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Old designations for aluminum alloys: G97S, B19S, A56S

I am looking for the four digit aluminium alloy designations for some old designations in the following format eg G57S, B19S, A56S. Please could some suggest where I could find these - preferably on the Net.

Thank you.

Elise Leibnitz
- South Africa

A56S is an Alcan designation. Equivalent to 5056A or ISO R209 grade Al-Mg5 or DIN 1700 AlMg5 or DIN 17007 3.3355 or Italian grade P-AlMg5 or Japanese grade A5056. I rather suspect that the other two grades you mention are also Alcan, but have no record of them.

Bill Reynolds
consultant metallurgist
Ballarat, Victoria, Australia

It is this website's profoundly sad
duty to relate the news that Bill
passed away on Jan. 29, 2010.

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