1.1 This specification covers carbon steel crane rails of special designs only, and nominal weights of 104 lb/yd (51.6 kg/m) through 175 lb/yd (86.8 kg/m) for crane runway use.

1.2 When standard tee rail sections are desired, they shall be ordered in accordance with Specification A1.

1.3 Supplementary Requirements S1 through S4 of an optional nature are provided. They shall apply only when specified by the purchaser in the order.

1.4 The values stated in inch-pound units are to be regarded as the standard.