What is the difference between thermally tempered and chemically strengthened glass?

Thermally tempered does not change the composition of the elements of the glass, but only changes the state and motion of the glass,

Chemically strenghened change the composition of glass elements

Processing temperature: thermally tempered is carried out at a temperature of 600℃--700℃ (close to the softening point of glass)

Chemically strenghened is carried out at a temperature of 400℃ --450℃

Processing principle: thermally tempered is quenching, and compressive stress is formed inside

Chemically strenghened is potassium and sodium ion replacement + cooling, and it is also compressive stress

Processing thickness: Chemically strenghened 0.15mm-6mm
Thermally tempered :3mm-35mm
Center stress: thermally tempered glass is 90Mpa-140Mpa:
Chemically strenghened  glass is 450Mpa-650Mpa
Fragmentation state: thermally tempered glass is partical
Chemically strenghened glass is block
Anti impact: Thermally tempered glass thickness ≥ 6mm has advantages
Chemically strenghened  glass <6mm advantage
Bending strength: Chemically strenghened is higher than thermally tempered 
Optical properties: Chemically strenghened is better than thermally tempered
Surface flatness: Chemically strenghened is better than thermally tempered

nontempered glass