ASTM A123/A123M

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Standard Specification for Zinc (Hot-Dip Galvanized) Coatings on Iron and Steel Products

2017 Edition

Published by ASTM International, 09/01/2017

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Description

ASTM A123/A123M, 2017 Edition – Zinc (Hot-Dip Galvanized) Coatings on Iron and Steel Products

ASTM A123 covers both unfabricated products and fabricated products, for example, assembled steel products, structural steel fabrications, large tubes already bent or welded before galvanizing, and wire work fabricated from uncoated steel wire. This specification also covers steel forgings and iron castings incorporated into pieces fabricated before galvanizing or which are too large to be centrifuged (or otherwise handled to remove excess galvanizing bath metal). NOTE 1—This specification covers those products previously addressed in Specifications A123-78 and A386-78.

This specification does not apply to wire, pipe, tube, or steel sheet which is galvanized on specialized or continuous lines, or to steel less than 22 gage (0.0299 in.) [0.76 mm] thick.

The galvanizing of hardware items that are to be centrifuged or otherwise handled to remove excess zinc (such as bolts and similar threaded fasteners, castings and rolled, pressed and forged items) shall be in accordance with Specification ASTM A153/A153M.

Fabricated reinforcing steel bar assemblies are covered by the present specification. The batch galvanizing of separate reinforcing steel bars shall be in accordance with Specification A767/A767M and the continuous galvanizing of reinforcing bars shall be in accordance with Specification A1094/A1094M.

This specification is applicable to orders in either inch-pound units (as A123) or SI units (as A123M). Inchpound units and SI units are not necessarily exact equivalents. Within the text of this specification and where appropriate, SI units are shown in parentheses. Each system shall be used independently of the other without combining values in any way. In the case of orders in SI units, all testing and inspection shall be done using the metric equivalent of the test or inspection method as appropriate. In the case of orders in SI units, such shall be stated to the galvanizer when the order is placed.

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

*A Summary of Changes section appears at the end of this standard

General Product Information:

Revision 2017 Edition
Document Type PDF
Document Language English
Pages 9
Publisher ASTM International (ASTM)
Status Current

ASTM Volume

01.06: Coated Steel Products

This volume covers aluminum or zinc-coated steel, tin mill products, and coated steel wire. It also includes standards for chain-link, ornamental, and security fences.