06 February 2012
| Chemical Composition | LM2 | LM6 | LM20 | LM24 | Pyral |
| Copper | 0.7 - 2.5 | 0.1 Max | 0.4 Max | 3.0 - 4.0 | 0.2 Max |
| Magnesium | 0.3 Max | 0.1 Max | 0.2 Max | 0.3 Max | 0.1 Max |
| Silicon | 9.0 - 11.5 | 10.0 - 13.0 | 10.0 - 13.0 | 7.5 - 9.5 | 0.5 Max |
| Iron | 1.0 Max | 0.6 Max | 1.0 Max | 1.2 Max | 0.5 - 0.8 |
| Manganese | 0.5 Max | 0.5 Max | 0.5 Max | 0.5 Max | 2.25 - 2.75 |
| Nickel | 0.5 Max | 0.1 Max | 0.1 Max | 0.5 Max | 2.25 - 2.75 |
| Zinc | 2.0 Max | 0.1 Max | 0.2 Max | 3.0 Max | 0.1 Max |
| Lead | 0.3 Max | 0.1 Max | 0.1 Max | 0.3 Max | 0.1 Max |
| Tin | 0.2 Max | 0.05 Max | 0.1 Max | 0.2 Max | 0.05 Max |
| Titanium | 0.2 Max | 0.2 Max | 0.2 Max | 0.2 Max | 0.1 - 0.2 |
| Aluminium | Remainder | Remainder | Remainder | Remainder | Remainder |