Aluminum A444.0-F vs A444.0-T4
Aluminum · A444.0 temper comparison
A444.0-F and A444.0-T4 are two conditions of the same aluminum grade, A444.0: F (as fabricated) versus T4 (solution heat treated and naturally aged). The chemistry is identical, so every difference below comes from the condition. A444.0-F is the stronger of the two: yield strength 76 MPa (11 ksi) against 62 MPa (8.99 ksi) for A444.0-T4, about 23% more. In exchange, A444.0-T4 is the more ductile: elongation 21% versus 13% for A444.0-F.
A444.0-FChoose it when strength drives the design.
A444.0-T4Choose it when the part is bent, formed or impact-loaded.
A444.0-F vs A444.0-T4: 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.
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Shear Strength
Same in both: Elastic (Young's) Modulus 71 GPa10.3 Msi · Shear Modulus 26.5 GPa3.8 Msi · Bulk Modulus 70 GPa10.2 Msi · Poisson's Ratio 0.33 · Compressive Strength 65 MPa9.4 ksi · Fatigue Strength (Endurance Limit) 55 MPa8 ksi · Fracture Toughness (K_IC) 25 MPa·√m22.8 ksi·√in · Hardness, Brinell 44 HB
Physical
Density and transition temperatures.
Same in both: Density 2.68 g/cm³0.1 lb/in³ · Melting Point (Solidus) 577°C1,071 °F · Liquidus Temperature 632°C1,170 °F
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Same in both: 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) 150°C302 °F · Min Service Temperature -196°C-321 °F
Electrical
Conductivity and insulation.
Electrical Conductivity
Same in both: Electrical Resistivity 4.2×10⁻⁸ Ω·m1.65 µΩ·in
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Same in both: Galvanic Potential (seawater, vs SCE) -0.83 V · Corrosion Resistance 58 / 100
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Same in both: Weldability 82 / 100 · Formability (cold) 35 / 100 · Castability 88 / 100 · Brazeability / Solderability 45 / 100 · Polishability 50 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 200 MJ/kg85,985 BTU/lb · Embodied Carbon (primary production) 12.5 kg CO₂/kg · Embodied Water 1,100 L/kg132 gal/lb · Typical Recycled Content 55%
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.
A444.0-F vs A444.0-T4 — frequently asked
Is A444.0-F stronger than A444.0-T4?
Yes. A444.0-F has a typical yield strength of 76 MPa (11 ksi) against 62 MPa (8.99 ksi) for A444.0-T4 — about 23% more. Tensile strength is 145 MPa (21 ksi) vs 159 MPa (23.1 ksi).
Which condition does FabDigit quote by default, F or T4?
T4 is the default A444.0 condition in the FabDigit quote flow. The other condition is available on request or by drawing note — specify it in the material field or the part notes and the quote is priced for it.
When should I choose A444.0-F over A444.0-T4?
Pick A444.0-F when strength drives the design. Pick A444.0-T4 when the part is bent, formed or impact-loaded.
Ready to make it?
Upload a CAD file and FabDigit prices the part in A444.0-F and A444.0-T4 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.