Half-tempered glass is also called heat-strengthened glass.
Half-tempered glass is a variety between ordinary flat glass and tempered glass. It has some advantages of tempered glass, such as higher strength than ordinary float glass, which is twice that of ordinary float glass. At the same time, it avoids tempered glass unsatisfactory weaknesses such as poor flatness, easy self-explosion, and overall shattering once damaged.
When half-tempered glass is damaged, it cracks radially along the crack source, and generally there is no tangential crack propagation, so it can still maintain the whole body without collapsing under normal circumstances after damage.
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