Gorilla Glass GG5
Grade
also Corning Gorilla, Aluminosilicate Strengthened
GG5 = gorilla Glass 5
Higher-modulus, deeper-DOL composition optimised for face-down drop survival on rough surfaces.
Values for the GG5 condition
Other Gorilla Glass tempers and conditions
Gorilla Glass is listed in 3 conditions; see the grade overview at Gorilla Glass.
Compare all 3 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
Gorilla Glass 3 | Lower-modulus NDR composition tuned for scratch/flaw tolerance; common on mid-range and industrial touch panels. | — | 330 | 0 | 595 HV | 0.96 W/m·K |
GG5This page Gorilla Glass 5 | Higher-modulus, deeper-DOL composition optimised for face-down drop survival on rough surfaces. | — | 375 | 0 | 645 HV | 1 W/m·K |
Gorilla Glass Victus / Victus 2 | Latest-generation composition giving both higher scratch resistance and drop performance; premium smartphone cover glass. | — | 400 | 0 | 670 HV | 1 W/m·K |
What is Gorilla Glass GG5?
Gorilla Glass GG5 is Gorilla Glass in the GG5 grade — higher-modulus, deeper-DOL composition optimised for face-down drop survival on rough surfaces. Gorilla Glass GG5 has a tensile strength of 375 MPa (54.4 ksi), stronger than 92% of glass grades. Elongation at break is 0% and the elastic modulus is 76.7 GPa (11.1 Msi). Gorilla Glass GG5 has a density of 2.43 g/cm³ (0.0878 lb/in³), lighter than 76% of glass grades.
Limitations
- Difficult to machine — 4/100, worse than 95% of glass grades
- Limited service temperature — 200°C (392 °F), worse than 88% of glass grades
- Poor heat conductor — 1 W/m·K (0.578 BTU/hr·ft·°F), worse than 77% of glass grades
Gorilla Glass GG5 properties
Typical room-temperature values for Gorilla Glass GG5; 17 are specific to this condition. Other listed values are Gorilla Glass reference data and may not represent this condition. Bars are the position among glass grades.
Physical4
Gorilla Glass GG5 has a density of 2.43 g/cm³ (0.0878 lb/in³), lighter than 76% of glass grades.
Mechanical12
Gorilla Glass GG5 has a tensile strength of 375 MPa (54.4 ksi), stronger than 92% of glass grades. Elongation at break is 0% and the elastic modulus is 76.7 GPa (11.1 Msi).
Thermal5
Gorilla Glass GG5 is rated for continuous service to 200°C (392 °F). It conducts heat at 1 W/m·K (0.578 BTU/hr·ft·°F), worse than 77% of glass grades. Thermal expansion is 8.3 µm/m·K (4.61 µin/in·°F).
Electrical5
Gorilla Glass GG5 is an electrical insulator with a dielectric strength of 15 kV/mm (381 V/mil) and a resistivity of 1×10¹² Ω·m.
Chemical & Environmental2
Corrosion resistance is excellent (90/100), better than 73% of glass grades.
Sustainability4
Producing a kilogram of Gorilla Glass GG5 takes about 35 MJ of energy and emits 2.6 kg of CO₂ — less than 71% of glass grades. Typical recycled content is 3%.
Manufacturability2
Gorilla Glass GG5's machinability is not recommended (4/100, worse than 95% of glass grades).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with Gorilla Glass GG5
Is Gorilla Glass easy to machine?
Cut, drill and edge-finish only in the un-strengthened state using diamond scribe/CNC grinding or laser (filamentation) cutting; never machine after ion exchange or the compressive layer releases and the part shatters.
Can Gorilla Glass be welded?
Not weldable; join by optically clear adhesive (OCA), silicone gasketing or glass-frit/laser sealing to another glass in the annealed state.
Can Gorilla Glass be formed, bent or molded?
