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This specification covers the standard for carbon steel bars and shapes rolled from standard rail steel. The material shall be hot wrought from section “T” rails and shall be produced by hot forming slit railroad rail parts to yield straight lengths. One tension test and one hardness test shall be performed from each lot to determine the mechanical properties and shall conform to the requirement in tensile strength, elongation, Brinell hardness, and Rockwell B hardness.
This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.
1.1 This specification covers carbon steel bars and shapes produced from standard rail steel. These bars are furnished in the as-wrought condition intended for structural use, or bar and shape uses, where high tensile properties are applicable. These materials are available in four strength levels as Grade 50, Grade 60, Grade 70, and Grade 80.
1.2 The 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.
1.3 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.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
A1 Specification for Carbon Steel Tee Rails
A29/A29M Specification for General Requirements for Steel Bars, Carbon and Alloy, Hot-Wrought
A370 Test Methods and Definitions for Mechanical Testing of Steel Products
ICS Number Code 77.140.60 (Steel bars and rods); 77.140.70 (Steel profiles)
UNSPSC Code 30263600(Carbon steel bars)
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ASTM A499-15(2020), Standard Specification for Steel Bars and Shapes, Carbon Rolled from “T” Rails, ASTM International, West Conshohocken, PA, 2020, www.astm.orgBack to Top