Vastly used for springs resulting in longer durability, high carbon spring steel wires Grade SH are cold drawn patented wires made from unalloyed wire rods containing higher carbon percentage resulting in wires having combination of ductility, high strength and excellent durability to endure a higher load in springs. Ideal Carbon percentage in this grade ranges from 0.75% to 0.85%.  

These wires can be supplied in both phosphate and galvanized coating and are used mainly for compression, torsion and tension springs which are subjected to high static stresses or medium levels of  dynamic stresses.