ASTM F3019/F3019M-14
Standard Specification for Chromium Free Zinc-Flake Composite, with or without Integral Lubricant, Corrosion Protective Coatings for Fasteners

Standard No.

ASTM F3019/F3019M-14

Release Date

2014

Published By

American Society for Testing and Materials (ASTM)

Status

Be replaced

Replace By

ASTM F3019/F3019M-19

Latest

ASTM F3019/F3019M-19

Scope

1.1 This specification covers the basic requirements for non-electrolytically applied zinc-flake composite corrosion protective coating systems for fasteners (See Note 1).

Note 1: The coating systems do not contain hexavalent chromium, lead, cadmium, or mercury.

1.2 This specification is intended for corrosion protection of inch and metric series threaded fasteners with minimum nominal diameters of 0.250 in. for inch series and [6.00 mm] for metric as well as for non-threaded fasteners such as washers and pins.

1.3 This coating system may be specified to consist of a zinc-flake basecoat, or a zinc-flake basecoat and topcoat (See Note 2).

Note 2: For threaded fasteners, the coating system will typically consist of a zinc-flake basecoat and topcoat.

1.3.1 The basecoat is a zinc-rich material containing aluminum flakes dispersed in a compatible liquid medium. The zinc-flake basecoat may be specified to contain integral lubricant.

1.3.2 Topcoats may be organic or inorganic in composition depending upon the specified requirements.

1.3.2.1 Organic topcoats consist of polymer resins, aluminum, dispersed pigments, and are colored in their applied state.

1.3.2.2 Inorganic topcoats consist of water-dispersed silicate compounds and are transparent in their applied state.

1.3.2.3 Topcoats contain integral lubricants and are applied in conjunction with zinc-flake basecoats to form a coating system with enhanced performance attributes such as increased corrosion resistance, total coefficient of friction properties, chemical resistance, and color.

1.4 These zinc-flake basecoats and topcoats are applied by conventional dip-spin, dip-drain, or spray methods to fasteners which can be handled through a cleaning, coating, and curing operation. The maximum curing temperature is 482°F [250°C].

1.5 The friction properties of the coating system may be determined by a standard test to verify process control or by a part specific test which requires the purchaser to establish and communicate technical criteria.

1.6 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.

1.7......

ASTM F3019/F3019M-14 Referenced Document

• ASTM B117 Standard Practice for Operating Salt Spray (Fog) Apparatus
• ASTM B487 Standard Test Method for Measurement of Metal and Oxide Coating Thickness by Microscopical Examination of Cross Section
• ASTM B499 Standard Test Method for Measurement of Coating Thicknesses by the Magnetic Method: Nonmagnetic Coatings on Magnetic Basis Metals
• ASTM B568 Standard Test Method for Measurement of Coating Thickness by X-Ray Spectrometry
• ASTM D3359 Standard Test Methods for Measuring Adhesion by Tape Test
• ASTM D610 Standard Test Method for Evaluating Degree of Rusting on Painted Steel Surfaces
• 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
• ASTM F1624 Standard Test Method for Measurement of Hydrogen Embrittlement Threshold in Steel by the Incremental Step Loading Technique
• ASTM F1789 Standard Terminology for F16 Mechanical Fasteners
• ASTM F1940 Standard Test Method for Process Control Verification to Prevent Hydrogen Embrittlement in Plated or Coated Fasteners
• ASTM F606 Standard Test Methods for Determining the Mechanical Properties of Externally and Internally Threaded Fasteners, Washers, and Rivets
• ASTM F606M Standard Test Methods for Determining the Mechanical Properties of Externally and Internally Threaded Fasteners, Washers, and Rivets [Metric]
• ASTM F788 Standard Specification for Surface Discontinuities of Bolts, Screws, Studs, and Rivets, Inch and Metric Series
• ISO 16047 Fasteners — Torque/clamp force testing AMENDMENT 1

ASTM F3019/F3019M-14 history

• 2019 ASTM F3019/F3019M-19 Standard Specification for Chromium Free Zinc-Flake Composite, with or without Integral Lubricant, Corrosion Protective Coatings for Fasteners
• 2014 ASTM F3019/F3019M-14 Standard Specification for Chromium Free Zinc-Flake Composite, with or without Integral Lubricant, Corrosion Protective Coatings for Fasteners