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Aluminum 2014 vs 2024

Aluminum · grade comparison

Aluminum 2014 and 2024 are both aluminum grades, both aerospace al. 2014 is the stronger of the two: yield strength 414 MPa (60 ksi) against 345 MPa (50 ksi) for 2024, about 20% more. In exchange, 2024 is the more ductile: elongation 18% versus 13% for 2014, and 2014 is harder (135 HB vs 120 HB). 2014 conducts heat better (155 W/m·K vs 121 W/m·K).

2014Choose it when strength drives the design.

2024Choose it when the part is bent, formed or impact-loaded.

2014 vs 2024: properties

20142024

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

72.4 GPa10.5 Msi
73.1 GPa10.6 Msi

Bulk Modulus

71 GPa10.3 Msi
73 GPa10.6 Msi

Yield Strength (0.2% offset)

414 MPa60 ksi
345 MPa50 ksi

Elongation at Break

13%
18%

Compressive Strength

425 MPa61.6 ksi
350 MPa50.8 ksi

Shear Strength

290 MPa42.1 ksi
283 MPa41 ksi

Fatigue Strength (Endurance Limit)

125 MPa18.1 ksi
138 MPa20 ksi

Fracture Toughness (K_IC)

24 MPa·√m21.8 ksi·√in
37 MPa·√m33.7 ksi·√in

Hardness, Brinell

135 HB
120 HB

Hardness, Vickers

145 HV
137 HV

Hardness, Rockwell B

—
75 HRB

Same in both: Shear Modulus 28 GPa4.1 Msi · Poisson's Ratio 0.33 · Tensile Strength (Ultimate) 483 MPa70.1 ksi

Physical

Density and transition temperatures.

Density

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

Melting Point (Solidus)

507°C945 °F
502°C936 °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
121 W/m·K69.9 BTU/hr·ft·°F

Specific Heat Capacity

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

Thermal Expansion (CTE, 20–100 °C)

22.5 µm/m·K12.5 µin/in·°F
22.9 µm/m·K12.7 µin/in·°F

Min Service Temperature

-200°C-328 °F
-196°C-321 °F

Same in both: Latent Heat of Fusion 390 J/g168 BTU/lb · Max Service Temperature (continuous) 150°C302 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

40 % IACS
30 % IACS

Electrical Resistivity

4.3×10⁻⁸ Ω·m1.69 µΩ·in
5.75×10⁻⁸ Ω·m2.26 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.78 V
-0.69 V

Corrosion Resistance

30 / 100
32 / 100

Manufacturability

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

Machinability

78 / 100
72 / 100

Machinability Rating (AISI 1212 = 100 %)

200%
70%

Weldability

25 / 100
20 / 100

Formability (cold)

30 / 100
40 / 100

Castability

25 / 100
10 / 100

Same in both: Brazeability / Solderability 15 / 100 · Polishability 55 / 100

Sustainability

Primary-production footprint per kilogram.

Typical Recycled Content

20%
10%

Same in both: Embodied Energy (primary production) 200 MJ/kg85,985 BTU/lb · Embodied Carbon (primary production) 12.5 kg CO₂/kg · Embodied Water 1,100 L/kg132 gal/lb

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

173 kN·m/kg
174 kN·m/kg

Specific Stiffness (E / density)

25.9 MN·m/kg
26.3 MN·m/kg

Modulus of Resilience

1,184 kJ/m³
814 kJ/m³

Thermal Diffusivity

64.1 mm²/s
49.7 mm²/s

Thermal Shock Resistance Index

46
35

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 scale20142024

Manufacturing and finishing

Capability20142024
Default condition—T3
Relative cost$$$ Premium$$$ Premium
Min. machined wall0.8 mm0.8 mm
Best machined surfaceRa 0.8 µmRa 0.8 µm

Both are offered for CNC machining and Sheet metal. Both take the same 16 finishes: Anodizing Type II, Cerakote, Chem Film (Alodine), DLC, E-Coating, Electroless Nickel (EN), Electropolishing, Epoxy Coating, Gold Plating, Hard Anodize Type III w/ PTFE, Hard Anodizing Type III, Nickel Plating and 4 more.

2014 vs 2024 — frequently asked

Is 2014 stronger than 2024?

Yes. 2014 has a typical yield strength of 414 MPa (60 ksi) against 345 MPa (50 ksi) for 2024 — about 20% more. Tensile strength is 483 MPa (70.1 ksi) vs 483 MPa (70.1 ksi).

Which is cheaper, 2014 or 2024?

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

Which is easier to machine, 2014 or 2024?

2014, by a small margin. Both rate very good for machinability — 78/100 against 72/100 for 2024; for welding the order is 2014 first (poor, 25/100) then 2024 (poor, 20/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in 2014 and 2024 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.