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Aluminum Al-Ce vs AlSi7Mg0.6

Aluminum · grade comparison

Aluminum Al-Ce and AlSi7Mg0.6 are both aluminum grades. Al-Ce is the stronger of the two: yield strength 320 MPa (46.4 ksi) against 285 MPa (41.3 ksi) for AlSi7Mg0.6, about 12% more; tensile strength follows at 420 MPa (60.9 ksi) vs 355 MPa (51.5 ksi). In exchange, AlSi7Mg0.6 is the more ductile: elongation 10% versus 8% for Al-Ce. AlSi7Mg0.6 is lighter (2.67 g/cm³ vs 2.8 g/cm³ for Al-Ce) and Al-Ce runs hotter in service (250°C vs 150°C continuous). On the shop floor, Al-Ce welds better (very good vs good).

Al-CeChoose it when strength drives the design, or when the part sees heat.

AlSi7Mg0.6Choose it when the part is bent, formed or impact-loaded, or when weight is the constraint.

Al-Ce vs AlSi7Mg0.6: properties

Al-CeAlSi7Mg0.6

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

74 GPa10.7 Msi
72 GPa10.4 Msi

Shear Modulus

27.5 GPa4 Msi
27 GPa3.9 Msi

Bulk Modulus

73 GPa10.6 Msi
71 GPa10.3 Msi

Tensile Strength (Ultimate)

420 MPa60.9 ksi
355 MPa51.5 ksi

Yield Strength (0.2% offset)

320 MPa46.4 ksi
285 MPa41.3 ksi

Elongation at Break

8%
10%

Compressive Strength

340 MPa49.3 ksi
290 MPa42.1 ksi

Shear Strength

250 MPa36.3 ksi
230 MPa33.4 ksi

Fatigue Strength (Endurance Limit)

115 MPa16.7 ksi
125 MPa18.1 ksi

Fracture Toughness (K_IC)

20 MPa·√m18.2 ksi·√in
24 MPa·√m21.8 ksi·√in

Charpy V-Notch Impact (RT)

6 J4.4 ft·lbf
5 J3.7 ft·lbf

Hardness, Brinell

100 HB
105 HB

Hardness, Rockwell B

60 HRB
63 HRB

Hardness, Vickers

112 HV
115 HV

Same in both: Poisson's Ratio 0.33

Physical

Density and transition temperatures.

Density

2.8 g/cm³0.1 lb/in³
2.67 g/cm³0.1 lb/in³

Melting Point (Solidus)

640°C1,184 °F
555°C1,031 °F

Liquidus Temperature

655°C1,211 °F
613°C1,135 °F

Thermal

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

Thermal Conductivity

100 W/m·K57.8 BTU/hr·ft·°F
155 W/m·K89.6 BTU/hr·ft·°F

Specific Heat Capacity

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

Thermal Expansion (CTE, 20–100 °C)

22 µm/m·K12.2 µin/in·°F
21.5 µm/m·K11.9 µin/in·°F

Latent Heat of Fusion

380 J/g163 BTU/lb
389 J/g167 BTU/lb

Max Service Temperature (continuous)

250°C482 °F
150°C302 °F

Same in both: Min Service Temperature -196°C-321 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

28 % IACS
39 % IACS

Electrical Resistivity

5.7×10⁻⁸ Ω·m2.24 µΩ·in
4.4×10⁻⁸ Ω·m1.73 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.75 V
-0.83 V

Corrosion Resistance

55 / 100
58 / 100

Manufacturability

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

Machinability

58 / 100
65 / 100

Machinability Rating (AISI 1212 = 100 %)

90%
70%

Weldability

75 / 100
65 / 100

Formability (cold)

30 / 100
20 / 100

Castability

88 / 100
92 / 100

Brazeability / Solderability

35 / 100
40 / 100

Same in both: Polishability 55 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

235 MJ/kg101,032 BTU/lb
215 MJ/kg92,433 BTU/lb

Embodied Carbon (primary production)

14 kg CO₂/kg
13.5 kg CO₂/kg

Embodied Water

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

Typical Recycled Content

5%
10%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

150 kN·m/kg
133 kN·m/kg

Specific Stiffness (E / density)

26.4 MN·m/kg
27 MN·m/kg

Modulus of Resilience

692 kJ/m³
564 kJ/m³

Thermal Diffusivity

40.1 mm²/s
64.5 mm²/s

Thermal Shock Resistance Index

26
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 scaleAlSi7Mg0.6Al-Ce

Manufacturing and finishing

CapabilityAl-CeAlSi7Mg0.6
Default condition——
Relative cost$$$$ High$$$$ High
Min. machined wall——
Best machined surface——

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

Al-Ce vs AlSi7Mg0.6 — frequently asked

Is Al-Ce stronger than AlSi7Mg0.6?

Yes. Al-Ce has a typical yield strength of 320 MPa (46.4 ksi) against 285 MPa (41.3 ksi) for AlSi7Mg0.6 — about 12% more. Tensile strength is 420 MPa (60.9 ksi) vs 355 MPa (51.5 ksi).

Which is cheaper, Al-Ce or AlSi7Mg0.6?

Both sit in the same relative cost tier ($$$$, high); the part price will be decided by machining time, tolerance and quantity rather than by the material.

Which is easier to machine, Al-Ce or AlSi7Mg0.6?

AlSi7Mg0.6, by a small margin. Both rate good for machinability — 65/100 against 58/100 for Al-Ce; for welding the order is Al-Ce first (very good, 75/100) then AlSi7Mg0.6 (good, 65/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in Al-Ce 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.