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ASTM A704/A704M-19e1

Historical Revision

Standard Specification for Welded Steel Plain Bar or Rod Mats for Concrete Reinforcement

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1.1 This specification covers material in mat (or sheet) form fabricated from hot-rolled, plain steel bars or rods to be used for the reinforcement of concrete. Mats are made from two layers of bars or rods that are assembled by welding the intersections at right angles to each other.

1.2 This specification is applicable for orders in either inch-pound units (as A704) or in SI units [as A704M].

1.3 The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with this specification.

1.4 This specification does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this specification to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.5 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.


This specification covers materials in mat (or sheet) form fabricated from hot-rolled, plain steel bars or rods to be used for the reinforcement of concrete. Mats consist of two layers of bars or rods that are assembled by welding at right angles to each other. Welding shall be done in such a way that the minimum tensile strength, yield strength, and elongation requirements shall be met. Tension and shear tests shall be performed to meet the required strength and elongation properties and maximum size of a bar or rod material. A retest shall be performed when a specimen fails to meet the specified requirements. All tests and inspections shall be made at the place of fabrication prior to shipment, unless otherwise specified, and shall be so conducted as not to interfere unnecessarily with fabricating operations.


SDO ASTM: ASTM International
Document Number A704
Publication Date Sept. 1, 2019
Language en - English
Page Count 3
Revision Level 19e1
Supercedes
Committee A01.05
Publish Date Document Id Type View
May 1, 2024 A0704_A0704M-24 Revision
Sept. 1, 2019 A0704_A0704M-19E01 Revision
Sept. 1, 2019 A0704_A0704M-19 Revision
Nov. 1, 2018 A0704_A0704M-18 Revision
Sept. 1, 2017 A0704_A0704M-17 Revision
March 1, 2006 A0704_A0704M-06 Revision
March 1, 2005 A0704_A0704M-05 Revision
Sept. 10, 2001 A0704_A0704M-96 Revision
Sept. 10, 2001 A0704_A0704M-01 Revision
Nov. 1, 2011 A0704_A0704M-06R11 Reaffirmation