Aluminum 1050-H111 vs 1050-O
Aluminum · 1050 temper comparison
1050-H111 and 1050-O are two conditions of the same aluminum grade, 1050: H111 (slightly strain hardened) versus O (annealed). The chemistry is identical, so every difference below comes from the condition. 1050-O is the stronger of the two: yield strength 30 MPa (4.35 ksi) against 25 MPa (3.63 ksi) for 1050-H111, about 20% more. 1050-O is the more ductile: elongation 38% versus 30% for 1050-H111, and 1050-H111 is harder (20 HB vs 19 HB).
1050-OChoose it when strength drives the design, or when the part is bent, formed or impact-loaded.
1050-H111 vs 1050-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
Fatigue Strength (Endurance Limit)
Hardness, Brinell
Hardness, Vickers
Same in both: Elastic (Young's) Modulus 69 GPa10 Msi · Shear Modulus 26 GPa3.8 Msi · Bulk Modulus 75 GPa10.9 Msi · Poisson's Ratio 0.33
Physical
Density and transition temperatures.
Same in both: Density 2.71 g/cm³0.1 lb/in³ · Melting Point (Solidus) 646°C1,195 °F · Liquidus Temperature 657°C1,215 °F
Thermal
How each material carries heat and how hot it can run.
Same in both: Thermal Conductivity 231 W/m·K133 BTU/hr·ft·°F · Specific Heat Capacity 900 J/kg·K0.21 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 23.6 µm/m·K13.1 µin/in·°F · Latent Heat of Fusion 397 J/g171 BTU/lb · Max Service Temperature (continuous) 200°C392 °F · Min Service Temperature -270°C-454 °F
Electrical
Conductivity and insulation.
Same in both: Electrical Conductivity 61.6 % IACS · Electrical Resistivity 2.8×10⁻⁸ Ω·m1.1 µΩ·in
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Corrosion Resistance
Same in both: Galvanic Potential (seawater, vs SCE) -0.84 V
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Machinability Rating (AISI 1212 = 100 %)
Formability (cold)
Same in both: Weldability 95 / 100 · Brazeability / Solderability 85 / 100 · Polishability 78 / 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 1,100 L/kg132 gal/lb · Typical Recycled Content 20%
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.
1050-H111 vs 1050-O — frequently asked
Is 1050-O stronger than 1050-H111?
Yes. 1050-O has a typical yield strength of 30 MPa (4.35 ksi) against 25 MPa (3.63 ksi) for 1050-H111 — about 20% more. Tensile strength is 78 MPa (11.3 ksi) vs 75 MPa (10.9 ksi).
Which condition does FabDigit quote by default, H111 or O?
H14 is the default 1050 condition in the FabDigit quote flow (neither H111 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.
When should I choose 1050-H111 over 1050-O?
Pick 1050-O when strength drives the design, or when the part is bent, formed or impact-loaded.
Ready to make it?
Upload a CAD file and FabDigit prices the part in 1050-H111 and 1050-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.