ASTM-A970 2009

$40.63

A970/A970M-09 Standard Specification for Headed Steel Bars for Concrete Reinforcement

Published By	Publication Date	Number of Pages
ASTM	2009	7

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Categories: 77.140.15 - Steels for reinforcement of concrete, ASTM

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Description

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 1This 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 Limitations on head dimensions and on obstructions and interruptions of bar deformations on the non-planar features on the bearing face of the head are presented in Annex A1. The requirements in Annex A1 only apply when specified by the purchaser (see 4.1.13).

1.3 This specification is applicable for orders in either SI units as Specification A970M or inch-pound units shown in the text in brackets [Specification A970].

1.4 The values stated in either SI units or inch-pound units are to be regarded separately as standard. 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 the standard.

1.5 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.

PDF Catalog

PDF Pages	PDF Title
1	Scope Referenced Documents Terminology
2	Ordering Information Material and Manufacture FIG. 1
3	Mechanical Test and Performance Requirements Frequency of Testing TABLE 1
4	Finish Inspection Rejection Rehearing Documentation Test Reports Marking FIG. 2
5	Packaging Keywords A1. REQUIREMENTS FOR CLASS HA HEAD DIMENSIONS FIG. A1.1
6	X1. SPECIFICATION PHILOSOPHY FOR HEADED REINFORCING BARS X1.1 X1.2 X1.3 X1.4 X1.5 X1.6 X2. TESTING REQUIREMENTS FOR HEADED BARS X2.1 X2.2 X2.3 X2.4
7	X2.5 X2.6 X3. HEADED REINFORCING BARS IN PRACTICE X3.1 X3.2

Additional information

Standard Title	A970/A970M-09 Standard Specification for Headed Steel Bars for Concrete Reinforcement
Published Code	ASTM
Publication Date	2009
Pages Count	7
ICS Codes	77.140.15 - Steels for reinforcement of concrete

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ASTM-A970 2009

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