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ASTM A970/A970M-07

Historical Reaffirmation

Standard Specification for Headed Steel Bars for Concrete Reinforcement

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1.1 This specification covers deformed and plain steel reinforcing bars in cut lengths, with a head attached to one or both ends, for concrete reinforcement. Attachment can be accomplished through welding, by integrally hot forging of a head from the reinforcing bar end, by internal threads in the head mating to threads on the bar end, or by a separate threaded nut to secure the head to the bar. Heads are forge formed, machined from bar stock, or cut from plate.

Note 1

This specification is applicable for headed bars produced with welded, threaded, or forged heads and used for reinforcement of concrete structures. The requirements of this specification are not applicable to headed bars where the attachment of the head is accomplished by alternate means.

1.2 This specification is applicable for orders in either SI units as Specification A 970M or inch-pound units shown in the text in brackets [Specification A 970].

1.3 &combined-units;

This standard 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 standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.


This specification covers deformed and plain steel reinforcing bars in cut lengths with a head attached to one or both ends for reinforcing concrete structures. This standard applies only to headed bars with welded, threaded or forged heads. Material, manufacturing and testing requirements for the reinforcing bars shall be in accordance with other ASTM documents listed herein.


SDO ASTM: ASTM International
Document Number A970
Publication Date Oct. 15, 2007
Language en - English
Page Count 6
Revision Level 07
Supercedes
Committee A01.05
Publish Date Document Id Type View
Aug. 15, 2024 A0970_A0970M-24 Revision
Sept. 1, 2018 A0970_A0970M-18 Revision
Nov. 15, 2017 A0970_A0970M-17 Revision
March 1, 2016 A0970_A0970M-16 Revision
March 1, 2015 A0970_A0970M-15E01 Revision
March 1, 2015 A0970_A0970M-15 Revision
July 1, 2013 A0970_A0970M-13A Revision
April 1, 2013 A0970_A0970M-13 Revision
Feb. 15, 2012 A0970_A0970M-12 Revision
Nov. 15, 2009 A0970_A0970M-09 Revision
March 1, 2006 A0970_A0970M-06 Revision
Feb. 1, 2004 A0970_A0970M-04AE01 Revision
Feb. 1, 2004 A0970_A0970M-04A Revision
Jan. 1, 2004 A0970_A0970M-04 Revision
March 10, 1998 A0970_A0970M-98 Revision
Oct. 15, 2007 A0970_A0970M-07 Reaffirmation