Aluminum 6262-T6 vs 6262-T651
Aluminum · 6262 temper comparison
6262-T6 and 6262-T651 are two conditions of the same aluminum grade, 6262: T6 (solution heat treated and artificially aged) versus T651 (T6, stress relieved by stretching). The chemistry is identical, so every difference below comes from the condition. 6262-T651 is the stronger of the two: yield strength 370 MPa (53.7 ksi) against 275 MPa (39.9 ksi) for 6262-T6, about 35% more; tensile strength follows at 400 MPa (58 ksi) vs 310 MPa (45 ksi). In exchange, 6262-T6 is the more ductile: elongation 12% versus 10% for 6262-T651, and 6262-T651 is harder (120 HB vs 95 HB).
6262-T6Choose it when the part is bent, formed or impact-loaded.
6262-T651Choose it when strength drives the design.
6262-T6 vs 6262-T651: 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
Hardness, Brinell
Hardness, Vickers
Same in both: Elastic (Young's) Modulus 69 GPa10 Msi · Shear Modulus 26 GPa3.8 Msi · Bulk Modulus 69 GPa10 Msi · Poisson's Ratio 0.33 · Fatigue Strength (Endurance Limit) 90 MPa13.1 ksi
Physical
Density and transition temperatures.
Same in both: Density 2.72 g/cm³0.1 lb/in³ · Melting Point (Solidus) 582°C1,080 °F · Liquidus Temperature 652°C1,206 °F
Thermal
How each material carries heat and how hot it can run.
Same in both: Thermal Conductivity 172 W/m·K99.4 BTU/hr·ft·°F · Specific Heat Capacity 895 J/kg·K0.21 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 23.4 µm/m·K13 µin/in·°F · Latent Heat of Fusion 393 J/g169 BTU/lb · Max Service Temperature (continuous) 150°C302 °F · Min Service Temperature -196°C-321 °F
Electrical
Conductivity and insulation.
Same in both: Electrical Conductivity 44 % IACS · Electrical Resistivity 3.9×10⁻⁸ Ω·m1.54 µΩ·in
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Same in both: Galvanic Potential (seawater, vs SCE) -0.8 V · Corrosion Resistance 65 / 100
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Same in both: Machinability Rating (AISI 1212 = 100 %) 180% · Weldability 30 / 100 · Formability (cold) 35 / 100 · Brazeability / Solderability 30 / 100 · Polishability 60 / 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 25%
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.
6262-T6 vs 6262-T651 — frequently asked
Is 6262-T651 stronger than 6262-T6?
Yes. 6262-T651 has a typical yield strength of 370 MPa (53.7 ksi) against 275 MPa (39.9 ksi) for 6262-T6 — about 35% more. Tensile strength is 400 MPa (58 ksi) vs 310 MPa (45 ksi).
Which condition does FabDigit quote by default, T6 or T651?
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 6262-T6 over 6262-T651?
Pick 6262-T6 when the part is bent, formed or impact-loaded. Pick 6262-T651 when strength drives the design.
Ready to make it?
Upload a CAD file and FabDigit prices the part in 6262-T6 and 6262-T651 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.