What is the Difference Between Tempered Glass and Heat Strengthened Glass?
Tempered glass and heat-strengthened glass are both types of safety glass used in various applications. However, there are key differences between the two in terms of strength, thickness, and cost. Choosing the right type of glass for your project depends on your specific needs and requirements. Learn more about tempered glass vs heat-strengthened glass in this informative article.
In today's market news, we explore the differences between tempered glass and heat-strengthened glass, their various applications and the current marketplace for both types of safety glass. before we compare the differences between tempered glass and heat strengthened glass. lets explain first what is tempered glass and what is heat strengthened glass.
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Tempered glass,also known as strengthened glass, reinforced glass, toughened glass, is a type of prestressed glass that creates compressive stress on the surface of the glass through chemical or physical methods, thereby improving its strength and safety. The mechanical strength and thermal shock resistance of tempered glass have been significantly improved. Even if the tempered glass is damaged, it will be broken into small fragments without sharp angles, which greatly reduces the damage to the human body.
The production process of tempered glass involves heating ordinary glass to close to the softening point and then cooling it rapidly and evenly to form compressive stress on the glass surface. This treatment allows the surface stress of the tempered glass to be offset first when it is subjected to external forces, thereby improving its load-bearing capacity and resistance to wind pressure, cold and heat, and impact.
What is Heat Strengthened Glass:
Heat Strengthened Glass is also called Semi-Tempered Glass. Heat strengthened glass is a type between ordinary flat glass and tempered glass. It has some advantages of tempered glass, such as higher strength than ordinary float glass, which is twice that of ordinary float glass. At the same time, it avoids the disadvantages of tempered glass. Semi-tempered glass(heat strengthened glass) has unsatisfactory weaknesses such as poor flatness, easy self-explosion, and overall shattering once damaged. When semi-tempered glass is damaged, it will crack radially along the crack source, and there is generally no tangential crack expansion, so it can generally remain intact after damage.
Main Differences between Tempered Glass and Heat Strengthened Glass:
The main differences between heat strengthened glass and tempered glass are in strength, safety and production technology.
--1. Differences in Strength and safety
----1.1.
Tempered glass: Tempered glass is safety glass. It becomes granular when broken and will not cause serious harm to the human body. The surface stress of tempered glass is 69~168Mpa, its strength is 4 times or more than ordinary glass, and it has good thermal stability and mechanical strength.
----1.2.
Heat Strengthened glass: The strength of heat strengthened glass is twice that of ordinary glass, and the surface stress is 24~69Mpa, which is lower than tempered glass but higher than ordinary glass. When heat strengthened glass is broken, it will show through cracks and will not form small closed fragments, thus avoiding the risk of broken glass falling from the building and injuring people.
--2. Differences in Production Process and Characteristics
----2.1.
Production process: Both tempered glass and heat strengthened glass require heat treatment in a tempering furnace, but heat strengthened glass has lower processing requirements than tempered glass.
----2.2.
Safety: Tempered glass is safety glass, while semi-tempered glass(heat strengthened glass) is not safety glass. Tempered glass will be in the form of granules when broken and will not cause serious harm to the human body; semi-tempered glass will show through cracks after being broken. Although the fragments are larger, they will not form sharp cracking edges.
----2.3.
Flatness and risk of self-explosion: Tempered glass has poor flatness and is prone to self-explosion; Heat strengthened glass (also called semi-tempered glass) has better flatness and is less likely to self-explode, making it suitable for applications requiring high flatness.
--3. Differences in Applications
----3.1.
Tempered glass: often used in situations requiring high safety and strength, such as car windshields, certain parts of buildings, intelligent furniture, electronics, home and kitchen appliances, etc.
----3.2.
Semi-tempered glass(heat strengthened glass): Commonly used in applications that require high flatness and good thermal shock resistance, such as building curtain walls, automobile side windows, etc.
In conclusion, choosing the right type of safety glass for your project depends on your specific needs and requirements. Tempered glass and heat-strengthened glass are both excellent options when it comes to safety, but they differ in terms of strength, thickness, and cost. The marketplace for tempered glass is currently on the rise, and its applications are widespread, whereas heat-strengthened glass remains a solid option for specific purposes.
About Huide Glass:
Huide Glass has been in that processing business of tempered glass sheets products for around 13 Years since 2011. We have strong production and development capabilities, and currently has 7 automatic cutting machines, 8 edge grinding lines, there are 8 CNC precision grinding processing centers; there are 3 tempering furnaces(one for North-Glass, one for Yihai, and one for continuous tempering furnace SOUTHTECH). we can fabricate tempered glass sheet products 3,000,000 square meter per year.
Tempered Glass We Made used For Home Appliances&Furniture:
Our tempered glass products includes tempered glass shelf for refrigerator, tempered glass door for refrigerators, tempered glass lid for household washing machines, tempered glass sheet for smart tea table top or bedside table top, tempered glass cover panel for water cleaner and water heater, tempered glass cover for advertising billboard, tempered glass top and front door panel for tea bar machine, tempered glass door sheet for ovens, tempered glass sheet for gas stoves, tempered glass cover panel for display cabinet, display box, or tempered glass cover sheet for showcase counter,etc, and also we can do customized manufacturing according to your unique real applications. if you want to know more, don't hesitate to contact us.
