Alumina-Lime-Silica Glass (IEC G-400) vs Gorilla Glass
Glass · grade comparison
Alumina-Lime-Silica Glass (IEC G-400) and Gorilla Glass are both glass grades. Gorilla Glass is the stronger of the two: tensile strength 350 MPa (50.8 ksi) against 60 MPa (8.7 ksi) for Alumina-Lime-Silica Glass (IEC G-400), about 5.8 times as much. Gorilla Glass is lighter (2.42 g/cm³ vs 2.6 g/cm³ for Alumina-Lime-Silica Glass (IEC G-400)) and Alumina-Lime-Silica Glass (IEC G-400) is stiffer (87 GPa vs 72 GPa). On the shop floor, Gorilla Glass sits in a lower cost tier (standard, $$) than Alumina-Lime-Silica Glass (IEC G-400) (premium, $$$).
Alumina-Lime-Silica Glass (IEC G-400)Choose it when the part sees heat.
Gorilla GlassChoose it when strength drives the design, or when weight is the constraint.
Alumina-Lime-Silica Glass (IEC G-400) vs Gorilla Glass: propertiesHow to read these bars
- One bar per material. A full bar is the highest value among all glass 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 glass 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.
Alumina-Lime-Silica Glass (IEC G-400)Gorilla Glass
Mechanical
Strength, stiffness, ductility and hardness at room temperature.
Elastic (Young's) Modulus
Shear Modulus
Bulk Modulus
Poisson's Ratio
Tensile Strength (Ultimate)
Flexural Strength
Shear Strength
Fracture Toughness (K_IC)
Hardness, Knoop
Same in both: Elongation at Break 0% · Compressive Strength 1,000 MPa145 ksi · Hardness, Vickers 620 HV · Hardness, Mohs 6.5
Physical
Density and transition temperatures.
Density
Refractive Index
Light Transmission
Same in both: Porosity 0%
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Specific Heat Capacity
Thermal Expansion (CTE, 20–100 °C)
Max Service Temperature (continuous)
Min Service Temperature
Electrical
Conductivity and insulation.
Electrical Resistivity
Dielectric Strength
Dielectric Constant (1 MHz)
Dissipation Factor (1 MHz)
Volume Resistivity
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Same in both: Corrosion Resistance 90 / 100
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Polishability
Sustainability
Primary-production footprint per kilogram.
Embodied Energy (primary production)
Embodied Carbon (primary production)
Embodied Water
Typical Recycled Content
Common Calculations
Ratios derived from the values above.
Specific Strength (UTS / density)
Specific Stiffness (E / density)
Thermal Shock Resistance Index
Same in both: Thermal Diffusivity 0.5 mm²/s
Strength versus weight
Yield strength against density for every glass grade in the FabDigit library; the compared grades are highlighted. Up and left is stronger for its weight.
Manufacturing and finishing
| Capability | Alumina-Lime-Silica Glass (IEC G-400) | Gorilla Glass |
|---|---|---|
| Default condition | — | Chem Strengthened |
| Relative cost | $$$ Premium | $$ Standard |
| Min. machined wall | — | — |
| Best machined surface | — | — |
Alumina-Lime-Silica Glass (IEC G-400) vs Gorilla Glass — frequently asked
Is Gorilla Glass stronger than Alumina-Lime-Silica Glass (IEC G-400)?
Yes. Gorilla Glass has a typical tensile strength of 350 MPa (50.8 ksi) against 60 MPa (8.7 ksi) for Alumina-Lime-Silica Glass (IEC G-400) — about 5.8 times as much.
Which is cheaper, Alumina-Lime-Silica Glass (IEC G-400) or Gorilla Glass?
Gorilla Glass is the lower-cost material: it sits in the standard tier ($$) while Alumina-Lime-Silica Glass (IEC G-400) is premium ($$$). Part price depends far more on geometry, tolerance and quantity than on raw stock — upload a CAD file for a live quote.
Which is easier to machine, Alumina-Lime-Silica Glass (IEC G-400) or Gorilla Glass?
Alumina-Lime-Silica Glass (IEC G-400), by a small margin. Both rate not recommended for machinability — 12/100 against 5/100 for Gorilla Glass.
Ready to make it?
Upload a CAD file and FabDigit prices the part in Alumina-Lime-Silica Glass (IEC G-400) and Gorilla Glass 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.