Wire Cables

Extract

High tensile steel wire has many uses in connection with aircraft. A single wire has the advantage of a high breaking stress, greater than that of the bulk material from which it is made, because, as Goodman has pointed out, the drawing produces an elongated stricture of the steel, and the wire strength approximates to the true breaking stress of a larger specimen, which is the tension the latter resists at the moment of fracture divided by the reduced area. The British Engineering Standards Association's specification, 2wi., requires a minimum breaking stress of 80 tons per sq. in. up to 0.160in. diameter, 90 to 0.116, and 100 to 0.064. These stresses can safely be exceeded when required particularly with wire of small diameter.