Different composition: heat-resistant glass is mainly composed of boron, silicon, aluminum and other elements, of which the boron content is low. And high borosilicate glass is mainly composed of silicon, boron, oxygen and other elements, boron content is more than 12%.
Different application scenarios: heat-resistant glass is widely used in chemical, food, medical and other fields due to its characteristics. High borosilicate glass is widely used in semiconductor industry and laboratory equipment due to its high strength and high temperature resistance.