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MIL-W-22248 Revision A, September 29, 1971
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WELDMENTS, ALUMINUM AND ALUMINUM ALLOY
Includes all amendments and changes through Amendment 2, June 6, 1985
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This specification covers the general requirements for aluminum and aluminum alloy weldments fabricated by the inert-gas metal-arc and inert-gas tungsten-arc welding processes as defined in AWS A3.0.

Weldments shall be one of the following classes, as specified (see 6.1 and 6.2):

Class 1

Class 2

Class 3

Class 4