LM25 CAST ALUMINIUM

Figures in brackets are ingot compositions where they differ from the casting, single figures are maxima. The time at temperature must be enough to ensure a reasonable stability of the properties, prior to mechanical testing. Anodizing A protective anodic film can be obtained by either the sulphuric or chromic acid process, but the grey opaque character of coatings of normal thickness precludes their colouring in light shades for decorative purposes. Click here to view all the property values for this datasheet as they were originally entered into MatWeb. It offers better machinability and mechanical properties than LM6. Strength at Elevated Temperatures The tensile properties of LM25 alloy at elevated temperatures are influenced by the condition heat treatment of the castings and the duration at the elevated temperature. Questions or comments about MatWeb?

Suitable where good corrosion resistance combined with thermal properties are required. Heat Treatment There are three heat treated conditions commonly used for this alloy: Resistance to corrosive attack by sea water and marine atmospheres is high. The time at temperature must be enough to ensure a reasonable stability of the properties, prior to mechanical testing. Very prolonged heating e. Strength and Hardness can be grately incresed by Heat Treatment. Consequently, LM25 finds application in the food, chemical, marine, electrical and many other industries and, above all, in road transport vehicles where it is used for wheels, cylinder blocks and heads, and other engine and body castings. This alloy conforms to BS

To see MatWeb’s complete data sheet for this material including material property data, metal compositions, material suppliers, etcplease click the button below. Click here to view all the property values for this datasheet as they were originally entered into MatWeb. Or if you don’t have an account with us yet, then click here to register. A alumihium high rate of tool wear may be expected. Material supplied as standard 7kg aluminium ingot. Corrosion Resistance Resistance to corrosive attack by sea water and marine atmospheres is high.

Technical Data

Suitable where high mechanical properties are desired in fairly intricate sand and chill castings. Questions or comments about MatWeb? One of the two most widely used alloys for all types of die-castings. Same characteristics as LM 28 but with still lower coefficient of thermal expansion than LM Piston alloy with lower coefficient of thermal expansion than LM Suitable where good corrosion resistance combined with thermal properties are required. A versatile sand and chill cast alloy introduced as an alternative to LM 4 and LM It offers better machinability and mechanical properties than LM6.

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This alloy conforms to BS Used for chill castings requiring good foundry characteristics and good ductility. Subscribe to Premium Services Searches: The most versatile of the alloys, has very good casting characteristics and isused for a very wide range of applications.

Mainly used for sand and chill castings requiring high strength and shock resistance. Those in heavier type are minimum specification values. It has good wear resistance properties and machinability. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. Mainly used for pressure die casting.

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For unlined die cast cylinder blocks with low expansion and excellent wear resistance. LM25 may be superior for castings, particularly in chill moulds, which are difficult to make to the required standard of soundness. This alloy can witstand higher termperatures and loads. The tensile properties of LM25 alloy at elevated temperatures are influenced by the condition heat treatment of the castings and the duration at the elevated temperature.

A protective anodic film can be obtained by either the sulphuric or chromic acid process, but the grey opaque character of coatings of normal thickness precludes their colouring in light shades for decorative purposes. LM25 alloy is mainly used where good mechanical properties are required in castings of a shape or dimensions requiring an alloy of excellent castability in order to achieve the desired standard of soundness.

Suitable for large, intricate and thin walled castings in all types of moulds, also used where corrosion resistance or ductiity is required.

Aluminum LM25 TF (T6) Temper, Sand Cast

Generally similar to LM 4M in character and application but better aluuminium and proof strength. The alloy is also used where resistance to corrosion is an important consideration, particularly where high strength is also required. We also ask that you refer to MatWeb’s terms of use regarding this information.

Consequently, LM25 finds application in the food, chemical, marine, electrical and many other industries and, above all, in road transport vehicles where it is used for wheels, cylinder blocks and heads, and other engine and body castings.

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The heat-treated alloy has fairly good machining properties, but tools should preferably be of high speed steel and must be kept sharp. Aluminum Alloy and its Recommended end use. Property Data This page displays only the text of a material data sheet. Available Properties Density, AA This alloy use requires special foundry technique.

If Titanium alone is used as a grain refiner, the acst present shall not be less than 0. The contents, results, and technical data from this site may not be reproduced either electronically, photographically or substantively without permission from MatWeb, LLC.

We appreciate your input. Castings are standardized in the as cast M condition, the precipitation treated TE condition, the solution treated and stabilized TB7 condition and the fully heat aluminiuum TF condition. Login to see your most recently viewed materials here. The time at temperature must be enough to ensure a reasonable stability of the properties, prior to mechanical testing.

Heat Treatment There are three heat treated conditions commonly used for this alloy: Liberal cutting lubricant should be employed. Suitable for Sand and Chill Castings requiring maximul corrosion resistance i.

Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. LM25 is a corrosion resistant aluminum casting alloy with casg durability and strength.

Figures in brackets are ingot compositions where they differ from the casting, single figures are maxima.

Strength and Hardness can be grately incresed by Heat Treatment. Strength at Elevated Temperatures The tensile properties of LM25 alloy at elevated temperatures are influenced by the condition heat treatment of the castings and the duration at the elevated temperature.

Resistance to corrosive attack by sea water and marine atmospheres is high. Used for allplications especially low pressure die casting requiring the characteristics of LM 6 with higher tensile strength after heat treatment.