Aluminum AlSi7Mg-F vs AlSi7Mg-HIP
Aluminum · AlSi7Mg temper comparison
AlSi7Mg-F and AlSi7Mg-HIP are two conditions of the same aluminum grade, AlSi7Mg: F (as fabricated) versus HIP (hot isostatic pressed). The chemistry is identical, so every difference below comes from the condition. AlSi7Mg-HIP is the stronger of the two: yield strength 185 MPa (26.8 ksi) against 90 MPa (13.1 ksi) for AlSi7Mg-F, about 106% more; tensile strength follows at 275 MPa (39.9 ksi) vs 170 MPa (24.7 ksi). AlSi7Mg-HIP is the more ductile: elongation 16% versus 4% for AlSi7Mg-F, and AlSi7Mg-HIP is harder (85 HB vs 55 HB).
AlSi7Mg-HIPChoose it when strength drives the design, or when the part is bent, formed or impact-loaded.
AlSi7Mg-F vs AlSi7Mg-HIP: 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.
Bulk Modulus
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Shear Strength
Fatigue Strength (Endurance Limit)
Fracture Toughness (K_IC)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Hardness, Vickers
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
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.
Same in both: Thermal Conductivity 155 W/m·K89.6 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) 150°C302 °F · Min Service Temperature -196°C-321 °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
Machinability Rating (AISI 1212 = 100 %)
Weldability
Castability
Polishability
Same in both: Formability (cold) 20 / 100 · Brazeability / Solderability 30 / 100
Sustainability
Primary-production footprint per kilogram.
Embodied Energy (primary production)
Embodied Carbon (primary production)
Embodied Water
Typical Recycled Content
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.
AlSi7Mg-F vs AlSi7Mg-HIP — frequently asked
Is AlSi7Mg-HIP stronger than AlSi7Mg-F?
Yes. AlSi7Mg-HIP has a typical yield strength of 185 MPa (26.8 ksi) against 90 MPa (13.1 ksi) for AlSi7Mg-F — about 106% more. Tensile strength is 275 MPa (39.9 ksi) vs 170 MPa (24.7 ksi).
Which condition does FabDigit quote by default, F or HIP?
As Printed is the default AlSi7Mg condition in the FabDigit quote flow (neither F nor HIP). 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, AlSi7Mg-F or AlSi7Mg-HIP?
AlSi7Mg-F, by a small margin. Both rate good for machinability — 60/100 against 55/100 for AlSi7Mg-HIP; for welding the order is AlSi7Mg-F first (very good, 75/100) then AlSi7Mg-HIP (very good, 70/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in AlSi7Mg-F and AlSi7Mg-HIP 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.