LM6 Aluminium Alloy
Pressure diecasting Aluminium alloy.LM 6 can be used as a
pressure diecasting alloy but is also suitable for both gravity and
low pressure casting techniques. The alloy in this
designation conforms to BS 1490 and similar alloy chemistries
are used worldwide see below for guidance.
LM 6 is a high purity alloy, which is used in castings where thinner
more intricate sections are required.Particularly, complex castings
with large surface areas. The alloy is of medium strength with
excellent ductility but suffers a rapid loss of properties
at elevated service temperatures. At around 2500C the
properties of this alloy become very poor.
This alloy possesses high corrosion resistance and excellent
castability making it suitable for marine fittings, water manifolds
and road transport applications. This corrosion resistance
can be further enhanced by anodising, which may result in a
variable grey to brown coloured film on the castings surface.
LM 6 is a high Silicon Aluminium alloy which can be
rather difficult to machine. Alloys of this type tend to
darg when machined, causing rapid tool wear and
therefore carbide tools with large rake angles should
be employed with adequate cutting fluids.
This alloy is particularly suitable for castings that are to be welded.
This alloy is similar to the following national specifications: