Engineering Materials
Aluminium bronze contains

92.5% aluminium, 4% copper, 2% nickel, and 1.5% Mg
10% aluminium and 90% copper
94% aluminium, 4% copper and 0.5% Mn, Mg, Si and Fe
90% magnesium and 9% aluminium with some copper

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Engineering Materials
Y-alloy contains

3.5 to 4.5% copper, 0.4 to 0.7% magnesium, 0.4 to 0.7% manganese and rest aluminium
4 to 4.5% magnesium, 3 to 4% copper and rest aluminium
3.5 to 4.5% copper, 1.2 to 1.7% manganese, 1.8 to 2.3% nickel, 0.6% each of silicon, magnesium and iron, and rest aluminium
5 to 6% tin, 2 to 3% copper and rest aluminium

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Engineering Materials
The temperature required for full annealing in hypereutectoid steel is

30° C to 50° C above lower critical temperature
30° C to 50° C above upper critical temperature
30° C to 50° C below upper critical temperature
30° C to 50° C below lower critical temperature

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