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Aluminum 319 vs 511.0

Aluminum · grade comparison

Aluminum 319 and 511.0 are both aluminum grades. 319 is the stronger of the two: yield strength 124 MPa (18 ksi) against 83 MPa (12 ksi) for 511.0, about 49% more; tensile strength follows at 186 MPa (27 ksi) vs 145 MPa (21 ksi). In exchange, 511.0 is the more ductile: elongation 3% versus 2% for 319, and 319 is harder (70 HB vs 50 HB). 511.0 is lighter (2.65 g/cm³ vs 2.79 g/cm³ for 319) and 319 runs hotter in service (200°C vs 120°C continuous). On the shop floor, 511.0 machines more easily (excellent vs very good), 511.0 welds better (very good vs good), and 319 sits in a lower cost tier (budget, $) than 511.0 (standard, $$).

319Choose it when strength drives the design, or when the part sees heat.

511.0Choose it when the part is bent, formed or impact-loaded, or when weight is the constraint.

319 vs 511.0: properties

319511.0

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
69 GPa10 Msi

Tensile Strength (Ultimate)

186 MPa27 ksi
145 MPa21 ksi

Yield Strength (0.2% offset)

124 MPa18 ksi
83 MPa12 ksi

Elongation at Break

2%
3%

Shear Strength

150 MPa21.8 ksi
110 MPa16 ksi

Fatigue Strength (Endurance Limit)

69 MPa10 ksi
55 MPa8 ksi

Fracture Toughness (K_IC)

19 MPa·√m17.3 ksi·√in
—

Charpy V-Notch Impact (RT)

4 J3 ft·lbf
—

Hardness, Brinell

70 HB
50 HB

Same in both: Poisson's Ratio 0.33

Physical

Density and transition temperatures.

Density

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

Melting Point (Solidus)

521°C970 °F
588°C1,090 °F

Liquidus Temperature

604°C1,119 °F
638°C1,180 °F

Thermal

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

Thermal Conductivity

109 W/m·K63 BTU/hr·ft·°F
141 W/m·K81.5 BTU/hr·ft·°F

Thermal Expansion (CTE, 20–100 °C)

21.5 µm/m·K11.9 µin/in·°F
24 µm/m·K13.3 µin/in·°F

Max Service Temperature (continuous)

200°C392 °F
120°C248 °F

Min Service Temperature

-196°C-321 °F
-195°C-319 °F

Same in both: Specific Heat Capacity 963 J/kg·K0.23 BTU/lb·°F · Latent Heat of Fusion 389 J/g167 BTU/lb

Electrical

Conductivity and insulation.

Electrical Conductivity

27 % IACS
36 % IACS

Electrical Resistivity

6.4×10⁻⁸ Ω·m2.52 µΩ·in
4.8×10⁻⁸ Ω·m1.89 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.78 V
-0.87 V

Corrosion Resistance

35 / 100
80 / 100

Manufacturability

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

Machinability

72 / 100
85 / 100

Machinability Rating (AISI 1212 = 100 %)

130%
—

Weldability

55 / 100
75 / 100

Formability (cold)

5 / 100
—

Castability

90 / 100
40 / 100

Brazeability / Solderability

25 / 100
20 / 100

Polishability

40 / 100
85 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

200 MJ/kg85,985 BTU/lb
175 MJ/kg75,237 BTU/lb

Embodied Carbon (primary production)

12 kg CO₂/kg
11.5 kg CO₂/kg

Embodied Water

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

Typical Recycled Content

75%
50%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

67 kN·m/kg
55 kN·m/kg

Specific Stiffness (E / density)

26.5 MN·m/kg
26.8 MN·m/kg

Modulus of Resilience

104 kJ/m³
49 kJ/m³

Thermal Diffusivity

40.6 mm²/s
55.3 mm²/s

Thermal Shock Resistance Index

13
12

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 scale319511.0

Manufacturing and finishing

Capability319511.0
CNC machiningYes—
Default condition——
Relative cost$ Budget$$ Standard
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 511.0 — frequently asked

Is 319 stronger than 511.0?

Yes. 319 has a typical yield strength of 124 MPa (18 ksi) against 83 MPa (12 ksi) for 511.0 — about 49% more. Tensile strength is 186 MPa (27 ksi) vs 145 MPa (21 ksi).

Which is cheaper, 319 or 511.0?

319 is the lower-cost material: it sits in the budget tier ($) while 511.0 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, 319 or 511.0?

511.0. Its machinability rates excellent (85/100) against very good (72/100) for 319; for welding the order is 511.0 first (very good, 75/100) then 319 (good, 55/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in 319 and 511.0 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.