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Aluminum 6005A vs 6061

Aluminum · grade comparison

Aluminum 6005A and 6061 are both aluminum grades, both multipurpose al. 6061 is the stronger of the two: yield strength 276 MPa (40 ksi) against 235 MPa (34.1 ksi) for 6005A, about 17% more; tensile strength follows at 310 MPa (45 ksi) vs 275 MPa (39.9 ksi). 6061 is harder — 107 HV against 100 HV for 6005A — which matters for wear surfaces and threads. 6061 runs hotter in service (170°C vs 150°C continuous) and 6005A conducts heat better (190 W/m·K vs 167 W/m·K).

6061Choose it when strength drives the design, or when surface hardness matters.

6005A vs 6061: properties

6005A6061

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

69.5 GPa10.1 Msi
68.9 GPa10 Msi

Tensile Strength (Ultimate)

275 MPa39.9 ksi
310 MPa45 ksi

Yield Strength (0.2% offset)

235 MPa34.1 ksi
276 MPa40 ksi

Elongation at Break

11%
12%

Compressive Strength

235 MPa34.1 ksi
276 MPa40 ksi

Shear Strength

180 MPa26.1 ksi
207 MPa30 ksi

Fatigue Strength (Endurance Limit)

90 MPa13.1 ksi
96 MPa13.9 ksi

Charpy V-Notch Impact (RT)

18 J13.3 ft·lbf
22 J16.2 ft·lbf

Hardness, Vickers

100 HV
107 HV

Reduction in Area

—
40%

Hardness, Rockwell B

—
60 HRB

Same in both: Shear Modulus 26 GPa3.8 Msi · Bulk Modulus 69 GPa10 Msi · Poisson's Ratio 0.33 · Fracture Toughness (K_IC) 29 MPa·√m26.4 ksi·√in · Hardness, Brinell 95 HB

Physical

Density and transition temperatures.

Melting Point (Solidus)

607°C1,125 °F
582°C1,080 °F

Liquidus Temperature

654°C1,209 °F
652°C1,206 °F

Same in both: Density 2.7 g/cm³0.1 lb/in³

Thermal

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

Thermal Conductivity

190 W/m·K110 BTU/hr·ft·°F
167 W/m·K96.5 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
23.6 µm/m·K13.1 µin/in·°F

Latent Heat of Fusion

393 J/g169 BTU/lb
397 J/g171 BTU/lb

Max Service Temperature (continuous)

150°C302 °F
170°C338 °F

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

Electrical

Conductivity and insulation.

Electrical Conductivity

49 % IACS
43 % IACS

Electrical Resistivity

3.5×10⁻⁸ Ω·m1.38 µΩ·in
3.99×10⁻⁸ Ω·m1.57 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.78 V
-0.83 V

Corrosion Resistance

68 / 100
55 / 100

Manufacturability

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

Machinability

62 / 100
70 / 100

Machinability Rating (AISI 1212 = 100 %)

190%
—

Formability (cold)

40 / 100
35 / 100

Castability

25 / 100
—

Brazeability / Solderability

45 / 100
60 / 100

Polishability

70 / 100
60 / 100

Same in both: Weldability 85 / 100

Sustainability

Primary-production footprint per kilogram.

Typical Recycled Content

30%
35%

Same in both: Embodied Energy (primary production) 200 MJ/kg85,985 BTU/lb · Embodied Carbon (primary production) 12.5 kg CO₂/kg · Embodied Water 1,200 L/kg144 gal/lb

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

102 kN·m/kg
115 kN·m/kg

Specific Stiffness (E / density)

25.7 MN·m/kg
25.5 MN·m/kg

Modulus of Resilience

397 kJ/m³
553 kJ/m³

Thermal Diffusivity

78.5 mm²/s
69 mm²/s

Thermal Shock Resistance Index

33
32

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 scale6005A6061

Manufacturing and finishing

Capability6005A6061
Default condition—T6
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 6061 — frequently asked

Is 6061 stronger than 6005A?

Yes. 6061 has a typical yield strength of 276 MPa (40 ksi) against 235 MPa (34.1 ksi) for 6005A — about 17% more. Tensile strength is 310 MPa (45 ksi) vs 275 MPa (39.9 ksi).

Which is cheaper, 6005A or 6061?

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 6061?

6061. Its machinability rates very good (70/100) against good (62/100) for 6005A.

Ready to make it?

Upload a CAD file and FabDigit prices the part in 6005A and 6061 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.