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Aluminum Al-Ce vs Scalmalloy

Aluminum · grade comparison

Aluminum Al-Ce and Scalmalloy 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 Scalmalloy, about 12% more. In exchange, Scalmalloy is the more ductile: elongation 14% versus 8% for Al-Ce, and Al-Ce is harder (112 HV vs 105 HV). Scalmalloy is lighter (2.67 g/cm³ vs 2.8 g/cm³ for Al-Ce) and Al-Ce is stiffer (74 GPa vs 70 GPa). On the shop floor, Al-Ce welds better (very good vs good) and Al-Ce sits in a lower cost tier (high, $$$$) than Scalmalloy (specialty, $$$$$).

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

ScalmalloyChoose it when the part is bent, formed or impact-loaded, or when weight is the constraint.

Al-Ce vs Scalmalloy: properties

Al-CeScalmalloy

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

74 GPa10.7 Msi
70 GPa10.2 Msi

Shear Modulus

27.5 GPa4 Msi
26.5 GPa3.8 Msi

Bulk Modulus

73 GPa10.6 Msi
68 GPa9.9 Msi

Tensile Strength (Ultimate)

420 MPa60.9 ksi
400 MPa58 ksi

Yield Strength (0.2% offset)

320 MPa46.4 ksi
285 MPa41.3 ksi

Elongation at Break

8%
14%

Compressive Strength

340 MPa49.3 ksi
300 MPa43.5 ksi

Shear Strength

250 MPa36.3 ksi
240 MPa34.8 ksi

Fatigue Strength (Endurance Limit)

115 MPa16.7 ksi
110 MPa16 ksi

Fracture Toughness (K_IC)

20 MPa·√m18.2 ksi·√in
30 MPa·√m27.3 ksi·√in

Charpy V-Notch Impact (RT)

6 J4.4 ft·lbf
—

Hardness, Rockwell B

60 HRB
—

Hardness, Vickers

112 HV
105 HV

Same in both: Poisson's Ratio 0.33 · Hardness, Brinell 100 HB

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
574°C1,065 °F

Liquidus Temperature

655°C1,211 °F
638°C1,180 °F

Thermal

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

Thermal Conductivity

100 W/m·K57.8 BTU/hr·ft·°F
110 W/m·K63.6 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
23.5 µm/m·K13.1 µin/in·°F

Latent Heat of Fusion

380 J/g163 BTU/lb
390 J/g168 BTU/lb

Max Service Temperature (continuous)

250°C482 °F
120°C248 °F

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

Electrical

Conductivity and insulation.

Electrical Conductivity

28 % IACS
26 % IACS

Electrical Resistivity

5.7×10⁻⁸ Ω·m2.24 µΩ·in
6.6×10⁻⁸ Ω·m2.6 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.75 V
-0.87 V

Corrosion Resistance

55 / 100
65 / 100

Manufacturability

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

Machinability

58 / 100
55 / 100

Machinability Rating (AISI 1212 = 100 %)

90%
40%

Weldability

75 / 100
60 / 100

Formability (cold)

30 / 100
—

Castability

88 / 100
25 / 100

Brazeability / Solderability

35 / 100
25 / 100

Polishability

55 / 100
65 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

235 MJ/kg101,032 BTU/lb
350 MJ/kg150,473 BTU/lb

Embodied Carbon (primary production)

14 kg CO₂/kg
26 kg CO₂/kg

Same in both: Embodied Water 1,200 L/kg144 gal/lb · Typical Recycled Content 5%

Common Calculations

Ratios derived from the values above.

Specific Stiffness (E / density)

26.4 MN·m/kg
26.2 MN·m/kg

Modulus of Resilience

692 kJ/m³
580 kJ/m³

Thermal Diffusivity

40.1 mm²/s
45.8 mm²/s

Thermal Shock Resistance Index

26
27

Same in both: Specific Strength (UTS / density) 150 kN·m/kg

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 scaleAl-CeScalmalloy

Manufacturing and finishing

CapabilityAl-CeScalmalloy
3D printing—Yes
Default condition—As Printed
Relative cost$$$$ High$$$$$ Specialty
Min. machined wall——
Best machined surface——
Anodized (Aluminum AM)—Yes
Plated (Metal AM)—Yes

They share 4 finishes: Electroless Nickel (EN), Epoxy Coating, Gold Plating, Silver Plating.

Al-Ce vs Scalmalloy — frequently asked

Is Al-Ce stronger than Scalmalloy?

Yes. Al-Ce has a typical yield strength of 320 MPa (46.4 ksi) against 285 MPa (41.3 ksi) for Scalmalloy — about 12% more. Tensile strength is 420 MPa (60.9 ksi) vs 400 MPa (58 ksi).

Which is cheaper, Al-Ce or Scalmalloy?

Al-Ce is the lower-cost material: it sits in the high tier ($$$$) while Scalmalloy is specialty ($$$$$). Part price depends far more on geometry, tolerance and quantity than on raw stock — upload a CAD file for a live quote.

Which welds better, Al-Ce or Scalmalloy?

Al-Ce. Its weldability rates very good (75/100) against good (60/100) for Scalmalloy.

Ready to make it?

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