FabDigitFabDigit

Aluminum EN AC-43100-F vs EN AC-43100-T6

Aluminum · EN AC-43100 temper comparison

EN AC-43100-F and EN AC-43100-T6 are two conditions of the same aluminum grade, EN AC-43100: 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-43100-T6 is the stronger of the two: yield strength 230 MPa (33.4 ksi) against 110 MPa (16 ksi) for EN AC-43100-F, about 109% more; tensile strength follows at 290 MPa (42.1 ksi) vs 200 MPa (29 ksi). In exchange, EN AC-43100-F is the more ductile: elongation 2.5% versus 2% for EN AC-43100-T6, and EN AC-43100-T6 is harder (95 HB vs 60 HB). On the shop floor, EN AC-43100-F welds better (65 vs 55 out of 100).

EN AC-43100-FChoose it when the part is bent, formed or impact-loaded, or when it will be welded.

EN AC-43100-T6Choose it when strength drives the design.

EN AC-43100-F vs EN AC-43100-T6: properties

EN AC-43100-FEN AC-43100-T6

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

71 GPa10.3 Msi
73 GPa10.6 Msi

Shear Modulus

26.5 GPa3.8 Msi
27 GPa3.9 Msi

Bulk Modulus

70 GPa10.2 Msi
71 GPa10.3 Msi

Tensile Strength (Ultimate)

200 MPa29 ksi
290 MPa42.1 ksi

Yield Strength (0.2% offset)

110 MPa16 ksi
230 MPa33.4 ksi

Elongation at Break

2.5%
2%

Compressive Strength

200 MPa29 ksi
290 MPa42.1 ksi

Shear Strength

145 MPa21 ksi
200 MPa29 ksi

Fatigue Strength (Endurance Limit)

75 MPa10.9 ksi
95 MPa13.8 ksi

Fracture Toughness (K_IC)

17 MPa·√m15.5 ksi·√in
16 MPa·√m14.6 ksi·√in

Charpy V-Notch Impact (RT)

3 J2.2 ft·lbf
3 J1.8 ft·lbf

Hardness, Brinell

60 HB
95 HB

Hardness, Vickers

65 HV
105 HV

Same in both: Poisson's Ratio 0.33

Physical

Density and transition temperatures.

Same in both: Density 2.66 g/cm³0.1 lb/in³ · Melting Point (Solidus) 557°C1,035 °F · Liquidus Temperature 596°C1,105 °F

Thermal

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

Thermal Conductivity

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

Same in both: Specific Heat Capacity 890 J/kg·K0.21 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 21 µm/m·K11.7 µin/in·°F · Latent Heat of Fusion 490 J/g211 BTU/lb · Max Service Temperature (continuous) 150°C302 °F · Min Service Temperature -196°C-321 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

39 % IACS
40 % IACS

Electrical Resistivity

4.4×10⁻⁸ Ω·m1.73 µΩ·in
4.3×10⁻⁸ Ω·m1.69 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

58 / 100
56 / 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

52 / 100
58 / 100

Machinability Rating (AISI 1212 = 100 %)

60%
70%

Weldability

65 / 100
55 / 100

Formability (cold)

10 / 100
5 / 100

Brazeability / Solderability

30 / 100
25 / 100

Polishability

45 / 100
50 / 100

Same in both: Castability 95 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

200 MJ/kg85,985 BTU/lb
205 MJ/kg88,134 BTU/lb

Embodied Carbon (primary production)

12 kg CO₂/kg
12.5 kg CO₂/kg

Typical Recycled Content

55%
50%

Same in both: Embodied Water 1,100 L/kg132 gal/lb

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-43100

EN AC-43100-F vs EN AC-43100-T6 — frequently asked

Is EN AC-43100-T6 stronger than EN AC-43100-F?

Yes. EN AC-43100-T6 has a typical yield strength of 230 MPa (33.4 ksi) against 110 MPa (16 ksi) for EN AC-43100-F — about 109% more. Tensile strength is 290 MPa (42.1 ksi) vs 200 MPa (29 ksi).

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

F is the default EN AC-43100 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-43100-F or EN AC-43100-T6?

EN AC-43100-T6. Its machinability rates good (58/100) against fair (52/100) for EN AC-43100-F; for welding the order is EN AC-43100-F first (good, 65/100) then EN AC-43100-T6 (good, 55/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in EN AC-43100-F and EN AC-43100-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.