Aluminum 208.0 vs 319
Aluminum · grade comparison
Aluminum 208.0 and 319 are both aluminum grades. 319 is the stronger of the two: yield strength 124 MPa (18 ksi) against 97 MPa (14.1 ksi) for 208.0, about 28% more; tensile strength follows at 186 MPa (27 ksi) vs 145 MPa (21 ksi). In exchange, 208.0 is the more ductile: elongation 2.5% versus 2% for 319, and 319 is harder (70 HB vs 55 HB). 319 is stiffer (74 GPa vs 70 GPa) and 319 runs hotter in service (200°C vs 150°C continuous). On the shop floor, 319 welds better (good vs poor) and 319 sits in a lower cost tier (budget, $) than 208.0 (standard, $$).
208.0Choose it when the part is bent, formed or impact-loaded.
319Choose it when strength drives the design, or when the part sees heat.
208.0 vs 319: 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)
Yield Strength (0.2% offset)
Elongation at Break
Shear Strength
Fatigue Strength (Endurance Limit)
Hardness, Brinell
Fracture Toughness (K_IC)
Charpy V-Notch Impact (RT)
Same in both: Poisson's Ratio 0.33
Physical
Density and transition temperatures.
Liquidus Temperature
Same in both: Density 2.79 g/cm³0.1 lb/in³ · Melting Point (Solidus) 521°C970 °F
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Thermal Expansion (CTE, 20–100 °C)
Max Service Temperature (continuous)
Min Service Temperature
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
Electrical Resistivity
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Galvanic Potential (seawater, vs SCE)
Same in both: Corrosion Resistance 35 / 100
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Weldability
Castability
Brazeability / Solderability
Polishability
Machinability Rating (AISI 1212 = 100 %)
Formability (cold)
Sustainability
Primary-production footprint per kilogram.
Embodied Energy (primary production)
Embodied Carbon (primary production)
Typical Recycled Content
Same in both: Embodied Water 1,200 L/kg144 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 | 208.0 | 319 |
|---|---|---|
| CNC machining | — | Yes |
| Default condition | — | — |
| Relative cost | $$ Standard | $ Budget |
| 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.
208.0 vs 319 — frequently asked
Is 319 stronger than 208.0?
Yes. 319 has a typical yield strength of 124 MPa (18 ksi) against 97 MPa (14.1 ksi) for 208.0 — about 28% more. Tensile strength is 186 MPa (27 ksi) vs 145 MPa (21 ksi).
Which is cheaper, 208.0 or 319?
319 is the lower-cost material: it sits in the budget tier ($) while 208.0 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, 208.0 or 319?
208.0, 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 208.0 (poor, 30/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in 208.0 and 319 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.