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This 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.
Designation: A49 − 12 (Reapproved 2019)
Standard Specification for
Heat-Treated Carbon Steel Joint Bars, Microalloyed Joint
Bars, and Forged Carbon Steel Compromise Joint Bars1
This standard is issued under the fixed designation A49; the number immediately following the designation indicates the year of original
adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A superscript
epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope 3. Ordering Information
1.1 This specification covers heat-treated carbon steel joint 3.1 Orders for joint bars under this specification shall
bars, microalloyed joint bars, and forged compromise joint bars include the following information as appropriate:
for general use in standard railroad track. 3.1.1 Quantity—number of pairs of bars,
1.2 The joint bars may be used for the production of 3.1.2 Type—design or type bar along with section designa-
insulated joints. tion and weight of rails being joined,
3.1.3 Dimens
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