Two or more wires laid together. The construction is normally referred to as 1 x the number of wires involved: i.e. 1 x 7 or 1 x 19.
1 x 7 (7 Wires)
This is the basic strand construction which is used in different combinations to construct another strand or other cables. It is somewhat stiff in larger diameters.
(1 x 7 wire can be found in all diameters of Econoflex brands of Soft Fex.)
1 x 19 (19 Wires)
Stronger and more flexible than 1 x 7 and more symmetrical in configuration, affording still better properties than 1 x 7.
Three or more strands laid together. The construction is normally referred to as the number of strands x number of wires in each strand: i.e. 7 x 7.
3 x 7 (21 Wires)
A combination of three 1 x 7 strands. Very flexible in small diameters.
(3 x 7 wire can be found in the .014 Fine diameter of Soft Flex)
7 x 7 (49 Wires)
A combination of seven 1 x 7 strands, affording abrasion resistance and the most flexibility through a wide range of diameters.
(7 x 7 wire can be found in the .019″ and .024″ Heavy diameters of Soft Flex.)