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Aluminum 850.0-F vs 850.0-T5

Aluminum · 850.0 temper comparison

850.0-F and 850.0-T5 are two conditions of the same aluminum grade, 850.0: F (as fabricated) versus T5 (cooled from hot working and artificially aged). The chemistry is identical, so every difference below comes from the condition. 850.0-T5 is the stronger of the two: yield strength 76 MPa (11 ksi) against 65 MPa (9.43 ksi) for 850.0-F, about 17% more; tensile strength follows at 138 MPa (20 ksi) vs 130 MPa (18.9 ksi). 850.0-T5 is harder — 45 HB against 42 HB for 850.0-F — which matters for wear surfaces and threads.

850.0-T5Choose it when strength drives the design, or when surface hardness matters.

850.0-F vs 850.0-T5: properties

850.0-F850.0-T5

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

130 MPa18.9 ksi
138 MPa20 ksi

Yield Strength (0.2% offset)

65 MPa9.4 ksi
76 MPa11 ksi

Compressive Strength

80 MPa11.6 ksi
90 MPa13.1 ksi

Shear Strength

85 MPa12.3 ksi
90 MPa13.1 ksi

Fatigue Strength (Endurance Limit)

50 MPa7.3 ksi
55 MPa8 ksi

Hardness, Brinell

42 HB
45 HB

Same in both: Elastic (Young's) Modulus 71 GPa10.3 Msi · Shear Modulus 26 GPa3.8 Msi · Bulk Modulus 70 GPa10.2 Msi · Poisson's Ratio 0.33 · Elongation at Break 10%

Physical

Density and transition temperatures.

Same in both: Density 2.88 g/cm³0.1 lb/in³ · Melting Point (Solidus) 225°C437 °F · Liquidus Temperature 650°C1,202 °F

Thermal

How each material carries heat and how hot it can run.

Same in both: Thermal Conductivity 209 W/m·K121 BTU/hr·ft·°F · Specific Heat Capacity 920 J/kg·K0.22 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 23 µm/m·K12.8 µin/in·°F · Latent Heat of Fusion 385 J/g166 BTU/lb · Max Service Temperature (continuous) 150°C302 °F · Min Service Temperature -195°C-319 °F

Electrical

Conductivity and insulation.

Same in both: Electrical Conductivity 47 % IACS · Electrical Resistivity 3.67×10⁻⁸ Ω·m1.44 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Same in both: Galvanic Potential (seawater, vs SCE) -0.8 V · Corrosion Resistance 50 / 100

Manufacturability

FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.

Same in both: Machinability 88 / 100 · Weldability 20 / 100 · Formability (cold) 15 / 100 · Castability 60 / 100 · Brazeability / Solderability 15 / 100 · Polishability 45 / 100

Sustainability

Primary-production footprint per kilogram.

Same in both: Embodied Energy (primary production) 190 MJ/kg81,685 BTU/lb · Embodied Carbon (primary production) 11.5 kg CO₂/kg · Embodied Water 1,100 L/kg132 gal/lb · Typical Recycled Content 30%

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.

20501002005002.22.42.62.83Density (g/cm³)Yield strength (MPa) — log scale850.0

850.0-F vs 850.0-T5 — frequently asked

Is 850.0-T5 stronger than 850.0-F?

Yes. 850.0-T5 has a typical yield strength of 76 MPa (11 ksi) against 65 MPa (9.43 ksi) for 850.0-F — about 17% more. Tensile strength is 138 MPa (20 ksi) vs 130 MPa (18.9 ksi).

Which condition does FabDigit quote by default, F or T5?

T5 is the default 850.0 condition in the FabDigit quote flow. 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 850.0-F over 850.0-T5?

Pick 850.0-T5 when strength drives the design, or when surface hardness matters.

Ready to make it?

Upload a CAD file and FabDigit prices the part in 850.0-F and 850.0-T5 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.