Bright drawn steel in square bar profile, key steel is an unalloyed medium carbon steel with reasonable tensile strength. It is supplied bright drawn in flat square sections conforming to the specification requirements of BS46 and BS4235.
Imperial sizes of key steel bar are bright drawn to plus tolerances conforming to BS46 “keys and keyways”.
Metric sizes of key steel bar are bright drawn to minus tolerances conforming to BS4235 “parallel and taper keys”.
