ASTM A1094/A1094M-18
(Specification)Standard Specification for Continuous Hot-Dip Galvanized Steel Bars for Concrete Reinforcement
Standard Specification for Continuous Hot-Dip Galvanized Steel Bars for Concrete Reinforcement
SCOPE
1.1 This specification covers steel reinforcing bars, with protective zinc or zinc-alloy coatings applied by the continuous hot-dip process.
Note 1: The galvanizer is identified throughout this specification as the manufacturer.
1.2 Guidelines for construction practices at the job-site are presented in Appendix X1.
1.3 Guidelines for use of continuous hot-dip galvanized reinforcing bars with non-galvanized steel forms are presented in Appendix X2.
1.4 The text of this specification references notes and footnotes which provide explanatory material. These notes and footnotes shall not be considered requirements of the specification.
1.5 This specification is applicable for orders in either inch-pound units (as Specification A1094) or SI units (as Specification A1094M).
1.6 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.
1.7 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.
1.8 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.
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Designation:A1094/A1094M −18
Standard Specification for
Continuous Hot-Dip Galvanized Steel Bars for Concrete
1
Reinforcement
This standard is issued under the fixed designation A1094/A1094M; the number immediately following the designation indicates the
year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last
reapproval. A superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope* Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical
1.1 This specification covers steel reinforcing bars, with
Barriers to Trade (TBT) Committee.
protectivezincorzinc-alloycoatingsappliedbythecontinuous
hot-dip process.
2. Referenced Documents
NOTE 1—The galvanizer is identified throughout this specification as
2
2.1 ASTM Standards:
the manufacturer.
A90/A90M Test Method for Weight [Mass] of Coating on
1.2 Guidelines for construction practices at the job-site are
Iron and Steel Articles with Zinc or Zinc-Alloy Coatings
presented in Appendix X1.
A615/A615M SpecificationforDeformedandPlainCarbon-
1.3 Guidelines for use of continuous hot-dip galvanized Steel Bars for Concrete Reinforcement
reinforcing bars with non-galvanized steel forms are presented
A706/A706M Specification for Deformed and Plain Low-
in Appendix X2. Alloy Steel Bars for Concrete Reinforcement
A780/A780M PracticeforRepairofDamagedandUncoated
1.4 The text of this specification references notes and
Areas of Hot-Dip Galvanized Coatings
footnotes which provide explanatory material. These notes and
A996/A996M Specification for Rail-Steel and Axle-Steel
footnotes shall not be considered requirements of the specifi-
Deformed Bars for Concrete Reinforcement
cation.
B6 Specification for Zinc
1.5 This specification is applicable for orders in either
B487 Test Method for Measurement of Metal and Oxide
inch-pound units (as Specification A1094) or SI units (as
Coating Thickness by Microscopical Examination of
Specification A1094M).
Cross Section
1.6 The values stated in either inch-pound units or SI units B852 Specification for Continuous Galvanizing Grade
are to be regarded separately as standard. Within the text, the (CGG) Zinc Alloys for Hot-Dip Galvanizing of Sheet
SI units are shown in brackets. The values stated in each
Steel
system may not be exact equivalents; therefore, each system E376 Practice for Measuring Coating Thickness by
shall be used independently of the other. Combining values Magnetic-Field or Eddy Current (Electromagnetic) Test-
from the two systems may result in non-conformance with this ing Methods
specification.
