lifting chain refers to chains that are tested, rated, and certified for hoisting. It includes G80, G100, and stainless G80 chains, depending on the application. Unlike decorative or transport chains, lifting chains follow strict inspection cycles, load charts, and environmental rules.

Applications of Lifting Chains:

Mining (DIN 22252 scraper conveyor chains)

Construction and infrastructure

Shipyards and offshore rigs

Factories and machinery installation

Comparing G80 Chain and Other Lifting Chains

Safety Guidelines for Using G80 and Lifting Chains

1. Check WLL charts: multiply load by sling angle factor (1.4 at 45°, 2.1 at 60° for four-leg slings).

2. Match components: hooks, master links, and connecting links must be same grade.

3. Protect against edges: use corner guards when R < 2d.

4. Inspect frequently: remove chains with 10% wear, 3% elongation, or cracks.

5. Record inspections: maintain logbooks with stamped codes and test data.

Conclusion

By combining the strength of G80 chain with the certification of a lifting chain, operators gain a reliable rigging system that meets international safety standards while adapting to diverse industries. Choose certified G80 and lifting chains from TOPONE CHAIN to ensure every lift runs with confidence.