FabDigit

Aluminum AlMgSc vs AlSi7Mg0.6 vs AlSi9Cu3 vs A2024-RAM2

Benchmark · 4 materials

Side-by-side benchmark of 4 aluminum grades.

AlMgSc vs AlSi7Mg0.6 and 2 more: properties

AlMgScAlSi7Mg0.6AlSi9Cu3A2024-RAM2

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

70 GPa10.2 Msi
72 GPa10.4 Msi
75 GPa10.9 Msi
78 GPa11.3 Msi

Shear Modulus

26.5 GPa3.8 Msi
27 GPa3.9 Msi
28 GPa4.1 Msi
29 GPa4.2 Msi

Bulk Modulus

69 GPa10 Msi
71 GPa10.3 Msi
73 GPa10.6 Msi
76 GPa11 Msi

Tensile Strength (Ultimate)

500 MPa72.5 ksi
355 MPa51.5 ksi
300 MPa43.5 ksi
500 MPa72.5 ksi

Yield Strength (0.2% offset)

460 MPa66.7 ksi
285 MPa41.3 ksi
165 MPa23.9 ksi
430 MPa62.4 ksi

Elongation at Break

12%
10%
2%
6%

Compressive Strength

470 MPa68.2 ksi
290 MPa42.1 ksi
440 MPa63.8 ksi

Shear Strength

295 MPa42.8 ksi
230 MPa33.4 ksi
190 MPa27.6 ksi
295 MPa42.8 ksi

Fatigue Strength (Endurance Limit)

160 MPa23.2 ksi
125 MPa18.1 ksi
95 MPa13.8 ksi
130 MPa18.9 ksi

Fracture Toughness (K_IC)

33 MPa·√m30 ksi·√in
24 MPa·√m21.8 ksi·√in
16 MPa·√m14.6 ksi·√in
22 MPa·√m20 ksi·√in

Hardness, Brinell

140 HB
105 HB
85 HB
140 HB

Hardness, Rockwell B

80 HRB
63 HRB
82 HRB

Hardness, Vickers

150 HV
115 HV
90 HV
150 HV

Charpy V-Notch Impact (RT)

5 J3.7 ft·lbf
2 J1.5 ft·lbf

Same in both: Poisson's Ratio 0.33

Physical

Density and transition temperatures.

Density

2.67 g/cm³0.1 lb/in³
2.67 g/cm³0.1 lb/in³
2.75 g/cm³0.1 lb/in³
2.78 g/cm³0.1 lb/in³

Melting Point (Solidus)

585°C1,085 °F
555°C1,031 °F
515°C959 °F
502°C936 °F

Liquidus Temperature

645°C1,193 °F
613°C1,135 °F
595°C1,103 °F
638°C1,180 °F

Thermal

How each material carries heat and how hot it can run.

Thermal Conductivity

110 W/m·K63.6 BTU/hr·ft·°F
155 W/m·K89.6 BTU/hr·ft·°F
110 W/m·K63.6 BTU/hr·ft·°F
120 W/m·K69.3 BTU/hr·ft·°F

Specific Heat Capacity

900 J/kg·K0.21 BTU/lb·°F
900 J/kg·K0.21 BTU/lb·°F
880 J/kg·K0.21 BTU/lb·°F
875 J/kg·K0.21 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

23.5 µm/m·K13.1 µin/in·°F
21.5 µm/m·K11.9 µin/in·°F
21 µm/m·K11.7 µin/in·°F
21.5 µm/m·K11.9 µin/in·°F

Latent Heat of Fusion

390 J/g168 BTU/lb
389 J/g167 BTU/lb
390 J/g168 BTU/lb
390 J/g168 BTU/lb

Min Service Temperature

-196°C-321 °F
-196°C-321 °F
-100°C-148 °F
-196°C-321 °F

Same in both: Max Service Temperature (continuous) 150°C302 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

28 % IACS
39 % IACS
24 % IACS
32 % IACS

Electrical Resistivity

6.2×10⁻⁸ Ω·m2.44 µΩ·in
4.4×10⁻⁸ Ω·m1.73 µΩ·in
7.2×10⁻⁸ Ω·m2.83 µΩ·in
5.4×10⁻⁸ Ω·m2.13 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.87 V
-0.83 V
-0.78 V
-0.78 V

Corrosion Resistance

68 / 100
58 / 100
38 / 100
33 / 100

Manufacturability

FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.

Machinability

55 / 100
65 / 100
62 / 100
55 / 100

Machinability Rating (AISI 1212 = 100 %)

110%
70%
70%
130%

Weldability

85 / 100
65 / 100
20 / 100
25 / 100

Formability (cold)

45 / 100
20 / 100
8 / 100
15 / 100

Castability

50 / 100
92 / 100
95 / 100

Brazeability / Solderability

30 / 100
40 / 100
20 / 100
15 / 100

Polishability

60 / 100
55 / 100
40 / 100
55 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

260 MJ/kg111,780 BTU/lb
215 MJ/kg92,433 BTU/lb
190 MJ/kg81,685 BTU/lb
260 MJ/kg111,780 BTU/lb

Embodied Carbon (primary production)

24 kg CO₂/kg
13.5 kg CO₂/kg
12.5 kg CO₂/kg
15 kg CO₂/kg

Embodied Water

1,200 L/kg144 gal/lb
1,150 L/kg138 gal/lb
1,200 L/kg144 gal/lb
1,200 L/kg144 gal/lb

Typical Recycled Content

5%
10%
85%
5%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

187 kN·m/kg
133 kN·m/kg
109 kN·m/kg
180 kN·m/kg

Specific Stiffness (E / density)

26.2 MN·m/kg
27 MN·m/kg
27.3 MN·m/kg
28.1 MN·m/kg

Modulus of Resilience

1,511 kJ/m³
564 kJ/m³
182 kJ/m³
1,185 kJ/m³

Thermal Diffusivity

45.8 mm²/s
64.5 mm²/s
45.5 mm²/s
49.3 mm²/s

Thermal Shock Resistance Index

33
36
21
36

Strength versus weight

Yield strength against density for every aluminum grade in the FabDigit library; the compared grades are highlighted. Up and left is stronger for its weight.

20501002005002.22.42.62.83Density (g/cm³)Yield strength (MPa) — log scaleAlSi7Mg0.6AlSi9Cu3AlMgScA2024-RAM2

Manufacturing and finishing

CapabilityAlMgScAlSi7Mg0.6AlSi9Cu3A2024-RAM2
Default condition
Relative cost$$$$ High$$$$ High$$ Standard$$$$ High
Min. machined wall
Best machined surface

Both take the same 4 finishes: Electroless Nickel (EN), Epoxy Coating, Gold Plating, Silver Plating.

Ready to make it?

Upload a CAD file and FabDigit prices the part in AlMgSc and AlSi7Mg0.6 side by side — material, machining time, tolerance and finish in one quote. Certified material data ships with the order on request.

Typical handbook values for the conditions named above, normalised for comparison. Hardness on non-Brinell scales is converted approximately for charting only. Request certified data with your order for design-critical properties.