Steel Chain Working Load Limit

Grade 30 is a multipurpose economical chain.

Steel chain working load limit.

Distribute the load evenly. The wll of a chain is determined by both the grade and the diameter. How to determine a chain s working load limit. Also known as grade 30 proof coil chain it s used in a.

Working load limit wll of a chain is another designated safety measure. Grades 100 80 70 43 and 30 are specified by the national. Do not load an assembly in excess of working load limits shown. Types of chain grade 30 chain.

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. So grade 80 is really 800 and grade 120 is 1 200. Do not expose assembly to impact rapid lifts or sudden stops. Do not use a chain that appears to be defective worn or damaged.

Chain grades advertised by manufacturers are one tenth of the actual mathematical grades. B the working load limits of tiedowns may be determined by using either the tiedown manufacturer s markings or by using the tables. 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. Do not put an unequal load on one leg of a sling.

Chain is embossed with both the grade and size so you can determine its wll using this chart. Grade is intended to indicate the strength and tolerance of welded steel chains. What is a chain s working load limit. Determining chain working load limits.