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Aluminum 2319 vs ER5254

Aluminum · grade comparison

Aluminum 2319 and ER5254 are both aluminum grades. ER5254 is the stronger of the two: yield strength 120 MPa (17.4 ksi) against 110 MPa (16 ksi) for 2319, about 9% more; tensile strength follows at 250 MPa (36.3 ksi) vs 200 MPa (29 ksi). ER5254 is the more ductile: elongation 20% versus 16% for 2319. ER5254 is lighter (2.66 g/cm³ vs 2.84 g/cm³ for 2319) and 2319 runs hotter in service (175°C vs 65°C continuous). On the shop floor, 2319 machines more easily (good vs fair) and 2319 sits in a lower cost tier (premium, $$$) than ER5254 (high, $$$$).

2319Choose it when the part sees heat, or when the part is machined in volume.

ER5254Choose it when strength drives the design, or when the part is bent, formed or impact-loaded.

2319 vs ER5254: properties

2319ER5254

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

73 GPa10.6 Msi
70.3 GPa10.2 Msi

Shear Modulus

27 GPa3.9 Msi
26.4 GPa3.8 Msi

Bulk Modulus

75 GPa10.9 Msi
69 GPa10 Msi

Tensile Strength (Ultimate)

200 MPa29 ksi
250 MPa36.3 ksi

Yield Strength (0.2% offset)

110 MPa16 ksi
120 MPa17.4 ksi

Elongation at Break

16%
20%

Shear Strength

130 MPa18.9 ksi
150 MPa21.8 ksi

Fatigue Strength (Endurance Limit)

70 MPa10.2 ksi
115 MPa16.7 ksi

Fracture Toughness (K_IC)

32 MPa·√m29.1 ksi·√in
—

Hardness, Brinell

60 HB
58 HB

Charpy V-Notch Impact (RT)

—
25 J18.4 ft·lbf

Same in both: Poisson's Ratio 0.33

Physical

Density and transition temperatures.

Density

2.84 g/cm³0.1 lb/in³
2.66 g/cm³0.1 lb/in³

Melting Point (Solidus)

543°C1,009 °F
593°C1,099 °F

Same in both: Liquidus Temperature 643°C1,189 °F

Thermal

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

Thermal Conductivity

170 W/m·K98.2 BTU/hr·ft·°F
126 W/m·K72.8 BTU/hr·ft·°F

Specific Heat Capacity

864 J/kg·K0.21 BTU/lb·°F
900 J/kg·K0.21 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

22.3 µm/m·K12.4 µin/in·°F
23.9 µm/m·K13.3 µin/in·°F

Latent Heat of Fusion

385 J/g166 BTU/lb
395 J/g170 BTU/lb

Max Service Temperature (continuous)

175°C347 °F
65°C149 °F

Min Service Temperature

-253°C-423 °F
-196°C-321 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

44 % IACS
35 % IACS

Electrical Resistivity

3.9×10⁻⁸ Ω·m1.54 µΩ·in
4.9×10⁻⁸ Ω·m1.93 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.64 V
-0.86 V

Corrosion Resistance

32 / 100
78 / 100

Manufacturability

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

Machinability

62 / 100
48 / 100

Machinability Rating (AISI 1212 = 100 %)

55%
50%

Weldability

92 / 100
88 / 100

Formability (cold)

55 / 100
75 / 100

Castability

60 / 100
—

Brazeability / Solderability

20 / 100
15 / 100

Same in both: Polishability 55 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

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

Embodied Water

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

Typical Recycled Content

10%
15%

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

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

70 kN·m/kg
94 kN·m/kg

Specific Stiffness (E / density)

25.7 MN·m/kg
26.4 MN·m/kg

Modulus of Resilience

83 kJ/m³
102 kJ/m³

Thermal Diffusivity

69.3 mm²/s
52.6 mm²/s

Thermal Shock Resistance Index

21
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 scale2319ER5254

Manufacturing and finishing

Capability2319ER5254
CNC machiningYes—
Sheet metalYes—
Default condition——
Relative cost$$$ Premium$$$$ High
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.

2319 vs ER5254 — frequently asked

Is ER5254 stronger than 2319?

Yes. ER5254 has a typical yield strength of 120 MPa (17.4 ksi) against 110 MPa (16 ksi) for 2319 — about 9% more. Tensile strength is 250 MPa (36.3 ksi) vs 200 MPa (29 ksi).

Which is cheaper, 2319 or ER5254?

2319 is the lower-cost material: it sits in the premium tier ($$$) while ER5254 is high ($$$$). 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, 2319 or ER5254?

2319. Its machinability rates good (62/100) against fair (48/100) for ER5254.

Ready to make it?

Upload a CAD file and FabDigit prices the part in 2319 and ER5254 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.