Aluminum Ingot : Powder : Alcoa Aluminum Powder : Powder by Physical Properties

Powder by Physical Properties

All Alcoa aluminum powders are produced with an oxide coating.  Special coated and blended powders can be produced according to customer needs.

All Alcoa aluminum powders are produced with an oxide coating.  Special coated and blended powders can be produced according to customer needs.

Oxide Coating
Individual particles of all grades of Alcoa Aluminum Powder are coated with 0.1 to 1.0% aluminum oxide, depending on particle size.  This oxide layer is a result of atomizing practicies and cannot be controlled. Fine grades, which have a high total surface area because they contain many small particles, have a higher percentage of aluminum oxide by weight.  Coarse grades, which have a lower total surface area because they contain fewer but larger particles, contain less aluminum oxide.  For all Alcoa Aluminum Powder products, the percentage of aluminum is reported separately from the percentage of aluminum oxide.

Coated Powders
Alcoa produces several standard grades of coated non-dusting aluminum powders that have been specially processed to substantially reduce the dust hazards encountered during handling and processing.  The non-dusting characteristics of these powders give them a consistency similar to "damp sand." These powders are coated with 0.3 to 2 wt% isostearic acid or other lubricants.  Custom coated aluminum powders can also be produced for special customer applications.

Blended Powders
Several grades of powders have been produced by blending other powders such as copper, silicon, and magnesium.  Alcoa presently does not offer any standard blended powders, but we can supply custom blends to meet our customers' needs.



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Alcoa Aluminum Powder
Alcoa Primary Aluminum - North America
Rockdale, TX
United States
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Alcoa Aluminio S.A.
Alcoa Primary Aluminum - North America
Pocos de Caldas
Brasil
55 35 729 5535