ALUSIC^® special alloy

A metal matrix composite material.

Production

Centrifugally cast composite parts made up with a matrix in silicon-aluminum alloy and SiC reinforcement elements: Silicon Carbide particles.

Les Bronzes d'Industrie - Products cast by centrifugation - Special ALUSIC® alloy - Richard Mille luxury watch cases

Les Bronzes d'Industrie - Products cast by centrifugation - Special ALUSIC® alloy - Carter moto grand prix

Les Bronzes d'Industrie - Products cast by centrifugation - Special ALUSIC® alloy - Brake disc

Les Bronzes d'Industrie - Products cast by centrifugation - Special ALUSIC® alloy - Satellite part

Alloy grade properties of ALUSIC^®

Characteristics

SiC reinforcement ratio ranging from 30 to 60% (in volume) depending on the application
Perfect volume distribution of the SiC particles

Physical properties

Low density (d ≤ 2.95)
Very low expansion coefficient (alpha < 8x10^-6 with 60% SiC)
High thermal conductivity (> 150W/m/°K)

Mechanical properties

Very high stiffness (Proof stress > 185×10^-6 N/mm² with 60% SiC)
Exceptional wear resistance
Good mechanical properties under hot conditions (up to 300° C / 572° F)

Dimensions and shapes

4,5 m

Max length

6 m

Max outer diameter

The centrifugal casting process (or spun casting) is mainly suitable for cylindrical or hollow pieces (rings, tubes etc…). Conical shapes, several different diameters or flange(s) can be obtained on the “as cast” outer profile.
As we do not use cores, the inside diameter is cylindrical and is achieved by the quantity of liquid metal poured into the tooling.

Our extensive range of tooling (more than 1500 dies) enables us to reach the ideal cast sizes and shapes, consequently to propose the most economical solutions.