What is the difference between chemical tempering and physical tempering of glass? Where to sell tempered glass?

Processing temperature: physical tempering is carried out at a temperature of 600 ° C - 700 ° C (close to the softening point of the glass)

Chemical tempering is carried out at a temperature of 400 ° C - 450 ° C

Processing principle: physical tempering is quenched and cooled, the internal formation of compressive stress

Chemical tempering is the replacement of potassium and sodium ions and cooling, also compressive stress

Processing thickness: chemical tempered 0.15mm-50mm

Physical tempered 3.2mm-35mm

Surface stress value: physical tempered glass is 90Mpa-140Mpa

Chemical tempered glass is 450Mpa-650Mpa

Fragmentation state: Physical tempered glass is granular

Chemical tempered glass is lumpy

Impact strength: physical tempered glass thickness ≥ 6mm has the advantage

Chemical tempered glass <6mm advantage

Bending strength: chemical tempered is higher than the physical tempered

Optical properties: chemical tempered is better than physical tempered

Surface flatness: chemical tempered is better than physical tempered