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Aluminum 8009 vs 8011

Aluminum · grade comparison

Aluminum 8009 and 8011 are both aluminum grades. 8009 is the stronger of the two: yield strength 385 MPa (55.8 ksi) against 120 MPa (17.4 ksi) for 8011, about 3.2 times as much; tensile strength follows at 415 MPa (60.2 ksi) vs 145 MPa (21 ksi). 8009 is the more ductile: elongation 12% versus 4% for 8011, and 8009 is harder (120 HB vs 42 HB). 8011 is lighter (2.71 g/cm³ vs 2.94 g/cm³ for 8009) and 8009 is stiffer (88 GPa vs 69 GPa). On the shop floor, 8009 machines more easily (fair vs poor), 8011 welds better (good vs poor), and 8011 sits in a lower cost tier (budget, $) than 8009 (high, $$$$).

8009Choose it when strength drives the design, or when the part is bent, formed or impact-loaded.

8011Choose it when weight is the constraint, or when it will be welded.

8009 vs 8011: properties

80098011

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

88 GPa12.8 Msi
69 GPa10 Msi

Shear Modulus

33 GPa4.8 Msi
26 GPa3.8 Msi

Bulk Modulus

86 GPa12.5 Msi
69 GPa10 Msi

Tensile Strength (Ultimate)

415 MPa60.2 ksi
145 MPa21 ksi

Yield Strength (0.2% offset)

385 MPa55.8 ksi
120 MPa17.4 ksi

Elongation at Break

12%
4%

Reduction in Area

20%
—

Compressive Strength

390 MPa56.6 ksi
—

Shear Strength

250 MPa36.3 ksi
90 MPa13.1 ksi

Fatigue Strength (Endurance Limit)

180 MPa26.1 ksi
55 MPa8 ksi

Fracture Toughness (K_IC)

26 MPa·√m23.7 ksi·√in
—

Charpy V-Notch Impact (RT)

8 J5.9 ft·lbf
—

Hardness, Brinell

120 HB
42 HB

Hardness, Rockwell B

73 HRB
—

Hardness, Vickers

130 HV
46 HV

Same in both: Poisson's Ratio 0.33

Physical

Density and transition temperatures.

Density

2.94 g/cm³0.11 lb/in³
2.71 g/cm³0.1 lb/in³

Melting Point (Solidus)

645°C1,193 °F
620°C1,148 °F

Liquidus Temperature

—
655°C1,211 °F

Thermal

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

Thermal Conductivity

130 W/m·K75.1 BTU/hr·ft·°F
205 W/m·K118 BTU/hr·ft·°F

Specific Heat Capacity

855 J/kg·K0.2 BTU/lb·°F
900 J/kg·K0.21 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

21.5 µm/m·K11.9 µin/in·°F
23.4 µm/m·K13 µin/in·°F

Latent Heat of Fusion

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

Max Service Temperature (continuous)

315°C599 °F
150°C302 °F

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

Electrical

Conductivity and insulation.

Electrical Conductivity

33 % IACS
45 % IACS

Electrical Resistivity

5.2×10⁻⁸ Ω·m2.05 µΩ·in
3.8×10⁻⁸ Ω·m1.5 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.75 V
-0.84 V

Corrosion Resistance

50 / 100
65 / 100

Manufacturability

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

Machinability

40 / 100
30 / 100

Machinability Rating (AISI 1212 = 100 %)

150%
30%

Weldability

25 / 100
60 / 100

Formability (cold)

30 / 100
60 / 100

Brazeability / Solderability

25 / 100
55 / 100

Polishability

55 / 100
45 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

260 MJ/kg111,780 BTU/lb
200 MJ/kg85,985 BTU/lb

Embodied Carbon (primary production)

16 kg CO₂/kg
12 kg CO₂/kg

Embodied Water

1,300 L/kg156 gal/lb
1,200 L/kg144 gal/lb

Typical Recycled Content

0%
35%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

141 kN·m/kg
54 kN·m/kg

Specific Stiffness (E / density)

29.9 MN·m/kg
25.5 MN·m/kg

Modulus of Resilience

842 kJ/m³
104 kJ/m³

Thermal Diffusivity

51.7 mm²/s
84.1 mm²/s

Thermal Shock Resistance Index

29
18

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 scale80118009

Manufacturing and finishing

Capability80098011
Sheet metal—Yes
Default condition——
Relative cost$$$$ High$ 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.

8009 vs 8011 — frequently asked

Is 8009 stronger than 8011?

Yes. 8009 has a typical yield strength of 385 MPa (55.8 ksi) against 120 MPa (17.4 ksi) for 8011 — about 3.2 times as much. Tensile strength is 415 MPa (60.2 ksi) vs 145 MPa (21 ksi).

Which is cheaper, 8009 or 8011?

8011 is the lower-cost material: it sits in the budget tier ($) while 8009 is high ($$$$). 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, 8009 or 8011?

8009. Its machinability rates fair (40/100) against poor (30/100) for 8011; for welding the order is 8011 first (good, 60/100) then 8009 (poor, 25/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in 8009 and 8011 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.