1.1 This specification covers heat- treated carbon steel joint bars, microalloyed joint bars, and forged compromise joint bars for general use in standard railroad track.
1.2 The joint bars may be used for the production of insulated joints.

1.1 This specification covers heat- treated carbon steel joint bars, microalloyed joint bars, and forged compromise joint bars for general use in standard railroad track.
1.2 The joint bars may be used for the production of insulated joints.