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Aluminum 5050 vs 5082

Aluminum · grade comparison

Aluminum 5050 and 5082 are both aluminum grades. 5082 is the stronger of the two: tensile strength 275 MPa (39.9 ksi) against 170 MPa (24.7 ksi) for 5050, about 62% more. 5082 is the more ductile: elongation 20% versus 9% for 5050, and 5082 is harder (66 HB vs 46 HB). 5050 runs hotter in service (150°C vs 65°C continuous) and 5050 conducts heat better (191 W/m·K vs 120 W/m·K). On the shop floor, 5050 sits in a lower cost tier (budget, $) than 5082 (standard, $$).

5050Choose it when the part sees heat, or when cost is the deciding factor.

5082Choose it when strength drives the design, or when the part is bent, formed or impact-loaded.

5050 vs 5082: properties

50505082

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

68.9 GPa10 Msi
70 GPa10.2 Msi

Shear Modulus

25.9 GPa3.8 Msi
26.4 GPa3.8 Msi

Bulk Modulus

75 GPa10.9 Msi
69 GPa10 Msi

Tensile Strength (Ultimate)

170 MPa24.7 ksi
275 MPa39.9 ksi

Yield Strength (0.2% offset)

145 MPa21 ksi
140 MPa20.3 ksi

Elongation at Break

9%
20%

Shear Strength

115 MPa16.7 ksi
170 MPa24.7 ksi

Fatigue Strength (Endurance Limit)

90 MPa13.1 ksi
140 MPa20.3 ksi

Hardness, Brinell

46 HB
66 HB

Fracture Toughness (K_IC)

—
35 MPa·√m31.9 ksi·√in

Same in both: Poisson's Ratio 0.33

Physical

Density and transition temperatures.

Density

2.69 g/cm³0.1 lb/in³
2.65 g/cm³0.1 lb/in³

Melting Point (Solidus)

627°C1,161 °F
577°C1,071 °F

Liquidus Temperature

652°C1,206 °F
638°C1,180 °F

Thermal

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

Thermal Conductivity

191 W/m·K110 BTU/hr·ft·°F
120 W/m·K69.3 BTU/hr·ft·°F

Thermal Expansion (CTE, 20–100 °C)

23.8 µm/m·K13.2 µin/in·°F
24.2 µm/m·K13.4 µin/in·°F

Latent Heat of Fusion

397 J/g171 BTU/lb
395 J/g170 BTU/lb

Max Service Temperature (continuous)

150°C302 °F
65°C149 °F

Same in both: Specific Heat Capacity 900 J/kg·K0.21 BTU/lb·°F · Min Service Temperature -196°C-321 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

50 % IACS
29 % IACS

Electrical Resistivity

3.45×10⁻⁸ Ω·m1.36 µΩ·in
5.9×10⁻⁸ Ω·m2.32 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.83 V
-0.87 V

Corrosion Resistance

75 / 100
74 / 100

Manufacturability

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

Machinability

40 / 100
45 / 100

Weldability

85 / 100
88 / 100

Formability (cold)

80 / 100
78 / 100

Brazeability / Solderability

35 / 100
20 / 100

Polishability

70 / 100
60 / 100

Same in both: Machinability Rating (AISI 1212 = 100 %) 30%

Sustainability

Primary-production footprint per kilogram.

Embodied Carbon (primary production)

12 kg CO₂/kg
12.5 kg CO₂/kg

Embodied Water

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

Same in both: Embodied Energy (primary production) 200 MJ/kg85,985 BTU/lb · Typical Recycled Content 35%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

63 kN·m/kg
104 kN·m/kg

Specific Stiffness (E / density)

25.6 MN·m/kg
26.4 MN·m/kg

Modulus of Resilience

153 kJ/m³
140 kJ/m³

Thermal Diffusivity

78.9 mm²/s
50.3 mm²/s

Thermal Shock Resistance Index

20
19

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 scale50505082

Manufacturing and finishing

Capability50505082
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.

5050 vs 5082 — frequently asked

Is 5082 stronger than 5050?

Yes. 5082 has a typical tensile strength of 275 MPa (39.9 ksi) against 170 MPa (24.7 ksi) for 5050 — about 62% more.

Which is cheaper, 5050 or 5082?

5050 is the lower-cost material: it sits in the budget tier ($) while 5082 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, 5050 or 5082?

5082, by a small margin. Both rate fair for machinability — 45/100 against 40/100 for 5050.

Ready to make it?

Upload a CAD file and FabDigit prices the part in 5050 and 5082 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.