Recycling alloy with high ductility

You need a recycling alloy for high pressure die cast components with high ductility and energy absorption capability – we have it: trimal®-04

The trimal®-04 (AlSi10MnMg) alloy is a recycling alloy with reduced iron content, which makes it highly ductile in its as-cast state. In addition, targeted heat treatment gives the material a good energy absorption capability. The alloy is produced at the TRIMET Aluminium SE recycling plants in Gelsenkirchen and Harzgerode using selected scrap.

The alloy is produced at the TRIMET Aluminium SE recycling plants in Gelsenkirchen and Harzgerode using selected scrap.

The outstanding castability and mold-filling behavior of the trimal®-04 alloy is primarily due to a silicon content of approx. 10% by weight. Due to the reduced iron content, a defined addition of manganese reliably reduces the tendency to stick to the die. The strength and hardness are controlled by the magnesium content. In addition to the above-mentioned measures, a refinement of the eutectic silicon with strontium makes the material more ductile and gives it a good energy absorption capability in its as-cast state

Chemical composition

The following table shows a reference analysis for the described material in weight percent. Customer specifications may vary.

% Si Fe Cu Mn Mg Ni Zn Pb Ti Sr a.E. a.G.
Min. 9.00 x x 0.4 0.15 x       modified    
Max. 11.00 0.3 0.1 0.8 0.30 0.10 0.10 0.10 0.15 0.05 0.2  

Mechanical properties

The following mechanical properties were determined on oil pans. The elongation figures are related to the bottom area with a medium wall thickness of 2.5 mm. The hardness was measured in the flange (wall thickness of 6.5 mm). Partial T0 heat treatment in the bottom area is possible to increase the ductility. The figures should be viewed as reference values for this alloy using the high pressure die casting  rocess.

Temper Yield strength Rp0.2 MPa Tensile strength Rm MPa Elongation A % Hardness HB
F > 130 > 290 > 7 > 75
T0 > 85 > 190 > 10 > 75


trimal®-04 is suitable for die casting parts which have to possess good elongation and energy absorption capabilities in the as-cast state. Possible applications include ductile oil pans, covers, or housing components with similar requirements.

trimal®-04 product information sheet

Download the product information sheet for our trimal®-04 die casting alloy here.

Contact us

Do you have any questions or would you like more information?

TRIMET Aluminium SE

Aluminiumallee 1
D-45356 Essen

+49 201 366366