Corning® Gorilla® Glass 4
Original Manufacturer Reference · Corning · Chemically strengthened cover glass
Product Overview
Thin protective cover glass focused on damage resistance, retained strength and improved drop performance after ion exchange.
Typical Applications
- Smartphones, tablets and notebook displays
- Touchscreens and optical components
- Thin high-strength glass articles
Reference Specifications
The following values are condensed from the supplied manufacturer data sheet. Test conditions are retained where they affect interpretation.
| Available thickness | 0.4–1.0 mm |
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| Density | 2.42 g/cm³ |
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| Young’s / shear modulus | 65.8 / 26.0 GPa |
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| Poisson’s ratio | 0.22 |
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| Vickers hardness | 489 unstrengthened; 596 strengthened, kgf/mm² |
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| Fracture toughness | 0.67 MPa·m½ |
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| CTE | 86.9 × 10⁻⁷/°C, 0–300°C |
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| Strengthening reference | >850 MPa compressive stress; >50 µm DOL |
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China-Made Alternative Products
China-made high-strength cover glass is proposed against the required thickness, chemical-strengthening profile, surface defect limit, optical transmission and finished-part drop or bending test—not by model name alone.
Recommended matching criteria:
- Thin Chinese aluminosilicate cover glass
- CNC/laser shaping and edge finishing
- Strengthening plus finished-part validation
Target modelCritical parametersCandidate gradeSample testingBatch qualification
Customization and Processing
- Round wafers, square panels, windows and custom outlines
- Precision cutting, edge grinding, chamfering and laser processing
- Single- or double-side polishing, thinning, cleaning and marking
- TTV, warp, roughness, dimensional and optical inspection to agreed criteria
Qualification Note
Important: “Alternative” means a candidate selected for the same application target. It does not mean an automatic drop-in replacement or identical composition. Final acceptance is based on agreed specifications, samples, test reports and process verification.
Request Material Matching
Manufacturer and product names are used only to identify reference materials and technical targets. Semicon Global Tech is an independent supplier and does not claim manufacturer authorization unless explicitly stated. Original-grade data and China-made alternative specifications are presented separately; supply specifications are confirmed by quotation, COA and approved samples.
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