Grade 70 Transport
Also referred to as Transport Chain, Grade 7, System 7 or Gold Chain, Binder Chain or Boomer Chain
Grade 70 High Test IS NOT RATED for OVERHEAD LIFTING by OSHA.
Welded Link Chain
Grade 70 Transport Markings
Grade 70 Transport can be marked 7, 70, or simply have anything with a 7 embossed on the link. There may be a letter before the number (like D7 or D70) which is usually a manufacturer’s ID code.
Grade 70 Transport Chain Common Uses
Welded Link Chain
Grade 70 Transport Chain is colored Gold. Technically, the finish is referred to as Yellow Dichromate or Yellow Zinc.
The Gold finish is helpful to law enforcement. When examining trucks/trailers for safety, the gold color helps them see that the user is using Grade 70.
Grade 70 is the only chain approved for use by the DOT on interstate highways.
Grade 70 Transport Common Uses
Grade 70 Chain is used for 3 main purposes:
Cargo Control/Tie Down
Trailer Safety
Pulling/Towing
Used with GOLD-TIP Load Binders for Cargo Control use on DOT controlled (Federal Interstate or State) roadways
In Trailer Safety Chain for heavier travel trailers, utility trailers, horse trailers, etc. that are chained to the vehicle for safety
Pulling objects which are stuck
Bulk Chain vs. Binder Chain
Grade 70 Transport Chain is typically provided in 2 ways:
In Bulk
In the form of a “Binder Chain” or “Boomer Chain”.
A “Binder Chain” is a chain that has been cut to a standard length (usually 10’, 12’ 16’, 20’ or 25’) and generally has Grade 70 Grab Hooks on each end. The lowest chain grade hooks allowed for use with Grade 70 chain are Grade 70 Hooks. Grade 43 High Test Hooks are not compliant.
Bulk with no hooks on the end, shipped in a drum or pail
Binder Chain cut to length with Grade 70 Clevis Grab Hooks