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Aluminum 2014A vs 2017A

Aluminum · grade comparison

Aluminum 2014A and 2017A are both aluminum grades. 2014A is the stronger of the two: yield strength 415 MPa (60.2 ksi) against 260 MPa (37.7 ksi) for 2017A, about 60% more; tensile strength follows at 470 MPa (68.2 ksi) vs 410 MPa (59.5 ksi). In exchange, 2017A is the more ductile: elongation 14% versus 9% for 2014A, and 2014A is harder (135 HB vs 110 HB). 2014A runs hotter in service (150°C vs 120°C continuous) and 2014A conducts heat better (155 W/m·K vs 134 W/m·K).

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

2017AChoose it when the part is bent, formed or impact-loaded.

2014A vs 2017A: properties

2014A2017A

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

73 GPa10.6 Msi
72.5 GPa10.5 Msi

Shear Modulus

28 GPa4.1 Msi
27 GPa3.9 Msi

Tensile Strength (Ultimate)

470 MPa68.2 ksi
410 MPa59.5 ksi

Yield Strength (0.2% offset)

415 MPa60.2 ksi
260 MPa37.7 ksi

Elongation at Break

9%
14%

Reduction in Area

25%
—

Compressive Strength

415 MPa60.2 ksi
260 MPa37.7 ksi

Shear Strength

290 MPa42.1 ksi
260 MPa37.7 ksi

Fatigue Strength (Endurance Limit)

124 MPa18 ksi
125 MPa18.1 ksi

Fracture Toughness (K_IC)

25 MPa·√m22.8 ksi·√in
30 MPa·√m27.3 ksi·√in

Hardness, Brinell

135 HB
110 HB

Hardness, Rockwell B

80 HRB
62 HRB

Hardness, Vickers

142 HV
118 HV

Same in both: Bulk Modulus 75 GPa10.9 Msi · Poisson's Ratio 0.33

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

880 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

Same in both: Latent Heat of Fusion 390 J/g168 BTU/lb · Min Service Temperature -196°C-321 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

40 % IACS
34 % IACS

Electrical Resistivity

4.31×10⁻⁸ Ω·m1.7 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

80 / 100
75 / 100

Machinability Rating (AISI 1212 = 100 %)

300%
75%

Weldability

25 / 100
20 / 100

Formability (cold)

25 / 100
45 / 100

Castability

30 / 100
25 / 100

Polishability

60 / 100
55 / 100

Same in both: Brazeability / Solderability 15 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

205 MJ/kg88,134 BTU/lb
200 MJ/kg85,985 BTU/lb

Embodied Water

1,150 L/kg138 gal/lb
1,100 L/kg132 gal/lb

Typical Recycled Content

15%
25%

Same in both: Embodied Carbon (primary production) 12.5 kg CO₂/kg

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

168 kN·m/kg
147 kN·m/kg

Specific Stiffness (E / density)

26.1 MN·m/kg
26 MN·m/kg

Modulus of Resilience

1,180 kJ/m³
466 kJ/m³

Thermal Diffusivity

62.9 mm²/s
55 mm²/s

Thermal Shock Resistance Index

44
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 scale2017A2014A

Manufacturing and finishing

Capability2014A2017A
CNC machining—Yes
Sheet metal—Yes
Default condition——
Relative cost$$$ Premium$$$ Premium
Min. machined wall—0.8 mm
Best machined surface—Ra 0.8 µm
Anodizing Type II—Yes
Cerakote—Yes
Chem Film (Alodine)—Yes
DLC—Yes
E-Coating—Yes
Electropolishing—Yes
Hard Anodize Type III w/ PTFE—Yes
Hard Anodizing Type III—Yes
Nickel Plating—Yes
PTFE Coating—Yes
Painting—Yes
Powder Coating—Yes

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

2014A vs 2017A — frequently asked

Is 2014A stronger than 2017A?

Yes. 2014A has a typical yield strength of 415 MPa (60.2 ksi) against 260 MPa (37.7 ksi) for 2017A — about 60% more. Tensile strength is 470 MPa (68.2 ksi) vs 410 MPa (59.5 ksi).

Which is cheaper, 2014A 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 is easier to machine, 2014A or 2017A?

2014A, by a small margin. Both rate very good for machinability — 80/100 against 75/100 for 2017A; for welding the order is 2014A first (poor, 25/100) then 2017A (poor, 20/100).

Ready to make it?

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