Aluminum 443 B443-F vs 443-T5
Aluminum · 443 temper comparison
443 B443-F and 443-T5 are two conditions of the same aluminum grade, 443: B443-F (B443.0-F) versus T5 (cooled from hot working and artificially aged). The chemistry is identical, so every difference below comes from the condition. 443-T5 is the stronger of the two: yield strength 60 MPa (8.7 ksi) against 41 MPa (5.95 ksi) for 443 B443-F, about 46% more; tensile strength follows at 135 MPa (19.6 ksi) vs 117 MPa (17 ksi). 443-T5 is the more ductile: elongation 7% versus 6% for 443 B443-F, and 443-T5 is harder (42 HB vs 35 HB).
443-T5Choose it when strength drives the design, or when the part is bent, formed or impact-loaded.
443 B443-F vs 443-T5: 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
Fatigue Strength (Endurance Limit)
Fracture Toughness (K_IC)
Hardness, Brinell
Same in both: Elastic (Young's) Modulus 71 GPa10.3 Msi · Shear Modulus 26 GPa3.8 Msi · Bulk Modulus 70 GPa10.2 Msi · Poisson's Ratio 0.33
Physical
Density and transition temperatures.
Same in both: Density 2.69 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) 22.1 µm/m·K12.3 µin/in·°F · Latent Heat of Fusion 389 J/g167 BTU/lb · Max Service Temperature (continuous) 200°C392 °F · Min Service Temperature -195°C-319 °F
Electrical
Conductivity and insulation.
Electrical Conductivity
Electrical Resistivity
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Corrosion Resistance
Same in both: Galvanic Potential (seawater, vs SCE) -0.83 V
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Weldability
Same in both: Castability 90 / 100 · Brazeability / Solderability 35 / 100 · Polishability 45 / 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 kg CO₂/kg · Embodied Water 1,200 L/kg144 gal/lb · Typical Recycled Content 70%
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.
443 B443-F vs 443-T5 — frequently asked
Is 443-T5 stronger than 443 B443-F?
Yes. 443-T5 has a typical yield strength of 60 MPa (8.7 ksi) against 41 MPa (5.95 ksi) for 443 B443-F — about 46% more. Tensile strength is 135 MPa (19.6 ksi) vs 117 MPa (17 ksi).
Which condition does FabDigit quote by default, B443-F or T5?
Specify the condition in the material field or the drawing note; FabDigit prices the quote for the state you call out.
Which is easier to machine, 443 B443-F or 443-T5?
443-T5, by a small margin. Both rate fair for machinability — 47/100 against 42/100 for 443 B443-F.
Ready to make it?
Upload a CAD file and FabDigit prices the part in 443 B443-F and 443-T5 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.