Gravity die casting aluminium
- This transformation process makes it possible to reproduce pieces of complex shapes with finely ribbed thin walls
- Shell foundry parts require a high degree of finishing which includes a series of operations such as sawing of the jet and the pockets, grinding of the joint plane, heat treatment...
- It is a fast and economical manufacturing process for the production in small and medium series of light alloy parts
- One of these main advantages is to have a high repeatability and a high tool life
Characteristics of the aluminium used in gravity die casting
- At equal volume, aluminum is 30% lighter than steel
- Aluminum is an excellent conductor of temperature, 1.8 times better than copper
- Some cast aluminum alloys can undergo a heat treatment that improves the mechanical characteristics
- Recycling aluminum is easy and economical, environmentally friendly
The various aluminum alloys used in gravity die casting
Designation according to European Standard EN 1706 | Mechanical characteristics1 N/mm² = 1MPa | |||||
Density | State | Rm N/mm² | Rp 0.2 N/mm2 | A% | HB | |
ENAC-21000 Mini AICu4MgTi |
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EN 1706 Maxi AU4GT 1ère fusion |
T4 | 320 | 200 | 8 | 95 | 2.80 |
ENAC-41000 Mini AlSi2MgTi |
F | 170 | 70 | 5 | 50 | |
EN 1706 Maxi AS2GT 1ère fusion |
T6 | 260 | 180 | 5 | 85 | 2.70 |
ENAC-42000 Mini AlSi7Mg |
F | 170 | 90 | 2.5 | 55 | |
EN 1706 Maxi AS7G 2ème fusion |
T6 | 260 | 220 | 1 | 90 | 2.67 |
ENAC-42100 Mini AlSi7Mg0.3 |
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EN 1706 Maxi AS7G0.3 1ère fusion |
T6 | 290 | 210 | 4 | 90 | 2.67 |
ENAC-42100 Mini 67 XB (Pièces fines) |
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EN 1706 Maxi AS7G0.3 1ère fusion |
T6 | 300 | 215 | 17.5 | 90 | 2.67 |
ENAC-42200 Mini AISi7Mg0.6 |
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EN 1706 Maxi AS7G0.6 1ère fusion |
T6 | 320 | 240 | 3 | 100 | 2.67 |
ENAC-43100 Mini AISi10Mg |
F | 180 | 90 | 2.5 | 55 | |
EN 1706 Maxi AS10G 2ème fusion |
T6 | 260 | 220 | 1 | 90 | 2.66 |
ENAC-44200 Mini AISi12(b) |
F | 170 | 80 | 5 | 55 | |
EN 1706 Maxi AS12G 2ème fusion |
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ENAC-44200 Mini 43 X |
F | 150 | 80 | 4 | 60 | |
EN 1706 Maxi AS12 1ère fusion |
2.65 | |||||
ENAC-51100 Mini AIMg3 (pièces d'aspect) |
F | 150 | 70 | 5 | 50 | |
EN 1706 Maxi AG3T 1ère fusion |
2.67 |
Propriétés des alliages d'aluminium utilisés en fonderie coquille
Désignation selon Norme Européene EN 1706 | Flowa-bility | Machina-bility | Welda-bility | Polishing | Chroming | Plating | Tinning | Paint (20 to 30 microns) | Silvering Gilding |
Anodi- sation |
Corrosion resistance |
Filed of application |
EN AC-43400 - AlSi10Mg(Fe) AS10G | A | B | C | B/C | B | B | C | B | B | E | C | Medium-sized parts, general mechanics |
EN AC-43500 - AlSi10MnMg | A | B/C | B | D | B | B | C | B | B | E | B | Medium-sized parts, general mechanics |
61 D1 (AS10G) | D | B | B | C | B | B | E | Security, automotive, household appliances | ||||
EN AC-44300 - AlSi12(Fe) AS12 | A | C | D | D | B | B | C | B | B | E | C | Very complex parts, general mechanics |
EN AC-46000 - AlSi9Cu3(Fe) AS9U3 | B | B | F | C | B | B | C | B | B | E | D | Very Large Parts, Automotive, Household Appliances |
EN AC-46200 - AlSi8Cu3 | B | B | B | C | B | B | C | B | B | E | D | Very Large Parts, Automotive, Household Appliances |
EN AC-46500 - AlSi9Cu3(Fe)(Zn) | B | B | F | C | B | B | C | B | B | E | D | Very Large Parts, Automotive, Household Appliances |
EN AC-47100 - AlSi12Cu1(Fe) AS12U | A | C | F | C | B | B | C | B | B | E | C | Medium and large series, automobile, general mechanics |
Aptitudes : A = Excellent, B = Good, C = Fair, D = Poor, E = Not recommended, F = Inappropriate
The anodization of aluminum alloy castings can be carried out on alloys with a% Si content of <4%. Aluminum alloys have better resistance to corrosion if the% of Cu is <1% and the% of Zn is <0.5%
M.C.T. Can not be in any way responsible for the exploitation of the indicative data of this commercial document