Aluminum ZL107 J-T6 vs ZL107-T6
Aluminum · ZL107 temper comparison
ZL107 J-T6 and ZL107-T6 are two conditions of the same aluminum grade, ZL107: J-T6 versus T6 (solution heat treated and artificially aged). The chemistry is identical, so every difference below comes from the condition. ZL107 J-T6 is the stronger of the two: yield strength 205 MPa (29.7 ksi) against 180 MPa (26.1 ksi) for ZL107-T6, about 14% more; tensile strength follows at 285 MPa (41.3 ksi) vs 250 MPa (36.3 ksi). ZL107 J-T6 is the more ductile: elongation 2.5% versus 2% for ZL107-T6, and ZL107 J-T6 is harder (105 HB vs 95 HB).
ZL107 J-T6Choose it when strength drives the design, or when the part is bent, formed or impact-loaded.
ZL107 J-T6 vs ZL107-T6: propertiesHow to read these bars
- One bar per material. A full bar is the highest value among all aluminum grades in the FabDigit library; each bar is drawn as a share of that.
- The better value (by the usual engineering direction) is in bold. Rows with no direction — density, thermal conductivity — have no bold.
- Values are typical room-temperature figures for the condition named on each card.
- Confirm against the certified mill or resin datasheet before design release.
How to read these bars
- One bar per material. A full bar is the highest value among all aluminum grades in the FabDigit library; each bar is drawn as a share of that.
- The better value (by the usual engineering direction) is in bold. Rows with no direction — density, thermal conductivity — have no bold.
- Values are typical room-temperature figures for the condition named on each card.
- Confirm against the certified mill or resin datasheet before design release.
Mechanical
Strength, stiffness, ductility and hardness at room temperature.
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Shear Strength
Fatigue Strength (Endurance Limit)
Hardness, Brinell
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 · Fracture Toughness (K_IC) 18 MPa·√m16.4 ksi·√in · Charpy V-Notch Impact (RT) 3 J2.2 ft·lbf
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.
Same in both: Thermal Conductivity 110 W/m·K63.6 BTU/hr·ft·°F · 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 · Max Service Temperature (continuous) 200°C392 °F · Min Service Temperature -196°C-321 °F
Electrical
Conductivity and insulation.
Same in both: Electrical Conductivity 27 % IACS · Electrical Resistivity 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
Same in both: Machinability Rating (AISI 1212 = 100 %) 60% · Weldability 35 / 100 · 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.
ZL107 J-T6 vs ZL107-T6 — frequently asked
Is ZL107 J-T6 stronger than ZL107-T6?
Yes. ZL107 J-T6 has a typical yield strength of 205 MPa (29.7 ksi) against 180 MPa (26.1 ksi) for ZL107-T6 — about 14% more. Tensile strength is 285 MPa (41.3 ksi) vs 250 MPa (36.3 ksi).
Which condition does FabDigit quote by default, J-T6 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.
When should I choose ZL107 J-T6 over ZL107-T6?
Pick ZL107 J-T6 when strength drives the design, or when the part is bent, formed or impact-loaded.
Ready to make it?
Upload a CAD file and FabDigit prices the part in ZL107 J-T6 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.