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Aluminum 2014 vs Scalmalloy

Aluminum · grade comparison

Aluminum 2014 and Scalmalloy are both aluminum grades, both aerospace al. 2014 is the stronger of the two: yield strength 414 MPa (60 ksi) against 285 MPa (41.3 ksi) for Scalmalloy, about 45% more; tensile strength follows at 483 MPa (70.1 ksi) vs 400 MPa (58 ksi). 2014 is harder — 135 HB against 100 HB for Scalmalloy — which matters for wear surfaces and threads. Scalmalloy is lighter (2.67 g/cm³ vs 2.8 g/cm³ for 2014) and 2014 runs hotter in service (150°C vs 120°C continuous). On the shop floor, 2014 machines more easily (very good vs good), Scalmalloy welds better (good vs poor), and 2014 sits in a lower cost tier (premium, $$$) than Scalmalloy (specialty, $$$$$).

2014Choose it when strength drives the design, or when surface hardness matters.

ScalmalloyChoose it when weight is the constraint, or when it will be welded.

2014 vs Scalmalloy: properties

2014Scalmalloy

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

72.4 GPa10.5 Msi
70 GPa10.2 Msi

Shear Modulus

28 GPa4.1 Msi
26.5 GPa3.8 Msi

Bulk Modulus

71 GPa10.3 Msi
68 GPa9.9 Msi

Tensile Strength (Ultimate)

483 MPa70.1 ksi
400 MPa58 ksi

Yield Strength (0.2% offset)

414 MPa60 ksi
285 MPa41.3 ksi

Elongation at Break

13%
14%

Compressive Strength

425 MPa61.6 ksi
300 MPa43.5 ksi

Shear Strength

290 MPa42.1 ksi
240 MPa34.8 ksi

Fatigue Strength (Endurance Limit)

125 MPa18.1 ksi
110 MPa16 ksi

Fracture Toughness (K_IC)

24 MPa·√m21.8 ksi·√in
30 MPa·√m27.3 ksi·√in

Hardness, Brinell

135 HB
100 HB

Hardness, Vickers

145 HV
105 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)

507°C945 °F
574°C1,065 °F

Same in both: Liquidus Temperature 638°C1,180 °F

Thermal

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

Thermal Conductivity

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

Specific Heat Capacity

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

Thermal Expansion (CTE, 20–100 °C)

22.5 µm/m·K12.5 µin/in·°F
23.5 µm/m·K13.1 µin/in·°F

Max Service Temperature (continuous)

150°C302 °F
120°C248 °F

Min Service Temperature

-200°C-328 °F
-196°C-321 °F

Same in both: Latent Heat of Fusion 390 J/g168 BTU/lb

Electrical

Conductivity and insulation.

Electrical Conductivity

40 % IACS
26 % IACS

Electrical Resistivity

4.3×10⁻⁸ Ω·m1.69 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)

-0.78 V
-0.87 V

Corrosion Resistance

30 / 100
65 / 100

Manufacturability

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

Machinability

78 / 100
55 / 100

Machinability Rating (AISI 1212 = 100 %)

200%
40%

Weldability

25 / 100
60 / 100

Formability (cold)

30 / 100
—

Brazeability / Solderability

15 / 100
25 / 100

Polishability

55 / 100
65 / 100

Same in both: Castability 25 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

200 MJ/kg85,985 BTU/lb
350 MJ/kg150,473 BTU/lb

Embodied Carbon (primary production)

12.5 kg CO₂/kg
26 kg CO₂/kg

Embodied Water

1,100 L/kg132 gal/lb
1,200 L/kg144 gal/lb

Typical Recycled Content

20%
5%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

173 kN·m/kg
150 kN·m/kg

Specific Stiffness (E / density)

25.9 MN·m/kg
26.2 MN·m/kg

Modulus of Resilience

1,184 kJ/m³
580 kJ/m³

Thermal Diffusivity

64.1 mm²/s
45.8 mm²/s

Thermal Shock Resistance Index

46
27

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 scale2014Scalmalloy

Manufacturing and finishing

Capability2014Scalmalloy
CNC machiningYes—
Sheet metalYes—
3D printing—Yes
Default condition—As Printed
Relative cost$$$ Premium$$$$$ Specialty
Min. machined wall0.8 mm—
Best machined surfaceRa 0.8 µm—
Anodized (Aluminum AM)—Yes
Anodizing Type IIYes—
CerakoteYes—
Chem Film (Alodine)Yes—
DLCYes—
E-CoatingYes—
ElectropolishingYes—
Hard Anodize Type III w/ PTFEYes—
Hard Anodizing Type IIIYes—
Nickel PlatingYes—
PTFE CoatingYes—
PaintingYes—
Plated (Metal AM)—Yes
Powder CoatingYes—

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

2014 vs Scalmalloy — frequently asked

Is 2014 stronger than Scalmalloy?

Yes. 2014 has a typical yield strength of 414 MPa (60 ksi) against 285 MPa (41.3 ksi) for Scalmalloy — about 45% more. Tensile strength is 483 MPa (70.1 ksi) vs 400 MPa (58 ksi).

Which is cheaper, 2014 or Scalmalloy?

2014 is the lower-cost material: it sits in the premium 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 is easier to machine, 2014 or Scalmalloy?

2014. Its machinability rates very good (78/100) against good (55/100) for Scalmalloy; for welding the order is Scalmalloy first (good, 60/100) then 2014 (poor, 25/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in 2014 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.