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Aluminum 6005A vs 6101

Aluminum · grade comparison

Aluminum 6005A and 6101 are both aluminum grades. 6005A is the stronger of the two: yield strength 235 MPa (34.1 ksi) against 195 MPa (28.3 ksi) for 6101, about 21% more; tensile strength follows at 275 MPa (39.9 ksi) vs 220 MPa (31.9 ksi). In exchange, 6101 is the more ductile: elongation 15% versus 11% for 6005A, and 6005A is harder (95 HB vs 71 HB). 6101 conducts heat better (218 W/m·K vs 190 W/m·K). On the shop floor, 6005A sits in a lower cost tier (budget, $) than 6101 (standard, $$).

6005AChoose it when strength drives the design, or when cost is the deciding factor.

6101Choose it when the part is bent, formed or impact-loaded.

6005A vs 6101: properties

6005A6101

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
220 MPa31.9 ksi

Yield Strength (0.2% offset)

235 MPa34.1 ksi
195 MPa28.3 ksi

Elongation at Break

11%
15%

Compressive Strength

235 MPa34.1 ksi
—

Shear Strength

180 MPa26.1 ksi
138 MPa20 ksi

Fatigue Strength (Endurance Limit)

90 MPa13.1 ksi
70 MPa10.2 ksi

Fracture Toughness (K_IC)

29 MPa·√m26.4 ksi·√in
—

Charpy V-Notch Impact (RT)

18 J13.3 ft·lbf
—

Hardness, Brinell

95 HB
71 HB

Hardness, Vickers

100 HV
78 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.

Melting Point (Solidus)

607°C1,125 °F
621°C1,150 °F

Same in both: Density 2.7 g/cm³0.1 lb/in³ · Liquidus Temperature 654°C1,209 °F

Thermal

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

Thermal Conductivity

190 W/m·K110 BTU/hr·ft·°F
218 W/m·K126 BTU/hr·ft·°F

Specific Heat Capacity

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

Thermal Expansion (CTE, 20–100 °C)

23 µm/m·K12.8 µin/in·°F
23.5 µm/m·K13.1 µin/in·°F

Min Service Temperature

-196°C-321 °F
-200°C-328 °F

Same in both: Latent Heat of Fusion 393 J/g169 BTU/lb · Max Service Temperature (continuous) 150°C302 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

49 % IACS
57 % IACS

Electrical Resistivity

3.5×10⁻⁸ Ω·m1.38 µΩ·in
3.02×10⁻⁸ Ω·m1.19 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

68 / 100
65 / 100

Same in both: Galvanic Potential (seawater, vs SCE) -0.78 V

Manufacturability

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

Machinability

62 / 100
55 / 100

Machinability Rating (AISI 1212 = 100 %)

190%
35%

Formability (cold)

40 / 100
55 / 100

Castability

25 / 100
—

Brazeability / Solderability

45 / 100
70 / 100

Polishability

70 / 100
65 / 100

Same in both: Weldability 85 / 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)

12.5 kg CO₂/kg
12 kg CO₂/kg

Embodied Water

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

Typical Recycled Content

30%
20%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

102 kN·m/kg
81 kN·m/kg

Specific Stiffness (E / density)

25.7 MN·m/kg
25.6 MN·m/kg

Modulus of Resilience

397 kJ/m³
276 kJ/m³

Thermal Diffusivity

78.5 mm²/s
90.2 mm²/s

Thermal Shock Resistance Index

33
30

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 scale6005A6101

Manufacturing and finishing

Capability6005A6101
Default condition——
Relative cost$ Budget$$ Standard
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 6101 — frequently asked

Is 6005A stronger than 6101?

Yes. 6005A has a typical yield strength of 235 MPa (34.1 ksi) against 195 MPa (28.3 ksi) for 6101 — about 21% more. Tensile strength is 275 MPa (39.9 ksi) vs 220 MPa (31.9 ksi).

Which is cheaper, 6005A or 6101?

6005A is the lower-cost material: it sits in the budget tier ($) while 6101 is standard ($$). 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, 6005A or 6101?

6005A, by a small margin. Both rate good for machinability — 62/100 against 55/100 for 6101.

Ready to make it?

Upload a CAD file and FabDigit prices the part in 6005A and 6101 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.