SAFETY SLING COMPANY
Serving Industry Since 1945

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Wire Rope Specifications

Wire Rope
6 x 19 (Go to Online Catalog)
Classification Wire Ropes provide an excellent balance between fatigue and wear resistance. It is a very popular, general purpose rope that will give long service with moderately sized sheaves and drums, and is often used for hoists, boom hoists, haulage ropes and slings.
Rope Diameter Nominal Strength*, Tons (Bright & Drawn Galvanized) EIPS Approximate Wt./Ft. (Lbs.)
(In.) IWRC Fiber Core IWRC Fiber Core
1/4" 3.40 3.02 0.116 0.105
5/16" 5.27 4.69 0.18 0.164
3/8" 7.55 6.71 0.26 0.236
7/16" 10.2 9.09 0.35 0.32
1/2" 13.3 11.8 0.46 0.42
9/16" 16.8 14.9 0.59 0.53
5/8" 20.6 18.3 0.72 0.66
3/4" 29.4 26.2 1.04 0.95
7/8" 39.8 35.4 1.42 1.29
1" 51.7 46.0 1.85 1.68
1-1/8" 65.0 57.9 2.34 2.13
1-1/4" 79.9 71.0 2.89 2.63
1-3/8" 96.0 85.4 3.50 3.18
1-1/2" 114.0 101.0 4.16 3.78

*Galvanizing: For 6 x 19 classification class A galvanized wire rope (EIPS & IPS grades only) deduct 10% from the listed nominal strength.

Wire Rope
6 x 37 (Go to Online Catalog)
Classification Wire Ropes have a third layer of wires which make them more flexible, although less abrasion-resistant than ropes of the 6 x 19 class. Each strand contains numerous, comparatively small diameter wires which offer superior bending ability. As the number of wires in each strand increases, flexibility increases. Often used on winches and as hoist ropes on overhead and mobile cranes.
Rope Diameter Nominal Strength*, Tons (Bright & Drawn Galvanized) EIPS Approximate Wt./Ft. (Lbs.)
(In.) IWRC Fiber Core IWRC Fiber Core
1/4" 3.40 3.02 0.116 0.105
5/16" 5.27 4.69 0.18 0.164
3/8" 7.55 6.71 0.26 0.236
7/16" 10.2 9.09 0.35 0.32
1/2" 13.3 11.8 0.46 0.42
9/16" 16.8 14.9 0.59 0.53
5/8" 20.6 18.3 0.72 0.66
3/4" 29.4 26.2 1.04 0.95
7/8" 39.8 35.4 1.42 1.29
1" 51.7 46.0 1.85 1.68
1-1/8" 65.0 57.9 2.34 2.13
1-1/4" 79.9 71.0 2.89 2.63
1-3/8" 96.0 85.4 3.50 3.18
1-1/2" 114.0 101.0 4.16 3.78
1-5/8" 132.0 118.0 4.88 4.44
1-3/4" 153.0 136.0 5.67 5.15
1-7/8" 174.0 155.0 6.50 5.91
2" 198.0 176.0 7.39 6.72
2-1/8" 221.0 197.0 8.35 7.59

*Galvanizing: For 6 x 37 classification class A galvanized wire rope (EIPS & IPS grades only) deduct 10% from the listed nominal strength.

Wire Rope
19 x 7 (Go to Online Catalog)
Rotation-Resistant Wire Rope is a special class of rope designed to resist the tendency to spin or rotate under load. This is achieved by laying 6 strands around the core in one direction, then laying 12 strands around the first operation in another direction. It is often used for hoisting unguided loads with a single part rope. This unique design does, however, impose certain limitations on the rope's application and handling.
Rope Diameter Nominal Strength*, Tons Approx. Wt./Ft. Rope Diameter Nominal Strength*, Tons Approx. Wt./Ft.
(In.) EIPS (Lbs.) (In.) EIPS (Lbs.)
3/16" 1.57 0.064 3/4" 24.0 1.02
1/4" 2.77 0.113 7/8" 32.5 1.39
5/16" 4.30 0.177 1" 42.2 1.82
3/8" 6.15 0.25 1-1/8" 53.1 2.30
7/16" 8.33 0.35 1-1/4" 65.1 2.80
1/2" 10.8 0.45 1-3/8" 78.4 3.43
9/16" 13.6 0.58 1-1/2" 92.8 4.08
5/8" 16.8 0.71 1-5/8" 108.0 4.80

*Note: These strengths apply only when a test is conducted with both ends fixed. When in use, the strength of these ropes will be reduced if one end is free to rotate.

Small Diameter Specialty Wire

Wire Rope
7 x 19 Stainless Steel Aircraft Cable Type 304 (Go to Online Catalog)
Is selected for its excellent corrosion-resistant qualities and is often used in light hoisting and rigging applications. Its chromium content forms an impervious protective barrier against corrosive environments. More expensive and weaker than comparably sized galvanized aircraft cable.
Size (In.) Nominal Strength Pounds Approx Weight Per 1000 Ft.
3/32" 920 17 Lbs.
1/8" 1,760 29 Lbs.
5/32" 2,400 45 Lbs.
3/16" 3,700 65 Lbs.
1/4" 6,400 110 Lbs.
5/16" 9,000 173 Lbs.
3/8" 12,000 243 Lbs.
Wire Rope
7 x 19 Galvanized Aircraft Cable (Go to Online Catalog)
Is a common industry term for small diameter, corrosion-resistant, zinc-coated wire rope originally designed for aeronautical applications. It is a flexible and inexpensive cable used on winches, guy lines and numerous other commercial, industrial and marine applications.
Also available with a flexible, vinyl P.V.C. coating to extend the cable's life by protecting wires from abrasion, dirt, grit and moisture, sealing in lubrication and reducing wear on sheaves and pulleys. Also protects hands, clothes and other materials it contacts.
Size (In.) Nominal Strength Pounds Approx Weight Per 1000 Ft.
3/32" 1,000 17.4 Lbs.
1/8" 2,000 29 Lbs.
5/32" 2,800 45 Lbs.
3/16" 4,200 65 Lbs.
7/32" 5,600 86 Lbs.
1/4" 7,000 110 Lbs.
5/16" 9,800 173 Lbs.
3/8" 14,400 243 Lbs.

High Performance Wire Rope

Wire Rope
Constructex® Rope
Is a coreless rope made of three 7-wire strands, three 24-wire strands and three 40-wire strands which are closed in one operation and lightly swaged to give the finished strands a triangular shape. The result of this unique construction is a rope that gives longer life, less wear on both rope and equipment, higher strength, increased crush resistance and improved flexibility.
Wire Rope
Dy-Pac® 6 (Go to Online Catalog)
Backed by over a century of rope-making experience, Wire Rope Industries offers a series of specialized Surelift products and services to meet the varied and increasingly demanding requirements of industrial crane and winching equipment. Tested and designed for superior performance and value, our Surelift line includes high performance products such as Dy-Pac 6. Read More...
Wire Rope
Dy-Pac® 18 (Go to Online Catalog)
Backed by over a century of rope-making experience, Wire Rope Industries offers a series of specialized Surelift products and services to meet the increasingly demanding requirements of crane hoisting applications. Tested and designed for superior performance and value, our Surelift line includes high performance products such as Dy-Pac 18 rotation resistant ropes. Read More...
Wire Rope
Cushion-Pac® 18 (Go to Online Catalog)
The first multi-strand crane rope that can truly be externally inspected. We continue to design and redesign out "Ropes that Outperform" to meet all your lifting needs.Read More...

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