FabDigitFabDigit

Aluminum 7010 vs 7072

Aluminum · grade comparison

Aluminum 7010 and 7072 are both aluminum grades. 7010 is the stronger of the two: yield strength 450 MPa (65.3 ksi) against 21 MPa (3.05 ksi) for 7072, about 21 times as much; tensile strength follows at 515 MPa (74.7 ksi) vs 55 MPa (7.98 ksi). In exchange, 7072 is the more ductile: elongation 32% versus 9% for 7010, and 7010 is harder (145 HB vs 20 HB). 7072 is lighter (2.72 g/cm³ vs 2.82 g/cm³ for 7010) and 7072 runs hotter in service (150°C vs 120°C continuous). On the shop floor, 7010 machines more easily (very good vs poor), 7072 welds better (very good vs poor), and 7072 sits in a lower cost tier (budget, $) than 7010 (premium, $$$).

7010Choose it when strength drives the design, or when the part is machined in volume.

7072Choose it when the part is bent, formed or impact-loaded, or when weight is the constraint.

7010 vs 7072: properties

70107072

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

71 GPa10.3 Msi
69 GPa10 Msi

Shear Modulus

26.9 GPa3.9 Msi
26 GPa3.8 Msi

Bulk Modulus

74 GPa10.7 Msi
69 GPa10 Msi

Tensile Strength (Ultimate)

515 MPa74.7 ksi
55 MPa8 ksi

Yield Strength (0.2% offset)

450 MPa65.3 ksi
21 MPa3 ksi

Elongation at Break

9%
32%

Reduction in Area

18%
—

Compressive Strength

460 MPa66.7 ksi
—

Shear Strength

300 MPa43.5 ksi
41 MPa5.9 ksi

Fatigue Strength (Endurance Limit)

150 MPa21.8 ksi
30 MPa4.4 ksi

Fracture Toughness (K_IC)

36 MPa·√m32.8 ksi·√in
—

Hardness, Brinell

145 HB
20 HB

Hardness, Vickers

155 HV
—

Same in both: Poisson's Ratio 0.33

Physical

Density and transition temperatures.

Density

2.82 g/cm³0.1 lb/in³
2.72 g/cm³0.1 lb/in³

Melting Point (Solidus)

476°C889 °F
640°C1,184 °F

Liquidus Temperature

635°C1,175 °F
657°C1,215 °F

Thermal

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

Thermal Conductivity

154 W/m·K89 BTU/hr·ft·°F
227 W/m·K131 BTU/hr·ft·°F

Specific Heat Capacity

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

Thermal Expansion (CTE, 20–100 °C)

23.4 µm/m·K13 µin/in·°F
23.6 µm/m·K13.1 µin/in·°F

Latent Heat of Fusion

390 J/g168 BTU/lb
395 J/g170 BTU/lb

Max Service Temperature (continuous)

120°C248 °F
150°C302 °F

Same in both: Min Service Temperature -196°C-321 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

40 % IACS
60 % IACS

Electrical Resistivity

4.3×10⁻⁸ Ω·m1.69 µΩ·in
2.87×10⁻⁸ Ω·m1.13 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.84 V
-0.96 V

Corrosion Resistance

42 / 100
72 / 100

Manufacturability

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

Machinability

72 / 100
30 / 100

Machinability Rating (AISI 1212 = 100 %)

70%
30%

Weldability

18 / 100
80 / 100

Formability (cold)

25 / 100
95 / 100

Castability

20 / 100
—

Brazeability / Solderability

10 / 100
80 / 100

Polishability

60 / 100
45 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

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

Embodied Carbon (primary production)

12.5 kg CO₂/kg
13 kg CO₂/kg

Typical Recycled Content

8%
20%

Same in both: Embodied Water 1,200 L/kg144 gal/lb

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

183 kN·m/kg
20 kN·m/kg

Specific Stiffness (E / density)

25.2 MN·m/kg
25.4 MN·m/kg

Modulus of Resilience

1,426 kJ/m³
3 kJ/m³

Thermal Diffusivity

63.5 mm²/s
92.7 mm²/s

Thermal Shock Resistance Index

48
8

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 scale70727010

Manufacturing and finishing

Capability70107072
CNC machiningYes—
Default condition——
Relative cost$$$ Premium$ Budget
Min. machined wall0.5 mm—
Best machined surfaceRa 0.8 µm—
DLCYes—

Both are offered for Sheet metal. They share 15 finishes: Anodizing Type II, Cerakote, Chem Film (Alodine), E-Coating, Electroless Nickel (EN), Electropolishing, Epoxy Coating, Gold Plating, Hard Anodize Type III w/ PTFE, Hard Anodizing Type III, Nickel Plating, PTFE Coating and 3 more.

7010 vs 7072 — frequently asked

Is 7010 stronger than 7072?

Yes. 7010 has a typical yield strength of 450 MPa (65.3 ksi) against 21 MPa (3.05 ksi) for 7072 — about 21 times as much. Tensile strength is 515 MPa (74.7 ksi) vs 55 MPa (7.98 ksi).

Which is cheaper, 7010 or 7072?

7072 is the lower-cost material: it sits in the budget tier ($) while 7010 is premium ($$$). Part price depends far more on geometry, tolerance and quantity than on raw stock — upload a CAD file for a live quote.

Which is easier to machine, 7010 or 7072?

7010. Its machinability rates very good (72/100) against poor (30/100) for 7072; for welding the order is 7072 first (very good, 80/100) then 7010 (poor, 18/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in 7010 and 7072 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.