Steel Cable Diameter Strength

Asme b30 5 mobile and locomotive cranes requires a design factor of 3 5 for 6 strand hoist ropes.
Steel cable diameter strength. The cold drawn steel wire undertakes not only tension but also extrusion shown in figure 8 9. Starlift xtra wire rope has one of the highest strength to diameter ratios on the market. The loss of strength due to bending wire ropes over the sheaves found in common use will not exceed 6 and will usually be about 4. Although the largest diameter of aircraft cable available at tyler madison maxes out at a it is lightweight and strong enough to meet special airline safety standards.
3 8 cable can hold the most weight but it really isn t that necessary as it s primarily for zip lines over 1000 feet. This steel wire rope includes a hook with latch on one end for use with winches. High strength wire rope. Our stainless steel aircraft cable consists of thin steel wires that are stranded together to give the cable a combination of flexibility and strength.
Always have the right size wire on hand with a 72 piece assortment. For straightened and cut lengths the minimum tensile strength will be be approximately 90 of the values listed in the table. Show that the rope strength decreases in a marked degree as the sheave diameter grows smaller with respect to the diameter of the rope. The cold drawn low carbon steel wire is made by tungsten alloy wire drawing model whose cross section is less than q235 or q215 coiled bars with diameter of 6 5 8 mm.
Cable diameter diameter with coating breaking strength working load limit 5 1 design factor. For example our alien flier zip line kits use 3 16 or 1 4 diameter galvanized steel cable which can withstand weights of up to 250 lbs. Essentially it s the cable thickness and cable diameter. The same standard requires a design factor of 5 0 for rotation resistant ropes.
Tensile strength of stainless steel wire. Their 5 16 superline however breaks at 21 700 lbs which is more than double the steel winch cable and a huge improvement in the safety factor. Wire rope with stop. Spring temper values are in accordance with astm a 313.
The mbf of starlift xtra is such that even with the 5 0 design factor. Multipurpose 4140 alloy steel rods and discs. Rope diameter minimum breaking strength safe load weight in mm lb f kn lb f kn lb m ft kg m 1 4. 1 8 3 16 1 760 lbs.
Wire rope in service is subjected to several kinds of stresses.