General Information
LM25 aluminium casting alloy is a prevalent choice for a broad array of applications, particularly where robust mechanical properties are imperative. Renowned for its remarkable resistance to corrosion and high strength characteristics, LM25 is favoured in various commercial aluminium casting uses. This alloy shows exceptional responsiveness to heat treatment, offering versatility in application. With availability in four distinct conditions, including as-cast and partially heat-treated, LM25 expands its utility across diverse industries. From automotive components to aerospace parts, LM25 aluminium casting alloy ensures reliability and performance in demanding environments, making it a highly popular solution for engineering needs.
Typical Applications
LM25 castings are widely employed across industries for their exceptional mechanical properties and corrosion resistance. Common applications include automotive components such as engine blocks, cylinder heads, and transmission cases, where the alloy’s high strength and durability are crucial. In the aerospace sector, LM25 castings are utilized for manufacturing aircraft parts like structural components and engine mounts, benefiting from their lightweight nature and corrosion resistance. Additionally, they find use in marine applications for various marine engine parts and pump housings due to their resistance to saltwater corrosion. Their versatility extends to the electrical industry for housings and connectors, ensuring reliable performance in diverse environments. With their broad range of applications, LM25 castings continue to be a preferred choice for industries requiring robust and dependable components.
LM25 Chemical Composition
| Element | Percentage (%) |
|---|---|
| Copper | 0.2 Max |
| Zinc | 0.1 Max |
| Magnesium | 0.2-0.6 |
| Lead | 0.1 Max |
| Silicon | 6.6-7.5 |
| Tin | 0.05 Max |
| Iron | 0.5 Max |
| Titanium | 0.2 Max |
| Nickel | 0.1 Max |
| Other (Each/Total) | 0.05 Max/0.5 Max |
| Aluminium | 90.5-91.9 |
LM25 Mechanical Properties
| 0.2% Proof Stress | 80-100 |
|---|---|
| Tensile Strength | 130-150 |
| Elongation | 2% |
| Brinell Hardness | 55-65 |
| Endurance Limit | 70-100 |
| Modulous Of Elasticity | 71 |