Full Description

1.1This specification covers steel joint bars for connecting steel rails in mine, industrial, and standard railroad track.

1.2Three grades of joint bars are defined for applications where non-heat treated bars are suitable:

1.2.1Grade 1, low-carbon, primarily for industrial and mine use.

1.2.2Grade 2, medium-carbon, primarily for industrial and mine use.

1.2.3Grade 3, high-carbon, for general use in standard railroad track. They may be used in the production of insulated track joints.

1.3The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

1.4This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.