Aluminum 1050A-F vs 1050A-O
Aluminum · 1050A temper comparison
1050A-F and 1050A-O are two conditions of the same aluminum grade, 1050A: F (as fabricated) versus O (annealed). The chemistry is identical, so every difference below comes from the condition. 1050A-F is the stronger of the two: yield strength 45 MPa (6.53 ksi) against 28 MPa (4.06 ksi) for 1050A-O, about 61% more; tensile strength follows at 90 MPa (13.1 ksi) vs 78 MPa (11.3 ksi). In exchange, 1050A-O is the more ductile: elongation 40% versus 25% for 1050A-F, and 1050A-F is harder (22 HB vs 20 HB). 1050A-O runs hotter in service (200°C vs 150°C continuous).
1050A-FChoose it when strength drives the design.
1050A-OChoose it when the part is bent, formed or impact-loaded, or when the part sees heat.
1050A-F vs 1050A-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.
Max Service Temperature (continuous)
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 · Min Service Temperature -269°C-452 °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) -0.84 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 30 / 100 · Brazeability / Solderability 70 / 100 · Polishability 85 / 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 1,150 L/kg138 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.
1050A-F vs 1050A-O — frequently asked
Is 1050A-F stronger than 1050A-O?
Yes. 1050A-F has a typical yield strength of 45 MPa (6.53 ksi) against 28 MPa (4.06 ksi) for 1050A-O — about 61% more. Tensile strength is 90 MPa (13.1 ksi) vs 78 MPa (11.3 ksi).
Which condition does FabDigit quote by default, F or O?
H14 is the default 1050A condition in the FabDigit quote flow (neither F 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 1050A-F over 1050A-O?
Pick 1050A-F when strength drives the design. Pick 1050A-O when the part is bent, formed or impact-loaded, or when the part sees heat.
Ready to make it?
Upload a CAD file and FabDigit prices the part in 1050A-F and 1050A-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.