transparent quartz tubes (SS/ST/CT)

Clear(High Purity) Silica(Crystal) Tube Product Serial No. SS/ST/CT 1. Application Semiconductor industry, lighting, quartz iodine lamp tube, UV etc. 2. Common difference of size: 1) Wall-deviation:not more than 20% of the wall thickness for tube of Dia.4---Dia.26mm 2) Elliptically: not more than 2%--2.5% A.Q.L. 3. Chemical Components 元素 K Fe Al Ca Mg Ti Li Na Cu B Mn Co Ni OH ppm 2.3 1.0 15 2.0 0.9 4.5 1.0 2.6 0.07 0.1 0.9 0.1 0.02 <10 4. Physical Properties Specific Gravity（g/cm?） 2.2 Compression Strength (kg/cm?) 20x10? Tensile Strength (kg/cm?) 70 Flexuosity （%） ±0.2 Coefficient of expansion due to heat (?C) 0.5x10??/?C Softing Point (?C) 1730 Mohs Hardness 6.7 Corrosion Resistance Avoid any acids except HF acid. Thermal Stability（ＧＢ10701-89） Crackles or gaps (not for cut off surface) shouldn?t appear in the sample when suddenly cooling from 900±20?C to 0?C. Optical color variation(GB4121-83) Testing the optical variation value of the sample in high temperature furnace of constant 1000±20?C, or cooling to house temperature. 5. Diaphaneity Table Wave Length(nm) Diaphaneity（%） Thickness(mm) 230 81.5 83.2 240 82.2 83.8 250 84.0 85.3 260 86.9 87.7 270 88.3 88.9 280 89.2 89.7 290 90.1 90.4 300 90.7 90.9 310 90.0 90.3 320 91.5 91.6 330 91.5 91.6 340 91.2 91.3 400 92.5 92.4 500 94.0 93.7 550 94.5 94.1 600 95.1 94.6 650 95.1 94.6 700 95.0 94.5 750 94.9 94.4 800 94.5 94.1 850 94.3 93.9 900 93.2 93.0 6. Main Specifications ( A Part of Only) l Outside Diameter: 1.5----110mm l Inside Diameter: 0.5---100mm l Wall thickness: 0.5?10mm l Tolerance: 0.01---0.5mm Clear Silica Tube Specifications ( A Part of Only) Item No. Re-Order No.(Specifications) I. D. (mm) O. D. (mm) Wall Thickness (mm) Max. Siding (mm) Max. Ovality (mm) 1 2x3 2.0±0.15 3.0±0.15 0.5±0.06 0.05 0.06 2 2.4x4.5 2.4±0.15 4.5±0.15 1.05±0.08 0.05 0.06 3 3x5 3.0±0.15 5.0±0.15 1.0±0.1 0.10 0.10 4 4x6 4.0±0.20 6.0±0.20 1.0±0.1 0.10 0.10 5 5x7 5.0±0.20 7.0±0.20 1.0±0.1 0.10 0.10 6 6x8 6.0±0.20 8.0±0.20 1.0±0.1 0.10 0.10 7 7x9 7.0±0.20 9.0±0.20 1.0±0.1 0.10 0.10 8 8x10 8.0±0.20 10.0±0.20 1.0±0.1 0.10 0.10 9 9x11 9.0±0.20 11.0±0.20 1.0±0.1 0.10 0.10 10 10x12 10.0±0.20 12.0±0.20 1.0±0.1 0.10 0.10 11 11x13 11.0±0.20 13.0±0.25 1.0±0.1 0.10 0.10 12 12x14 12.0±0.20 14.0±0.25 1.0±0.1 0.10 0.10 13 12x15 12.0±0.20 15.0±0.25 1.5±0.2 0.10 0.15 14 12x16 12.0±0.20 16.0±0.25 2.0±0.25 0.10 0.15 15 13x15 13.0±0.25 15.0±0.30 1.0±0.20 0.10 0.15 16 14x16 14.0±0.25 16.0±0.30 1.0±0.20 0.10 0.15 17 15x18 15.0±0.30 18.0±0.30 1.5±0.25 0.15 0.2 18 16x18 16.0±0.30 18.0±0.30 1.0±0.20 0.15 0.2 19 16x20 16.0±0.30 20.0±0.40 2.0±0.25 0.15 0.2 20 17x20 17.0±0.30 20.0±0.40 1.5±0.25 0.15 0.2 21 18x20 18.0±0.30 20.0±0.40 1.0±0.20 0.15 0.2 22 20x23 20.0±0.30 23.0±0.40 1.5±0.25 0.15 0.2 23 21x25 21.0±0.40 25.0±0.50 2.0±0.25 0.2 0.3 24 22x25 22.0±0.40 25.0±0.50 1.5±0.20 0.2 0.3 25 22x26 22.0±0.40 26.0±0.50 2.0±0.25 0.2 0.3 26 23x27 23.0±0.40 27.0±0.50 1.5±0.20 0.2 0.3 27 24x28 24.0±0.50 28.0±0.50 2.0±0.20 0.2 0.3 28 25x28 25.0±0.50 28.0±0.50 1.5±0.20 0.2 0.3 29 26x28 26.0±0.50 28.0±0.50 1.0±0.20 0.2 0.3 30 26x30 26.0±0.50 30.0±0.60 2.0±0.20 0.2 0.4 31 27x33 27.0±0.50 33.0±0.60 3.0±0.25 0.2 0.4 32 28x32 28.0±0.50 32.0±0.60 2.0±0.20 0.2 0.4 33 30x34 30.0±0.60 34.0±0.80 2.0±0.20 0.2 0.4 34 34x38 34.0±0.70 38.0±0.80 2.0±0.20 0.2 0.4 35 35x40 35.0±0.70 40.0±1.0 2.5±0.25 0.2 0.5 36 40x45 40.0±0.80 45.0±1.0 2.5±0.25 0.2 0.5 37 45x50 45.0±0.80 50.0±1.0 2.5±0.25 0.2 0.5 Note: 1. The Outside Diameter(O.D.) range shall be as fr