ASTM A1059/A1059M-18
Standard Specification for Zinc Alloy Thermo-Diffusion Coatings (TDC) on Steel Fasteners, Hardware, and Other Products

Standard No.

ASTM A1059/A1059M-18

Release Date

2018

Published By

American Society for Testing and Materials (ASTM)

Latest

ASTM A1059/A1059M-18

Scope

1.1 This specification covers the general requirements for protective zinc coatings (hereinafter referred to as the coatings) to be applied by the thermo-diffusion coating (TDC) method, to various products made of carbon steel, including low and high tensile parts as well as of wrought iron, iron and steel castings, sintered iron steel-powder, and various steel and stainless alloys. TDC is a dry coating process carried out by immersing the parts in a zinc or zinc alloy powder at elevated temperature for a period of time, causing a metallurgical diffusion process of zinc and iron. Further processing may be added, such as passivation, topcoat application, paint application, etc. 1.2 This specification is applicable to orders in either inch-pound units (as A1059) or in SI units (as A1059M). 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 inch-pound units, such shall be stated to the applicator when the order is placed. 1.3 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. 1.4 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 A1059/A1059M-18 Referenced Document

• ASTM A385/A385M Standard Practice for Providing High-Quality Zinc Coatings (Hot-Dip)*， 2022-11-01 Update
• ASTM A700 Standard Practices for Packaging, Marking, and Loading Methods for Steel Products for Domestic Shipment
• 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 D521 Standard Test Methods for Chemical Analysis of Zinc Dust (Metallic Zinc Powder)
• ASTM D6386 Standard Practice for Preparation of Zinc (Hot-Dip Galvanized) Coated Iron and Steel Product and Hardware Surfaces for Painting
• ASTM E376 Standard Practice for Measuring Coating Thickness by Magnetic-Field or Eddy-Current (Electromagnetic) Test Methods
• 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 F2674 Standard Specification for Zinc Coating, Hot-Dip, Requirements for Application to Carbon and Alloy Steel Bolts, Screws, Washers, Nuts, and Special Threaded Fasteners [Metric]*， 2024-04-20 Update

ASTM A1059/A1059M-18 history

• 2018 ASTM A1059/A1059M-18 Standard Specification for Zinc Alloy Thermo-Diffusion Coatings (TDC) on Steel Fasteners, Hardware, and Other Products
• 2008 ASTM A1059/A1059M-08(2013) Standard Specification for Zinc Alloy Thermo-Diffusion Coatings (TDC) on Steel Fasteners, Hardware, and Other Products
• 2008 ASTM A1059/A1059M-08 Standard Specification for Zinc Alloy Thermo-Diffusion Coatings (TDC) on Steel Fasteners, Hardware, and Other Products