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Aluminum ZL107-F vs ZL107-T6

Aluminum · ZL107 temper comparison

ZL107-F and ZL107-T6 are two conditions of the same aluminum grade, ZL107: F (as fabricated) versus T6 (solution heat treated and artificially aged). The chemistry is identical, so every difference below comes from the condition. ZL107-T6 is the stronger of the two: yield strength 180 MPa (26.1 ksi) against 120 MPa (17.4 ksi) for ZL107-F, about 50% more; tensile strength follows at 250 MPa (36.3 ksi) vs 180 MPa (26.1 ksi). ZL107-T6 is harder — 95 HB against 68 HB for ZL107-F — which matters for wear surfaces and threads. ZL107-T6 runs hotter in service (200°C vs 175°C continuous).

ZL107-T6Choose it when strength drives the design, or when surface hardness matters.

ZL107-F vs ZL107-T6: properties

ZL107-FZL107-T6

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

180 MPa26.1 ksi
250 MPa36.3 ksi

Yield Strength (0.2% offset)

120 MPa17.4 ksi
180 MPa26.1 ksi

Shear Strength

150 MPa21.8 ksi
185 MPa26.8 ksi

Fatigue Strength (Endurance Limit)

65 MPa9.4 ksi
75 MPa10.9 ksi

Fracture Toughness (K_IC)

16 MPa·√m14.6 ksi·√in
18 MPa·√m16.4 ksi·√in

Charpy V-Notch Impact (RT)

3 J1.8 ft·lbf
3 J2.2 ft·lbf

Hardness, Brinell

68 HB
95 HB

Same in both: Elastic (Young's) Modulus 74 GPa10.7 Msi · Shear Modulus 27.5 GPa4 Msi · Bulk Modulus 72 GPa10.4 Msi · Poisson's Ratio 0.33 · Elongation at Break 2%

Physical

Density and transition temperatures.

Same in both: Density 2.77 g/cm³0.1 lb/in³ · Melting Point (Solidus) 516°C961 °F · Liquidus Temperature 604°C1,119 °F

Thermal

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

Thermal Conductivity

115 W/m·K66.4 BTU/hr·ft·°F
110 W/m·K63.6 BTU/hr·ft·°F

Max Service Temperature (continuous)

175°C347 °F
200°C392 °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 389 J/g167 BTU/lb · Min Service Temperature -196°C-321 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

28 % IACS
27 % IACS

Electrical Resistivity

6.2×10⁻⁸ Ω·m2.44 µΩ·in
6.4×10⁻⁸ Ω·m2.52 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Same in both: Galvanic Potential (seawater, vs SCE) -0.81 V · Corrosion Resistance 40 / 100

Manufacturability

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

Machinability

60 / 100
65 / 100

Machinability Rating (AISI 1212 = 100 %)

55%
60%

Weldability

30 / 100
35 / 100

Same in both: Castability 85 / 100 · Brazeability / Solderability 20 / 100 · Polishability 45 / 100

Sustainability

Primary-production footprint per kilogram.

Same in both: Embodied Energy (primary production) 150 MJ/kg64,488 BTU/lb · Embodied Carbon (primary production) 9.5 kg CO₂/kg · Embodied Water 1,100 L/kg132 gal/lb · Typical Recycled Content 60%

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 scaleZL107

ZL107-F vs ZL107-T6 — frequently asked

Is ZL107-T6 stronger than ZL107-F?

Yes. ZL107-T6 has a typical yield strength of 180 MPa (26.1 ksi) against 120 MPa (17.4 ksi) for ZL107-F — about 50% more. Tensile strength is 250 MPa (36.3 ksi) vs 180 MPa (26.1 ksi).

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

T6 is the default ZL107 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, ZL107-F or ZL107-T6?

ZL107-T6, by a small margin. Both rate good for machinability — 65/100 against 60/100 for ZL107-F; for welding the order is ZL107-T6 first (fair, 35/100) then ZL107-F (poor, 30/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in ZL107-F and ZL107-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.