CBM Construction Industries LLC
Wire Rope & Strand
Wire ropes are identified by a nomenclature that is referenced to the number of strands in the rope and the geometric arrangement of wires in the each strand.
Wire Rope...
Is an assembly of several strands helically of metal wire laid in one or more layers around a core.
7X19 CONTRUCTION (7 Strands of 19 wires)
High Strength
More Stretch
Most Flexible
Strand...
Is an assembly of several wires of appropriate shape and the dimensions laid helically in the same direction in one or more layers around a central element.
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1X19
CONSTRUCTION19 Single Strands
Strongest
Lowest Stretch
Least Flexible
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1X37
CONSTRUCTION37 Single Strands
Strongest
Lowest Stretch
Least Flexible
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1X61
CONSTRUCTION61 Single Strands
Strong
Low Stretch
Least Flexible
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1X91
CONSTRUCTION91 Single Strands
Strong
Low Stretch
Least Flexible
Stretch in wire ropes:
Stretch is a characteristic of all wire ropes, initially as permanent stretch when the load is first applied and the individual wires bed down and then as conventional elastic stretch within the wires. Where stretch is critical to the application, initial stretch can be accounted for with cables pre-stressed during cable manufacturing. Elastic stretch can be calculated by the following formula.
Stretch In Wire Ropes:
