Doped with trace elements,the red quartz tube,dark red and pink red available,is able to prevent all the UV rays and part of visible lights and meanwhile make the most of infrared rays.

It is widely used in the field of far infrared heating , such as heater ,sterilization tank, microwave oven, electric cooker, electric oven, surface drying, automobile paint baking ,etc.

Standards:Range of OD  WT  Siding 
Out of Round 
Bow/1220mm 
Length(mm)
8.00±0.15 1.0±0.10 10% 1.5% 2.5mm 1220
9.00±0.15 1.0±0.10 10% 1.5% 2.5mm 1220
10.00±0.15 1.0±0.10 10% 1.5% 2.5mm 1220
11.00±0.15 1.0±0.10 12% 1.5% 2.5mm 1220
12.00±0.15 1.0±0.10 12% 1.5% 2.5mm 1220
13.00±0.15 1.0±0.10 12% 1.5% 2.5mm 1220

Physical Properties:
Density 20℃ kg.m(×℃103) 2.2 Coefficient of expansion 25-300℃℃(×10) 0.5 Softening point (℃) 1710 Annealing point(℃) 1230 Srtain point(℃) 1140 Youngs modulus(Pa) 7.3×103