Aluminum ADC5 F-SR vs ADC5-O
Aluminum · ADC5 temper comparison
ADC5 F-SR and ADC5-O are two conditions of the same aluminum grade, ADC5: F-SR (as-cast plus low-temperature stress relief) versus O (annealed). The chemistry is identical, so every difference below comes from the condition. ADC5 F-SR is the stronger of the two: yield strength 170 MPa (24.7 ksi) against 130 MPa (18.9 ksi) for ADC5-O, about 31% more; tensile strength follows at 290 MPa (42.1 ksi) vs 250 MPa (36.3 ksi). In exchange, ADC5-O is the more ductile: elongation 11% versus 9% for ADC5 F-SR, and ADC5 F-SR is harder (68 HB vs 58 HB). ADC5-O runs hotter in service (150°C vs 130°C continuous).
ADC5 F-SRChoose it when strength drives the design.
ADC5-OChoose it when the part is bent, formed or impact-loaded, or when the part sees heat.
ADC5 F-SR vs ADC5-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)
Fracture Toughness (K_IC)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Same in both: Elastic (Young's) Modulus 70 GPa10.2 Msi · Shear Modulus 26 GPa3.8 Msi · Bulk Modulus 69 GPa10 Msi · Poisson's Ratio 0.33
Physical
Density and transition temperatures.
Same in both: Density 2.58 g/cm³0.09 lb/in³ · Melting Point (Solidus) 535°C995 °F · Liquidus Temperature 620°C1,148 °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 960 J/kg·K0.23 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 24.1 µm/m·K13.4 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) -0.87 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 38 / 100 · Brazeability / Solderability 20 / 100 · Polishability 75 / 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 kg CO₂/kg · Embodied Water 1,100 L/kg132 gal/lb · Typical Recycled Content 50%
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.
ADC5 F-SR vs ADC5-O — frequently asked
Is ADC5 F-SR stronger than ADC5-O?
Yes. ADC5 F-SR has a typical yield strength of 170 MPa (24.7 ksi) against 130 MPa (18.9 ksi) for ADC5-O — about 31% more. Tensile strength is 290 MPa (42.1 ksi) vs 250 MPa (36.3 ksi).
Which condition does FabDigit quote by default, F-SR or O?
F is the default ADC5 condition in the FabDigit quote flow (neither F-SR 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 welds better, ADC5 F-SR or ADC5-O?
ADC5-O. Its weldability rates good (55/100) against fair (50/100) for ADC5 F-SR.
Ready to make it?
Upload a CAD file and FabDigit prices the part in ADC5 F-SR and ADC5-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.