Flat sheet is fusion-drawn to final thickness (0.4–2 mm); 2.5D/3D shapes are hot-formed on graphite tooling near the softening point (~850–900 °C) and then ion-exchanged in molten KNO₃ at 380–460 °C.
What surface finishes work on Gorilla Glass?
Standard finishes are optical polish, HF-etched anti-glare, AR/AF (fluorosilane) coatings and screen-printed ceramic/organic borders; avoid strong alkaline cleaners and any HF-bearing chemistry.
Gorilla Glass chemical composition (wt %)
Limits by weight percent from the governing specification, written the way the spec states them — a single maximum for impurities, a range for alloying elements, and the base element as balance. Nominal is the typical mid-range value.
| Element | Spec limit (wt %) | Nominal |
|---|---|---|
| Al2O3high alumina enables fast K⁺/Na⁺ ion exchange | 10 – 17 | 14 |
| Na2Oexchangeable alkali | 10 – 16 | 14 |
| MgO | 0 – 6 | 3 |
| K2O | 0 – 3 | 0.6 |
| Li2Opresent in later Li-aluminosilicate generations only | 0 – 5 | — |
| ZrO2durability / liquidus control | 0 – 2 | — |
| SnO2fining agent | 0 – 1 | 0.2 |
| CaOkept low, slows ion exchange | 0 – 0.5 | — |
| SiO2network former | ≥ 60 (balance) | — |
Gorilla Glass GG5 — frequently asked
What is Gorilla Glass GG5 used for?
Gorilla Glass GG5 is typically used for smartphone screens, tablet and laptop touch panel covers, wearable and smartwatch cover lenses, automotive interior display covers, appliance and HMI control panels and kiosk and POS touchscreens. In short: chemically strengthened glass.
What is the tensile strength of Gorilla Glass GG5?
Gorilla Glass GG5 has a typical tensile strength of 375 MPa (54.4 ksi) — stronger than 92% of glass grades. Strength varies by condition: see the 3 listed tempers.
Is Gorilla Glass GG5 easy to machine?
Not especially — machinability is rated not recommended (4/100, worse than 95% of glass grades). Cut, drill and edge-finish only in the un-strengthened state using diamond scribe/CNC grinding or laser (filamentation) cutting; never machine after ion exchange or the compressive layer releases and the part shatters.
Can Gorilla Glass GG5 be welded?
Not weldable; join by optically clear adhesive (OCA), silicone gasketing or glass-frit/laser sealing to another glass in the annealed state.
What surface finishes work on Gorilla Glass GG5?
Standard finishes are optical polish, HF-etched anti-glare, AR/AF (fluorosilane) coatings and screen-printed ceramic/organic borders; avoid strong alkaline cleaners and any HF-bearing chemistry.
Can Gorilla Glass GG5 be formed, bent or molded?
Flat sheet is fusion-drawn to final thickness (0.4–2 mm); 2.5D/3D shapes are hot-formed on graphite tooling near the softening point (~850–900 °C) and then ion-exchanged in molten KNO₃ at 380–460 °C.
What is the maximum service temperature of Gorilla Glass GG5?
Gorilla Glass GG5 is rated for continuous use to about 200°C (392 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
Sources
- Corning Gorilla Glass 3 / Gorilla Glass 5 / Gorilla Glass Victus Product Information Sheets — Corning Incorporated (2021)
- ASM Engineered Materials Handbook, Vol. 4: Ceramics and Glasses — ASM International (1991)
- ASTM C1499 — Monotonic Equibiaxial Flexural Strength of Advanced Ceramics (ring-on-ring) — ASTM (2019)
- ASTM C1279 — Non-Destructive Photoelastic Measurement of Edge and Surface Stresses in Glass — ASTM (2021)
- Ion-exchange strengthening of alkali aluminosilicate glasses (Corning technical papers, Int. J. Appl. Glass Sci.) — Wiley / Corning (2016)
Property data is compiled from published supplier and standards handbooks and normalised for comparison. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.