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

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

Our high-quality quartz lamp holders, manufactured in China, are composed of premium quartz glass known for its exceptional resistance to high temperatures, outstanding insulation, and superior light transmittance. These lamp holders are designed to work seamlessly with various light sources, including halogen lamps and infrared heating lamps. Capable of withstanding intense thermal radiation and electrical surges, they serve as essential components in lighting and heating devices, ensuring reliable operation of the light source.

Our quartz inner and outer lamp caps are critical end components for a variety of quartz lamps, such as UV lamps, infrared lamps, and halogen lamps. These caps are vital for establishing electrical connections, providing sealing, and offering structural support.

The inner cap connects directly to the internal electrode or light-emitting structure, while the outer cap serves as the external component for electrical connection and secure mounting.

As a leading supplier and factory in the industry, we take pride in offering durable and efficient quartz lamp holders and caps that meet the highest standards.

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Product Description

Product Specifications

Mechanical & Physical Properties

Mechanical Behavior	Standard Values
Density	2.2 g/cm³
Compressive Strength	1100 MPa
Flexural Strength	67 MPa
Poisson's Ratio	0.14 ~ 0.17
Young's Modulus	72,000 MPa
Modulus of Rigidity	31,000 MPa
Mohs Hardness	5.5 ~ 6.5
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
Index of Refraction	1.4585
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	Silicon Dioxide (Natural Quartz)
Color	Transparent or Colorless
Surface	No Air Bubble, No Line
Strain	1270°C Fused Quartz Glass Brick
PPM Grade	Controlled 10 / 20 / 100 PPM
Shape	Circle
Thickness	2 mm – 20 mm

Frequently Asked Questions

Q What material is this quartz glass made from?

This quartz glass is made from Silicon Dioxide (Natural Quartz), offering a transparent or colorless appearance with no air bubbles or lines on the surface, ensuring excellent optical clarity.

Q What is the maximum operating temperature for long-term use?

For long-term continuous use, the maximum recommended temperature is 1100 °C. For short-term applications, the material can withstand up to 1300 °C, while thermal processing is performed between 1750 °C and 2050 °C.

Q What thickness options are available for the quartz glass?

The quartz glass is available in thicknesses ranging from 2 mm to 20 mm, with a circular shape to suit various industrial and optical applications.

Q What is the thermal expansion coefficient of this quartz glass?

The quartz glass has an exceptionally low thermal expansion coefficient of 5.5 × 10⁻⁷ cm/cm·°C, making it highly resistant to thermal shock and ideal for high-temperature environments where dimensional stability is critical.

Q What PPM grades are available for purity control?

The quartz glass is available in controlled purity levels of 10 PPM, 20 PPM, and 100 PPM, allowing customers to select the appropriate grade based on their specific application requirements, such as semiconductor manufacturing or optical systems.

Q How does the compressive strength of quartz glass compare to its flexural strength?

Quartz glass exhibits a very high compressive strength of 1100 MPa, making it extremely resistant to compressive forces. Its flexural (bending) strength is 67 MPa, which is typical for glass materials. For applications involving bending or tensile stresses, appropriate design considerations should be taken into account.

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

Product Description

Product Specifications

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