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Zinc plate color callout



(-----) 2004

Does the print callout "Zinc plate per ASTM B633 [affil. link to spec at Techstreet] , Type II, Class Fe/Zn 5 (.0002" Thick)" reference to a color? Perhaps the "Class Fe/Zn 5" is a color specification(?). The Base metal is 1018 CRS.

Thank you.

Jonathan Stone, Mechanical Designer
Electro Scientific Industries, Inc. - Portland, OR, USA
^


2004

If you will be quoting zinc plating specs you should purchase the ASTM spec or contact a zinc plating company. FE/Zinc means zinc electroplate over steel, Type II could be yellow or black dichromate, or olive drab dichromate. Yellow is most common, black second, olive drab next. It will be one of these three finishes.

William F Hemp
- Albion, Michigan
^


2004

Type I Zinc is no supplementry treatment

Type II Zinc is a colored supplementry treatment specified by you.

Type III is a clear supplementary treatment.

Mike Lowden
Quality Metal Finishing - Eugene, OR
^


2004

The 5 refers to 5 microns zinc thickness. The Fe/Zn should be self explanatory.

Dougie Lightfoot
- Fife, Scotland
^

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