ASTM A153/A153M-23
Standard Specification for Zinc Coating (Hot-Dip) on Iron and Steel Hardware

Standard No.

ASTM A153/A153M-23

Release Date

2023

Published By

American Society for Testing and Materials (ASTM)

Latest

ASTM A153/A153M-23

Scope

1.1  This specification covers zinc coatings applied by the hot-dip process on iron and steel hardware. The hot-dip galvanizing process consists of parts being immersed in molten zinc for a sufficient time to allow a metallurgical reaction between iron from the steel surface and the molten zinc, resulting in the formation of Zn/Fe alloy layers bonding the coating to the steel surface. 1.2  This specification is intended to be applicable to hardware items that are centrifuged or otherwise handled to remove excess galvanizing bath metal (free zinc). Coating thickness grade requirements reflect this. 1.3  Fasteners that must comply with the Fastener Quality Act require specific statistical sampling during the inspection of the fastener lots. Requirements for the sampling of these fasteners can be found in F2329/F2329M . 1.4  This specification is applicable to orders in either inch-pound units (as A153 ) or in SI units (as A153M ). Inch-pound units and SI units are not necessarily exact equivalents. Within the text of this specification and where appropriate, SI units are shown in brackets. 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. 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.6  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.

ASTM A153/A153M-23 Referenced Document

• ASTM A143/A143M Standard Practice for Safeguarding Against Embrittlement of Hot-Dip Galvanized Structural Steel Products and Procedure for Detecting Embrittlement
• ASTM A780 Standard Practice for Repair of Damaged and Uncoated Areas of Hot-Dip Galvanized Coatings*， 2024-04-20 Update
• ASTM A90/A90M Standard Test Method for Weight [Mass] of Coating on Iron and Steel Articles with Zinc or Zinc-Alloy Coatings
• ASTM A902 Standard Terminology Relating to Metallic Coated Steel Products
• ASTM B487 Standard Test Method for Measurement of Metal and Oxide Coating Thickness by Microscopical Examination of Cross Section
• ASTM B6 Standard Specification for Zinc
• ASTM B960 Standard Specification for Prime Western Grade-Recycled (PWG-R) Zinc
• ASTM E376 Standard Practice for Measuring Coating Thickness by Magnetic-Field or Eddy-Current (Electromagnetic) Test Methods
• ASTM F1470 Standard Practice for Fastener Sampling for Specified Mechanical Properties and Performance Inspection*， 2024-01-26 Update
• ASTM F1789 Standard Terminology for F16 Mechanical Fasteners*， 2023-11-01 Update
• ASTM F2329/F2329M Standard Specification for Zinc Coating, Hot-Dip, Requirements for Application to Carbon and Alloy Steel Bolts, Screws, Washers, Nuts, and Special Threaded Fasteners*， 2023-11-01 Update

ASTM A153/A153M-23 history

• 2023 ASTM A153/A153M-23 Standard Specification for Zinc Coating (Hot-Dip) on Iron and Steel Hardware
• 2016 ASTM A153/A153M-16a Standard Specification for Zinc Coating (Hot-Dip) on Iron and Steel Hardware
• 2016 ASTM A153/A153M-16 Standard Specification for Zinc Coating (Hot-Dip) on Iron and Steel Hardware
• 2009 ASTM A153/A153M-09 Standard Specification for Zinc Coating (Hot-Dip) on Iron and Steel Hardware
• 2005 ASTM A153/A153M-05 Standard Specification for Zinc Coating (Hot-Dip) on Iron and Steel Hardware
• 2004 ASTM A153/A153M-04 Standard Specification for Zinc Coating (Hot-Dip) on Iron and Steel Hardware
• 2003 ASTM A153/A153M-03 Standard Specification for Zinc Coating (Hot-Dip) on Iron and Steel Hardware
• 2002 ASTM A153/A153M-02 Standard Specification for Zinc Coating (Hot-Dip) on Iron and Steel Hardware
• 2001 ASTM A153/A153M-01a Standard Specification for Zinc Coating (Hot-Dip) on Iron and Steel Hardware
• 2001 ASTM A153/A153M-01 Standard Specification for Zinc Coating (Hot-Dip) on Iron and Steel Hardware
• 2000 ASTM A153/A153M-00 Standard Specification for Zinc Coating (Hot-Dip) on Iron and Steel Hardware
• 1982 ASTM A153-82(1987) Standard Specification for Zinc Coating (Hot-Dip) on Iron and Steel Hardware