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Aluminum 6005A vs 6069

Aluminum · grade comparison

Aluminum 6005A and 6069 are both aluminum grades. 6069 is the stronger of the two: yield strength 380 MPa (55.1 ksi) against 235 MPa (34.1 ksi) for 6005A, about 62% more; tensile strength follows at 415 MPa (60.2 ksi) vs 275 MPa (39.9 ksi). 6069 is harder — 120 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, 6005A welds better (excellent vs good), 6005A forms better (fair vs poor), and 6005A sits in a lower cost tier (budget, $) than 6069 (premium, $$$).

6005AChoose it when it will be welded, or when cost is the deciding factor.

6069Choose it when strength drives the design, or when surface hardness matters.

6005A vs 6069: properties

6005A6069

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

275 MPa39.9 ksi
415 MPa60.2 ksi

Yield Strength (0.2% offset)

235 MPa34.1 ksi
380 MPa55.1 ksi

Elongation at Break

11%
12%

Compressive Strength

235 MPa34.1 ksi
385 MPa55.8 ksi

Shear Strength

180 MPa26.1 ksi
250 MPa36.3 ksi

Fatigue Strength (Endurance Limit)

90 MPa13.1 ksi
130 MPa18.9 ksi

Fracture Toughness (K_IC)

29 MPa·√m26.4 ksi·√in
28 MPa·√m25.5 ksi·√in

Charpy V-Notch Impact (RT)

18 J13.3 ft·lbf
12 J8.9 ft·lbf

Hardness, Brinell

95 HB
120 HB

Hardness, Vickers

100 HV
130 HV

Reduction in Area

—
30%

Hardness, Rockwell B

—
75 HRB

Same in both: Elastic (Young's) Modulus 69.5 GPa10.1 Msi · 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
580°C1,076 °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
23.2 µm/m·K12.9 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
40 % IACS

Electrical Resistivity

3.5×10⁻⁸ Ω·m1.38 µΩ·in
4.31×10⁻⁸ Ω·m1.7 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.78 V
-0.76 V

Corrosion Resistance

68 / 100
55 / 100

Manufacturability

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

Machinability

62 / 100
58 / 100

Machinability Rating (AISI 1212 = 100 %)

190%
55%

Weldability

85 / 100
60 / 100

Formability (cold)

40 / 100
30 / 100

Castability

25 / 100
35 / 100

Brazeability / Solderability

45 / 100
35 / 100

Polishability

70 / 100
60 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

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

Embodied Water

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

Typical Recycled Content

30%
25%

Same in both: Embodied Carbon (primary production) 12.5 kg CO₂/kg

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

102 kN·m/kg
153 kN·m/kg

Specific Stiffness (E / density)

25.7 MN·m/kg
25.6 MN·m/kg

Modulus of Resilience

397 kJ/m³
1,039 kJ/m³

Thermal Diffusivity

78.5 mm²/s
68 mm²/s

Thermal Shock Resistance Index

33
42

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 scale6005A6069

Manufacturing and finishing

Capability6005A6069
CNC machiningYes—
Sheet metalYes—
Default condition——
Relative cost$ Budget$$$ Premium
Min. machined wall0.5 mm—
Best machined surfaceRa 0.8 µm—
Anodizing Type IIYes—
CerakoteYes—
Chem Film (Alodine)Yes—
DLCYes—
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.

6005A vs 6069 — frequently asked

Is 6069 stronger than 6005A?

Yes. 6069 has a typical yield strength of 380 MPa (55.1 ksi) against 235 MPa (34.1 ksi) for 6005A — about 62% more. Tensile strength is 415 MPa (60.2 ksi) vs 275 MPa (39.9 ksi).

Which is cheaper, 6005A or 6069?

6005A is the lower-cost material: it sits in the budget tier ($) while 6069 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 welds better, 6005A or 6069?

6005A. Its weldability rates excellent (85/100) against good (60/100) for 6069.

Ready to make it?

Upload a CAD file and FabDigit prices the part in 6005A and 6069 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.