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Aluminum 8011 vs 8011A

Aluminum · grade comparison

Aluminum 8011 and 8011A are both aluminum grades. 8011A is the stronger of the two: yield strength 155 MPa (22.5 ksi) against 120 MPa (17.4 ksi) for 8011, about 29% more; tensile strength follows at 175 MPa (25.4 ksi) vs 145 MPa (21 ksi). In exchange, 8011 is the more ductile: elongation 4% versus 3% for 8011A, and 8011A is harder (50 HB vs 42 HB). 8011 runs hotter in service (150°C vs 110°C continuous) and 8011A conducts electricity better (55 % IACS vs 45 % IACS). On the shop floor, 8011A machines more easily (fair vs poor), 8011A welds better (very good vs good), and 8011 sits in a lower cost tier (budget, $) than 8011A (premium, $$$).

8011Choose it when the part is bent, formed or impact-loaded, or when the part sees heat.

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

8011 vs 8011A: properties

80118011A

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

145 MPa21 ksi
175 MPa25.4 ksi

Yield Strength (0.2% offset)

120 MPa17.4 ksi
155 MPa22.5 ksi

Elongation at Break

4%
3%

Shear Strength

90 MPa13.1 ksi
105 MPa15.2 ksi

Fatigue Strength (Endurance Limit)

55 MPa8 ksi
60 MPa8.7 ksi

Hardness, Brinell

42 HB
50 HB

Hardness, Vickers

46 HV
53 HV

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

Physical

Density and transition temperatures.

Melting Point (Solidus)

620°C1,148 °F
640°C1,184 °F

Same in both: Density 2.71 g/cm³0.1 lb/in³ · Liquidus Temperature 655°C1,211 °F

Thermal

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

Thermal Conductivity

205 W/m·K118 BTU/hr·ft·°F
211 W/m·K122 BTU/hr·ft·°F

Latent Heat of Fusion

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

Max Service Temperature (continuous)

150°C302 °F
110°C230 °F

Same in both: Specific Heat Capacity 900 J/kg·K0.21 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 23.4 µm/m·K13 µin/in·°F · Min Service Temperature -196°C-321 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

45 % IACS
55 % IACS

Electrical Resistivity

3.8×10⁻⁸ Ω·m1.5 µΩ·in
3.14×10⁻⁸ Ω·m1.24 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.84 V
-0.83 V

Corrosion Resistance

65 / 100
58 / 100

Manufacturability

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

Machinability

30 / 100
45 / 100

Machinability Rating (AISI 1212 = 100 %)

30%
35%

Weldability

60 / 100
80 / 100

Formability (cold)

60 / 100
35 / 100

Brazeability / Solderability

55 / 100
60 / 100

Polishability

45 / 100
40 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

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

Embodied Carbon (primary production)

12 kg CO₂/kg
12.5 kg CO₂/kg

Embodied Water

1,200 L/kg144 gal/lb
1,150 L/kg138 gal/lb

Typical Recycled Content

35%
30%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

54 kN·m/kg
65 kN·m/kg

Modulus of Resilience

104 kJ/m³
174 kJ/m³

Thermal Diffusivity

84.1 mm²/s
86.5 mm²/s

Thermal Shock Resistance Index

18
23

Same in both: Specific Stiffness (E / density) 25.5 MN·m/kg

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 scale80118011A

Manufacturing and finishing

Capability80118011A
Sheet metalYes—
Default condition——
Relative cost$ Budget$$$ Premium
Min. machined wall——
Best machined surface——
Anodizing Type IIYes—
CerakoteYes—
Chem Film (Alodine)Yes—
E-CoatingYes—
ElectropolishingYes—
Hard Anodize Type III w/ PTFEYes—
Hard Anodizing Type IIIYes—
Nickel PlatingYes—
PTFE CoatingYes—
PaintingYes—
Powder CoatingYes—

They share 4 finishes: Electroless Nickel (EN), Epoxy Coating, Gold Plating, Silver Plating.

8011 vs 8011A — frequently asked

Is 8011A stronger than 8011?

Yes. 8011A has a typical yield strength of 155 MPa (22.5 ksi) against 120 MPa (17.4 ksi) for 8011 — about 29% more. Tensile strength is 175 MPa (25.4 ksi) vs 145 MPa (21 ksi).

Which is cheaper, 8011 or 8011A?

8011 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, 8011 or 8011A?

8011A. Its machinability rates fair (45/100) against poor (30/100) for 8011; for welding the order is 8011A first (very good, 80/100) then 8011 (good, 60/100).

Ready to make it?

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