Aluminum A357-T6 vs A357-T62
Aluminum · A357 temper comparison
A357-T6 and A357-T62 are two conditions of the same aluminum grade, A357: T6 (solution heat treated and artificially aged) versus T62 (T6, heat treated by the user). The chemistry is identical, so every difference below comes from the condition. A357-T62 is the stronger of the two: yield strength 305 MPa (44.2 ksi) against 276 MPa (40 ksi) for A357-T6, about 11% more; tensile strength follows at 380 MPa (55.1 ksi) vs 345 MPa (50 ksi). A357-T62 is harder — 110 HB against 100 HB for A357-T6 — which matters for wear surfaces and threads.
A357-T62Choose it when strength drives the design, or when surface hardness matters.
A357-T6 vs A357-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)
Compressive Strength
Shear Strength
Fatigue Strength (Endurance Limit)
Fracture Toughness (K_IC)
Hardness, Brinell
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 · Elongation at Break 6%
Physical
Density and transition temperatures.
Same in both: Density 2.67 g/cm³0.1 lb/in³ · Melting Point (Solidus) 555°C1,031 °F · Liquidus Temperature 613°C1,135 °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
Electrical Resistivity
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.
Weldability
Same in both: Machinability 65 / 100 · Machinability Rating (AISI 1212 = 100 %) 70% · Formability (cold) 10 / 100 · Castability 95 / 100 · Brazeability / Solderability 25 / 100 · Polishability 55 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 190 MJ/kg81,685 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.
A357-T6 vs A357-T62 — frequently asked
Is A357-T62 stronger than A357-T6?
Yes. A357-T62 has a typical yield strength of 305 MPa (44.2 ksi) against 276 MPa (40 ksi) for A357-T6 — about 11% more. Tensile strength is 380 MPa (55.1 ksi) vs 345 MPa (50 ksi).
Which condition does FabDigit quote by default, T6 or T62?
Specify the condition in the material field or the drawing note; FabDigit prices the quote for the state you call out.
Which welds better, A357-T6 or A357-T62?
A357-T6. Its weldability rates very good (75/100) against very good (70/100) for A357-T62.
Ready to make it?
Upload a CAD file and FabDigit prices the part in A357-T6 and A357-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.