... .92*103kg/m3Compression Strength>1.0*109Pa(N/m2)Coefficient of Thermal Expansion5.4*10-7cm/cm° ... 6000h service life, with SGS, RoHs approved8. Widely used in infrared heater, cooking, oven, stove, baker, painting dryer, drying apparatus, ... heater lamp :package of ir quartz tube heater lamp our factoryproduction lineother infrared heating element FYI ir quartz tube heater lamp for infrared heater