Product Name: Quartz Glass Appatatus Tube for Chemical Model NO.: T040 Type: Quartz Application: Semiconductor,Chemical,Electricity Certification: ISO, SGS Purity: 99.99% Min Softening Point: 1683 Degree Annealing Point: 1215 Degree Defoamation Point: 1120 Strain Point: 1110 Degree Coefficient of Thermal Expansion: 5.6*10-7 Thermal Conductance: 1.4 Comressive Strength: 1100 Tension Strength: 48 Dielectric Constant: 3.7 Trademark: yukang Transport Package: Outside Wooden Cases, Inside Carton Case with Foam Specification: as customer required Origin: Donghai, Jiangsu, China Product Description Quartz Digestion Tube1, OEM is ok, as required2, low OH3, ISO 9001-20004, no bubble no airline5, resistance 1100 degree, 1000 long time workAdvantage of the quartz glasss tube:1. High temperature resistant, 1100 degree.2. Corrosion-resistant3. Good thermal stability4. Good transparency for light5. Good electrical insulationAfter-Sale service:1) 24 hrs service for customers.2) quality issue, we accept reworking if quality is not reach your requirements.3) sample available for free.4) OEM service acceptable. Welcome your artwork.Your design and drawing are accepted, we can make as your requirement. Waitting for your special specification to offer.Chemical CompositionALFeKNaLiCaMgCuMnCrBTi5-120.19-1.50.71-1.60.12-1.760.38-0.760.17-1.230.05-0.50.050.05<0.05<0.1<1.0Spectraltransmissionat 1.0mmthicknessm m<22025528031535038590780%89919393939393.293.4PhysicalProp er ties(g/cc)Density20°Ckg.m-32.2DegreeofHardnessMoh'sScale5.5-5.6Softeningpoint(degree)1683Annealing point1215Defoamation Point1120