Black Color Boro Glass Rod

Product Name : Black Color Boro Glass Rod Thermal Expansion Coefficient Product Description : Offering pyrex glass tube , widely used for Lighting, Chemical, Advertising, Prototyping, TIG welding, Electronics, Architecture, Art and Design, Science & Health. Our tube and rod totals in 39 color shades. not only sustainable, user-friendly and eco-friendly, Price of product ( USD price or FOB price) : USD 30000- USD32000 per MT Product origin : China Key Specifications/Special Features : A wide variety of diameter and thickness, arranging from 3mm to 300mm, regular length can be 1220mm/1500mm, Port Of Loading Tianjin Port, Payment TermT/T,LC Delivery Time Shipment within 5 working days daysif in stock Our borosilicate glass main composition: SiO2,80±0.5%, B2O3,13±0.2%, Al2O3,2.4±0.2%, Na2O+K2O ,4.3±0.2%. Its physical and chemical properties: CTE at 20°C/300°C is 3.3±0.1 (10-6K-1); transformation temperature is 525±15°C ;Softening point is 820±10°C; Melting point is 1260±20°C;Hydrolytic resistance at 98°C conforms to ISO719-HGB1; Hydrolytic resistance at 121°C conforms to ISO720-HGA1;Acid resistance class conforms to ISO1776-1 Alkali resistance class conforms to ISO69" Minimum Order Size and Packgaing details : Carton and 1600*1100*1100mm pallet, Minimum Order Quantity 3 tons if in stock Harmonization System (HS) Code : 70022090