Introduction of smooth surface U-shaped glass

The Introduction to U-profile Glass

1. Physical properties of U-shaped glass

• 1. Mechanical strength: 700~900N/mm 2 ;
• Tensile strength: 30~50 N/mm2;
• 2. Mohs hardness: 6~7
• 3. Elastic modulus: 7200 N/mm2;
• 4. Linear expansion coefficient (temperature rises by 1 degree Celsius) 75~85X10 -7
• 5. Chemical stability: 0.18mg
• 6. Light transmittance: ordinary fine-grain installation, single row: 91%, double-layer installation: 80%
• 7. Heat transfer coefficient: single row installation: 4.90W/m 2 k, double row installation: 2.35W/m 2 k, breakthrough installation 1.1W/m 2 k
• 8. Sound insulation capacity, single row installation: 27 db, double row installation: 38 db.
• 9. Fire resistance limit: 0.75 hours

2. Performance index of U-shaped glass wall:

• Wind pressure deformation performance (KPa): 4.0≤P3＜5.0 Grade II
• Rainwater seepage performance (Pa): 1000≤P＜1600 Grade Ⅲ
• Air permeability (m3/(m*h)): 0.05＜q≤0.1 Grade III
• Insulation performance K (w/(m 2 *k)): 1.1≤q≤4.9