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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

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Section from experimental austenitic stainless steel superheated tube

Section from experimental austenitic stainless steel superheated tube

1933
Aluminium alloy channel ('A' alloy, Zn 20%, Cu 3%)

Aluminium alloy channel ('A' alloy, Zn 20%, Cu 3%)

Sound ingot of 'Y' alloy aluminium produced by pre-solidification (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%)

Aluminium alloy sheet ('Y' alloy Cu 4%, Ni2%, Mg 1.5%)

Aluminium alloy airship channel and girder bracings ('E' alloy, Zn 20%, Cu 2.5%, Mg 0.5%)

Aluminium alloy airship channel and girder bracings ('E' alloy, Zn 20%, Cu 2.5%, Mg 0.5%)

Early piston 'Y' alloy aluminium (Cu 4%, Ni 2%, Mg 1.5%)

Early piston 'Y' alloy aluminium (Cu 4%, Ni 2%, Mg 1.5%)

Aluminium alloy rolled bar - 3 samples ('Y' alloy, Cu 4%, Ni 2, Mg 1.5%)

Aluminium alloy rolled bar - 3 samples ('Y' alloy, Cu 4%, Ni 2, Mg 1.5%)

Aluminium alloy wire - 2 samples ('A' alloy, Zn 20%, Cu 3%)

Aluminium alloy wire - 2 samples ('A' alloy, Zn 20%, Cu 3%)