Aluminum 2319 vs BAlSi-3
Aluminum · grade comparison
Aluminum 2319 and BAlSi-3 are both aluminum grades. Both yield at about 110 MPa — strength does not separate them. 2319 is the more ductile: elongation 16% versus 3% for BAlSi-3, and BAlSi-3 is harder (70 HB vs 60 HB). BAlSi-3 is lighter (2.75 g/cm³ vs 2.84 g/cm³ for 2319) and 2319 runs hotter in service (175°C vs 150°C continuous). On the shop floor, 2319 machines more easily (good vs fair), 2319 welds better (excellent vs poor), and 2319 sits in a lower cost tier (premium, $$$) than BAlSi-3 (high, $$$$).
2319Choose it when the part is bent, formed or impact-loaded, or when the part sees heat.
BAlSi-3Choose it when weight is the constraint.
2319 vs BAlSi-3: propertiesHow to read these bars
- One bar per material. A full bar is the highest value among all aluminum grades in the FabDigit library; each bar is drawn as a share of that.
- The better value (by the usual engineering direction) is in bold. Rows with no direction — density, thermal conductivity — have no bold.
- Values are typical room-temperature figures for the condition named on each card.
- Confirm against the certified mill or resin datasheet before design release.
How to read these bars
- One bar per material. A full bar is the highest value among all aluminum grades in the FabDigit library; each bar is drawn as a share of that.
- The better value (by the usual engineering direction) is in bold. Rows with no direction — density, thermal conductivity — have no bold.
- Values are typical room-temperature figures for the condition named on each card.
- Confirm against the certified mill or resin datasheet before design release.
Mechanical
Strength, stiffness, ductility and hardness at room temperature.
Elastic (Young's) Modulus
Shear Modulus
Bulk Modulus
Tensile Strength (Ultimate)
Elongation at Break
Shear Strength
Fatigue Strength (Endurance Limit)
Fracture Toughness (K_IC)
Hardness, Brinell
Compressive Strength
Hardness, Vickers
Same in both: Poisson's Ratio 0.33 · Yield Strength (0.2% offset) 110 MPa16 ksi
Physical
Density and transition temperatures.
Density
Melting Point (Solidus)
Liquidus Temperature
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Specific Heat Capacity
Thermal Expansion (CTE, 20–100 °C)
Latent Heat of Fusion
Max Service Temperature (continuous)
Min Service Temperature
Electrical
Conductivity and insulation.
Electrical Conductivity
Electrical Resistivity
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Galvanic Potential (seawater, vs SCE)
Same in both: Corrosion Resistance 32 / 100
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Machinability Rating (AISI 1212 = 100 %)
Weldability
Formability (cold)
Castability
Brazeability / Solderability
Polishability
Sustainability
Primary-production footprint per kilogram.
Embodied Energy (primary production)
Typical Recycled Content
Same in both: Embodied Carbon (primary production) 12.5 kg CO₂/kg · Embodied Water 1,150 L/kg138 gal/lb
Common Calculations
Ratios derived from the values above.
Specific Strength (UTS / density)
Specific Stiffness (E / density)
Modulus of Resilience
Thermal Diffusivity
Thermal Shock Resistance Index
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.
Manufacturing and finishing
| Capability | 2319 | BAlSi-3 |
|---|---|---|
| CNC machining | Yes | — |
| Sheet metal | Yes | — |
| Default condition | — | — |
| Relative cost | $$$ Premium | $$$$ High |
| Min. machined wall | 0.5 mm | — |
| Best machined surface | Ra 0.8 µm | — |
| Anodizing Type II | Yes | — |
| Cerakote | Yes | — |
| Chem Film (Alodine) | Yes | — |
| DLC | Yes | — |
| E-Coating | Yes | — |
| Electropolishing | Yes | — |
| Hard Anodize Type III w/ PTFE | Yes | — |
| Hard Anodizing Type III | Yes | — |
| Nickel Plating | Yes | — |
| PTFE Coating | Yes | — |
| Painting | Yes | — |
| Powder Coating | Yes | — |
They share 4 finishes: Electroless Nickel (EN), Epoxy Coating, Gold Plating, Silver Plating.
2319 vs BAlSi-3 — frequently asked
What is the difference between 2319 and BAlSi-3?
Aluminum 2319 and BAlSi-3 are both aluminum grades. Both yield at about 110 MPa — strength does not separate them. 2319 is the more ductile: elongation 16% versus 3% for BAlSi-3, and BAlSi-3 is harder (70 HB vs 60 HB).
Which is cheaper, 2319 or BAlSi-3?
2319 is the lower-cost material: it sits in the premium tier ($$$) while BAlSi-3 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 BAlSi-3?
2319. Its machinability rates good (62/100) against fair (45/100) for BAlSi-3; for welding the order is 2319 first (excellent, 92/100) then BAlSi-3 (poor, 25/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in 2319 and BAlSi-3 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.