![\"\u0623\u0646\u0628\u0648\u0628](\"https:\/\/www.fuyao-quartz.com\/wp-content\/uploads\/2026\/03\/20180119144041_27753-300x196.jpg\")
<\/p>\nOptical fused silica quartz tubes are precision-engineered components made from high-purity SiO\u2082 (\u226599.99%). The<\/p>\n
<\/p>\n
se tubes are widely used in semiconductor processing, optical systems, laboratory equipment, and high-temperature in<\/p>\n
dustrial applications.<\/span><\/p>\n Our quartz tubes are free of bubbles, stripes, chipping, or scratches, and can be manufactured according to customer designs with customized inner hole shapes (round, square, or other geometries). They combine high optical transmittance, excellent chemical resistance, and superior thermal stability for demanding applications.<\/p>\n \n High purity SiO\u2082 (\u226599.99%) with controlled impurity levels (2\u201320 ppm)<\/p>\n<\/li>\n Continuous high-temperature operation up to 1,200\u00b0C; short-term tolerance up to 1,500\u00b0C Exceptional thermal shock resistance due to low thermal expansion coefficient (5.5 \u00d7 10\u207b\u2077 \/\u00b0C)<\/p>\n<\/li>\n Acid and alkali resistance, inert to all chemicals except hydrofluoric acid<\/p>\n<\/li>\n High light transmittance depending on spectrum (85\u201395%)<\/p>\n<\/li>\n Excellent electrical insulation and dielectric properties<\/p>\n<\/li>\n Available in diameters 20\u201330 mm and lengths from 10 mm to 3,000 mm<\/p>\n<\/li>\n Customized inner hole shapes (round, square, or special designs)<\/p>\n<\/li>\n Tolerance \u00b10.05 mm and surface roughness Ra <2 nm<\/p>\n<\/li>\n<\/ul>\n Quartz cover for wafers and semiconductor devices<\/p>\n<\/li>\n Optical communication windows and covers<\/p>\n<\/li>\n Photolithography and inspection components<\/p>\n<\/li>\n<\/ul>\n Optical glass lenses and substrates<\/p>\n<\/li>\n Custom quartz optical windows<\/p>\n<\/li>\n High-transmittance optical components<\/p>\n<\/li>\n<\/ul>\n Custom reaction vessels and tubes<\/p>\n<\/li>\n Laboratory sight glasses<\/p>\n<\/li>\n Precision measurement and experimental setups<\/p>\n<\/li>\n<\/ul>\n Furnace observation tubes<\/p>\n<\/li>\n Reactor tubes and protective sheaths<\/p>\n<\/li>\n UV and IR lamp housings<\/p>\n<\/li>\n<\/ul>\n Diameter: 20\u201330 mm (or custom)<\/p>\n<\/li>\n Length: 10\u20133,000 mm<\/p>\n<\/li>\n Inner hole shapes: round, square, or other designs<\/p>\n<\/li>\n Optical coatings available on request<\/p>\n<\/li>\n Tight tolerances: \u00b10.05 mm<\/p>\n<\/li>\n Surface finish: optical grade, polished or ground<\/p>\n<\/li>\n Special machining: flaring, threading, drilling, notches<\/p>\n<\/li>\n<\/ul>\n Q1: What is the MOQ?<\/strong><\/p>\n Standard inventory: 25 pcs<\/p>\n<\/li>\n Custom or special-shaped products: 25 pcs or more<\/p>\n<\/li>\n<\/ul>\n Q2: What is the delivery time?<\/strong><\/p>\n Standard stock: 5 working days<\/p>\n<\/li>\n Custom products: 2\u20133 weeks<\/p>\n<\/li>\n Special-shaped designs: ~4 weeks<\/p>\n<\/li>\n<\/ul>\n Q3: Can the tubes be customized?<\/strong> Q4: What shipping options are available?<\/strong> Q5: What are the payment terms?<\/strong> Optical fused silica quartz tubes are precision-engineered components made from high-purity SiO\u2082 (\u226599.99%). These tubes are widely used in semiconductor processing, optical systems, laboratory equipment, and high-temperature industrial applications.<\/p>","protected":false},"featured_media":2211,"comment_status":"open","ping_status":"closed","template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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\u0627\u0644\u0631\u0626\u064a\u0633\u064a\u0629<\/h2>\n
