Aluminum EN AC-41000-T6 vs EN AC-41000 T6-K
Aluminum · EN AC-41000 temper comparison
EN AC-41000-T6 and EN AC-41000 T6-K are two conditions of the same aluminum grade, EN AC-41000: T6 (solution heat treated and artificially aged) versus T6-K (T6). The chemistry is identical, so every difference below comes from the condition. EN AC-41000 T6-K is the stronger of the two: yield strength 195 MPa (28.3 ksi) against 130 MPa (18.9 ksi) for EN AC-41000-T6, about 50% more; tensile strength follows at 260 MPa (37.7 ksi) vs 190 MPa (27.6 ksi). EN AC-41000 T6-K is the more ductile: elongation 7% versus 5% for EN AC-41000-T6, and EN AC-41000 T6-K is harder (78 HB vs 55 HB). On the shop floor, EN AC-41000 T6-K welds better (very good vs good).
EN AC-41000 T6-KChoose it when strength drives the design, or when the part is bent, formed or impact-loaded.
EN AC-41000-T6 vs EN AC-41000 T6-K: 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.
EN AC-41000-T6EN AC-41000 T6-K
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)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Same in both: Elastic (Young's) Modulus 72 GPa10.4 Msi · Shear Modulus 27 GPa3.9 Msi · Bulk Modulus 71 GPa10.3 Msi · Poisson's Ratio 0.33 · Compressive Strength 140 MPa20.3 ksi · Fracture Toughness (K_IC) 25 MPa·√m22.8 ksi·√in
Physical
Density and transition temperatures.
Same in both: Density 2.67 g/cm³0.1 lb/in³ · Melting Point (Solidus) 610°C1,130 °F · Liquidus Temperature 650°C1,202 °F
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Same in both: Specific Heat Capacity 900 J/kg·K0.21 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 22.5 µm/m·K12.5 µin/in·°F · Latent Heat of Fusion 390 J/g168 BTU/lb · Max Service Temperature (continuous) 150°C302 °F · Min Service Temperature -200°C-328 °F
Electrical
Conductivity and insulation.
Electrical Conductivity
Electrical Resistivity
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Corrosion Resistance
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
Weldability
Same in both: Machinability Rating (AISI 1212 = 100 %) 160% · Formability (cold) 20 / 100 · Castability 55 / 100 · Brazeability / Solderability 40 / 100 · Polishability 65 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 205 MJ/kg88,134 BTU/lb · Embodied Carbon (primary production) 12.3 kg CO₂/kg · Embodied Water 1,100 L/kg132 gal/lb · Typical Recycled Content 40%
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.
EN AC-41000-T6 vs EN AC-41000 T6-K — frequently asked
Is EN AC-41000 T6-K stronger than EN AC-41000-T6?
Yes. EN AC-41000 T6-K has a typical yield strength of 195 MPa (28.3 ksi) against 130 MPa (18.9 ksi) for EN AC-41000-T6 — about 50% more. Tensile strength is 260 MPa (37.7 ksi) vs 190 MPa (27.6 ksi).
Which condition does FabDigit quote by default, T6 or T6-K?
T6 is the default EN AC-41000 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-41000-T6 or EN AC-41000 T6-K?
EN AC-41000-T6, by a small margin. Both rate good for machinability — 68/100 against 62/100 for EN AC-41000 T6-K; for welding the order is EN AC-41000 T6-K first (very good, 80/100) then EN AC-41000-T6 (good, 68/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in EN AC-41000-T6 and EN AC-41000 T6-K 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.