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Aluminum 2014 vs 2117

Aluminum · grade comparison

Aluminum 2014 and 2117 are both aluminum grades, both aerospace al. 2014 is the stronger of the two: yield strength 414 MPa (60 ksi) against 165 MPa (23.9 ksi) for 2117, about 151% more; tensile strength follows at 483 MPa (70.1 ksi) vs 295 MPa (42.8 ksi). In exchange, 2117 is the more ductile: elongation 27% versus 13% for 2014, and 2014 is harder (135 HB vs 70 HB). 2014 runs hotter in service (150°C vs 120°C continuous). On the shop floor, 2014 machines more easily (very good vs good).

2014Choose it when strength drives the design, or when the part sees heat.

2117Choose it when the part is bent, formed or impact-loaded.

2014 vs 2117: properties

20142117

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

72.4 GPa10.5 Msi
70.3 GPa10.2 Msi

Shear Modulus

28 GPa4.1 Msi
26.5 GPa3.8 Msi

Bulk Modulus

71 GPa10.3 Msi
74 GPa10.7 Msi

Tensile Strength (Ultimate)

483 MPa70.1 ksi
295 MPa42.8 ksi

Yield Strength (0.2% offset)

414 MPa60 ksi
165 MPa23.9 ksi

Elongation at Break

13%
27%

Compressive Strength

425 MPa61.6 ksi
—

Shear Strength

290 MPa42.1 ksi
195 MPa28.3 ksi

Fatigue Strength (Endurance Limit)

125 MPa18.1 ksi
95 MPa13.8 ksi

Fracture Toughness (K_IC)

24 MPa·√m21.8 ksi·√in
—

Hardness, Brinell

135 HB
70 HB

Hardness, Vickers

145 HV
—

Same in both: Poisson's Ratio 0.33

Physical

Density and transition temperatures.

Density

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

Melting Point (Solidus)

507°C945 °F
554°C1,029 °F

Liquidus Temperature

638°C1,180 °F
650°C1,202 °F

Thermal

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

Thermal Conductivity

155 W/m·K89.6 BTU/hr·ft·°F
151 W/m·K87.2 BTU/hr·ft·°F

Thermal Expansion (CTE, 20–100 °C)

22.5 µm/m·K12.5 µin/in·°F
23.8 µm/m·K13.2 µin/in·°F

Max Service Temperature (continuous)

150°C302 °F
120°C248 °F

Same in both: Specific Heat Capacity 864 J/kg·K0.21 BTU/lb·°F · Latent Heat of Fusion 390 J/g168 BTU/lb · Min Service Temperature -200°C-328 °F

Electrical

Conductivity and insulation.

Electrical Resistivity

4.3×10⁻⁸ Ω·m1.69 µΩ·in
4.31×10⁻⁸ Ω·m1.7 µΩ·in

Same in both: Electrical Conductivity 40 % IACS

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.78 V
-0.64 V

Corrosion Resistance

30 / 100
35 / 100

Manufacturability

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

Machinability

78 / 100
65 / 100

Machinability Rating (AISI 1212 = 100 %)

200%
—

Weldability

25 / 100
20 / 100

Formability (cold)

30 / 100
75 / 100

Castability

25 / 100
—

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

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

200 MJ/kg85,985 BTU/lb
155 MJ/kg66,638 BTU/lb

Embodied Carbon (primary production)

12.5 kg CO₂/kg
12 kg CO₂/kg

Embodied Water

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

Typical Recycled Content

20%
25%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

173 kN·m/kg
107 kN·m/kg

Specific Stiffness (E / density)

25.9 MN·m/kg
25.6 MN·m/kg

Modulus of Resilience

1,184 kJ/m³
194 kJ/m³

Thermal Diffusivity

64.1 mm²/s
63.6 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 scale20142117

Manufacturing and finishing

Capability20142117
Default condition——
Relative cost$$$ Premium$$$ Premium
Min. machined wall0.8 mm0.5 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 2117 — frequently asked

Is 2014 stronger than 2117?

Yes. 2014 has a typical yield strength of 414 MPa (60 ksi) against 165 MPa (23.9 ksi) for 2117 — about 151% more. Tensile strength is 483 MPa (70.1 ksi) vs 295 MPa (42.8 ksi).

Which is cheaper, 2014 or 2117?

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 2117?

2014. Its machinability rates very good (78/100) against good (65/100) for 2117; for welding the order is 2014 first (poor, 25/100) then 2117 (poor, 20/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in 2014 and 2117 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.