Comparison between Semi Tempered Glass and Tempered Glass

        When buying glass, you often hear tempered glass and semi tempered glass. What is the difference between them?


 

        Semi-tempered glass, also known as heat strengthened glass, is annealed glass. Through high temperature and quenching, the surface layer forms a compressive stress less than 69 MPa, which increases the mechanical strength of the glass several times, that is, semi tempered glass. The surface stress of semi tempered glass is 24 ~ 69 MPa. Like ordinary glass, the strength of semi tempered glass is more than twice that of annealed glass. Safety: when it breaks, the fragments are radial, and each fragment extends to the edge, which is not easy to fall off. It is safer, but it does not belong to safety glass. Deflection: the interference of semi tempered glass is smaller than that of tempered glass and larger than that of annealed glass. Thermal stability: the thermal stability is also significantly better than that of annealed glass. The temperature difference that ordinary glass can withstand after semi tempering is about 75 ° C. Semi tempered glass will not self explode.
 

        Tempered glass is annealed glass. Through high temperature and quenching, the surface layer forms a strong compressive stress, which increases the mechanical strength of the glass several times, that is, tempered glass. The surface stress of tempered glass is 69 ~ 168 MPa. It is characterized by small obtuse particles after rupture, which will not cause major damage to human body. The strength is 4 times or more than that of ordinary glass. With good thermal stability, ordinary glass can withstand a temperature difference of about 180 ° C after tempering. The disadvantage of tempered glass is that it is easy to explode.
 

        Tip: due to the high temperature of high-temperature glass products, the products are generally semi tempered, which cannot achieve complete tempering. Tempering only enhances the compressive strength and heat stability of the glass.


If you are interested in the or need to consult, please call us +8613343800331.Pan Chao special industrial glass, Customize your persoalised glass products.
Welcome sending your inquiry: Phone :+8613343800331  Email: sales@panchaoglass.com