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Aluminum 6005A vs 6111

Aluminum · grade comparison

Aluminum 6005A and 6111 are both aluminum grades. 6005A is the stronger of the two: yield strength 235 MPa (34.1 ksi) against 160 MPa (23.2 ksi) for 6111, about 47% more. In exchange, 6111 is the more ductile: elongation 26% versus 11% for 6005A, and 6005A is harder (95 HB vs 78 HB). 6005A runs hotter in service (150°C vs 120°C continuous) and 6005A conducts heat better (190 W/m·K vs 165 W/m·K). On the shop floor, 6005A welds better (excellent vs good) and 6005A sits in a lower cost tier (budget, $) than 6111 (standard, $$).

6005AChoose it when strength drives the design, or when the part sees heat.

6111Choose it when the part is bent, formed or impact-loaded.

6005A vs 6111: properties

6005A6111

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

69.5 GPa10.1 Msi
70 GPa10.2 Msi

Tensile Strength (Ultimate)

275 MPa39.9 ksi
295 MPa42.8 ksi

Yield Strength (0.2% offset)

235 MPa34.1 ksi
160 MPa23.2 ksi

Elongation at Break

11%
26%

Compressive Strength

235 MPa34.1 ksi
160 MPa23.2 ksi

Shear Strength

180 MPa26.1 ksi
190 MPa27.6 ksi

Fatigue Strength (Endurance Limit)

90 MPa13.1 ksi
100 MPa14.5 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
78 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
2.71 g/cm³0.1 lb/in³

Melting Point (Solidus)

607°C1,125 °F
560°C1,040 °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
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

Latent Heat of Fusion

393 J/g169 BTU/lb
390 J/g168 BTU/lb

Max Service Temperature (continuous)

150°C302 °F
120°C248 °F

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

Electrical

Conductivity and insulation.

Electrical Conductivity

49 % IACS
40 % IACS

Electrical Resistivity

3.5×10⁻⁸ Ω·m1.38 µΩ·in
4.3×10⁻⁸ Ω·m1.69 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.78 V
-0.74 V

Corrosion Resistance

68 / 100
58 / 100

Manufacturability

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

Machinability

62 / 100
65 / 100

Machinability Rating (AISI 1212 = 100 %)

190%
60%

Weldability

85 / 100
55 / 100

Formability (cold)

40 / 100
80 / 100

Castability

25 / 100
—

Brazeability / Solderability

45 / 100
30 / 100

Polishability

70 / 100
60 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Carbon (primary production)

12.5 kg CO₂/kg
12 kg CO₂/kg

Typical Recycled Content

30%
25%

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

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

102 kN·m/kg
109 kN·m/kg

Specific Stiffness (E / density)

25.7 MN·m/kg
25.8 MN·m/kg

Modulus of Resilience

397 kJ/m³
183 kJ/m³

Thermal Diffusivity

78.5 mm²/s
68 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 scale6005A6111

Manufacturing and finishing

Capability6005A6111
CNC machiningYes—
Default condition—T4
Relative cost$ Budget$$ Standard
Min. machined wall0.5 mm—
Best machined surfaceRa 0.8 µm—
DLCYes—

Both are offered for Sheet metal. They share 15 finishes: Anodizing Type II, Cerakote, Chem Film (Alodine), E-Coating, Electroless Nickel (EN), Electropolishing, Epoxy Coating, Gold Plating, Hard Anodize Type III w/ PTFE, Hard Anodizing Type III, Nickel Plating, PTFE Coating and 3 more.

6005A vs 6111 — frequently asked

Is 6005A stronger than 6111?

Yes. 6005A has a typical yield strength of 235 MPa (34.1 ksi) against 160 MPa (23.2 ksi) for 6111 — about 47% more. Tensile strength is 275 MPa (39.9 ksi) vs 295 MPa (42.8 ksi).

Which is cheaper, 6005A or 6111?

6005A is the lower-cost material: it sits in the budget tier ($) while 6111 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 welds better, 6005A or 6111?

6005A. Its weldability rates excellent (85/100) against good (55/100) for 6111.

Ready to make it?

Upload a CAD file and FabDigit prices the part in 6005A and 6111 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.