Technical Information

Technical Information

This web-presence details the chemical, mechanical and physical properties of the aluminium casting alloys
from RHEINFELDEN ALLOYS. They can be compared using tables.
Advice is also provided on how to work with our casting alloys in the melt process and how to gain
optimum pouring results.
Various stages of processing are gone into in depth:

• Grain refinement
• Modification
• Quality of melt
• Refining the melts
• Melt testing
• Artificial ageing, heat treatment and self-ageing
• Heat treatment for high pressure die castings
• Fatigue strength
• Corrosion and corrosion protection
• Producing welded designs
• Welding high pressure die castings
• Machining

This information has been updated by our customer support staff.
We consider this a very important part of the manual as it isn’t just the quality of casting alloy used
which is key to successful applications, the right way of working before, during and after pouring is also
of great importance. More questions will certainly arise during your work and as new developments
enter the market. The RHEINFELDEN ALLOYS foundry specialists will happily answer these.
The mechanical properties listed are based on in-house measurements of our
alloys and most exceed the values stipulated in the EN 1706 European standard.

The mechanical values were measured for sand and gravity die castings on separately cast test pieces
and on test pieces taken from the castings; for high pressure die casting, values were only measured on
test pieces. The ranges of mechanical properties stated indicate the performance of the alloys and the
amount of scatter depending on material and pouring. The respective maximum value is for the designer’s
information. These values can also be reached in the casting or sub-areas with favourable casting
conditions and corresponding casting technology work. The figures provided in brackets are minimum
values in the casting with wall thicknesses of up to 20 mm. The properties of the aluminium casting
alloys are affected by metal impurity, especially by increased levels of iron.

The primary aluminium casting alloys supplied by RHEINFELDEN ALLOYS have an iron content of
less than 0.15 % unless higher Fe contents are needed. The analysis limits in the alloys we supply are
precisely defined.

Please use a device with 640px min. for an appropriate presentation of the product’s distinguishing characteristics.