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Aluminum 2014 vs 2017A

Aluminum · grade comparison

Aluminum 2014 and 2017A are both aluminum grades. 2014 is the stronger of the two: yield strength 414 MPa (60 ksi) against 260 MPa (37.7 ksi) for 2017A, about 59% more; tensile strength follows at 483 MPa (70.1 ksi) vs 410 MPa (59.5 ksi). 2014 is harder — 135 HB against 110 HB for 2017A — which matters for wear surfaces and threads. 2014 runs hotter in service (150°C vs 120°C continuous) and 2014 conducts heat better (155 W/m·K vs 134 W/m·K). On the shop floor, 2017A forms better (fair vs poor).

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

2014 vs 2017A: properties

20142017A

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

72.4 GPa10.5 Msi
72.5 GPa10.5 Msi

Shear Modulus

28 GPa4.1 Msi
27 GPa3.9 Msi

Bulk Modulus

71 GPa10.3 Msi
75 GPa10.9 Msi

Tensile Strength (Ultimate)

483 MPa70.1 ksi
410 MPa59.5 ksi

Yield Strength (0.2% offset)

414 MPa60 ksi
260 MPa37.7 ksi

Elongation at Break

13%
14%

Compressive Strength

425 MPa61.6 ksi
260 MPa37.7 ksi

Shear Strength

290 MPa42.1 ksi
260 MPa37.7 ksi

Fracture Toughness (K_IC)

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

Hardness, Brinell

135 HB
110 HB

Hardness, Vickers

145 HV
118 HV

Hardness, Rockwell B

—
62 HRB

Same in both: Poisson's Ratio 0.33 · Fatigue Strength (Endurance Limit) 125 MPa18.1 ksi

Physical

Density and transition temperatures.

Density

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

Melting Point (Solidus)

507°C945 °F
512°C954 °F

Liquidus Temperature

638°C1,180 °F
641°C1,186 °F

Thermal

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

Thermal Conductivity

155 W/m·K89.6 BTU/hr·ft·°F
134 W/m·K77.4 BTU/hr·ft·°F

Specific Heat Capacity

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

Thermal Expansion (CTE, 20–100 °C)

22.5 µm/m·K12.5 µin/in·°F
23 µm/m·K12.8 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
34 % IACS

Electrical Resistivity

4.3×10⁻⁸ Ω·m1.69 µΩ·in
5.07×10⁻⁸ Ω·m2 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
35 / 100

Manufacturability

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

Machinability

78 / 100
75 / 100

Machinability Rating (AISI 1212 = 100 %)

200%
75%

Weldability

25 / 100
20 / 100

Formability (cold)

30 / 100
45 / 100

Same in both: Castability 25 / 100 · Brazeability / Solderability 15 / 100 · Polishability 55 / 100

Sustainability

Primary-production footprint per kilogram.

Typical Recycled Content

20%
25%

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
147 kN·m/kg

Specific Stiffness (E / density)

25.9 MN·m/kg
26 MN·m/kg

Modulus of Resilience

1,184 kJ/m³
466 kJ/m³

Thermal Diffusivity

64.1 mm²/s
55 mm²/s

Thermal Shock Resistance Index

46
33

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 scale2017A2014

Manufacturing and finishing

Capability20142017A
Default condition——
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 2017A — frequently asked

Is 2014 stronger than 2017A?

Yes. 2014 has a typical yield strength of 414 MPa (60 ksi) against 260 MPa (37.7 ksi) for 2017A — about 59% more. Tensile strength is 483 MPa (70.1 ksi) vs 410 MPa (59.5 ksi).

Which is cheaper, 2014 or 2017A?

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 welds better, 2014 or 2017A?

2014. Its weldability rates poor (25/100) against poor (20/100) for 2017A.

Ready to make it?

Upload a CAD file and FabDigit prices the part in 2014 and 2017A 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.