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ASTM A648-12

Historical Revision

Standard Specification for Steel Wire, Hard Drawn for Prestressing Concrete Pipe

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1.1 This specification covers two classes of uncoated, high-strength, hard-drawn steel wire for use in the manufacture of prestressed concrete pipe. In application, the wire is helically wrapped on the pipe maintaining tension by mechanical means not including drawing dies.

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 A supplementary requirement (S1) is provided for use where hydrogen embrittlement (HE) resistance testing is required by the purchaser. Supplementary requirement (S1), which establishes acceptance criteria for HE resistance testing, applies only when specified in the purchase order or contract.

1.4 The following caveat pertains only to the test method portions of this specification, 6.3.3 and 6.5.3: This specification does not purport to address the safety concerns, if any, associated with its use. It is the responsibility of the user of this specification to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

This specification covers two classes of uncoated, high-strength, hard-drawn steel wires for use in the manufacture of prestressed concrete pipe. The steel shall be made by the open-hearth, basic-oxygen, or electric-furnace process, and shall be free of injurious piping and undue segregation. The wire shall be cold drawn to produce the desired mechanical properties and there shall be no welds or joints in the finished wire. Cast or heat analysis of the steel shall conform to the chemical requirements specified for carbon, manganese, phosphorus, sulfur, silicon, and nitrogen. The tension and relaxation tests shall conform to the specified tensile requirements including tensile strength and breaking strength. Torsion test shall also be performed where test specimens shall be inspected for primary break shear area and longitudinal (spiral) splitting following completion of the test.


SDO ASTM: ASTM International
Document Number A648
Publication Date March 1, 2012
Language en - English
Page Count 5
Revision Level 12
Supercedes
Committee A01.05
Publish Date Document Id Type View
March 1, 2018 A0648-18 Revision
March 1, 2012 A0648-12 Revision
Jan. 1, 2011 A0648-11 Revision
Sept. 1, 2004 A0648-04A Revision
March 1, 2004 A0648-04 Revision
Jan. 1, 2000 A0648-95R00 Reaffirmation