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Aluminum 6005A vs 6011

Aluminum · grade comparison

Aluminum 6005A and 6011 are both aluminum grades, both multipurpose al. 6011 is the stronger of the two: yield strength 330 MPa (47.9 ksi) against 235 MPa (34.1 ksi) for 6005A, about 40% more; tensile strength follows at 380 MPa (55.1 ksi) vs 275 MPa (39.9 ksi). 6011 is harder — 110 HB against 95 HB for 6005A — which matters for wear surfaces and threads. 6005A conducts heat better (190 W/m·K vs 165 W/m·K). On the shop floor, 6011 machines more easily (very good vs good) and 6005A welds better (excellent vs fair).

6005AChoose it when it will be welded.

6011Choose it when strength drives the design, or when surface hardness matters.

6005A vs 6011: properties

6005A6011

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

69.5 GPa10.1 Msi
69 GPa10 Msi

Tensile Strength (Ultimate)

275 MPa39.9 ksi
380 MPa55.1 ksi

Yield Strength (0.2% offset)

235 MPa34.1 ksi
330 MPa47.9 ksi

Elongation at Break

11%
12%

Compressive Strength

235 MPa34.1 ksi
—

Shear Strength

180 MPa26.1 ksi
230 MPa33.4 ksi

Fatigue Strength (Endurance Limit)

90 MPa13.1 ksi
105 MPa15.2 ksi

Fracture Toughness (K_IC)

29 MPa·√m26.4 ksi·√in
30 MPa·√m27.3 ksi·√in

Charpy V-Notch Impact (RT)

18 J13.3 ft·lbf
—

Hardness, Brinell

95 HB
110 HB

Hardness, Vickers

100 HV
—

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

Physical

Density and transition temperatures.

Density

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

Melting Point (Solidus)

607°C1,125 °F
585°C1,085 °F

Liquidus Temperature

654°C1,209 °F
650°C1,202 °F

Thermal

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

Thermal Conductivity

190 W/m·K110 BTU/hr·ft·°F
165 W/m·K95.3 BTU/hr·ft·°F

Specific Heat Capacity

897 J/kg·K0.21 BTU/lb·°F
896 J/kg·K0.21 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

23 µm/m·K12.8 µin/in·°F
23.4 µm/m·K13 µin/in·°F

Latent Heat of Fusion

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

Same in both: Max Service Temperature (continuous) 150°C302 °F · Min Service Temperature -196°C-321 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

49 % IACS
42 % IACS

Electrical Resistivity

3.5×10⁻⁸ Ω·m1.38 µΩ·in
4.1×10⁻⁸ Ω·m1.61 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.78 V
-0.77 V

Corrosion Resistance

68 / 100
55 / 100

Manufacturability

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

Machinability

62 / 100
82 / 100

Weldability

85 / 100
45 / 100

Formability (cold)

40 / 100
45 / 100

Castability

25 / 100
—

Brazeability / Solderability

45 / 100
35 / 100

Polishability

70 / 100
60 / 100

Same in both: Machinability Rating (AISI 1212 = 100 %) 190%

Sustainability

Primary-production footprint per kilogram.

Embodied Carbon (primary production)

12.5 kg CO₂/kg
12 kg CO₂/kg

Embodied Water

1,200 L/kg144 gal/lb
1,100 L/kg132 gal/lb

Typical Recycled Content

30%
35%

Same in both: Embodied Energy (primary production) 200 MJ/kg85,985 BTU/lb

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

102 kN·m/kg
140 kN·m/kg

Specific Stiffness (E / density)

25.7 MN·m/kg
25.4 MN·m/kg

Modulus of Resilience

397 kJ/m³
789 kJ/m³

Thermal Diffusivity

78.5 mm²/s
67.7 mm²/s

Thermal Shock Resistance Index

33
39

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 scale6005A6011

Manufacturing and finishing

Capability6005A6011
Default condition——
Relative cost$ Budget$ Budget
Min. machined wall0.5 mm0.5 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.

6005A vs 6011 — frequently asked

Is 6011 stronger than 6005A?

Yes. 6011 has a typical yield strength of 330 MPa (47.9 ksi) against 235 MPa (34.1 ksi) for 6005A — about 40% more. Tensile strength is 380 MPa (55.1 ksi) vs 275 MPa (39.9 ksi).

Which is cheaper, 6005A or 6011?

Both sit in the same relative cost tier ($, budget); the part price will be decided by machining time, tolerance and quantity rather than by the material.

Which is easier to machine, 6005A or 6011?

6011. Its machinability rates very good (82/100) against good (62/100) for 6005A; for welding the order is 6005A first (excellent, 85/100) then 6011 (fair, 45/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in 6005A and 6011 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.