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FORD WSS-M21P52-A1

FASTENER FINISH S437U, ELECTROPLATED ZINC, TRIVALENT CHROMIUM PASSIVATE, SILVER IRIDESCENT ***TO BE USED WITH FORD WSS-M99P1111-A***

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Organization: FORD
Publication Date: 22 March 2019
Status: inactive
Page Count: 6
scope:

The materials defined by these specifications are corrosion protective coatings over steel and iron substrates. All consist of electrolytic or non-electrolytic zinc plating with trivalent chromium passivate. A2, A3 and A4 are also coated with a clear sealer to increase corrosion resistance and/or to provide consistent torque-tension control.

Document History

FORD WSS-M21P52-A1
June 13, 2019
FASTENER FINISH S437U, ELECTROPLATED ZINC, TRIVALENT CHROMIUM PASSIVATE, SILVER IRIDESCENT ***TO BE USED WITH FORD WSS-M99P1111-A***
The materials defined by these specifications are corrosion protective coatings over steel and iron substrates. All consist of electrolytic or non-electrolytic zinc plating with trivalent chromium...
FORD WSS-M21P52-A1
March 22, 2019
FASTENER FINISH S437U, ELECTROPLATED ZINC, TRIVALENT CHROMIUM PASSIVATE, SILVER IRIDESCENT ***TO BE USED WITH FORD WSS-M99P1111-A***
The materials defined by these specifications are corrosion protective coatings over steel and iron substrates. All consist of electrolytic or non-electrolytic zinc plating with trivalent chromium...
FORD WSS-M21P52-A1
May 25, 2018
FASTENER FINISH, ELECTROPLATED ZINC, TRIVALENT CHROMIUM PASSIVATE, SILVER IRIDESCENT ***TO BE USED WITH FORD WSS-M99P1111-A***
The materials defined by these specifications are corrosion protective coatings over steel and iron substrates. All consist of electrolytic or non-electrolytic zinc plating with trivalent chromium...
FORD WSS-M21P52-A1
March 22, 2013
FASTENER FINISH, ELECTROPLATED ZINC, TRIVALENT CHROMIUM PASSIVATE, SILVER IRIDESCENT ***TO BE USED WITH FORD WSS-M99P1111-A***
The materials defined by these specifications are corrosion protective coatings over steel and iron substrates. All consist of electrolytic or non-electrolytic zinc plating with trivalent chromium...

References

This document references:
FORD WSS-M21P52-A3 - FASTENER FINISH S437M, MECHANICAL ZINC, TRIVALENT CHROMIUM PASSIVATE, LUBRICATED TOPCOAT SEALER, SILVER-GREY ***TO BE USED WITH FORD WSS-M99P1111-A***
Published by FORD on June 13, 2019
The materials defined by these specifications are corrosion protective coatings over steel and iron substrates. All consist of electrolytic or non-electrolytic zinc plating with trivalent chromium...
This document references:
ASTM B117 - Standard Practice for Operating Salt Spray (Fog) Apparatus
Published by ASTM on November 1, 2019
This practice covers the apparatus, procedure, and conditions required to create and maintain the salt spray (fog) test environment. Suitable apparatus which may be used is described in Appendix X1....
This document references:
ASTM B487 - Standard Test Method for Measurement of Metal and Oxide Coating Thickness by Microscopical Examination of Cross Section
Published by ASTM on November 1, 2020
This test method covers measurement of the local thickness of metal and oxide coatings by the microscopical examination of cross sections using an optical microscope. Under good conditions, when...
This document references:
WX 100 - FINISH SPECIFICATION
Published by FORD on November 1, 2023
The following specification covers requirements for finishes used on Worldwide Standard and Utility Parts. Obsolete finish specifications are not shown in this standard. If a finish is referenced...
This document references:
B499 - Standard Test Method for Measurement of Coating Thicknesses by the Magnetic Method: Nonmagnetic Coatings on Magnetic Basis Metals
April 15, 2009
This test method covers the use of magnetic instruments for the nondestructive measurement of the thickness of nonmagnetic coatings over ferrous or other magnetic base metals. It is intended to...
This document references:
ASTM B568 - Standard Test Method for Measurement of Coating Thickness by X-Ray Spectrometry
Published by ASTM on November 10, 1998
This test method covers the use of X-ray spectrometry to determine thickness of metallic and some nonmetallic coatings. The maximum measurable thickness for a given coating is that thickness beyond...
This document references:
ASTM B571 - Standard Practice for Qualitative Adhesion Testing of Metallic Coatings
Published by ASTM on August 1, 2018
This practice covers simple, qualitative tests for evaluating the adhesion of metallic coatings on various substances. The values stated in SI units are to be regarded as standard. No other units of...
This document references:
FORD WSS-M21P52-A3 - FASTENER FINISH S437M, MECHANICAL ZINC, TRIVALENT CHROMIUM PASSIVATE, LUBRICATED TOPCOAT SEALER, SILVER-GREY ***TO BE USED WITH FORD WSS-M99P1111-A***
Published by FORD on June 13, 2019
The materials defined by these specifications are corrosion protective coatings over steel and iron substrates. All consist of electrolytic or non-electrolytic zinc plating with trivalent chromium...
This document references:
WX 100 - FINISH SPECIFICATION
Published by FORD on November 1, 2023
The following specification covers requirements for finishes used on Worldwide Standard and Utility Parts. Obsolete finish specifications are not shown in this standard. If a finish is referenced...
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