Steel Chain Working Load Limit

Do not use a chain that appears to be defective worn or damaged.

Steel chain working load limit.

Types of chain grade 30 chain. Also known as rated capacity the working load limit wll indicates the maximum load that a new and undamaged straight length of chain can potentially handle. B the working load limits of tiedowns may be determined by using either the tiedown manufacturer s markings or by using the tables. Chain grades advertised by manufacturers are one tenth of the actual mathematical grades.

Grade is intended to indicate the strength and tolerance of welded steel chains. Working load limits for steel strapping working load limits for wire rope size wll size wll size wll 45mm 1 3 4in 790kg 1 750lb 31 7 x 74mm 1 1 4 x 0 029in 540kg. So grade 80 is really 800 and grade 120 is 1 200. What is a chain s working load limit.

The wll of a chain is determined by both the grade and the diameter. A the working load limit wll of a tiedown associated connector or attachment mechanism is the lowest working load limit of any of its components including tensioner or the working load limit of the anchor points to which it is attached whichever is less. Determining chain working load limits. Chain size in millimeters inches unmarked chain grade 30 proof coil grade 43 high test grade 70 transport grade 80 alloy grade 100 alloy chain.

Do not load an assembly in excess of working load limits shown. Grade 30 is a multipurpose economical chain. Distribute the load evenly. Also known as grade 30 proof coil chain it s used in a.

Do not expose assembly to impact rapid lifts or sudden stops. Chain is embossed with both the grade and size so you can determine its wll using this chart. Do not tie knots or allow chains to become twisted. How to determine a chain s working load limit.