Your Professional Tempered Glass Supplier
Zibo Zhonggang Building Material Co., Ltd. Established on 2004, at first, we are a small glass deep processing factory, with the expansion of business, we purchased a production line for thermal insulation panels on 2010. In 2018, we added stainless steel fittings and aluminum profiles. Eventually, we achieved almost full coverage of the building materials industry.
Our primary product offerings include construction laminated glass, window tempered glass, ultra clear insulated glass, fence laminated glass, and other related products.
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![White Laminated Glass]()
White Laminated GlassNormal size of white laminated glass : 300*300mm-2440*3660mmview more
Delivery:normally 15 days after we received deposit
Raw material:top quality raw float glass
Quality control:... -
![Tempered Glass Wall Panels]()
Tempered Glass Wall PanelsNormal size of tempered glass wall panels : 300*300mm-2440*3660mmview more
Delivery:normally 15 days after we received deposit
Raw material:raw material:Top grade raw float glass... -
![Tempered Glass Balcony Railing]()
Tempered Glass Balcony RailingNormal size of tempered glass balcony railing: 300*300mm-2440*3660mmview more
Delivery:normally 15 days after we received deposit
Raw material:top grade raw float glass
Quality... -
![Reeded Pattern Tempered Glass]()
Reeded Pattern Tempered GlassNormal size of reeded tempered glass : 300*300mm-2440*3660mmview more
Delivery:normally 15 days after we received deposit
Raw material:top grade raw float glass
Quality control:rigid... -
![Nashiji Pattern Tempered Glass]()
Nashiji Pattern Tempered GlassNormal size of nashiji pattern tempered glass : 300*300mm-2440*3660mmview more
Delivery:normally 15 days after we received deposit
Raw material:auto grade raw float glass
Quality... -
![Tempered Glass Table Top]()
Tempered Glass Table TopNormal size of tempered glass sheet : 300*300mm-2440*3660mmview more
Delivery:normally 15 days after we received deposit
Raw material:auto grade raw float glass
Quality control:rigid... -
![Tempered Glass Sheet]()
Tempered Glass SheetNormal size of tempered glass sheet : 300*300mm-2440*3660mmview more
Delivery:normally 15 days after we received deposit
Raw material:auto grade raw float glass
Quality control:rigid... -
![Fire Resistant Tempered Glass]()
Fire Resistant Tempered GlassNormal size of fire resistant tempered glass: 300*300mm-2440*3660mmview more
Delivery:normally 15 days after we received deposit
Raw material:top grade raw float glass
Quality... -
![Digital Printed Glass]()
Digital Printed GlassNormal size of digital printed glass: 300*300mm-2440*3660mmview more
Delivery:normally 15 days after we received deposit
Raw material:top grade raw float glass
Quality control:rigid... -
![Anti-Glare Tempered Glass]()
Anti-Glare Tempered GlassNormal size of anti-glare tempered glass: 300*300mm-2440*3660mmview more
Delivery:normally 15 days after we received deposit
Raw material:good quality raw glass
Quality control:final... -
![Window Tempered Glass]()
Window Tempered GlassNormail size of window tempered glass: 300*300mm-2440*3660mmview more
Delivery:normally 15 days after we received deposit
Raw material:best quality raw float glass
Quality... -
![Decorative Tempered Glass]()
Decorative Tempered GlassNormal size of decorative tempered glass: 300*300mm-2440*3660mmview more
Delivery:normally 15 days after we received deposit
Raw material:auto grade good quality raw float glass...
Why Choose us
Professional Solutions
Leveraging our extensive experience and dedicated one-to-one service, we are capable of assisting you in selecting appropriate products and providing detailed answers to technical inquiries.
Quality Assurance
Each batch of goods is accompanied by a corresponding quality inspection report, addressing any concerns regarding product quality.
Rich Experience
We have 20 years of building materials manufacturing history, and can provide customers architectural glass, stainless steel accessories, thermal insulation boards, aluminum profiles, etc.
Parameter
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Wind pressure resistance |
≥1.5kPa |
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Temperature difference resistance |
-40℃~200℃ |
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Beautiful high light transmittance |
(≥89%), no green edge (ultra-white tempered glass transmittance ≥91.5%). |
Benefits of Tempered Glass
Strong
Tempered glass is approximately 4x stronger than annealed glass, or “ordinary” glass. Tempered glass gets its strength from the thermal tempering process used to manufacture tempered glass. During the quenching step (a high-pressure cooling procedure), the outer surface of the glass goes into compression. Glass in compression is about 5x less breakable than glass in tension. The end result – tempered glass that can withstand direct blows, powerful winds, and minor explosions.
