---
title: "Thermally Toughened: Performance"
description: "### Performance Thermally toughened glass: - Is highly resistant to thermal stress. It can withstand differences in temperature of approximately 200°C - Has a much higher level of mechanical strength and is more resistant to shocks than annealed glass. Thermally…"
url: "https://metalcoglazing.com/products-docs/thermally-toughened-performance/"
updated: "2024-05-23"
category: TEMPERED GLASS
---

# Thermally Toughened: Performance

### Performance

Thermally toughened glass:

- Is highly resistant to thermal stress. It can withstand differences in temperature of approximately 200°C
- Has a much higher level of mechanical strength and is more resistant to shocks than annealed glass. Thermally toughened glass is resistant to breakage due to bending of at least 120 N/mm²; for certain types of glasses, these values can be different (patterned glass 90 N/mm² and enamelled glass 75 N/mm²)
- Breaks into small, blunt pieces as per the relevant requirements. Thermally toughened glass is always a safety glass in certain applications. Its usage always depends on the application and local regulations
- Please contact your local supplier for the relevent classification
- Toughenable Magnetron coatings should be toughened to achieve the desired performance (fragmentation, optical, Ug value)
- The light, thermal and energy performance of thermally toughened glasses is exactly the same as that of the same annealed glass.

#### Finishing

- Edge finishing Toughened glasses can be supplied with several edge finishings such as:
  - Arrissed edges
  - Ground edges but some bright areas permitted
  - Ground edges but no bright areas
  - Polished edges
  In buildings, toughened glasses will be delivered with arised edges as standard but depending on the type of application, other finishings can be supplied on request.
- Other possible finishings
  - Holes
  - Notches
  - Cutting