\n
![\"\u0623\u0646\u0628\u0648\u0628](\"https:\/\/www.fuyao-quartz.com\/wp-content\/uploads\/2026\/03\/Optical-Fused-Silica-Quartz-Tube-SiO2-Crystal-Material-With-Customized-Hole-Shape1-300x300.png\")
<\/p>\n<\/li>\n\u0627\u0644\u062e\u0648\u0627\u0635 \u0627\u0644\u0641\u064a\u0632\u064a\u0627\u0626\u064a\u0629 \u0648\u0627\u0644\u0645\u064a\u0643\u0627\u0646\u064a\u0643\u064a\u0629<\/h2>\n
\n\n\n\n
\n \n\u0627\u0644\u0645\u0645\u062a\u0644\u0643\u0627\u062a<\/th>\n Value \/ Range<\/th>\n<\/tr>\n<\/thead>\n \n \u0627\u0644\u0635\u0644\u0627\u0628\u0629<\/td>\n 5.5\u20136.5 Mohs, ~570 KHN<\/td>\n<\/tr>\n \n Design Tensile Strength<\/td>\n 4.8 \u00d7 10\u2077 Pa<\/td>\n<\/tr>\n \n Design Compressive Strength<\/td>\n >1.1 \u00d7 10\u2079 Pa<\/td>\n<\/tr>\n \n Bulk Modulus<\/td>\n 3.7 \u00d7 10\u00b9\u2070 Pa<\/td>\n<\/tr>\n \n Rigidity Modulus<\/td>\n 3.1 \u00d7 10\u00b9\u2070 Pa<\/td>\n<\/tr>\n \n \u0645\u0639\u0627\u0645\u0644 \u064a\u0648\u0646\u063a<\/td>\n 7.2 \u00d7 10\u00b9\u2070 Pa<\/td>\n<\/tr>\n \n Poisson’s Ratio<\/td>\n 0.17<\/td>\n<\/tr>\n \n Coefficient of Thermal Expansion<\/td>\n 5.5 \u00d7 10\u207b\u2077 cm\/cm\u00b7\u00b0C<\/td>\n<\/tr>\n \n \u0627\u0644\u062a\u0648\u0635\u064a\u0644 \u0627\u0644\u062d\u0631\u0627\u0631\u064a<\/td>\n 1.4 W\/m\u00b7\u00b0C<\/td>\n<\/tr>\n \n Specific Heat<\/td>\n 670 J\/kg\u00b7\u00b0C<\/td>\n<\/tr>\n \n \u0646\u0642\u0637\u0629 \u0627\u0644\u062a\u0644\u064a\u064a\u0646<\/td>\n 1,683\u00b0C<\/td>\n<\/tr>\n \n \u0646\u0642\u0637\u0629 \u0627\u0644\u062a\u0644\u062f\u064a\u0646<\/td>\n 1,215\u00b0C<\/td>\n<\/tr>\n \n \u0646\u0642\u0637\u0629 \u0627\u0644\u0625\u062c\u0647\u0627\u062f<\/td>\n 1,120\u00b0C<\/td>\n<\/tr>\n \n Electrical Resistivity<\/td>\n 7 \u00d7 10\u2077 \u03a9\u00b7cm (350\u00b0C)<\/td>\n<\/tr>\n \n Velocity of Sound<\/td>\n Shear: 3,750 m\/s, Compression: 5,900 m\/s<\/td>\n<\/tr>\n \n Sonic Attenuation<\/td>\n <11 dB\/m MHz<\/td>\n<\/tr>\n \n \u0627\u0644\u0627\u0633\u062a\u0642\u0631\u0627\u0631 \u0627\u0644\u0643\u064a\u0645\u064a\u0627\u0626\u064a<\/td>\n High resistance to water and most acids (except HF)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
\u0635\u0646\u0627\u0639\u0629 \u0623\u0634\u0628\u0627\u0647 \u0627\u0644\u0645\u0648\u0635\u0644\u0627\u062a
![\"\u0623\u0646\u0628\u0648\u0628](\"https:\/\/www.fuyao-quartz.com\/wp-content\/uploads\/2026\/03\/Optical-Fused-Silica-Quartz-Tube-SiO2-Crystal-Material-With-Customized-Hole-Shape-1-300x300.png\")
<\/h3>\n\n
\u0627\u0644\u0628\u0635\u0631\u064a\u0627\u062a \u0648\u0627\u0644\u0636\u0648\u0626\u064a\u0627\u062a<\/h3>\n
\n
Laboratory and Analytical Equipment<\/h3>\n
\n
High-Temperature and Industrial Applications<\/h3>\n
\n
Customization Options<\/h2>\n
\n
\u0627\u0644\u0623\u0633\u0626\u0644\u0629 \u0627\u0644\u0634\u0627\u0626\u0639\u0629<\/h2>\n
\n
\n
Yes. Material, specifications, inner hole shapes, length, and optical coatings can all be customized to meet your requirements.<\/p>\n
We ship via DHL, FedEx, EMS, or customer-provided express accounts. Freight is calculated based on actual shipment.<\/p>\n
T\/T, PayPal, secure payment, and trade assurance options are accepted.<\/p>","protected":false},"excerpt":{"rendered":"