This European Standard, a part of the BS EN 10270 series, specifies the requirements for patented cold drawn unalloyed steel wire of circular cross-section for the manufacture of mechanical springs for static duty and dynamic duty applications.
Classification and designation requirements are given as well as details of information to be supplied by the purchaser. Specific requirements are given on material, form of delivery, coating and surface finish, mechanical properties, technological properties, supply conditions of wire on coils/reels and spools, surface quality, dimension and dimensional tolerances, and testing and inspection.