The term “patented wire” refers to a particular process through which steel wire is strengthened to particular specifications, rather than an actual type of wire. Sometimes called “improved plow steel” or “extra improved plow steel” wire, patented wire is high-carbon, high-tensile steel wire that has been put through a special heat-treatment process for added durability and strength. For this reason, patented wire is popular for use in the manufacturing of wire rope, music wire and high tensile spring applications.

The patenting process, developed in England, involves running high-carbon steel wires through tubes in a furnace heated to a temperature of 970 ˚F, then rapidly cooling the wire in air or molten lead. This has the effect of strengthening the wire without separating the iron from the other elements in the wire.

Patented wire can be made to a variety of hardness levels, depending mainly on the carbon level in the steel prior to quenching. It is also available in a variety of diameter sizes.

For the highest quality patented wire, oil-tempered wire, PC strand, guy strand and more, Madison Steel gives you access to volume-purchase, direct-from manufacturer materials at highly competitive prices. Our suppliers provide only high-grade products, and with seven distribution locations throughout the U.S., we have the logistics in place to ensure your shipment arrives when you need it. Whatever your steel raw material needs, Madison Steel has the resources to get it to you on time and at a fair cost. To learn more, please call our Atlanta offices at 404-343-4855.