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ER70S-1000

AWS A5.7 Class ERCuAl-A3

Washington Alloy Aluminum Bronze A-3 contains a higher Iron (Fe) content than Aluminum Bronze A-2. The higher Iron content gives “A-3” greater strength when joining aluminum bronze castings of similar composition. 

Applications:

“A-3” is often used for piston overlay and bearing surface applications which require higher strength, while maintaining good ductility.

Supporting Documentation:

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