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Aluminum 2017 vs 2024

Aluminum · grade comparison

Aluminum 2017 and 2024 are both aluminum grades. 2024 is the stronger of the two: yield strength 345 MPa (50 ksi) against 276 MPa (40 ksi) for 2017, about 25% more; tensile strength follows at 483 MPa (70.1 ksi) vs 427 MPa (61.9 ksi). In exchange, 2017 is the more ductile: elongation 22% versus 18% for 2024, and 2024 is harder (120 HB vs 105 HB). 2024 runs hotter in service (150°C vs 120°C continuous) and 2017 conducts electricity better (34 % IACS vs 30 % IACS).

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

2024Choose it when strength drives the design, or when the part sees heat.

2017 vs 2024: properties

20172024

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

72.4 GPa10.5 Msi
73.1 GPa10.6 Msi

Shear Modulus

27 GPa3.9 Msi
28 GPa4.1 Msi

Bulk Modulus

75 GPa10.9 Msi
73 GPa10.6 Msi

Tensile Strength (Ultimate)

427 MPa61.9 ksi
483 MPa70.1 ksi

Yield Strength (0.2% offset)

276 MPa40 ksi
345 MPa50 ksi

Elongation at Break

22%
18%

Compressive Strength

276 MPa40 ksi
350 MPa50.8 ksi

Shear Strength

260 MPa37.7 ksi
283 MPa41 ksi

Fatigue Strength (Endurance Limit)

124 MPa18 ksi
138 MPa20 ksi

Fracture Toughness (K_IC)

30 MPa·√m27.3 ksi·√in
37 MPa·√m33.7 ksi·√in

Hardness, Brinell

105 HB
120 HB

Hardness, Rockwell B

65 HRB
75 HRB

Hardness, Vickers

115 HV
137 HV

Same in both: Poisson's Ratio 0.33

Physical

Density and transition temperatures.

Density

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

Melting Point (Solidus)

513°C955 °F
502°C936 °F

Liquidus Temperature

641°C1,186 °F
638°C1,180 °F

Thermal

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

Thermal Conductivity

134 W/m·K77.4 BTU/hr·ft·°F
121 W/m·K69.9 BTU/hr·ft·°F

Specific Heat Capacity

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

Thermal Expansion (CTE, 20–100 °C)

23.6 µm/m·K13.1 µin/in·°F
22.9 µm/m·K12.7 µin/in·°F

Max Service Temperature (continuous)

120°C248 °F
150°C302 °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

34 % IACS
30 % IACS

Electrical Resistivity

5.07×10⁻⁸ Ω·m2 µΩ·in
5.75×10⁻⁸ Ω·m2.26 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

33 / 100
32 / 100

Same in both: Galvanic Potential (seawater, vs SCE) -0.69 V

Manufacturability

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

Machinability

78 / 100
72 / 100

Formability (cold)

45 / 100
40 / 100

Castability

25 / 100
10 / 100

Same in both: Machinability Rating (AISI 1212 = 100 %) 70% · Weldability 20 / 100 · Brazeability / Solderability 15 / 100 · Polishability 55 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Carbon (primary production)

12 kg CO₂/kg
12.5 kg CO₂/kg

Embodied Water

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

Typical Recycled Content

30%
10%

Same in both: Embodied Energy (primary production) 200 MJ/kg85,985 BTU/lb

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

153 kN·m/kg
174 kN·m/kg

Specific Stiffness (E / density)

25.9 MN·m/kg
26.3 MN·m/kg

Modulus of Resilience

526 kJ/m³
814 kJ/m³

Thermal Diffusivity

55 mm²/s
49.7 mm²/s

Thermal Shock Resistance Index

33
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 scale20172024

Manufacturing and finishing

Capability20172024
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.

2017 vs 2024 — frequently asked

Is 2024 stronger than 2017?

Yes. 2024 has a typical yield strength of 345 MPa (50 ksi) against 276 MPa (40 ksi) for 2017 — about 25% more. Tensile strength is 483 MPa (70.1 ksi) vs 427 MPa (61.9 ksi).

Which is cheaper, 2017 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, 2017 or 2024?

2017, by a small margin. Both rate very good for machinability — 78/100 against 72/100 for 2024.

Ready to make it?

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