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Aluminum 319 vs A206.0

Aluminum · grade comparison

Aluminum 319 and A206.0 are both aluminum grades. A206.0 is the stronger of the two: yield strength 264 MPa (38.3 ksi) against 124 MPa (18 ksi) for 319, about 113% more; tensile strength follows at 430 MPa (62.4 ksi) vs 186 MPa (27 ksi). A206.0 is the more ductile: elongation 17% versus 2% for 319, and A206.0 is harder (95 HB vs 70 HB). 319 runs hotter in service (200°C vs 150°C continuous) and A206.0 conducts electricity better (33 % IACS vs 27 % IACS). On the shop floor, 319 welds better (good vs poor) and 319 sits in a lower cost tier (budget, $) than A206.0 (premium, $$$).

319Choose it when the part sees heat, or when it will be welded.

A206.0Choose it when strength drives the design, or when the part is bent, formed or impact-loaded.

319 vs A206.0: properties

319A206.0

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

74 GPa10.7 Msi
71 GPa10.3 Msi

Shear Modulus

27.5 GPa4 Msi
26.5 GPa3.8 Msi

Bulk Modulus

72 GPa10.4 Msi
70 GPa10.2 Msi

Tensile Strength (Ultimate)

186 MPa27 ksi
430 MPa62.4 ksi

Yield Strength (0.2% offset)

124 MPa18 ksi
264 MPa38.3 ksi

Elongation at Break

2%
17%

Shear Strength

150 MPa21.8 ksi
260 MPa37.7 ksi

Fatigue Strength (Endurance Limit)

69 MPa10 ksi
105 MPa15.2 ksi

Fracture Toughness (K_IC)

19 MPa·√m17.3 ksi·√in
36 MPa·√m32.8 ksi·√in

Charpy V-Notch Impact (RT)

4 J3 ft·lbf
—

Hardness, Brinell

70 HB
95 HB

Compressive Strength

—
270 MPa39.2 ksi

Hardness, Vickers

—
100 HV

Same in both: Poisson's Ratio 0.33

Physical

Density and transition temperatures.

Density

2.79 g/cm³0.1 lb/in³
2.8 g/cm³0.1 lb/in³

Melting Point (Solidus)

521°C970 °F
570°C1,058 °F

Liquidus Temperature

604°C1,119 °F
650°C1,202 °F

Thermal

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

Thermal Conductivity

109 W/m·K63 BTU/hr·ft·°F
121 W/m·K69.9 BTU/hr·ft·°F

Specific Heat Capacity

963 J/kg·K0.23 BTU/lb·°F
921 J/kg·K0.22 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

21.5 µm/m·K11.9 µin/in·°F
22.5 µm/m·K12.5 µin/in·°F

Latent Heat of Fusion

389 J/g167 BTU/lb
390 J/g168 BTU/lb

Max Service Temperature (continuous)

200°C392 °F
150°C302 °F

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

Electrical

Conductivity and insulation.

Electrical Conductivity

27 % IACS
33 % IACS

Electrical Resistivity

6.4×10⁻⁸ Ω·m2.52 µΩ·in
5.2×10⁻⁸ Ω·m2.05 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.78 V
-0.72 V

Corrosion Resistance

35 / 100
30 / 100

Manufacturability

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

Machinability

72 / 100
78 / 100

Machinability Rating (AISI 1212 = 100 %)

130%
70%

Weldability

55 / 100
30 / 100

Formability (cold)

5 / 100
10 / 100

Castability

90 / 100
28 / 100

Brazeability / Solderability

25 / 100
15 / 100

Polishability

40 / 100
60 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Carbon (primary production)

12 kg CO₂/kg
12.5 kg CO₂/kg

Typical Recycled Content

75%
15%

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)

67 kN·m/kg
154 kN·m/kg

Specific Stiffness (E / density)

26.5 MN·m/kg
25.4 MN·m/kg

Modulus of Resilience

104 kJ/m³
491 kJ/m³

Thermal Diffusivity

40.6 mm²/s
46.9 mm²/s

Thermal Shock Resistance Index

13
33

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 scale319A206.0

Manufacturing and finishing

Capability319A206.0
CNC machiningYes—
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.

319 vs A206.0 — frequently asked

Is A206.0 stronger than 319?

Yes. A206.0 has a typical yield strength of 264 MPa (38.3 ksi) against 124 MPa (18 ksi) for 319 — about 113% more. Tensile strength is 430 MPa (62.4 ksi) vs 186 MPa (27 ksi).

Which is cheaper, 319 or A206.0?

319 is the lower-cost material: it sits in the budget tier ($) while A206.0 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 is easier to machine, 319 or A206.0?

A206.0, by a small margin. Both rate very good for machinability — 78/100 against 72/100 for 319; for welding the order is 319 first (good, 55/100) then A206.0 (poor, 30/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in 319 and A206.0 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.