Grade 80 lifting chain is a high-strength alloy steel chain commonly used in various lifting and rigging applications. It is designed to provide superior strength, durability, and resistance to wear and fatigue compared to lower grade chains.
Grade 80 refers to the minimum tensile strength of the chain, which is 800 N/mm² or 80 kgf/mm². This high-strength chain is capable of handling heavy loads and is often used in demanding lifting operations.
Some key features and characteristics of grade 80 lifting chain include:
- Material: Grade 80 lifting chain is typically made from alloy steel that undergoes heat treatment and other processes to achieve the desired strength and durability.
- Links: The chain consists of individual links interconnected to form a continuous chain. The links may have various shapes, such as round or oval, depending on the specific design and application requirements.
- Markings: Grade 80 lifting chain is usually marked with appropriate identification, such as the manufacturer's name or logo, the chain's grade (80), and the relevant standards or certifications it complies with.
- Working Load Limit (WLL): The WLL specifies the maximum weight or load that the chain can safely handle under normal working conditions. It is crucial to use the chain within its rated WLL to ensure safety.
When using grade 80 lifting chain, it is essential to follow the manufacturer's guidelines and industry-specific regulations for proper handling, inspection, and maintenance. Regular inspections should be conducted to check for signs of wear, deformation, or damage that may compromise the chain's integrity.
It's worth noting that the use of lifting chains and related equipment should be performed by trained professionals who are knowledgeable about the specific application and safety requirements.