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Aluminum 2007 vs 2017A

Aluminum · grade comparison

Aluminum 2007 and 2017A are both aluminum grades, both high strength al. 2007 is the stronger of the two: yield strength 300 MPa (43.5 ksi) against 260 MPa (37.7 ksi) for 2017A, about 15% more. In exchange, 2017A is the more ductile: elongation 14% versus 10% for 2007. 2017A conducts electricity better (34 % IACS vs 30 % IACS). On the shop floor, 2007 machines more easily (excellent vs very good).

2007Choose it when strength drives the design, or when the part is machined in volume.

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

2007 vs 2017A: properties

20072017A

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

72 GPa10.4 Msi
72.5 GPa10.5 Msi

Bulk Modulus

71 GPa10.3 Msi
75 GPa10.9 Msi

Tensile Strength (Ultimate)

390 MPa56.6 ksi
410 MPa59.5 ksi

Yield Strength (0.2% offset)

300 MPa43.5 ksi
260 MPa37.7 ksi

Elongation at Break

10%
14%

Shear Strength

235 MPa34.1 ksi
260 MPa37.7 ksi

Fracture Toughness (K_IC)

27 MPa·√m24.6 ksi·√in
30 MPa·√m27.3 ksi·√in

Hardness, Brinell

115 HB
110 HB

Hardness, Rockwell B

65 HRB
62 HRB

Compressive Strength

—
260 MPa37.7 ksi

Hardness, Vickers

—
118 HV

Same in both: Shear Modulus 27 GPa3.9 Msi · Poisson's Ratio 0.33 · Fatigue Strength (Endurance Limit) 125 MPa18.1 ksi

Physical

Density and transition temperatures.

Density

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

Melting Point (Solidus)

508°C946 °F
512°C954 °F

Liquidus Temperature

640°C1,184 °F
641°C1,186 °F

Thermal

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

Thermal Conductivity

135 W/m·K78 BTU/hr·ft·°F
134 W/m·K77.4 BTU/hr·ft·°F

Specific Heat Capacity

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

Same in both: Thermal Expansion (CTE, 20–100 °C) 23 µm/m·K12.8 µin/in·°F · Latent Heat of Fusion 390 J/g168 BTU/lb · Max Service Temperature (continuous) 120°C248 °F · Min Service Temperature -196°C-321 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

30 % IACS
34 % IACS

Electrical Resistivity

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

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.68 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

95 / 100
75 / 100

Machinability Rating (AISI 1212 = 100 %)

300%
75%

Weldability

15 / 100
20 / 100

Formability (cold)

25 / 100
45 / 100

Polishability

45 / 100
55 / 100

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

Sustainability

Primary-production footprint per kilogram.

Embodied Water

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

Typical Recycled Content

30%
25%

Same in both: Embodied Energy (primary production) 200 MJ/kg85,985 BTU/lb · Embodied Carbon (primary production) 12.5 kg CO₂/kg

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

137 kN·m/kg
147 kN·m/kg

Specific Stiffness (E / density)

25.3 MN·m/kg
26 MN·m/kg

Modulus of Resilience

625 kJ/m³
466 kJ/m³

Thermal Diffusivity

55.1 mm²/s
55 mm²/s

Thermal Shock Resistance Index

32
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 scale20072017A

Manufacturing and finishing

Capability20072017A
Default condition——
Relative cost$$$ Premium$$$ Premium
Min. machined wall0.5 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.

2007 vs 2017A — frequently asked

Is 2007 stronger than 2017A?

Yes. 2007 has a typical yield strength of 300 MPa (43.5 ksi) against 260 MPa (37.7 ksi) for 2017A — about 15% more. Tensile strength is 390 MPa (56.6 ksi) vs 410 MPa (59.5 ksi).

Which is cheaper, 2007 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, 2007 or 2017A?

2007. Its machinability rates excellent (95/100) against very good (75/100) for 2017A; for welding the order is 2017A first (poor, 20/100) then 2007 (poor, 15/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in 2007 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.