Tempered glass (also known as toughened glass) is a type of safety glass that’s been processed to increase its strength compared to normal (annealed) glass.
🔧 Manufacturing Process
- Heating: Glass is heated to over 600°C (about 1112°F).
- Rapid Cooling: It’s then rapidly cooled with high-pressure air jets, a process called quenching.
- This creates compressive stress on the surface and tensile stress inside, making it much stronger.
📈 Properties
- Strength: 4–5 times stronger than standard glass.
- Safety: When broken, it shatters into small, blunt pieces instead of sharp shards.
- Thermal Resistance: Can withstand temperature changes up to ~250°C without cracking.
- Scratch Resistance: Better than regular glass, but not completely scratch-proof.
Common sizes: 6mm, 8mm, 10mm, 12mm for things like doors, partitions, and tabletops.
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