Technology

Glass materials

Borosilicate glass type�T: 062 (SPE), 096 (W-3)
Extremely low thermal expansion coefficients and excellent thermal resistance.
Use mainly in high surface temperature light bulbs, electrical tubes, and vessels. 062 also demonstrates excellent UV transparency, and was used in the photomultiplier covers in the Super Kamiokande detector.

Borosilicate glass type �U: 051 (TX-51A), 085 (KS-70)
Low thermal expansion coefficients and excellent thermal resistance.
Thermal expansion coefficients matching those of Tungsten (051) and Kovar (085), make these materials ideal for use in electrical tubes..

Borosilicate glass type �V: 300 (HM-3)
Very high softening temperature and good resistance to deformation at high temperatures.
These properties suit this material to uses in ship engine internal temperature monitoring devices and rods used in special electric discharge tubes.

UV transparent glass: 201 (UVD-3)
Material developed especially to make it highly transparent to UV light.
Colored deep blue to cut visible light frequencies, this material has applications in counterfeit bill detection, and guidance lighting designed to reduce photodamage.　

Properties	Borosilicate glass					UV transparent glass
	type �T		type �U		type �V
	062	096	051	085	300	201
Thermal expansion coeff.( /)	34	39	38	51	43	104
Strain point()	490	490	510	460	705	380
Glass transition point()	520	520	530	490	720	−
Annealing point()	540	540	550	510	735	430
Softening point()	790	770	785	720	920	650
Specific density	2.23	2.27	2.25	2.26	3.75	2.9