Gorilla Glass vs HPFS 7980
Glass · grade comparison
Gorilla Glass and HPFS 7980 are both glass grades. Gorilla Glass is the stronger of the two: tensile strength 350 MPa (50.8 ksi) against 50 MPa (7.25 ksi) for HPFS 7980, about 7.0 times as much. HPFS 7980 is harder — 800 HV against 620 HV for Gorilla Glass — which matters for wear surfaces and threads. HPFS 7980 is lighter (2.2 g/cm³ vs 2.42 g/cm³ for Gorilla Glass) and HPFS 7980 runs hotter in service (900°C vs 200°C continuous). On the shop floor, Gorilla Glass sits in a lower cost tier (standard, $$) than HPFS 7980 (high, $$$$).
Gorilla GlassChoose it when strength drives the design, or when cost is the deciding factor.
HPFS 7980Choose it when surface hardness matters, or when weight is the constraint.
Gorilla Glass vs HPFS 7980: 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.
Mechanical
Strength, stiffness, ductility and hardness at room temperature.
Elastic (Young's) Modulus
Shear Modulus
Bulk Modulus
Poisson's Ratio
Tensile Strength (Ultimate)
Compressive Strength
Flexural Strength
Fracture Toughness (K_IC)
Hardness, Vickers
Hardness, Knoop
Hardness, Mohs
Same in both: Elongation at Break 0%
Physical
Density and transition temperatures.
Density
Refractive Index
Light Transmission
Melting Point (Solidus)
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).
Corrosion Resistance
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 Diffusivity
Thermal Shock Resistance Index
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 | Gorilla Glass | HPFS 7980 |
|---|---|---|
| Default condition | Chem Strengthened | — |
| Relative cost | $$ Standard | $$$$ High |
| Min. machined wall | — | — |
| Best machined surface | — | — |
Gorilla Glass vs HPFS 7980 — frequently asked
Is Gorilla Glass stronger than HPFS 7980?
Yes. Gorilla Glass has a typical tensile strength of 350 MPa (50.8 ksi) against 50 MPa (7.25 ksi) for HPFS 7980 — about 7.0 times as much.
Which is cheaper, Gorilla Glass or HPFS 7980?
Gorilla Glass is the lower-cost material: it sits in the standard tier ($$) while HPFS 7980 is high ($$$$). 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, Gorilla Glass or HPFS 7980?
HPFS 7980, 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 Gorilla Glass and HPFS 7980 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.