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Aluminum AlSi7Mg As Printed vs AlSi7Mg-F

Aluminum · AlSi7Mg temper comparison

AlSi7Mg As Printed and AlSi7Mg-F are two conditions of the same aluminum grade, AlSi7Mg: As Printed (as built (as printed)) versus F (as fabricated). The chemistry is identical, so every difference below comes from the condition. AlSi7Mg As Printed is the stronger of the two: yield strength 240 MPa (34.8 ksi) against 90 MPa (13.1 ksi) for AlSi7Mg-F, about 167% more; tensile strength follows at 350 MPa (50.8 ksi) vs 170 MPa (24.7 ksi). AlSi7Mg As Printed is the more ductile: elongation 8% versus 4% for AlSi7Mg-F, and AlSi7Mg As Printed is harder (105 HB vs 55 HB). AlSi7Mg-F runs hotter in service (150°C vs 120°C continuous) and AlSi7Mg-F conducts heat better (155 W/m·K vs 130 W/m·K).

AlSi7Mg As PrintedChoose it when strength drives the design, or when the part is bent, formed or impact-loaded.

AlSi7Mg-FChoose it when the part sees heat.

AlSi7Mg As Printed vs AlSi7Mg-F: properties

AlSi7Mg As PrintedAlSi7Mg-F

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Bulk Modulus

69 GPa10 Msi
70 GPa10.2 Msi

Tensile Strength (Ultimate)

350 MPa50.8 ksi
170 MPa24.7 ksi

Yield Strength (0.2% offset)

240 MPa34.8 ksi
90 MPa13.1 ksi

Elongation at Break

8%
4%

Shear Strength

215 MPa31.2 ksi
115 MPa16.7 ksi

Fatigue Strength (Endurance Limit)

100 MPa14.5 ksi
55 MPa8 ksi

Charpy V-Notch Impact (RT)

6 J4.4 ft·lbf
8 J5.9 ft·lbf

Hardness, Brinell

105 HB
55 HB

Hardness, Vickers

115 HV
58 HV

Same in both: Elastic (Young's) Modulus 71 GPa10.3 Msi · Shear Modulus 26.5 GPa3.8 Msi · Poisson's Ratio 0.33 · Compressive Strength 250 MPa36.3 ksi · Fracture Toughness (K_IC) 20 MPa·√m18.2 ksi·√in

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 613°C1,135 °F

Thermal

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

Thermal Conductivity

130 W/m·K75.1 BTU/hr·ft·°F
155 W/m·K89.6 BTU/hr·ft·°F

Max Service Temperature (continuous)

120°C248 °F
150°C302 °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
40 % IACS

Electrical Resistivity

6.2×10⁻⁸ Ω·m2.44 µΩ·in
4.3×10⁻⁸ Ω·m1.69 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

58 / 100
62 / 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

58 / 100
60 / 100

Machinability Rating (AISI 1212 = 100 %)

70%
55%

Weldability

70 / 100
75 / 100

Castability

90 / 100
92 / 100

Polishability

60 / 100
45 / 100

Same in both: Formability (cold) 20 / 100 · Brazeability / Solderability 30 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

215 MJ/kg92,433 BTU/lb
190 MJ/kg81,685 BTU/lb

Embodied Carbon (primary production)

13 kg CO₂/kg
12 kg CO₂/kg

Embodied Water

1,200 L/kg144 gal/lb
1,150 L/kg138 gal/lb

Typical Recycled Content

10%
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.

20501002005002.22.42.62.83Density (g/cm³)Yield strength (MPa) — log scaleAlSi7Mg

AlSi7Mg As Printed vs AlSi7Mg-F — frequently asked

Is AlSi7Mg As Printed stronger than AlSi7Mg-F?

Yes. AlSi7Mg As Printed has a typical yield strength of 240 MPa (34.8 ksi) against 90 MPa (13.1 ksi) for AlSi7Mg-F — about 167% more. Tensile strength is 350 MPa (50.8 ksi) vs 170 MPa (24.7 ksi).

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

As Printed is the default AlSi7Mg 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, AlSi7Mg As Printed or AlSi7Mg-F?

AlSi7Mg-F. Its weldability rates very good (75/100) against very good (70/100) for AlSi7Mg As Printed.

Ready to make it?

Upload a CAD file and FabDigit prices the part in AlSi7Mg As Printed and AlSi7Mg-F 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.