Steel Cable Diameter Strength

Show that the rope strength decreases in a marked degree as the sheave diameter grows smaller with respect to the diameter of the rope.

Steel cable diameter strength.

High strength wire rope. For straightened and cut lengths the minimum tensile strength will be be approximately 90 of the values listed in the table. Spring temper values are in accordance with astm a 313. Our stainless steel aircraft cable consists of thin steel wires that are stranded together to give the cable a combination of flexibility and strength.

Asme b30 5 mobile and locomotive cranes requires a design factor of 3 5 for 6 strand hoist ropes. 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. The mbf of starlift xtra is such that even with the 5 0 design factor. Always have the right size wire on hand with a 72 piece assortment.

Wire rope in service is subjected to several kinds of stresses. Cable diameter diameter with coating breaking strength working load limit 5 1 design factor. Essentially it s the cable thickness and cable diameter. 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.

1 8 3 16 1 760 lbs. This data is for spooled wire. Multipurpose 4140 alloy steel rods and discs. 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.

The same standard requires a design factor of 5 0 for rotation resistant ropes. Where 5 16 steel winch cable breaks at 9800 lbs masterpull s 5 16 standard winch rope breaks at 12 300 lbs which is an okay strength increase. 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. This steel wire rope includes a hook with latch on one end for use with winches.

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. The yield strength of the steel wire undertaking drawing once or more is improved by 40 60 and it has already lost the property of low carbon steel and become hard and brittle belonging to hard steel wire. 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.

The cold drawn steel wire undertakes not only tension but also extrusion shown in figure 8 9.