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Aluminum AlSi10Mg As Printed vs AlSi10Mg-T6

Aluminum · AlSi10Mg temper comparison

AlSi10Mg As Printed and AlSi10Mg-T6 are two conditions of the same aluminum grade, AlSi10Mg: As Printed (as built (as printed)) versus T6 (solution heat treated and artificially aged). The chemistry is identical, so every difference below comes from the condition. AlSi10Mg As Printed is the stronger of the two: yield strength 265 MPa (38.4 ksi) against 240 MPa (34.8 ksi) for AlSi10Mg-T6, about 10% more; tensile strength follows at 460 MPa (66.7 ksi) vs 340 MPa (49.3 ksi). In exchange, AlSi10Mg-T6 is the more ductile: elongation 8% versus 7% for AlSi10Mg As Printed, and AlSi10Mg As Printed is harder (119 HB vs 105 HB). AlSi10Mg-T6 runs hotter in service (175°C vs 150°C continuous) and AlSi10Mg-T6 conducts heat better (155 W/m·K vs 120 W/m·K).

AlSi10Mg As PrintedChoose it when strength drives the design.

AlSi10Mg-T6Choose it when the part is bent, formed or impact-loaded, or when the part sees heat.

AlSi10Mg As Printed vs AlSi10Mg-T6: properties

AlSi10Mg As PrintedAlSi10Mg-T6

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

460 MPa66.7 ksi
340 MPa49.3 ksi

Yield Strength (0.2% offset)

265 MPa38.4 ksi
240 MPa34.8 ksi

Elongation at Break

7%
8%

Fatigue Strength (Endurance Limit)

90 MPa13.1 ksi
110 MPa16 ksi

Fracture Toughness (K_IC)

22 MPa·√m20 ksi·√in
26 MPa·√m23.7 ksi·√in

Charpy V-Notch Impact (RT)

4 J2.6 ft·lbf
5 J3.7 ft·lbf

Hardness, Brinell

119 HB
105 HB

Hardness, Rockwell B

66 HRB
60 HRB

Hardness, Vickers

125 HV
112 HV

Same in both: Elastic (Young's) Modulus 70 GPa10.2 Msi · Shear Modulus 26.5 GPa3.8 Msi · Bulk Modulus 69 GPa10 Msi · Poisson's Ratio 0.33 · Compressive Strength 480 MPa69.6 ksi · Shear Strength 280 MPa40.6 ksi

Physical

Density and transition temperatures.

Same in both: Density 2.67 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

120 W/m·K69.3 BTU/hr·ft·°F
155 W/m·K89.6 BTU/hr·ft·°F

Max Service Temperature (continuous)

150°C302 °F
175°C347 °F

Same in both: Specific Heat Capacity 900 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 425 J/g183 BTU/lb · Min Service Temperature -196°C-321 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

24 % IACS
34 % IACS

Same in both: Electrical Resistivity 7.2×10⁻⁸ Ω·m2.83 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

55 / 100
58 / 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

50 / 100
58 / 100

Same in both: Machinability Rating (AISI 1212 = 100 %) 50% · Weldability 60 / 100 · Formability (cold) 10 / 100 · Castability 92 / 100 · Brazeability / Solderability 30 / 100 · Polishability 55 / 100

Sustainability

Primary-production footprint per kilogram.

Same in both: Embodied Energy (primary production) 240 MJ/kg103,182 BTU/lb · Embodied Carbon (primary production) 15 kg CO₂/kg · Embodied Water 1,200 L/kg144 gal/lb · Typical Recycled Content 5%

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 scaleAlSi10Mg

AlSi10Mg As Printed vs AlSi10Mg-T6 — frequently asked

Is AlSi10Mg As Printed stronger than AlSi10Mg-T6?

Yes. AlSi10Mg As Printed has a typical yield strength of 265 MPa (38.4 ksi) against 240 MPa (34.8 ksi) for AlSi10Mg-T6 — about 10% more. Tensile strength is 460 MPa (66.7 ksi) vs 340 MPa (49.3 ksi).

Which condition does FabDigit quote by default, As Printed or T6?

As Printed is the default AlSi10Mg 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, AlSi10Mg As Printed or AlSi10Mg-T6?

AlSi10Mg-T6. Its machinability rates good (58/100) against fair (50/100) for AlSi10Mg As Printed.

Ready to make it?

Upload a CAD file and FabDigit prices the part in AlSi10Mg As Printed and AlSi10Mg-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.