ASTM B449-93(2022)

Standard Specification for Chromates on Aluminum

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STANDARD published on 1.10.2022


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The information about the standard:

Designation standards: ASTM B449-93(2022)
Publication date standards: 1.10.2022
SKU: NS-1086734
The number of pages: 5
Approximate weight : 15 g (0.03 lbs)
Country: American technical standard
Category: Technical standards ASTM

The category - similar standards:

Other treatments and coatings

Annotation of standard text ASTM B449-93(2022) :

This specification covers the requirements relating to rinsed and non rinsed chromate conversion coatings on aluminum and aluminum alloys intended to give protection against corrosion and as a base for other coatings. Aluminum and aluminum alloys are chromate coated in order to retard corrosion; as a base for organic films including paints, plastics, and adhesives; and as a protective coating having a low electrical contact impedance. The materials are classified according to its coating thickness: Class 1; Class 2; Class 3; and Class 4. Chromate conversion coatings are normally applied by dipping: the coating may also be applied by inundation, spraying, roller coating, or by wipe-on techniques.

Keywords:

chromate, clear chromate, conversion coating, nonrinsed, passivation coating, rinsed, yellow chromate,, ICS Number Code 25.220.99 (Other treatments and coatings)

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