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From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Tables detailing the mechanical properties of Aluminium-Magnesium and Magnesium alloys.

Identifier  ExFiles\Box 142\2\  scan0493
Date  5th November 1940 guessed
  
"METALS"
by Sir Harold CARPENTER &
J.M.ROBERTSON
(Vol.II).
1200

Table 190 (561) page 1372.

Mechanical Properties of Annealed Sheets of Aluminium-Magnesium Alloys

| Magnesium per cent. | Yield-point tons per sq.in. | Tensile strength, tons per sq.in. | Elongation per cent. |
|---------------------|---------------------------|---------------------------------|----------------------|
| 1 | 6.0 | 9.5 | 29.0 |
| 2 | 6.4 | 11.5 | 25.0 |
| 3 | 6.9 | 13.6 | 24.0 |
| 4 | 7.6 | 15.0 | 24.0 |
| 5 | 8.3 | 17.1 | 22.0 |
| 6 | 9.6 | 20.0 | 22.0 |
| 7 | 10.7 | 22.5 | 21.0 |
| 8 | 12.2 | 24.5 | 21.0 |
| 9 | 13.5 | 25.0 | 20.0 |

Table 239 - page 1440.
Mechanical Properties.
(Magnesium)

| Condition | Tensile strength tons per sq.in. | Elongation per cent. on 2 ins. | Reduction in area | Brinell hardness. |
|-------------|----------------------------------|--------------------------------|-------------------|-------------------|
| Sand-cast | 5.8 | 6 | 6 | 30 |
| Extruded | 12.5 | 8 | 8 | 35 |
| Rolled | 11 | 4 | 5 | 40 |
| Annealed | 11 | 5 | 6 | 33 |
  
  


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