Twin Quartz Glass Tube/Pipe

Product Name: Twin Quartz Glass Tube/Pipe Model NO.: twin tube Material: Sio2 Over 99.99% Shape: Tube Type: Refractory Material Feature: Long Time Materials Refractoriness (?): 1100-1600 Advantage: High Temperature Resistance Color: Transparent Surface: Polished Trademark: yongsin Transport Package: Strong Wooden Box Specification: according to request Origin: Donghai, China HS Code: 7002209000 Product Description 1. Material: Real quartz2. External Diameter: 23/333. Tolerance of External Diameter: 0.3/0.44. Wall Thickness: 1.3/1.65. Tolerance of Wall Thickness: 0.2/0.2It's widely used in electric heating products, such as heating tube, electrical heated tube, electronic oven, etc.Physical properity:SiO299.997%Density :(g/cm3)2.2Degree of hardness moh' scale (Pa)6.6Melting point:1732°CWorking temperature :1100°CMax temperature can reach in a short time :1450°CAcid tolerance:30 times than Ceramics,150 times than stainless steelVisible light transmittance:above 93%UV spectral region transmittance:80%Resistance value:10000 times than ordinary glassAnnealing point:1180°CSoftening point:1630°CStrain point:1100°CChemical Composition(ug/g)CrGeFeMgTiGaAlNaLi K0.10.41.50.40.10.8162.30.5 2