Wire rope is made of plaiting strands of wire – normally medium carbon steel – into a thick cable. The strands are formed around a core. The strands in wire ropes are made of wore twisted together. Strands with smaller diameter wires are less abrasion resistant and more fatigue resistant. Strands made with thicker length of wore are more abrasion resistant and less fatigue resistant.
H-Lift Steel Wire Rope:1)Sizes : From 3mm to 80mm2)Surface Finish : Galvanized and Ungalvanized
3)Core : IWRC, FC and WSC
4)Typical Wire Constructions : 6x37, 6X19, 18x7 and more
5)Tensile Strengths : 1960 N/mm2 (EIPS) and 2160 N/mm2 (EEIPS)
6x19 FC RH OL FSWR:
6 | Number of strands that make up the rope |
19 | Number of wires that make up each strand |
FC | Fibre core |
RH | Right hand lay |
OL | Ordinary lay |
FSWR | Flexible steel wire rope |
FC | Fibre core |
FSWR | Flexible steel wire rope |
FW | Filler wire |
IWR | Independent wire rope |
IWRC | Independent wire rope core |
J | Jute (fibre) |
LH | Left hand lay |
LL | Lang's lay |
NR | Non-rotating |
OL | Ordinary lay |
RH | Right hand lay |
S | Seale |
SF | Seale filler wire |
SW | Seale Warrington |
SWL | Safe working load |
TS | Triangular strand |
W | Warrington |
WF | Warriflex |
WLL | Working load limit |
WS | Warrington Seale |
Ordinary and Lang's lay describe the manner in which the wires are laid to form a strand of the wire rope. To determine which has been used first identify if left or right hand lay has been used to make the rope. Then identify if a right or left hand lay has been used to twist the wires in each strand.
Ordinary lay | The lay of wires in each strand is in the opposite direction to the lay of the strands that form the wire. |
Lang's lay | The lay of wires in each strand is in the same direction as the lay of the strands that form the wire. |
Alternate lay | The lay of wires in the strands alternate around the rope between being in the opposite and same direction to the lay of the strands that form the wire rope. |
Regular lay | Alternate term for ordinary lay. |
Albert's lay | Archaic term for Lang's lay. |
Reverse lay | Alternate term for alternate lay. |
Spring lay | This is not a term used to classify a lay as defined in this section. It refers to a specific construction type of wire rope. |