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  • Curved Tempered Glass
  • Curved Tempered Glass
  • Curved Tempered Glass
  • Curved Tempered Glass
  • Curved Tempered Glass
  • Curved Tempered Glass
  • Curved Tempered Glass
  • Curved Tempered Glass
  • Curved Tempered Glass
  • Curved Tempered Glass

›

Curved Tempered Glass
Description:
Tempered glass is a type of safety glass processed by controlled thermal or chemical treatments to increase its strength compared with normal glass. When broken, it shatters into small, blunt pieces, reducing the risk of injury.
Applications:
Widely used in facades, doors, partitions, windows, and shower enclosures.
Tel: +86 15866678989
WhatsApp: +86 15866678989
E-mail: info1@wenshengglass.com
PRODUCT DESCRIPTION

Tempered Glass Definition

Tempered glass is a heat-treated safety glass that is approximately 4–5 times stronger than regular annealed glass. It breaks into small, blunt fragments to reduce injury risk.


Key Features

High mechanical strength


Thermal shock resistance

Safe breakage pattern

Heat resistance up to 250°C


Applications

Building facades and curtain walls

Glass doors and partitions

Shower rooms and bathroom enclosures

Balustrades, railings, and staircases

Furniture and appliances (e.g. tabletops, oven doors)


Subtypes

Flat tempered glass

Curved tempered glass

Printed tempered glass (with decorative patterns)

Silk screen tempered glass (with solid or dotted ceramic prints)

Insulated tempered glass (for energy efficiency)


CategoryParameterStandard ExampleTechnical Notes
Basic PropertiesGlass TypeClear Tempered, Ultra-Clear, Low-E Coated, Patterned, CurvedCustomizable colors, patterns, and coatings

Thickness Range (mm)4~19 (Common: 5/6/8/10/12/15/19)Thickness tolerance: ±0.2mm (GB 15763.2)
Mechanical PerformanceSurface Compressive Stress (MPa)≥95 (Standard)Heat-Strengthened: 24~69 MPa
≥150 (High-Strength)

Bending Strength (MPa)3~5x Annealed GlassTest method: ASTM C1048
(5mm: ≥70; 8mm: ≥90)

Impact Resistance (Steel Ball)5mm: 1040g ball @ 1m height (no break)Complies with GB 17841 safety requirements
10mm: 2270g ball @ 2m (EN 12600)
Safety FeaturesFragmentation Pattern40~400 fragments in 50×50mm area (5mm)Crumbles into granular pieces with blunt edges
Max. fragment weight: ≤0.5g (GB 15763.2)

Thermal Shock Resistance (ΔT)Withstands ≥220°C (e.g., 300°C → room temperature)No cracks (Test per GB 15763.2)
Optical PropertiesLight Transmittance (%)Clear: ≥89% (4mm)Low-E coating adjusts transmittance to 50%~80%
Ultra-Clear: ≥91% (6mm)

UV Blocking Rate (%)Clear: <60Depends on coating type
Low-E: ≥90
DimensionsMin. Size300×300 mmMost sizes customizable
Max. Size3300×13000 mm

Minimum Hole/Notch MarginEdge distance ≥2×glass thickness (e.g., 5mm glass → ≥10mm)Prevents edge stress concentration
Heating StageFurnace Temperature (°C)700~720 (near softening point)Heating time: 40~60 sec/mm (≤6mm), 60~80 sec/mm (≥8mm)
Quenching StageCooling Air Pressure (%)4mm: 95~100%Rapid cooling induces surface compressive stress
10mm: 85~90%
Edge TreatmentGrinding/PolishingCNC precision grinding (R-angle ≤0.5mm)Reduces spontaneous breakage risk
Mirror/matte finish
Special TreatmentHeat Soak Test (HST)290°C±10°C for ≥2 hours (reduces NiS-induced breakage)Lowers breakage rate from 0.3% to <0.1% (GB 15763.2)
ApplicationRecommended ConfigurationCertifications
Building Facades8~12mm clear/ultra-clear, U-value ≤1.8EN 12150, ASTM C1048, GB 15763.2
Furniture/Partitions5~8mm patterned/frosted, fragment count ≥40CNS 11227 (Taiwan), JIS R3205 (Japan)
Automotive Side Windows4~5mm curved, visible light transmittance ≥70% (GB 9656)ECE R43, ISO 3537
Solar Panels3.2~4mm ultra-clear textured, transmittance ≥91.5%IEC 61215 (UV/thermal cycling tests)


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