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Aluminum EN AC-45500-F vs EN AC-45500-T6

Aluminum · EN AC-45500 temper comparison

EN AC-45500-F and EN AC-45500-T6 are two conditions of the same aluminum grade, EN AC-45500: F (as fabricated) versus T6 (solution heat treated and artificially aged). The chemistry is identical, so every difference below comes from the condition. EN AC-45500-T6 is the stronger of the two: yield strength 280 MPa (40.6 ksi) against 100 MPa (14.5 ksi) for EN AC-45500-F, about 180% more; tensile strength follows at 320 MPa (46.4 ksi) vs 180 MPa (26.1 ksi). EN AC-45500-T6 is the more ductile: elongation 4% versus 3% for EN AC-45500-F, and EN AC-45500-T6 is harder (100 HB vs 60 HB). On the shop floor, EN AC-45500-T6 machines more easily (68 vs 55 out of 100).

EN AC-45500-T6Choose it when strength drives the design, or when the part is bent, formed or impact-loaded.

EN AC-45500-F vs EN AC-45500-T6: properties

EN AC-45500-FEN AC-45500-T6

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

74 GPa10.7 Msi
75 GPa10.9 Msi

Tensile Strength (Ultimate)

180 MPa26.1 ksi
320 MPa46.4 ksi

Yield Strength (0.2% offset)

100 MPa14.5 ksi
280 MPa40.6 ksi

Elongation at Break

3%
4%

Compressive Strength

105 MPa15.2 ksi
285 MPa41.3 ksi

Shear Strength

125 MPa18.1 ksi
210 MPa30.5 ksi

Fatigue Strength (Endurance Limit)

60 MPa8.7 ksi
95 MPa13.8 ksi

Fracture Toughness (K_IC)

26 MPa·√m23.7 ksi·√in
22 MPa·√m20 ksi·√in

Charpy V-Notch Impact (RT)

4 J3 ft·lbf
5 J3.7 ft·lbf

Hardness, Brinell

60 HB
100 HB

Hardness, Vickers

64 HV
105 HV

Same in both: Shear Modulus 27 GPa3.9 Msi · Bulk Modulus 75 GPa10.9 Msi · Poisson's Ratio 0.33

Physical

Density and transition temperatures.

Same in both: Density 2.68 g/cm³0.1 lb/in³ · Melting Point (Solidus) 555°C1,031 °F · Liquidus Temperature 615°C1,139 °F

Thermal

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

Thermal Conductivity

155 W/m·K89.6 BTU/hr·ft·°F
150 W/m·K86.7 BTU/hr·ft·°F

Same in both: Specific Heat Capacity 963 J/kg·K0.23 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 21.5 µm/m·K11.9 µin/in·°F · Latent Heat of Fusion 400 J/g172 BTU/lb · Max Service Temperature (continuous) 150°C302 °F · Min Service Temperature -196°C-321 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

38 % IACS
39 % IACS

Electrical Resistivity

4.54×10⁻⁸ Ω·m1.79 µΩ·in
4.4×10⁻⁸ Ω·m1.73 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

58 / 100
55 / 100

Same in both: Galvanic Potential (seawater, vs SCE) -0.83 V

Manufacturability

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

Machinability

55 / 100
68 / 100

Machinability Rating (AISI 1212 = 100 %)

65%
80%

Weldability

50 / 100
55 / 100

Same in both: Castability 88 / 100 · Brazeability / Solderability 25 / 100 · Polishability 45 / 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 1,200 L/kg144 gal/lb · Typical Recycled Content 25%

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 scaleEN AC-45500

EN AC-45500-F vs EN AC-45500-T6 — frequently asked

Is EN AC-45500-T6 stronger than EN AC-45500-F?

Yes. EN AC-45500-T6 has a typical yield strength of 280 MPa (40.6 ksi) against 100 MPa (14.5 ksi) for EN AC-45500-F — about 180% more. Tensile strength is 320 MPa (46.4 ksi) vs 180 MPa (26.1 ksi).

Which condition does FabDigit quote by default, F or T6?

T6 is the default EN AC-45500 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.

Which is easier to machine, EN AC-45500-F or EN AC-45500-T6?

EN AC-45500-T6, by a small margin. Both rate good for machinability — 68/100 against 55/100 for EN AC-45500-F; for welding the order is EN AC-45500-T6 first (good, 55/100) then EN AC-45500-F (fair, 50/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in EN AC-45500-F and EN AC-45500-T6 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.