Aluminum 6025-H111 vs 6025-H34
Aluminum · 6025 temper comparison
6025-H111 and 6025-H34 are two conditions of the same aluminum grade, 6025: H111 (slightly strain hardened) versus H34 (strain hardened and stabilized, half hard). The chemistry is identical, so every difference below comes from the condition. 6025-H34 is the stronger of the two: yield strength 240 MPa (34.8 ksi) against 130 MPa (18.9 ksi) for 6025-H111, about 85% more; tensile strength follows at 290 MPa (42.1 ksi) vs 235 MPa (34.1 ksi). In exchange, 6025-H111 is the more ductile: elongation 20% versus 9% for 6025-H34, and 6025-H34 is harder (80 HB vs 60 HB). 6025-H34 runs hotter in service (120°C vs 100°C continuous) and 6025-H111 conducts electricity better (38 % IACS vs 34 % IACS). On the shop floor, 6025-H34 machines more easily (50 vs 38 out of 100).
6025-H111Choose it when the part is bent, formed or impact-loaded.
6025-H34Choose it when strength drives the design, or when the part sees heat.
6025-H111 vs 6025-H34: 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
Fatigue Strength (Endurance Limit)
Fracture Toughness (K_IC)
Hardness, Brinell
Same in both: Elastic (Young's) Modulus 70 GPa10.2 Msi · Shear Modulus 26 GPa3.8 Msi · Bulk Modulus 70 GPa10.2 Msi · Poisson's Ratio 0.33
Physical
Density and transition temperatures.
Same in both: Density 2.69 g/cm³0.1 lb/in³ · Melting Point (Solidus) 590°C1,094 °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 900 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 395 J/g170 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) -0.85 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: Brazeability / Solderability 25 / 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 35%
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.
6025-H111 vs 6025-H34 — frequently asked
Is 6025-H34 stronger than 6025-H111?
Yes. 6025-H34 has a typical yield strength of 240 MPa (34.8 ksi) against 130 MPa (18.9 ksi) for 6025-H111 — about 85% more. Tensile strength is 290 MPa (42.1 ksi) vs 235 MPa (34.1 ksi).
Which condition does FabDigit quote by default, H111 or H34?
H32 is the default 6025 condition in the FabDigit quote flow (neither H111 nor H34). 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, 6025-H111 or 6025-H34?
6025-H34, by a small margin. Both rate fair for machinability — 50/100 against 38/100 for 6025-H111; for welding the order is 6025-H111 first (very good, 80/100) then 6025-H34 (very good, 72/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in 6025-H111 and 6025-H34 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.