✨ 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.
1¼ 13/32 0 17 0 16
1½ 15/32 1 6 3 12
1¾ 9/16 1 18 1 4
2 5/8 2 12 0 0
2¼ 23/32 3 10 3 12
2½ 13/16 4 9 0 16
2¾ 7/8 5 9 0 16
3 15/16 6 10 3 12
3¼ 11/32 8 5 0 16
3½ 11/8 9 12 0 0
3¾ 13/16 11 6 1 4
4 19/32 12 17 2 24
4¼ 11/16 14 10 3 12
4½ 17/16 16 6 1 4
4¾ 11/2 18 11 1 20
5 119/32 20 10 3 12
5¼ 111/16 22 12 2 8
5½ 13/4 25 5 2 24
5¾ 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