Grade 70 Chain Hex Free

Electronically welded transport chain
Finish is yellow Di Chromate (Hex Free)
Meets or exceeds all NACM & ASTM standards
High strength to weight ratio
NOT to be used for overhead lifting
NEVER exceed published working load limit



Grade 70 chain was specifically designed for the transportation industry. Grade 70 Chain typically has a 20% higher working load limit than High Test Chain or Grade 43 Chain. G70 chains are also referred to as Transport Chain, System 7, or Spectrum 7. Grade 70 Chain is NOT approved for overhead lifting.

Grade 70 is a high quality, high strength heat treated chain that is becoming the standard for load securement. Grade 70 or Transport chain offers greater hardness and ultimate durability. Transport chain is primarily used and tow and binder chain in agriculture, construction, industrial, trucking and forestry.

All of our Grade 70 Chain is 100 percent Proof Tested. Certs available free of charge.

Please request at the time of order placement.


Grade of Chain: NACM (National Association of Chain Manufacturers & ASTM (American Society for Test Materials) classify chains in various grades. The higher the grade, the higher the working load limit for the same size of 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.

Overhead Lifting: The process of lifting that would elevate a freely suspended load to such a position that dropping a load would present a possibility of bodily injury or Property damage.

Chain Size Inch Chain Size MM Working Load Limit (lbs) Weight Per Foot (lbs) MATERIAL DIAMETER
Inside Length Inch INSIDE WIDTH
1/4″ 7 3,150 0.59 0.267″ 1.24″ .46″
5/16″ 8 4,700 0.93 0.319″ 1.15″ .49″
3/8″ 10 6,600 1.31 0.378″ 1.30″ .60″
7/16″ 11.5 8,760 2.09 0.458″ 1.37″ .67″
1/2″ 13 11,300 2.40 0.496″ 1.56″ .81″
5/8″ 16 15,800 3.41 0.608″ 1.93″ .92″


Standard: Grade 70 Chain Hex Free

MOQ: 100 Meters

Package: Carton + Steel Pallet


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