Should Fluoide be in Deoxidizer for 2219 Aluminum?

Letter 1004

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Has anyone had any trouble using a deoxidizer with fluoride as an ingredient on 2219 Aluminum.

Garry Pickett boeing

We are the largest user of 2219Al in the country. We make the External Tank for the Space Shuttle. We use flouride in our deoxidizers successdully for many years.

Michael Campbell, Senior Materials Engineer
Lockheed Martin Manned Space Systems

Sir, please help me in providing information regarding removal of copper from aluminium alloy 2219 from its surface.

Thanking u sir,

Ravi Kumar
- Chennai, India

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