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ASTM A49-12

Current Revision

Standard Specification for Heat-Treated Carbon Steel Joint Bars, Microalloyed Joint Bars, and Forged Carbon Steel Compromise Joint Bars

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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.

1.3 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.


This specification covers heat-treated carbon steel joint bars, microalloyed joint bars, and forged compromise joint bars to be used in standard railroad track and production of insulated joints. Manufacturing of the steel shall be done either by basic-oxygen process, electric-furnace process, or both. The chemical composition of the steel joint bars shall be within the limits specified for carbon, manganese, phosphorus, and sulfur. Requirements for heat or cast analysis, product analysis, and tensile testing are detailed. Specifications for the material tensile properties such as tensile strength, yield point, yield strength, and elongation are given.


SDO ASTM: ASTM International
Document Number A49
Publication Date March 1, 2012
Language en - English
Page Count 4
Revision Level 12
Supercedes
Committee A01.01
Publish Date Document Id Type View
March 1, 2012 A0049-12 Revision
April 10, 2001 A0049-95 Revision
April 10, 2001 A0049-01 Revision
March 1, 2019 A0049-12R19 Reaffirmation
March 1, 2006 A0049-01R06 Reaffirmation