Aluminum 2A17-H112 vs 2A17-T4
Aluminum · 2A17 temper comparison
2A17-H112 and 2A17-T4 are two conditions of the same aluminum grade, 2A17: H112 (strain hardened from hot working only) versus T4 (solution heat treated and naturally aged). The chemistry is identical, so every difference below comes from the condition. 2A17-T4 is the stronger of the two: yield strength 235 MPa (34.1 ksi) against 150 MPa (21.8 ksi) for 2A17-H112, about 57% more; tensile strength follows at 380 MPa (55.1 ksi) vs 260 MPa (37.7 ksi). 2A17-T4 is harder — 100 HB against 65 HB for 2A17-H112 — which matters for wear surfaces and threads. 2A17-H112 runs hotter in service (200°C vs 150°C continuous) and 2A17-H112 conducts heat better (150 W/m·K vs 120 W/m·K). On the shop floor, 2A17-T4 machines more easily (good vs fair) and 2A17-H112 forms better (good vs fair).
2A17-H112Choose it when the part sees heat.
2A17-T4Choose it when strength drives the design, or when surface hardness matters.
2A17-H112 vs 2A17-T4: 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.
Elastic (Young's) Modulus
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Reduction in Area
Compressive Strength
Shear Strength
Fatigue Strength (Endurance Limit)
Fracture Toughness (K_IC)
Hardness, Brinell
Same in both: Shear Modulus 27 GPa3.9 Msi · Bulk Modulus 71 GPa10.3 Msi · Poisson's Ratio 0.33 · Elongation at Break 14%
Physical
Density and transition temperatures.
Same in both: Density 2.84 g/cm³0.1 lb/in³ · Melting Point (Solidus) 540°C1,004 °F · Liquidus Temperature 650°C1,202 °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 870 J/kg·K0.21 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 22.6 µm/m·K12.6 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 25 / 100 · Brazeability / Solderability 15 / 100 · Polishability 55 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 200 MJ/kg85,985 BTU/lb · Embodied Carbon (primary production) 12.5 kg CO₂/kg · Embodied Water 1,200 L/kg144 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.
2A17-H112 vs 2A17-T4 — frequently asked
Is 2A17-T4 stronger than 2A17-H112?
Yes. 2A17-T4 has a typical yield strength of 235 MPa (34.1 ksi) against 150 MPa (21.8 ksi) for 2A17-H112 — about 57% more. Tensile strength is 380 MPa (55.1 ksi) vs 260 MPa (37.7 ksi).
Which condition does FabDigit quote by default, H112 or T4?
T6 is the default 2A17 condition in the FabDigit quote flow (neither H112 nor T4). 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, 2A17-H112 or 2A17-T4?
2A17-T4. Its machinability rates good (65/100) against fair (52/100) for 2A17-H112.
Ready to make it?
Upload a CAD file and FabDigit prices the part in 2A17-H112 and 2A17-T4 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.