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Orotuff Glasses Pvt. Ltd.

Plot No. - E - 62, Site B, Surajpur, Greater Noida, Greater Noida, Uttar Pradesh - 201301, India

Mobile : +91-9311631200, +91-9311631195

Call Us : 08042754239

Orotuff Glasses Pvt. Ltd.

Heat Strengthened Glass



We are proud to be one of the famed Manufacturers and Suppliers of Heat Strengthened Glass in Greater Noida, Uttar Pradesh. This glass is preferred over annealed glass of similar thickness and configuration due to its high strength and more resistance to external stresses. Our Toughened Safety Glass is widely used because of additional strength. At our well-developed fabrication unit, Heat Treated Glass is designed in varied specifications using high-performance machinery. Owing to their sturdiness and resistance to mechanical and thermal stress, they are high on demand in the market.


Production Process :

  • Heat Strengthened Glass is produced in the same manner as toughened safety glass except that the cooling process is slower.
  • During heat strengthening, annealed glass is reheated to a high temperature, and then cooled quickly in a process called “quenching” the resulting heat-strengthened glass is twice as strong as annealed glass of equal thickness and offers significantly greater resistance to wind loads, impacts, and thermal loads.
  • The first step in the heat- strengthening process is cleaning annealed glass and cutting to size. Then it is placed in a furnace and heated to approximately 715oC. The glass is then air- cooled to create a balanced condition of stress within the glass itself, making it more resistant to external stresses.
  • Heat strengthening does not result in a “safety glass product; heat-strengthened glass breaks in a pattern similar to annealed glass.


Highlights :

  • Heat Strengthened Glass is generally twice as strong as annealed glass but still has more resistance to heat fracture and is subject to greater wind load than annealed glass.
  • Heat strengthened float glass on its own is not a safety glass but can be laminated to meet requirements.
  • When Heat Strengthened Glass breaks, it fragments into larger pieces and tends to stay intact in an opening until replaced. This is particularly useful in high rice spandrel and above ground floor panels because the fragments do not fall into the ground below. Like toughened glass, it cannot be cut, drilled or edge worked. Less visual distortion is also evident when compared to toughened glass.
  • Heat-strengthened products form ORO Tuff are perfect for many commercial applications include spandrels, windows in high wind load areas, and applications where the glass is expected to develop high thermal stresses.