Aluminum 2A10-H112 vs 2A10-O
Aluminum · 2A10 temper comparison
2A10-H112 and 2A10-O are two conditions of the same aluminum grade, 2A10: H112 (strain hardened from hot working only) versus O (annealed). The chemistry is identical, so every difference below comes from the condition. 2A10-H112 is the stronger of the two: yield strength 130 MPa (18.9 ksi) against 80 MPa (11.6 ksi) for 2A10-O, about 63% more; tensile strength follows at 250 MPa (36.3 ksi) vs 185 MPa (26.8 ksi). In exchange, 2A10-O is the more ductile: elongation 24% versus 16% for 2A10-H112, and 2A10-H112 is harder (65 HB vs 45 HB). 2A10-O runs hotter in service (150°C vs 120°C continuous) and 2A10-O conducts heat better (185 W/m·K vs 165 W/m·K). On the shop floor, 2A10-H112 machines more easily (good vs fair).
2A10-H112Choose it when strength drives the design, or when the part is machined in volume.
2A10-OChoose it when the part is bent, formed or impact-loaded, or when the part sees heat.
2A10-H112 vs 2A10-O: 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
Fracture Toughness (K_IC)
Hardness, Brinell
Hardness, Rockwell B
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 · Fatigue Strength (Endurance Limit) 90 MPa13.1 ksi
Physical
Density and transition temperatures.
Same in both: Density 2.8 g/cm³0.1 lb/in³ · Melting Point (Solidus) 512°C954 °F · Liquidus Temperature 640°C1,184 °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) 22.9 µm/m·K12.7 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
Weldability
Formability (cold)
Same in both: Brazeability / Solderability 15 / 100 · Polishability 55 / 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 10%
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.
2A10-H112 vs 2A10-O — frequently asked
Is 2A10-H112 stronger than 2A10-O?
Yes. 2A10-H112 has a typical yield strength of 130 MPa (18.9 ksi) against 80 MPa (11.6 ksi) for 2A10-O — about 63% more. Tensile strength is 250 MPa (36.3 ksi) vs 185 MPa (26.8 ksi).
Which condition does FabDigit quote by default, H112 or O?
T4 is the default 2A10 condition in the FabDigit quote flow (neither H112 nor O). 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, 2A10-H112 or 2A10-O?
2A10-H112. Its machinability rates good (55/100) against fair (45/100) for 2A10-O.
Ready to make it?
Upload a CAD file and FabDigit prices the part in 2A10-H112 and 2A10-O 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.