3. Terminology
1.7 This specification does not purport to address all of the
safety concerns, if any, associated with its use. It is the 3.1 Definitions of Terms Specific to This Specification:
responsibility of the user of this specification to establish 3.1.1 continuous hot-dip galvanizing, n—the process of
appropriate safety, health, and environmental practices and uninterrupted passage of long lengths of steel products through
determine the applicability of regulatory limitations prior to a molten bath of zinc or zinc-alloy.
use. 3.1.1.1 Discussion—Tocontrolalloyformationandpromote
1.8 This international standard was developed in accor- adhesion of the zinc or zinc-alloy coating with the steel base
dance with internationally recognized principles on standard- metal, the molten coating metal composition normally contains
ization established in the Decision on Principles for the a percentage of aluminum usually in the range from 0.05 to
0.25. This aluminum is purposely supplied to the molten
1
This specification is under the jurisdiction ofASTM Committee A01 on Steel,
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee
2
A01.05 on Steel Reinforcement. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved Nov. 1, 2018. Published November 2018. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 2015. Last previous edition approved in 2016 as A1094/A1094M – 16. Standards volume information, refer to the standard’s Document Summary page on
DOI: 10.1520/A1094_A1094M-18. the ASTM website.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
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A1094/A1094M−18
coating bath, either as a specified ingredient in the zinc spelter 6.4 Coating Thickness Tests:
or by the addition of a master alloy containing aluminum. 6.4.1 Coating thickness tests shall be performed in accor-
dance with one of the following test methods:
3.1.2 lot, n—
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: A1094/A1094M − 16 A1094/A1094M − 18
Standard Specification for
Continuous Hot-Dip Galvanized Steel Bars for Concrete
1
Reinforcement
This standard is issued under the fixed designation A1094/A1094M; the number immediately following the designation indicates the
year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last
reapproval. A superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope*
1.1 This specification covers steel reinforcing bars, with protective zinc or zinc-alloy coatings applied by the continuous hot-dip
process.
NOTE 1—The galvanizer is identified throughout this specification as the manufacturer.
1.2 Guidelines for construction practices at the job-site are presented in Appendix X1.
1.3 Guidelines for use of continuous hot-dip galvanized reinforcing bars with non-galvanized steel forms are presented in
Appendix X2.
1.4 The text of this specification references notes and footnotes which provide explanatory material. These notes and footnotes
shall not be considered requirements of the specification.
1.5 This specification is applicable for orders in either inch-pound units (as Specification A1094) or SI units (as Specification
A1094M).
1.6 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,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.
1.7 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 safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use.
1.8 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
2
2.1 ASTM Standards:
A90/A90M Test Method for Weight [Mass] of Coating on Iron and Steel Articles with Zinc or Zinc-Alloy Coatings
A615/A615M Specification for Deformed and Plain Carbon-Steel Bars for Concrete Reinforcement
A706/A706M Specification for Deformed and Plain Low-Alloy Steel Bars for Concrete Reinforcement
A780/A780M Practice for Repair of Damaged and Uncoated Areas of Hot-Dip Galvanized Coatings
A996/A996M Specification for Rail-Steel and Axle-Steel Deformed Bars for Concrete Reinforcement
B6 Specification for Zinc
B487 Test Method for Measurement of Metal and Oxide Coating Thickness by Microscopical Examination of Cross Section
B852 Specification for Continuous Galvanizing Grade (CGG) Zinc Alloys for Hot-Dip Galvanizing of Sheet Steel
E376 Practice for Measuring Coating Thickness by Magnetic-Field or Eddy Current (Electromagnetic) Testing Methods
1
This specification is under the jurisdiction of ASTM Committee A01 on Steel, Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee A01.05
on Steel Reinforcement.
Current edition approved April 1, 2016Nov. 1, 2018. Published April 2016November 2018. Originally approved in 2015. Last previous edition approved in 20152016 as
A1094/A1094M – 15a.16. DOI: 10.1520/A1094_A1094M-16.10.1520/A1094_A1094M-18.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
A1094/A1094M − 18
3. Terminology
3.1 Definitions of Terms Specific to This Specification:
3.1.1 black, adj—denotes the condition of not galvanized. For purposes of this specification the word “black” does not refer to
the color or condition of the surface, or to a surface deposit or contamination.
3.1.1 continuous hot-dip galvanizing, n—the process of uninterrupted passage of long lengths of steel products t
...
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