Aluminum 7005-T5 vs 7005-T73
Aluminum · 7005 temper comparison
7005-T5 and 7005-T73 are two conditions of the same aluminum grade, 7005: T5 (cooled from hot working and artificially aged) versus T73 (solution heat treated and overaged for stress-corrosion resistance). The chemistry is identical, so every difference below comes from the condition. 7005-T5 is the stronger of the two: yield strength 285 MPa (41.3 ksi) against 255 MPa (37 ksi) for 7005-T73, about 12% more; tensile strength follows at 330 MPa (47.9 ksi) vs 310 MPa (45 ksi). In exchange, 7005-T73 is the more ductile: elongation 14% versus 12% for 7005-T5, and 7005-T5 is harder (90 HB vs 85 HB). 7005-T73 runs hotter in service (150°C vs 120°C continuous).
7005-T5Choose it when strength drives the design.
7005-T73Choose it when the part is bent, formed or impact-loaded, or when the part sees heat.
7005-T5 vs 7005-T73: 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
Compressive Strength
Shear Strength
Fatigue Strength (Endurance Limit)
Fracture Toughness (K_IC)
Hardness, Brinell
Hardness, Vickers
Same in both: Elastic (Young's) Modulus 72 GPa10.4 Msi · Shear Modulus 27 GPa3.9 Msi · Bulk Modulus 71 GPa10.3 Msi · Poisson's Ratio 0.33
Physical
Density and transition temperatures.
Same in both: Density 2.78 g/cm³0.1 lb/in³ · Melting Point (Solidus) 607°C1,125 °F · Liquidus Temperature 645°C1,193 °F
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Max Service Temperature (continuous)
Same in both: Specific Heat Capacity 900 J/kg·K0.21 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 23.8 µm/m·K13.2 µin/in·°F · Latent Heat of Fusion 390 J/g168 BTU/lb · Min Service Temperature -196°C-321 °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) -0.84 V
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability Rating (AISI 1212 = 100 %)
Formability (cold)
Same in both: Machinability 58 / 100 · Weldability 80 / 100 · Castability 25 / 100 · Brazeability / Solderability 20 / 100 · Polishability 55 / 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 1,200 L/kg144 gal/lb · Typical Recycled Content 30%
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.
7005-T5 vs 7005-T73 — frequently asked
Is 7005-T5 stronger than 7005-T73?
Yes. 7005-T5 has a typical yield strength of 285 MPa (41.3 ksi) against 255 MPa (37 ksi) for 7005-T73 — about 12% more. Tensile strength is 330 MPa (47.9 ksi) vs 310 MPa (45 ksi).
Which condition does FabDigit quote by default, T5 or T73?
Specify the condition in the material field or the drawing note; FabDigit prices the quote for the state you call out.
When should I choose 7005-T5 over 7005-T73?
Pick 7005-T5 when strength drives the design. Pick 7005-T73 when the part is bent, formed or impact-loaded, or when the part sees heat.
Ready to make it?
Upload a CAD file and FabDigit prices the part in 7005-T5 and 7005-T73 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.