What information do you need to engineer a custom quartz tube or component?

Please send outer and inner diameter (or wall thickness), length, required tolerances, end configuration (open, closed, flanged, ground joint or welded fittings), material grade (transparent or opaque fused quartz), working temperature and atmosphere, annual or batch quantity, and a drawing in PDF, DWG or STEP format. Complete data lets our engineers confirm manufacturability and lead time in a single review.

What is the maximum operating temperature of fused quartz?

Transparent fused quartz typically supports continuous service around 1,100 °C and short exposures up to roughly 1,250 °C, with a softening point near 1,683 °C. Real limits depend on grade, load, atmosphere and cycle time. Above about 1,100 °C, surface contamination such as alkali residue from skin contact accelerates devitrification, so quartzware should be cleaned and handled with clean gloves before firing.

How does Southeast Quartz verify quality before shipment?

Products undergo helium mass-spectrometry leak detection, pressure resistance testing and purity testing before leaving the factory, together with dimensional inspection against the customer drawing, to ensure stable performance with no impurities and no leakage.

Can you manufacture oversized quartz tubes and non-standard quartz shapes?

Yes. Our workshop combines flame hot-working with CNC cold machining, so we produce oversized fused quartz tubes, bell jars, slotted quartz boats, flanged reactors, irregular shaped quartz sheets and fully customized quartz instruments according to customer equipment parameters.

Where is Southeast Quartz located and which markets do you export to?

Our factory is at No. 1 Qingsheng Rd., Qinghu Industrial Park, Donghai County, Jiangsu, China, within China's best-known crystal and quartz industrial cluster. Besides customers throughout China, we export to Europe, the Americas, Southeast Asia and the Middle East.

High-Quality Customized High-Purity Quartz Products from China - Leading Suppliers and Factory for Semiconductor and Chemical Applications Manufacturers, Products

1 / 5

High-Quality Customized High-Purity Quartz Products from China - Leading Suppliers and Factory for Semiconductor and Chemical Applications Manufacturers, Products

Quartz instruments, crafted from high-purity quartz material, encompass a diverse range of products including quartz tubes, quartz boats, quartz crucibles, quartz reactors, quartz spiral tubes, and quartz reaction vessels. Renowned for their high temperature resistance, corrosion resistance, superior light transmittance, and robust chemical stability, these quartz instruments are indispensable in various industries such as semiconductors, photovoltaics, chemicals, and scientific research. As a leading factory and supplier in China, we provide essential tools for high-temperature processing, precision synthesis, and optical experiments, ensuring process accuracy and reliable equipment performance. Trust our quartz instruments to meet your operational needs with unparalleled quality and durability

Send Inquiry

Product Description

Product Specifications & Technical Data

Property / Parameter	Standard Values
Mechanical Behavior
Density	2.2 g/cm³
Compressive Strength	1100 MPa
Flexural Strength	67 MPa
Poisson's Ratio	0.14 ~ 0.17
Young's Modulus	72000 MPa
Modulus of Rigidity	31000 MPa
Mohs Hardness	5.5 ~ 6.5
Thermal Properties
Transformation Point	1280 °C
Softening Point	1780 °C
Annealing Point	1250 °C
Specific Heat (20 ~ 350 °C)	670 J/kg·°C
Thermal Conductivity (20 °C)	1.4 W/m·°C
Low Thermal Expansion Coefficient	5.5 × 10⁻⁷ cm/cm·°C
Thermal Processing Temperature	1750 ~ 2050 °C
Short-Term Use Temperature	1300 °C
Long-Term Use Temperature	1100 °C
Material & Optical Specifications
Index of Refraction	1.4585
Material Composition	Silicon Dioxide (Natural Quartz)
Color Appearance	Transparent or Colorless
Surface Quality	No Air Bubble, No Line
Strain Point	1270 °C Fused Quartz Glass Brick
PPM Grade	Controlled 10 / 20 / 100 PPM
Shape Geometry	Circle
Available Thickness	2 mm – 20 mm

Frequently Asked Questions

What is the maximum working temperature for this Fused Quartz Glass Brick?

The continuous long-term operational temperature is rated up to 1100°C, while it can safely endure short-term peaks of up to 1300°C without deformation.

How does the low thermal expansion coefficient benefit performance?

With an exceptionally low coefficient of thermal expansion (5.5 × 10⁻⁷ cm/cm·°C), this quartz material exhibits remarkable thermal shock resistance, preventing structural fractures under drastic temperature swings.

What is the purity level and material grade of this quartz glass?

The component is produced from natural high-purity Silicon Dioxide (SiO₂) with tightly monitored contamination levels available in 10, 20, or 100 PPM grades.

What are the primary mechanical strength specifications?

Key mechanical parameters include a compressive strength of 1100 MPa, a flexural rating of 67 MPa, and a hardness score of 5.5 to 6.5 on the Mohs scale, offering outstanding rigidity.

Are there optical flaws such as surface lines or embedded air bubbles?

No, every unit undergoes precision manufacturing to maintain an optically clean, transparent profile free from structural lines, inclusion defects, or air bubbles.

What are the standard configurations and thickness choices?

The standard geometric shape is circular, supported by versatile thickness ranges between 2 mm and 20 mm to meet custom technical environments.

High-Quality Customized High-Purity Quartz Products from China - Leading Suppliers and Factory for Semiconductor and Chemical Applications Manufacturers, Products

Product Description

Related Products

Wholesale Premium High-Purity Quartz Boat for High-Temperature Processes - China Suppliers and Factory Factory, Products

Custom China Suppliers - Oversized Fused Quartz Tubes Factory for High-Temperature Applications Suppliers, Products

Wholesale Customized High-Purity Quartz Products from China Suppliers - Factory Direct for Semiconductor and Optical Applications Supplier, Products

Wholesale Custom Quartz Furnace Tube for Laboratory & Industrial Use | China Suppliers & Factory Direct Supplier, Factory

High-Quality High-Temperature Resistant Quartz Lamp Holder for Industrial Use - China Suppliers & Factory Manufacturer, Manufacturers

Wholesale Premium High-Temperature Quartz Boats from China Suppliers - Fused Silica Factory for Semiconductor Processes Product, Products

Wholesale High-Quality Oversized Fused Quartz Tubes from China Suppliers | Factory for High-Temperature Applications Manufacturers, Supplier

High-Quality High Purity Quartz Rod / Fused Silica Rod for Semiconductor & Laboratory | China Suppliers & Factory Supplier, Factories

Wholesale China Suppliers of Fused Silica Quartz Plates - High Temperature Resistant Quartz Glass Factory Manufacturer, Product

High-Quality Customized High-Purity Quartz Products from China Suppliers - Reliable Quartz Factory for Electronics and Research Manufacturers, Supplier