14.4.3 Sling Construction
Chain sling assemblies are manufactured in various material/heat-treatment combinations to produce the different grades and to suit differing service conditions. The end fittings are attached to the chain by means of:
one or more welded joiner links (See Figure 14.4.3-1 a) or
a mechanical joining device (See Figure 14.4.3-1 b)
All grades are available in welded construction but only grades 8 (or 80), 10 (or 100) and 12 (or 120) are available constructed with mechanical joining devices.
Figure 14.4.3-1 A. Typical single leg sling of welded construction. B. Typical single leg sling with mechanical joining devices.