SILVAL

PRIMARY GRADE ALUMINIUM ALLOYS WITH HIGH RECYCLED CONTENT AND LOW CARBON FOOTPRINT

Raffmetal, European leader in the recycled aluminium sector for over 40 years, offers the innovative SILVAL range of primary aluminium alloys from recycling with performance equal to primary aluminium alloys produced from bauxite. The use of recycled aluminium, compared to production from bauxite, enables a reduction in the energy consumption and carbon footprint of our customers’ castings.

Raffmetal’s know-how allows the application of the most advanced technological solutions in the treatment and selection of scrap, in addition to the strict control of the production process that guarantees a constant high quality.

CARBON FOOTPRINT

OF DIFFERENT PRIMARY ALUMINIUM ALLOYS PRODUCTIONS*

*Data source: EA Circular Aluminium Action Plan (2020),
LCA Raffmetal and University of Siena,
Database Ecoinvent 3.6, Software SimaPro 9.1.1, Method CML-IA.

Primary alloys from bauxite (Cradle to Gate)
17.0
KgCO2eq/Kg Al
Global average
6.7
KgCO2eq/Kg Al
European average production
Primary alloys from recycling (Cradle to Gate)
0.48
KgCO2eq/Kg Al
SILVAL alloys 100% recycled
PROMOTING RECYCLING FOR LOW CARBON ALUMINUM

PRIMARY ALUMINIUM ALLOYS FROM RECYCLING

PRODUCTION PROCESS
SCRAP
SELECTION
MELTING
CONTINUOUS CASTING
INGOTS
The use of recycled raw material has important advantages:
  • ZERO use of mineral resources;
  • Use of circular raw material with ZERO impact of CARBON FOOTPRINT;
  • HIGH QUALITY products with LOW CARBON FOOTPRINT;
  • Total control of the entire SUPPLY CHAIN.

SILVAL RANGE

Alloy designation
Numerical
designation		 Chemical
symbols
42100 AlSi7Mg0.3
42200 AlSi7Mg0.6
42300 AlSi7 (Mg)
42400 AlSi7MnMg
43300 AlSi9Mg
43500 AlSi10MnMg
44000 AlSi11
44600 AlSi10Mn
45500 AlSi7Cu0.5Mg
45600 AlSi7Cu1Mg0.6
Chemical composition (%)
Si
Min Max
Fe
Min Max
Cu
Min Max
Mn
Min Max
Mg
Min Max
Cr
Max
Ni
Max
Zn
Max
Pb
Max
Sn
Max
Ti
Max
Other
Max
% Recycling Carbon footprint
- Cradle to Gate -
kg CO2eq/kg Al
6.5 7.5 - 0.15 - 0.03 - 0.10 0.30 0.45 0.03 0.03 0.07 0.03 0.03 0.18 0.03 80 1.89
6.5 7.5 - 0.15 - 0.03 - 0.10 0.50 0.70 0.03 0.03 0.07 0.03 0.03 0.18 0.03 80 1.95
6.5 7.5 - 0.15 - 0.03 - 0.10 0.10 0.30 0.03 0.03 0.07 0.03 0.03 0.18 0.03 80 1.86
6.5 7.5 - 0.20 - 0.03 0.35 0.75 0.15 0.45 0.05 0.05 0.03 0.05 0.05 0.15 0.05 90 1.32
9.0 10.0 - 0.15 - 0.03 - 0.10 0.30 0.45 0.03 0.03 0.07 0.03 0.03 0.15 0.03 80 2.15
9.0 11.5 - 0.20 - 0.03 0.40 0.80 0.15 0.60 0.05 0.05 0.07 0.05 0.05 0.15 0.03 90 1.58
10.0 11.8 - 0.15 - 0.03 - 0.10 - 0.45 0.03 0.03 0.07 0.03 0.03 0.15 0.03 80 2.20
9.5 11.5 0,10 0.20 - 0.03 - 0.15 - 0.15 0.05 0.05 0.03 0.05 0.05 0.15 0.05 80 2.23
6.5 7.5 - 0.25 0,20 0.70 - 0.15 0.20 0.45 0.03 0.03 0.07 0.03 0.03 0.20 0.03 100 0.48
6.5 7.5 - 0.15 0,8 1.6 - 0.10 0.50 0.70 0.03 0.03 0.07 0.03 0.03 0.18 0.03 80 1.93
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