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Aluminum 8011A vs 8079

Aluminum · grade comparison

Aluminum 8011A and 8079 are both aluminum grades. 8011A is the stronger of the two: yield strength 155 MPa (22.5 ksi) against 35 MPa (5.08 ksi) for 8079, about 4.4 times as much; tensile strength follows at 175 MPa (25.4 ksi) vs 85 MPa (12.3 ksi). In exchange, 8079 is the more ductile: elongation 25% versus 3% for 8011A, and 8011A is harder (50 HB vs 22 HB). 8079 runs hotter in service (150°C vs 110°C continuous). On the shop floor, 8011A machines more easily (fair vs poor) and 8079 sits in a lower cost tier (budget, $) than 8011A (premium, $$$).

8011AChoose it when strength drives the design, or when the part is machined in volume.

8079Choose it when the part is bent, formed or impact-loaded, or when the part sees heat.

8011A vs 8079: properties

8011A8079

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Bulk Modulus

69 GPa10 Msi
70 GPa10.2 Msi

Tensile Strength (Ultimate)

175 MPa25.4 ksi
85 MPa12.3 ksi

Yield Strength (0.2% offset)

155 MPa22.5 ksi
35 MPa5.1 ksi

Elongation at Break

3%
25%

Shear Strength

105 MPa15.2 ksi
55 MPa8 ksi

Fatigue Strength (Endurance Limit)

60 MPa8.7 ksi
35 MPa5.1 ksi

Hardness, Brinell

50 HB
22 HB

Hardness, Vickers

53 HV
—

Same in both: Elastic (Young's) Modulus 69 GPa10 Msi · Shear Modulus 26 GPa3.8 Msi · Poisson's Ratio 0.33

Physical

Density and transition temperatures.

Density

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

Melting Point (Solidus)

640°C1,184 °F
645°C1,193 °F

Same in both: Liquidus Temperature 655°C1,211 °F

Thermal

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

Thermal Conductivity

211 W/m·K122 BTU/hr·ft·°F
225 W/m·K130 BTU/hr·ft·°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

393 J/g169 BTU/lb
395 J/g170 BTU/lb

Max Service Temperature (continuous)

110°C230 °F
150°C302 °F

Same in both: Specific Heat Capacity 900 J/kg·K0.21 BTU/lb·°F · Min Service Temperature -196°C-321 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

55 % IACS
58 % IACS

Electrical Resistivity

3.14×10⁻⁸ Ω·m1.24 µΩ·in
2.97×10⁻⁸ Ω·m1.17 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

58 / 100
72 / 100

Same in both: Galvanic Potential (seawater, vs SCE) -0.83 V

Manufacturability

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

Machinability

45 / 100
30 / 100

Machinability Rating (AISI 1212 = 100 %)

35%
30%

Weldability

80 / 100
75 / 100

Formability (cold)

35 / 100
95 / 100

Brazeability / Solderability

60 / 100
55 / 100

Polishability

40 / 100
50 / 100

Castability

—
60 / 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
1,200 L/kg144 gal/lb

Typical Recycled Content

30%
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)

65 kN·m/kg
31 kN·m/kg

Specific Stiffness (E / density)

25.5 MN·m/kg
25.4 MN·m/kg

Modulus of Resilience

174 kJ/m³
9 kJ/m³

Thermal Diffusivity

86.5 mm²/s
91.9 mm²/s

Thermal Shock Resistance Index

23
12

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 scale80798011A

Manufacturing and finishing

Capability8011A8079
Sheet metal—Yes
Default condition——
Relative cost$$$ Premium$ Budget
Min. machined wall——
Best machined surface——
Anodizing Type II—Yes
Cerakote—Yes
Chem Film (Alodine)—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.

8011A vs 8079 — frequently asked

Is 8011A stronger than 8079?

Yes. 8011A has a typical yield strength of 155 MPa (22.5 ksi) against 35 MPa (5.08 ksi) for 8079 — about 4.4 times as much. Tensile strength is 175 MPa (25.4 ksi) vs 85 MPa (12.3 ksi).

Which is cheaper, 8011A or 8079?

8079 is the lower-cost material: it sits in the budget tier ($) while 8011A 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, 8011A or 8079?

8011A. Its machinability rates fair (45/100) against poor (30/100) for 8079; for welding the order is 8011A first (very good, 80/100) then 8079 (very good, 75/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in 8011A and 8079 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.