Aluminum 2A12-H112 vs 2A12-T3
Aluminum · 2A12 temper comparison
2A12-H112 and 2A12-T3 are two conditions of the same aluminum grade, 2A12: H112 (strain hardened from hot working only) versus T3 (solution heat treated, cold worked and naturally aged). The chemistry is identical, so every difference below comes from the condition. 2A12-T3 is the stronger of the two: yield strength 345 MPa (50 ksi) against 150 MPa (21.8 ksi) for 2A12-H112, about 130% more; tensile strength follows at 485 MPa (70.3 ksi) vs 260 MPa (37.7 ksi). 2A12-T3 is the more ductile: elongation 18% versus 12% for 2A12-H112, and 2A12-T3 is harder (120 HB vs 70 HB). 2A12-H112 runs hotter in service (150°C vs 120°C continuous) and 2A12-H112 conducts heat better (162 W/m·K vs 121 W/m·K). On the shop floor, 2A12-T3 machines more easily (very good vs good).
2A12-H112Choose it when the part sees heat.
2A12-T3Choose it when strength drives the design, or when the part is bent, formed or impact-loaded.
2A12-H112 vs 2A12-T3: 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
Reduction in Area
Compressive Strength
Shear Strength
Fatigue Strength (Endurance Limit)
Fracture Toughness (K_IC)
Hardness, Brinell
Hardness, Rockwell B
Hardness, Vickers
Same in both: Elastic (Young's) Modulus 73 GPa10.6 Msi · Shear Modulus 28 GPa4.1 Msi · Bulk Modulus 75 GPa10.9 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) 502°C936 °F · Liquidus Temperature 638°C1,180 °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 875 J/kg·K0.21 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 23.2 µm/m·K12.9 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) -0.69 V
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Machinability Rating (AISI 1212 = 100 %)
Weldability
Formability (cold)
Same in both: Castability 20 / 100 · Brazeability / Solderability 15 / 100 · Polishability 55 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 210 MJ/kg90,284 BTU/lb · Embodied Carbon (primary production) 13.5 kg CO₂/kg · Embodied Water 1,200 L/kg144 gal/lb · Typical Recycled Content 15%
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.
2A12-H112 vs 2A12-T3 — frequently asked
Is 2A12-T3 stronger than 2A12-H112?
Yes. 2A12-T3 has a typical yield strength of 345 MPa (50 ksi) against 150 MPa (21.8 ksi) for 2A12-H112 — about 130% more. Tensile strength is 485 MPa (70.3 ksi) vs 260 MPa (37.7 ksi).
Which condition does FabDigit quote by default, H112 or T3?
T4 is the default 2A12 condition in the FabDigit quote flow (neither H112 nor T3). 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.
Which is easier to machine, 2A12-H112 or 2A12-T3?
2A12-T3. Its machinability rates very good (72/100) against good (55/100) for 2A12-H112; for welding the order is 2A12-H112 first (poor, 20/100) then 2A12-T3 (poor, 15/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in 2A12-H112 and 2A12-T3 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.