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3 8 Chain Weight Rating
3 8 Chain Weight Rating. 8.1.5 grade 80 chain shall be embossed at least with 8, 80, or 800. If necessary, clean the sling before inspection.

8.1.4 grade 70 chain shall be embossed at least with 7, 70 or 700. 8.1.5 grade 80 chain shall be embossed at least with 8, 80, or 800. 3/8 nominal diameter, grade 30 proof coil chain.
A Vital Core Component Of Any Chain Sling.
The wll is computed by. One of the safety measures implemented was to place chain in grades based on the ultimate breaking strength of that chain. 3/8 inch (10mm) inside link dimensions:
Crosby® Spectrum 8® Alloy Chain Crosby® Spectrum 8® Alloy Chain > Hooks.
Cut to order trade size: Though stronger than g30, these tow chain ratings are still not recommended for overhead lifting jobs and have a working load limit of 2,600 to 13,000 lbs. Our headquarters are located in waukegan, illinois.
For Chain Trade Size :
A chain’s wll is the maximum tension that can be placed on an undamaged or brand new chain. 3/8 nominal diameter, grade 30 proof coil chain. Working load limit exceeds those of ordinary low carbon or general utility chain.
See The Roller Chain Sizes Chart For All Roller Chain Sizes!
Style b shown in two leg configuration. 8.1.5 grade 80 chain shall be embossed at least with 8, 80, or 800. 8.1.6 grade 100 chain shall be embossed at least with.
Here's The Official Specs With Both Tensile Numbers:
All our grade 70 chains are embossed with the proper markings to meet nacm standards. This number is what we see today g30, g43,. With different weight and tensile strength.
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