Specimens of aluminium alloys produced at the National Physical Laboratory
Specimens of aluminium alloys produced at the National Physical Laboratory as part of the Light Alloys Research Programme, c. 1910-20
Aluminium alloy channel ('A' alloy, Zn 20%, Cu 3%)
Aluminium alloy airship channel and girder bracings ('E' alloy, Zn 20%, Cu 2.5%, Mg 0.5%)
Aluminium alloy rolled bar - 3 samples ('Y' alloy, Cu 4%, Ni 2, Mg 1.5%)
Sound ingot of 'Y' alloy aluminium produced by pre-solidification (Cu 4%, Ni 2%, Mg 1.5%)
Aluminium alloy sheet ('Y' alloy Cu 4%, Ni2%, Mg 1.5%)
Early piston 'Y' alloy aluminium (Cu 4%, Ni 2%, Mg 1.5%)
Section from experimental austenitic stainless steel superheated tube
1933