Tempered glass and semi-tempered glass (also called heat-reinforced glass) both require heat treatment, but have different strengths and uses.

tempered glass:

Cooling process: fast, with high surface stress (10,000 psi)

Strength: Four to five times stronger than ordinary float glass

Safety: safety glass. broken into small, blunt pieces

Usage: Doors, shower rooms, windows, furniture

Semi-tempered glass (also called thermally strengthened glass)：

Cooling process: Slower, with lower surface stresses (3,500-7,500 psi)

Strength: twice as strong as ordinary float glass

Safety: Non-safety glass. When broken, larger fragments and radioactive cracks are formed

Purpose: Application fields that have high imaging requirements and require certain tempered glass properties