High-Quality Unprocessed 3.3 Borosilicate Glass Tubing - ISO 3585 Standard, Thermal Shock Resistant & Chemical Durable Glass Tubes for Labware, Lighting, and Industrial Use
The Gold Standard of Technical Glass: Borosilicate 3.3
- Superior Thermal Shock Resistance: With a linear expansion coefficient of 3.3 x 10⁻⁶ K⁻¹, these tubes can handle rapid temperature changes that would shatter standard soda-lime glass.
- Exceptional Chemical Durability: Highly resistant to water, neutral and acid solutions, concentrated acids, and organic substances. It maintains purity in pharmaceutical and laboratory applications.
- High Optical Clarity: Excellent light transmission across a wide spectrum, ideal for sight glasses, lighting covers, and solar thermal collectors.
- Excellent Workability: The preferred choice for professional glass blowers due to its stable viscosity-temperature relationship, allowing for precise shaping and sealing.
- Standard Compliance: Fully compliant with ISO 3585, ASTM E438 Type I, and DIN 12116 standards.
Available Dimensions & Customization
- Outer Diameter (OD): From 3mm to 350mm.
- Wall Thickness (WT): From 0.8mm to 10.0mm.
- Standard Length: 1200mm, 1500mm, or 2000mm (Custom cutting available).
- End Finish: Raw cut, fire-polished, or ground ends.
Industrial & Scientific Applications
- Laboratory & Research: Manufacturing of beakers, flasks, test tubes, and complex distillation setups.
- Renewable Energy: Outer tubes for solar thermal vacuum collectors.
- Industrial Engineering: Sight glasses for boilers, flow meters, and chemical pipelines.
- Lighting & Electronics: High-power LED covers, flash tubes, and decorative lighting.
- Pharmaceuticals: Raw material for ampoules, vials, and glass syringes.
Quality Control & Packaging
Frequently Asked Questions (FAQ)
A: 3.3 borosilicate glass has a lower thermal expansion coefficient (3.3 vs 5.0), making it more resistant to thermal shock and better suited for direct flame work and laboratory use.
A: While borosilicate glass is strong, its pressure rating depends on the wall thickness and diameter. Please consult our technical team for specific pressure calculations based on your design.
A: Yes. Our glass meets the requirements of the European and US Pharmacopoeia for Type I neutral glass. We can provide COA (Certificate of Analysis) upon request.
Company Introduction
Founded in 2012, Fuxin Glass is a leading manufacturer specializing in the research, development, production, and export of cover glass, headquartered in Dongguan, China, near the ports of Shenzhen and Guangzhou.
With 13 years of industry experience, Fuxin serves customers in over 80 countries worldwide. With ISO/RoHS/JIS Z certifications, Fuxin Glass is dedicated to providing high-quality glass solutions for electronic displays and smart devices. Its products are widely used in interactive display, automotive electronics, industrial equipment, medical devices, home appliances, and smart devices. The products feature high light transmittance (over 95%), high hardness (Mohs 6), and excellent scratch and impact resistance. The 21,000-square-meter factory is equipped with four fully automated production lines, with a monthly production capacity of 300,000 pcs. We support small-batch trial production and large-scale delivery, and provide one-step technical support and after-sales service. Multi-dimensional customization is supported as well: including but not limited to mold design (samples can be produced in as fast as 7 days), special optical processing (AR/AF/AG/AM combination), explosion-proof structure design (multi-layer composite structure), color customization (7 colors are optional), silk screen logo, etc., to meet the personalized needs of customers. Our products have successfully entered mainstream markets such as North America, Japan, South Korea, India, and Europe, and widely serve interactive ( such us all in one machine, IFPD, smart white board ), automotive central control screens, industrial HMI, smart home panels and other fields.
We always adhere to the principle of "integrity, quality and win-win" and are willing to establish good long-term cooperative relationships with customers all over the world!
Partial Sample Display
Factory Overview
Inspection Progress
Certification
Package
Delivery & Lead Time
| Original Country | China |
| FOB Port | Shenzhen or Hongkong |
| HS Code | 70023900 |
| Lead Time | Sample within 7 days, bulk order 15~20 days |
| Delivery | By sea / DHL / Fedex / UPS |
Payment Details
1. Soda-lime Glass (Ordinary Flat Glass)
- Composition: Mainly composed of silicon dioxide (SiO₂, approximately 70%), sodium oxide (Na₂O), and calcium oxide (CaO).
- Characteristics: Easy to produce, low cost, but poor thermal stability and brittle.
- Applications: The most common type of glass, used for doors, windows, bottles, jars, and everyday utensils.
2. Borosilicate Glass (Heat-Resistant Glass)
- Composition: Based on soda-lime glass, boron oxide (B₂O₃) is added.
- Characteristics: Low coefficient of thermal expansion, high temperature resistance, resistance to rapid temperature changes (not easily cracked by sudden heating and cooling), good chemical stability.
- Applications: Laboratory instruments (such as beakers and test tubes), heat-resistant tableware (such as baking pans and glass pots), high-end flashlight lenses, etc. Well-known brands include Pyrex.
3. Aluminosilicate Glass
- Composition: Contains a large amount of aluminum oxide (Al₂O₃) and silicon dioxide (SiO₂).
- Characteristics: High hardness, scratch resistance, high mechanical strength, superior performance compared to borosilicate glass.
- Applications: Cover glass for high-end mobile phones/tablets, aviation glass, etc. Well-known brands include Corning Gorilla Glass.
4. Quartz Glass
- Composition: Silicon dioxide (SiO₂) content is above 99%.
- Characteristics: Excellent heat resistance (softening point up to 1700℃), wide light transmission spectrum (from ultraviolet to infrared), high purity, and excellent chemical stability. However, it is expensive.
- Applications: Semiconductor industry, optical devices, observation windows in high-temperature furnaces, ultraviolet lamps, etc.
To get an accurate quotation, please provide (if available):
- Product dimensions & glass thickness
- Application / usage
- Edge grinding type
- Surface treatment (coating - AG/AR/AF/AM or overlay, printing, etc.)
- Packaging requirements
- Quantity or annual usage
- Required delivery time
- Drilling or special hole requirements
- Drawings or photos
If you don't have all the details yet: just provide the information you have. Our team can discuss your requirements and help you determine specifications or suggest suitable options.
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1) Are you a trading company or manufacturer?
1. Leading glass deep processing factory
2. 13 years of experience
3. OEM/ODM expertise -
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2) How to order?
1. Your detailed requirements: drawings/quantity/or your special requirements.
2. Let's get to know each other better: We can provide your requirements.
3. Email us your formal order, payment.
4. We will incorporate the order into our mass production plan and produce according to the approved sample.
5. Packing & shipping -
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3) Do you provide samples for testing?
We can provide free samples, but the shipping cost will be borne by the customer.
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4) What is your minimum order quantity?
A: 200 pieces.
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5) How long does a sample order take? How about a bulk order?
Sample order: Usually within a week.
Bulk order: Usually takes 15~20 days depending on quantity and design. -
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6) What packaging do the products use?
Plastic wrap + pearl cotton + kraft paper + cartoon box + wooden crate.
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7) How do you ship the goods, and how long does it take to arrive?
We usually ship by sea / air freight/ International Express, and the arrival time depends on the distance.
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8) What are your payment terms?
A: T/T 100% in advance, or other payment methods.
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9) Do you provide OEM/ODM services?
Yes, we can customize.
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10) Do your products have certificates?
Yes, we have ISO9001/REACH/RoSH/GS/JIS Z certifications.