G80 High Tensile Chain

G80 high tensile chain is a common grade 80 lifting chain. Its core characteristics include a minimum breaking strength of ≥800 MPa and a 4:1 safety factor. It is widely used in applications such as hoisting, lifting, and pulling.

🔩 Core Performance & Parameters

· Key Parameters: Minimum breaking strength ≥800 MPa; 4:1 safety factor (proof load is 2.5 times the working load limit); Minimum breaking elongation ≥17%.
· Material & Process: Manufactured from high-quality alloy steel (such as 20Mn2, 25MnV, or chromium-nickel-molybdenum steel), and undergoes heat treatment (such as quenching) to enhance strength and toughness.
· Standards: Complies with international and domestic standards such as EN818-2 and JB/T8108.

📊 Common Specifications & Load Table

The working load limit (WLL) and minimum breaking force vary depending on the chain diameter. Below is a summary of key parameters by diameter to help you quickly understand its lifting capacity:

Specification (d×t)          Working Load Limit (tons) Min.              Breaking Force (kN) Approx.                Weight (kg/m)
6×18 mm                            1.1                                                         45.2                                               0.79
8×24 mm                            2.0                                                         80.4                                                1.38
10×30 mm                          3.2                                                          125                                                 2.2
13×39 mm                           5.0                                                        214                                                  3.8
16×48 mm                          8.0                                                         320                                                  5.63
20×60 mm                          12.5                                                       500                                                   8.6
22×66 mm                          15.3                                                      610                                                   10.2
26×78 mm                          21.3                                                      850                                                   14.87
32×96 mm                          32.2                                                     1286                                                  22.29


💡 Applications & Selection Precautions

· Main Applications: Suitable for lifting operations, equipment pulling, and cargo securing in industries such as construction, manufacturing, logistics, ports, and offshore operations.
· Surface Finishes: Common surface treatments include painted, blackened, galvanized, polished, etc., to suit different environmental requirements.

· Safety Red Line: Overloading is strictly prohibited! The rated load of the chain is based on vertical lifting. Changes in lifting angle will reduce the actual safe working load. Always inspect the chain for cracks, wear, or deformation before use.