Aluminum 319 vs ZL112
Aluminum · grade comparison
Aluminum 319 and ZL112 are both aluminum grades. ZL112 is the stronger of the two: tensile strength 235 MPa (34.1 ksi) against 186 MPa (27 ksi) for 319, about 26% more. ZL112 is the more ductile: elongation 2.5% versus 2% for 319, and ZL112 is harder (85 HB vs 70 HB). On the shop floor, 319 welds better (good vs fair) and 319 sits in a lower cost tier (budget, $) than ZL112 (standard, $$).
319Choose it when it will be welded, or when cost is the deciding factor.
ZL112Choose it when strength drives the design, or when the part is bent, formed or impact-loaded.
319 vs ZL112: 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.
Shear Modulus
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Shear Strength
Fracture Toughness (K_IC)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Compressive Strength
Same in both: Elastic (Young's) Modulus 74 GPa10.7 Msi · Bulk Modulus 72 GPa10.4 Msi · Poisson's Ratio 0.33 · Fatigue Strength (Endurance Limit) 69 MPa10 ksi
Physical
Density and transition temperatures.
Melting Point (Solidus)
Same in both: Density 2.79 g/cm³0.1 lb/in³ · Liquidus Temperature 604°C1,119 °F
Thermal
How each material carries heat and how hot it can run.
Same in both: Thermal Conductivity 109 W/m·K63 BTU/hr·ft·°F · Specific Heat Capacity 963 J/kg·K0.23 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 21.5 µm/m·K11.9 µin/in·°F · Latent Heat of Fusion 389 J/g167 BTU/lb · Max Service Temperature (continuous) 200°C392 °F · Min Service Temperature -196°C-321 °F
Electrical
Conductivity and insulation.
Same in both: Electrical Conductivity 27 % IACS · Electrical Resistivity 6.4×10⁻⁸ Ω·m2.52 µΩ·in
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Galvanic Potential (seawater, vs SCE)
Corrosion Resistance
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Machinability Rating (AISI 1212 = 100 %)
Weldability
Castability
Brazeability / Solderability
Polishability
Same in both: Formability (cold) 5 / 100
Sustainability
Primary-production footprint per kilogram.
Typical Recycled Content
Same in both: Embodied Energy (primary production) 200 MJ/kg85,985 BTU/lb · Embodied Carbon (primary production) 12 kg CO₂/kg · Embodied Water 1,200 L/kg144 gal/lb
Common Calculations
Ratios derived from the values above.
Specific Strength (UTS / density)
Modulus of Resilience
Thermal Shock Resistance Index
Same in both: Specific Stiffness (E / density) 26.5 MN·m/kg · Thermal Diffusivity 40.6 mm²/s
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 | 319 | ZL112 |
|---|---|---|
| CNC machining | Yes | — |
| Default condition | — | — |
| Relative cost | $ Budget | $$ Standard |
| 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.
319 vs ZL112 — frequently asked
Is ZL112 stronger than 319?
Yes. ZL112 has a typical tensile strength of 235 MPa (34.1 ksi) against 186 MPa (27 ksi) for 319 — about 26% more.
Which is cheaper, 319 or ZL112?
319 is the lower-cost material: it sits in the budget tier ($) while ZL112 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 ZL112?
319. Its machinability rates very good (72/100) against good (65/100) for ZL112; for welding the order is 319 first (good, 55/100) then ZL112 (fair, 45/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in 319 and ZL112 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.