Grade 70 Binder Chain (USA)

All of our Laclede Grade 70 Binder/Tow Chains are Made in the USA. To help identify the grade and manufacturer all of our Grade 70 Chain is embossed with”L7”. The L is the chain manufacturer Laclede. The 7 identifies this as a Grade 70 Chain. Grade 70 chain is typically finished with a Gold Chromate or Yellow Zinc. You will also find a trace code embossed on the chain. This trace code provides Information about the manufacturing history of the chain as well as the origin of the steel. The code is a combination of letters and/or numbers located on Grade 100, Grade 80, and Grade 70 chain. These grades are all heat treated. (A process that involves heating chain to extreme temperatures to harden the material and improve the metallurgical and tensile properties of the chain).

You will soon be seeing these tags on our most popular lengths of 5/16, 3/8, and 1/2 G70 assemblies. These new tags state the size, grade, working load limit, made in the U.S.A., and a not for overhead lifting warning. This is NOT a requirement from the D.O.T. Laclede listened to your feedback and developed a tag so that inspectors could identify the grade and workload by quickly reading the information on the UV resistant tag. Our chain will still be marked L7 and have the gold chromate finish. This tag will be yet another identifier for Laclede's Grade 70 domestic chain

Working Load Limit (WLL): (rated capacity) Is the maximum working load that should be applied In direct tension to an undamaged straight length of chain.

Proof Test: (manufacturing test force) Is a term designating the minimum tensile force which has been applied to a chain under a constantly increasing force In direct tension during the manufacturing process. These loads are manufacturing integrity tests and shall not be used as criteria for service or design purpose.

Minimum Breaking Force: The minimum force at which the chain during manufacture has been found by testing to break when a constantly increasing force is applied in direct tension. Breaking force values are not guarantees that all chain segments will endure these loads. This test is a manufacturer's attribute acceptance test and SHALL NOT be used as criteria for service and design purpose.

Alternatives:
1. The trucking company can hold your order at the nearest terminal.
There may be additional storage fees acumulated if orders are not picked up within 2-3 days.
2. There is a $60 surcharge for appointments/call ahead deliveries.
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