Production:

Raw materials

The raw material used by Rametal in making aluminium alloys come from all over Europe. It is comprised of scrap collected from aluminium processing companies and metal items that have reached the end of their useful life.

On delivery, the aluminium is sorted and classified according to rigorous international standards.

As an additional safety measure, rigorous tests and inspections are carried out on the incoming metal, throughout the manufacturing process and prior to delivery of the end product.

Rametal purchases the following raw materials:
- Aluminium turnings
- Taint Tabor
- Tense
- Twitch
- New sheet
- Offset
- Profiles
- Mixed Metals
- Silicon metal


Production Process

Rametal produces a variety of aluminium alloys in bars or in semisferes. The aluminium scrap recycling process starts with the very important stage of rigorous selection to eliminate undesired components, such as tailing and iron.

After sorting, the material is fed automatically into a rotary furnace and melted down under salt, in a mixture of sodium chloride to prevent oxidation.

When the molten metal is ready to move in to the holding furnaces, it undergoes a corrective treatment including degassing, surface cleaning and filtration.

When it meets the quality specification, the metal is convoyed to the continuous casting plant from which it comes out in the form of bars or sferes.


Products

Alloy (1) Specification DIN 1725 norm Cu Zn Si Fe Ti Ni Mn Mg Pb Sn
  Pressure mould alloys                    
226 GD-AlSi9Cu3  2.0 - 3.5 1.2 8.0 - 11.0 1.2 0.15 0.3 0.1 - 0.5 0.1 - 0.5 0.2 0.1
GBD-AlSi9Cu3   1.2   1.0     0.1 - 0.4      
GD-AlSi9Cu3 (2)   3.0   1.2     0.1 - 0.5      
GD-AlSi9cCu3 (2)   0.7   1.2     0.1 - 0.5      
231 GD-AlSi12 (Cu)  1.2 0.5 10.5 - 13.5 1.2 0.15 0.2 0.1 - 0.5 0.4 0.2 0.1
GBD-AlSi12 (Cu)  1.0     1.0     0.1 - 0.4      
GD-AlSi12 (Cu) (2) 0.4     1.2     0.1 - 0.5      
230 GD-AlSi12 0.10 0.1 10.5 - 13.5 1.0 0.15 (3) 0.001 - 0.4 0.05 (3) (3)
GBD-AlSi12 0.08 0.10   0.8            
239 GD-AlSi10Mg 0.10 0.1 9.0 - 11.0 1.0 0.15 (3) 0.001 - 0.4 0.20 - 0.50 (3) (3)
GBD-AlSi10Mg 0.08 0.10   0.8            


Alloy (1) Specification DIN 1725 norm Cu Zn Si Fe Ti Ni Mn Mg Pb Sn
  Sand and shell mould alloys                    
225 G-/GK-AlSi6Cu4 3.0 - 5.0 2.0 5.0 - 7.5 1.0 0.15 0.3 0.1 - 0.6 0.1 - 0.5 0.3 0.1
  GB-AlSi6Cu4                    
226 A G-/GK-AlSi9Cu3 2.0 - 3.5 1.2 8.0 - 11.0 0.8 0.15 0.3 0.1 - 0.5 0.1 - 0.5 0.2 0.1
  GB-AlSiCu3     0.80              
231 A G-/GK-AlSi12(Cu) 1.0 0.5 10.5 - 13.5 0.8 0.15 0.2 0.1 - 0.5 0.3 0.2 0.1
  GB-AlSi12(Cu)     0.80              
233 G-/GK-AlSi12(Cu) 0.3 0.3 9.0 - 11.0 0.6 0.15 0.1 0.1 - 0.4 0.20 - 0.50 (3) (3)
  GB-AlSi12(Cu)     0.60              
230 A G-/GK-AlSi12 0.05 0.1 10.5 - 13.5 0.5 0.15 (3) 0.001 - 0.4 0.05 (3) (3)
  GB-AlSi12 0.03 0.10   0.3          
239 A G-/GK-AlSi10Mg 0.05 0.1 9.0 - 11.0 0.5 0.15 (3) 0.001 - 0.4 0.20 - 0.50 (3) (3)
  GB-AlSi10Mg 0.03 0.10   0.3            
260 G-/GK-AlSi12CuNiMg (2) 0.8 - 1.5 0.2 11.0 - 13.0 0.7 0.2 0.8 - 1.3 0.2 0.8 - 1.3 (3) (3)
  GB-AlSi12CuNiMg                    


(1) Normal alloys in DIN 1725.
(2) Not standart alloys.
(3) Each element max 0.05%, in total 0.15 %.

If you need a specific alloy, don't hesitate to contact us.