Sand Casting
Great flexibility in shapes, dimensions, and volumes.
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Material Guide
Characteristics of aluminum alloys
Main grades used and their properties in aluminum foundry.
End-to-end aluminum expertise
From mold preparation to final inspection, each step is controlled to ensure the quality of your parts.
Gravity Die Casting
A precise process for repetitive parts and fine finishes.
Low-Pressure Die Casting
Consistent filling for excellent material integrity.
Core Making
Complex internal shapes, cavities, and technical passages.
Impregnation
Porosity reduction to ensure sealing integrity.
Heat Treatments
Mechanical properties adapted to your specifications.
Machining
Controlled dimensional precision, surface finishes, and final touches.
Quality Controls
Dimensional and non-destructive testing according to requirements.
1
Foundry Aluminum Alloys
| Grade | EN Reference | Simplified Composition | Suitable Processes | Main Characteristics | Typical Applications |
|---|---|---|---|---|---|
AlSi7Mg0,3 | EN AC-42100 | Al-Si7-Mg0,3 | Gravity die casting, low-pressure die casting, sand casting | Very good compromise between mechanical strength, fluidity, and machinability | Mechanical parts, casings, supports |
AlSi10Mg | EN AC-43000 | Al-Si10-Mg | Low-pressure die casting, permanent mold casting, sand casting | Excellent fluidity, good corrosion resistance, and good mechanical properties | Casing, covers, structural parts |
AlSi12 | EN AC-44100 | Al-Si12 | Sand casting, permanent mold casting | Very good fluidity, good dimensional stability | Complex parts, pumps, compressors |
AlSi9Cu3(Fe) | EN AC-46000 | Al-Si9-Cu3 | Permanent mold casting, low-pressure die casting | Good mechanical strength and hot strength | Engine parts, pump bodies |
AlMg5 | EN AC-51200 | Al-Mg5 | Sand casting, permanent mold casting | Excellent corrosion resistance, good weldability | Marine environment, hydraulics |
AlCu4Ti | EN AC-21100 | Al-Cu4-Ti | Permanent mold casting, sand casting | High mechanical strength, good stability | Structural parts, stressed parts |
2
Indicative Mechanical Characteristics (as-cast condition)
| Grade | Rm (MPa) | Rp0.2 (MPa) | Elongation A (%) | Hardness (HB) | Density (kg/dm³) |
|---|---|---|---|---|---|
AlSi7Mg0,3 | 190 - 230 | 110 - 150 | 2 - 4 | 60 - 75 | 2,67 |
AlSi10Mg | 210 - 260 | 120 - 160 | 2 - 4 | 65 - 80 | 2,67 |
AlSi12 | 180 - 220 | 90 - 130 | 1,5 - 3 | 55 - 70 | 2,67 |
AlSi9Cu3(Fe) | 240 - 290 | 130 - 190 | 2 - 4 | 75 - 95 | 2,70 |
AlMg5 | 160 - 200 | 80 - 120 | 3 - 6 | 55 - 70 | 2,66 |
AlCu4Ti | 260 - 310 | 140 - 190 | 2 - 4 | 80 - 100 | 2,75 |
Indicative values may vary depending on thickness, process, and heat treatment.
3
Physical Characteristics
| Grade | Thermal Conductivity (W/m.K) | Coefficient of Thermal Expansion (10⁻⁶/K) | Modulus of Elasticity (GPa) | Melting Temperature (°C) |
|---|---|---|---|---|
AlSi7Mg0,3 | 130 - 150 | 20,5 - 22,5 | 70 - 73 | 575 - 630 |
AlSi10Mg | 125 - 145 | 20,5 - 22,5 | 69 - 72 | 575 - 630 |
AlSi12 | 120 - 140 | 20,5 - 22,5 | 68 - 72 | 575 - 630 |
AlSi9Cu3(Fe) | 110 - 130 | 20,5 - 22,5 | 71 - 74 | 570 - 620 |
AlMg5 | 130 - 150 | 22,2 - 24,0 | 69 - 72 | 575 - 630 |
AlCu4Ti | 110 - 130 | 20,5 - 22,5 | 71 - 74 | 540 - 630 |
Loiselet Aluminium
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