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Aluminum EN AC-48000-T5 vs EN AC-48000-T6

Aluminum · EN AC-48000 temper comparison

EN AC-48000-T5 and EN AC-48000-T6 are two conditions of the same aluminum grade, EN AC-48000: T5 (cooled from hot working and artificially aged) versus T6 (solution heat treated and artificially aged). The chemistry is identical, so every difference below comes from the condition. EN AC-48000-T6 is the stronger of the two: yield strength 255 MPa (37 ksi) against 190 MPa (27.6 ksi) for EN AC-48000-T5, about 34% more; tensile strength follows at 295 MPa (42.8 ksi) vs 215 MPa (31.2 ksi). EN AC-48000-T6 is harder — 115 HB against 100 HB for EN AC-48000-T5 — which matters for wear surfaces and threads. EN AC-48000-T6 runs hotter in service (250°C vs 230°C continuous).

EN AC-48000-T6Choose it when strength drives the design, or when surface hardness matters.

EN AC-48000-T5 vs EN AC-48000-T6: properties

EN AC-48000-T5EN AC-48000-T6

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

80 GPa11.6 Msi
82 GPa11.9 Msi

Shear Modulus

30 GPa4.4 Msi
31 GPa4.5 Msi

Bulk Modulus

77 GPa11.2 Msi
78 GPa11.3 Msi

Tensile Strength (Ultimate)

215 MPa31.2 ksi
295 MPa42.8 ksi

Yield Strength (0.2% offset)

190 MPa27.6 ksi
255 MPa37 ksi

Shear Strength

150 MPa21.8 ksi
195 MPa28.3 ksi

Fatigue Strength (Endurance Limit)

80 MPa11.6 ksi
95 MPa13.8 ksi

Fracture Toughness (K_IC)

15 MPa·√m13.7 ksi·√in
14 MPa·√m12.7 ksi·√in

Hardness, Brinell

100 HB
115 HB

Hardness, Vickers

105 HV
120 HV

Same in both: Poisson's Ratio 0.33 · Elongation at Break 1% · Compressive Strength 480 MPa69.6 ksi · Charpy V-Notch Impact (RT) 2 J1.5 ft·lbf

Physical

Density and transition temperatures.

Same in both: Density 2.7 g/cm³0.1 lb/in³ · Melting Point (Solidus) 510°C950 °F · Liquidus Temperature 570°C1,058 °F

Thermal

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

Thermal Conductivity

140 W/m·K80.9 BTU/hr·ft·°F
135 W/m·K78 BTU/hr·ft·°F

Max Service Temperature (continuous)

230°C446 °F
250°C482 °F

Same in both: Specific Heat Capacity 880 J/kg·K0.21 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 19.5 µm/m·K10.8 µin/in·°F · Latent Heat of Fusion 490 J/g211 BTU/lb · Min Service Temperature -60°C-76 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

35 % IACS
33 % IACS

Electrical Resistivity

4.9×10⁻⁸ Ω·m1.93 µΩ·in
5.2×10⁻⁸ Ω·m2.05 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

45 / 100
42 / 100

Same in both: Galvanic Potential (seawater, vs SCE) -0.8 V

Manufacturability

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

Machinability

45 / 100
48 / 100

Machinability Rating (AISI 1212 = 100 %)

60%
65%

Weldability

30 / 100
25 / 100

Same in both: Formability (cold) 5 / 100 · Castability 85 / 100 · Brazeability / Solderability 20 / 100 · Polishability 40 / 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

70%
65%

Same in both: Embodied Water 1,200 L/kg144 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-48000

EN AC-48000-T5 vs EN AC-48000-T6 — frequently asked

Is EN AC-48000-T6 stronger than EN AC-48000-T5?

Yes. EN AC-48000-T6 has a typical yield strength of 255 MPa (37 ksi) against 190 MPa (27.6 ksi) for EN AC-48000-T5 — about 34% more. Tensile strength is 295 MPa (42.8 ksi) vs 215 MPa (31.2 ksi).

Which condition does FabDigit quote by default, T5 or T6?

T6 is the default EN AC-48000 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 welds better, EN AC-48000-T5 or EN AC-48000-T6?

EN AC-48000-T5. Its weldability rates poor (30/100) against poor (25/100) for EN AC-48000-T6.

Ready to make it?

Upload a CAD file and FabDigit prices the part in EN AC-48000-T5 and EN AC-48000-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.