Aluminum 354.0-T61 vs 354.0-T62
Aluminum · 354.0 temper comparison
354.0-T61 and 354.0-T62 are two conditions of the same aluminum grade, 354.0: T61 (T6 variant, underaged) versus T62 (T6, heat treated by the user). The chemistry is identical, so every difference below comes from the condition. 354.0-T62 is the stronger of the two: yield strength 290 MPa (42.1 ksi) against 255 MPa (37 ksi) for 354.0-T61, about 14% more; tensile strength follows at 360 MPa (52.2 ksi) vs 330 MPa (47.9 ksi). In exchange, 354.0-T61 is the more ductile: elongation 3% versus 2% for 354.0-T62, and 354.0-T62 is harder (115 HB vs 100 HB).
354.0-T61Choose it when the part is bent, formed or impact-loaded.
354.0-T62Choose it when strength drives the design.
354.0-T61 vs 354.0-T62: 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 74 GPa10.7 Msi · Shear Modulus 27.5 GPa4 Msi · Bulk Modulus 72 GPa10.4 Msi · Poisson's Ratio 0.33
Physical
Density and transition temperatures.
Same in both: Density 2.71 g/cm³0.1 lb/in³ · Melting Point (Solidus) 538°C1,000 °F · Liquidus Temperature 599°C1,110 °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 µm/m·K11.7 µin/in·°F · Latent Heat of Fusion 389 J/g167 BTU/lb · Max Service Temperature (continuous) 175°C347 °F · 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) -0.78 V
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Machinability Rating (AISI 1212 = 100 %)
Same in both: Weldability 35 / 100 · Formability (cold) 8 / 100 · Castability 88 / 100 · Brazeability / Solderability 25 / 100 · Polishability 50 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 205 MJ/kg88,134 BTU/lb · Embodied Carbon (primary production) 12.5 kg CO₂/kg · Embodied Water 1,150 L/kg138 gal/lb · Typical Recycled Content 20%
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.
354.0-T61 vs 354.0-T62 — frequently asked
Is 354.0-T62 stronger than 354.0-T61?
Yes. 354.0-T62 has a typical yield strength of 290 MPa (42.1 ksi) against 255 MPa (37 ksi) for 354.0-T61 — about 14% more. Tensile strength is 360 MPa (52.2 ksi) vs 330 MPa (47.9 ksi).
Which condition does FabDigit quote by default, T61 or T62?
T61 is the default 354.0 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 354.0-T61 over 354.0-T62?
Pick 354.0-T61 when the part is bent, formed or impact-loaded. Pick 354.0-T62 when strength drives the design.
Ready to make it?
Upload a CAD file and FabDigit prices the part in 354.0-T61 and 354.0-T62 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.