For demanding lifting and rigging applications, the choice of equipment is paramount to safety and efficiency. The G80 Alloy Steel Lifting Chain represents the industry benchmark, engineered to deliver exceptional strength and durability under extreme loads. Distinct from standard chains, this specialized Alloy Steel Lifting Chain is manufactured from heat-treated alloy steel, achieving a Grade 80 (G80) classification. This designation signifies a minimum tensile strength of 800 N/mm², offering a superior strength-to-weight ratio and enhanced resistance to wear, impact, and deformation. Widely trusted for overhead lifting, towing, and load securement, a reliable G80 Lifting Chain provides the critical performance required in construction, manufacturing, marine, and mining operations, ensuring both operator safety and operational reliability.
The Heavy Duty G80 Alloy Steel Lifting Chain is subjected to rigorous manufacturing and testing protocols to guarantee consistent quality. Each chain link undergoes a controlled heat-treatment process, which optimizes the internal metallurgical structure for maximum toughness. Following this, the chain is proof-tested to twice its working load limit (WLL) and undergoes thorough inspection for any surface defects or dimensional inconsistencies. This meticulous process ensures that every Heavy Duty G80 Alloy Steel Lifting Chain meets or exceeds international standards such as ASME B30.9 and ISO 3075. The chain's design also facilitates compatibility with a wide range of fittings, including hooks, shackles, and master links, allowing for the creation of customized sling assemblies tailored to specific lifting geometries and requirements.
| Chain Size (inches) | Diameter (mm) | Working Load Limit (WLL) in lbs | Working Load Limit (WLL) in tons (2000 lbs) |
|---|---|---|---|
| 1/4" | 7 mm | 3,250 lbs | 1.63 tons |
| 5/16" | 8 mm | 4,600 lbs | 2.30 tons |
| 3/8" | 10 mm | 6,500 lbs | 3.25 tons |
| 1/2" | 13 mm | 11,300 lbs | 5.65 tons |
| 5/8" | 16 mm | 17,200 lbs | 8.60 tons |
| 3/4" | 20 mm | 25,000 lbs | 12.50 tons |
| 7/8" | 22 mm | 32,000 lbs | 16.00 tons |
| 1" | 26 mm | 41,000 lbs | 20.50 tons |
Proper inspection, maintenance, and use are critical to maintaining the safety and performance of any lifting chain. Before each use, visually inspect the Heavy Duty G80 Alloy Steel Lifting Chain for signs of wear, nicks, gouges, stretching, or corrosion. Always adhere to the stated Working Load Limit and avoid shock loading. Use appropriate wear pads or edge protection when the chain contacts sharp edges. Store chains in a clean, dry location when not in use to prevent environmental damage.