Safe
Tempered glass is designed for safety. In the event that it does encounter a blow large enough to shatter it, tempered glass breaks into small granules instead of sharp shards. This safety precaution is another reason tempered glass is so widely used.
Heat-resistant
Tempered glass can withstand temperatures up to 470 degrees Fahrenheit. Because it is heat resistant, tempered glass is ideal for kitchen appliances and for use in areas that may regularly be in contact with heat.
Scratch-resistant
The thermal process that makes tempered glass so strong also makes it scratch-resistant and preserves the clarity and transparency of the glass. This is one reason car windows, phone screens, and glass doors are made of tempered glass.
Versatile
Tempered glass is available in a variety of different designs and patterns, making it perfect for use wherever glass is needed.
Application of Tempered Glass
The most common place you’ve probably seen tempered glass, maybe without even knowing it, is in cars and other vehicles.
Because it’s so much stronger and safer than annealed glass, tempered glass has been used to reduce the chances of injuries caused by broken glass in vehicular accidents since around the 1930s.
The other main application of tempered glass is in all types of commercial buildings. It is used for glass doors, windows, and storefronts for added strength and to increase the safety of occupants on the inside.
Tempered glass is also used for other architectural glass, such as glass stairwells, railings, floors, and walls. Wherever there is the chance of an accidental impact or where people are in close contact with glass surfaces in commercial buildings, tempered glass is generally required.
Besides being widely used in vehicles and commercial architecture, tempered safety glass is used for many other day-to-day applications, including:
Phone screen/other screen protectors
Glass furniture
Microwave and convection oven doors
Other appliances
Residential skylights
Shower and tub enclosures
The Tempered Glass Manufacturing Process
Raw Materials
The journey of tempered glass begins with the selection of high-quality raw materials. Silica sand, soda ash, limestone, and other additives are carefully measured and mixed to create a specific glass composition. This mixture is then melted in a furnace at high temperatures until it transforms into molten glass.
Glass Forming
The molten glass is shaped into sheets through a process known as float glass manufacturing. The glass is poured onto a bath of molten tin, where it spreads and levels to create a flat and uniform surface. This method ensures the production of large, high-quality glass sheets with minimal imperfections.
Cooling and Annealing
Once the glass is formed, it undergoes a controlled cooling process called annealing. This involves gradually reducing the temperature to relieve internal stresses in the glass. This step is crucial for preventing any deformation or distortion in the final product. The annealed glass is then cut into the desired size and shape.
Heat Treatment
The defining characteristic of tempered glass lies in its heat treatment process. The glass is heated to a high temperature, typically around 620 degrees Celsius (1,148 degrees Fahrenheit), and then rapidly cooled using high-pressure air jets. This rapid cooling, known as quenching, creates a state of high compressive stress on the glass surface while maintaining tensile strength in the core.
Surface Compression
The surface compression resulting from the quenching process is what gives tempered glass its strength and shatter-resistant properties. The outer layer of the glass is forced into compression, making it more resistant to impact and thermal stress. In the event of breakage, tempered glass fractures into small, blunt pieces rather than sharp shards, enhancing safety.
Quality Inspection
Quality control is a critical step in the production of tempered glass. Each sheet undergoes rigorous inspection to ensure it meets industry standards for strength, clarity, and overall quality. Any defects or irregularities are identified and addressed to guarantee the reliability of the final product.
Delivery Information
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Terms Of Payment |
L/C, T/T, Western Union, PayPal. |
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Delivery time |
15-30 days |
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Package |
Unique designed strong wooden cases or plywood cases. |
Delivery Information
Shipping Methods
We offer various shipping methods, including sea freight, air freight, and express delivery, depending on the order size and destination.
Estimated Delivery Time
We will provide you with the estimated delivery time for your order, which will be clearly stated in the formal order to ensure your rights are protected, allowing you to arrange for the receipt of your goods in a timely manner.
Order Tracking
We provide order tracking services, allowing you to stay informed about the current status and expected arrival time of your order. Detailed inspection information and shipping manifests, including photos and videos, are provided to ensure the security of your transactions.
FAQ
As one of the most professional tempered glass manufacturers and suppliers in China, we're featured by quality products and good price. Please rest assured to buy customized tempered glass from our factory.
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