Technical Standards Tables




Table No. 21.—Black-wire-rope Slings.

TABLE OF SAFE-WORKING LOADS FOR BLACK-WIRE-ROPE SLINGS ON WHICH THE LOAD IS CARRIED ON TWO PARTS OR LEGS OF THE SLING, AND MADE OF ROPE HAVING THE BREAKING-LOAD SPECIFIED IN APPENDIX II.

Safe-working Loads for various Distances between Legs.

Size of Rope. Legs Parallel. B = L.
Circumference, in Inches. Diameter, in Inches (approximate). Strands and Wires 6/19.
Working-load, in Tons, &c. Working-load, in Pounds.
1 5/16 T. cwt. qr. lb.
13/32 0 17 0 16
15/32 1 6 3 12
9/16 1 18 1 4
2 5/8 2 12 0 0
23/32 3 10 3 12
13/16 4 9 0 16
7/8 5 9 0 16
3 15/16 6 10 3 12
11/32 8 5 0 16
11/8 9 12 0 0
13/16 11 6 1 4
4 19/32 12 17 2 24
11/16 14 10 3 12
17/16 16 6 1 4
11/2 18 11 1 20
5 119/32 20 10 3 12
111/16 22 12 2 8
13/4 25 5 2 24
127/32 27 11 1 20
6 129/32 29 19 1 20


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Black-wire-rope slings, Breaking-loads, Working-loads, Technical standards, Tables