Wholesale Bulk Durable Lab Clear Borosilicate 3.3 Glass Tube Neutral Glass Test Tube

• Customization: Available
• Color: Transparent
• Certification: ISO9001
• Cup Accessories: without Handle
• Application: Indutrial
• Type: Glass Tube
• Glass Type: Hollow Glass
• Material: Glass
• Recycled: Recycled
• Flexibility: Hard
• Logo Printing: with or Without Logo
• Technics: Fused Glass
• Shape: Round
• Processing: Cutting, Fire Polishing, Sealing
• Workable: Blown and Pressed
• Transport Package: Carton
• Specification: custom size
• Trademark: JSV
• Origin: China
• HS Code: 7002320000
• Production Capacity: 20 Tons / Day

Product Description

Borosilicate Glass 3.3 - Engineered for Excellence
Our borosilicate glass 3.3 tube is manufactured to meet the most demanding requirements of laboratory, industrial,
and technical applications. With a low coefficient of thermal expansion, this material exhibits exceptional resistance to
thermal shock and chemical corrosion, making it the ideal choice for applications where reliability and performance are
critical.

Product Name	Borosilicate 3.3 glass tube
Size	Outside diameter from 3mm to 400mm
Processing	Cutting, grinding, polishing, fire polishing, annealing, drilling, sandblasting, coating, sealing, joining, bending, blowing, pressing
Shape	Round, triangle, hexagonal, inner profile, half-cylinder, elliptical, customized shape
Packing	Carton, pallet, wooden crate

The borosilicate 3.3 glass tube is available in different shapes, diameters and lengths. The shapes are available
in round shape, triangle shape, hexgonal shape, inner profile shape and half-cylinder shape, the diameters range
from 3mm to 400mm with different wall thickness and length.
We can also manuafcture custom shapes and sizes.

Key Material Advantages:
• 500°C thermal shock resistance
• Class HGB 1 hydrolytic resistance
• High transparency & optical clarity
• Excellent mechanical strength
• Custom dimensions & processing

Physical Data:

1	Coefficient of mean linear thermal expansion (20ºC~310ºC)	3.3	10^-^6K^-^1
2	Density	2.23	g/cm^3
3	Transformation temperature	525	°C
4	Softening Point	820	°C
5	Working Point	1250	°C

Chemical Resistance (ISO Standards):
• Hydrolytic Class: HGB 1 (highly resistant)
• Acid Class: 1 (highly resistant)
• Alkali Class: 2 (moderately resistant)

APPLICATION SOLUTIONS

1. Laboratory & Scientific Equipment
• Glassware components for chemical reactors
• Sight glasses for pressure vessels
• Condenser tubes and distillation columns
• Laboratory instrumentation windows
2. Lighting Industry
• LED and halogen lamp envelopes
• High-temperature lighting covers
• UV lamp applications
• Optical lighting components
3. Industrial Applications
• Process observation windows
• Level gauge tubes
• Heat exchanger sight ports
• Semiconductor processing equipment
4. Custom OEM Solutions
We work with engineers and designers to develop custom glass components for specialized applications.
Our technical team can assist with:
• Design optimization for glass components
• Fabrication feasibility analysis
• Prototype development
• Production scaling

CUSTOMIZATION CAPABILITIES

We Provide Complete Fabrication Services:
Cutting & Edging:
• Precision cutting to specified lengths
• Flame polishing for smooth edges
• Bevelled edges for easier installation
• CNC cutting for complex shapes
Secondary Processing:
• End forming and flanging
• Drilling and perforation
• Surface treatments
• Graduation marking

PACKAGING & LOGISTICS

Secure Packaging for Global Shipping:
• Reinforced export cartons
• Wooden crates/wooden pallet

Global Logistics Support:
• FOB, CIF, DAP terms available
• Documentation assistance
• Door-to-door delivery

Lead Time:
• Standard items: 7-20 days
• Custom fabrication: 15-25 days
• Rush service available

WHY CHOOSE US?
• Specializing in technical glass
• In-house engineering team
• Application-specific knowledge
• Continuous R&D investment
• Technical consultation available
• After-sales technical support

FAQ:

1. What is the MOQ (Minimum Order Quantity)?

Our standard MOQ is flexible, we offer flexible options for sample orders and bulk orders. Contact us for customized solutions.

2. Do you provide samples?

Yes, we offer samples.

3. What are your payment terms?

T/T (Bank Transfer), PayPal , L/C , D/P, etc..

4. What is the production lead time?

Typically 7-15 days after order confirmation (varies by quantity). Expedited options are available.

5. What shipping methods do you offer?

 By sea, air, or express (DHL/FedEx/UPS). We offer door-to-door service.

6. Can you customize products (OEM/ODM)?

Yes, we support: Logo printing, Packaging customization, Design adjustments
Send your specifications for a quote.

Company Profile
We are specializing in the production and processing of high-temperature and heat-resistant glass. We provide reliable
glass solutions for global clients in high-temperature and explosion-proof scenarios, with a focus on quality and customization.
Our main high-temperature resistant glass products include: borosilicate 3.3 glass tube, borosilicate 3.3 floated flat glass sheet and glass ceramic.
We have strong deep processing capabilities, offering customized services to meet clients' specific needs.
Our products are widely used in:
• Laboratory Instruments,
• Optical Glass Components
• Industrial Sight Glass
• High-Temperature Observation Components
• General Industrial Production
• Lighting Fixtures
• Fireplaces, Induction Cooktops
Adhering to "quality first, customer-oriented", we provide professional consultation, high-quality products and efficient after-sales service for standard and customized needs.
Contact us to discuss your high-temperature resistant glass requirements and achieve win-win cooperation.