BOROSILICATE 3.3 / CHEMICAL & THERMAL STABILITY

Borosilicate Glass Balls

Thermally stable, chemically resistant glass spheres for laboratory instruments, process valves, metering and precision fluid-control systems.

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Borosilicate Glass Balls supplied by SDBALLS — PRODUCT REFERENCE / FINAL SPECIFICATION BY QUOTATION

PRODUCT OVERVIEW

What are borosilicate glass balls?

Borosilicate glass balls are precision spheres made from low-expansion glass containing boron oxide. Compared with ordinary soda lime glass, they provide better thermal-shock behavior, chemical stability and dimensional consistency across temperature changes.

They are selected for laboratory, analytical and process equipment where visibility and electrical insulation are required together with improved heat and chemical performance. Exact glass composition and exposure conditions still require confirmation.

TECHNICAL SPECIFICATIONS

Start with measurable requirements.

Values below are product-family references. The quotation, drawing, agreed standard and inspection plan control the final supply specification.

Technical itemReference specification

MaterialBorosilicate glass, including 3.3-type compositions by project

Diameter Range2–100 mm reference range

Precision GradeG20 / G40 / G100 / G200 / G500 / G1000 reference grades

ToleranceControlled by the agreed precision grade, drawing or purchase specification

HardnessApprox. Mohs 6

DensityApprox. 2.2–2.3 g/cm³

Surface FinishPrecision ground and polished or visual-grade finish

Roundness / SphericityControlled according to the agreed precision grade and inspection method

Temperature ResistanceApplication, load, atmosphere and material-grade dependent

Chemical ResistanceStrong general chemical stability; hydrofluoric acid remains incompatible

PackagingBulk, small-quantity, container, bag, carton, export pallet or customized packing

Thermal expansionLow-expansion glass; exact coefficient depends on composition

Electrical behaviorInsulating and non-magnetic

PRODUCT SELECTION GUIDANCE

Compare materials before substituting.

Material selection affects load, wear, corrosion, temperature, precision, service life and total program cost.

Material optionPrimary advantageLimitationBest fit

Borosilicate glassLow expansion, visible and chemically stableLower hardness and impact toughness than advanced ceramicsLaboratory, analytical and process equipment

Soda lime glassLower cost and broad availabilityLower thermal-shock performanceGeneral flow indication and mixing

Fused silicaVery low thermal expansion and optical capabilityHigher cost and specialized availabilityExtreme optical or thermal work

Zirconia ceramicHigh toughness, wear and chemical resistanceOpaque and much denserWear-intensive valves and pumps

KEY PERFORMANCE FEATURES

Performance that purchasing teams can verify.

Thermal-shock stability

Low expansion reduces dimensional change and thermal stress compared with soda lime glass.

Chemical compatibility

Useful across many laboratory and process fluids after concentration and temperature review.

Visible, non-magnetic operation

Transparent options support observation without electrical or magnetic interference.

Precision supply

Controlled diameter, grade and surface options support analytical and valve assemblies.

TYPICAL APPLICATIONS

Specify the work the ball must perform.

Application names are starting points—not approval of universal suitability. Share the real medium, load, speed, pressure, temperature, life target and compliance needs.

Laboratory instruments

Analytical equipment, sample handling, mixing and visible control elements.

Chemical valves & pumps

Light-duty sealing and flow elements for compatible media.

Metering & instrumentation

Flow meters, indicators and precision fluid-control mechanisms.

Thermal process systems

Components exposed to wider temperature change than ordinary glass.

Typical applications for Borosilicate Glass Balls — REPRESENTATIVE APPLICATION ENVIRONMENTS

QUALITY & DOCUMENTATION

Build the evidence into the purchase order.

Document requirements should be defined before quotation so the inspection method, sampling level, traceability and external testing can be planned correctly.

Material identity or alloy / ceramic grade verified against the agreed purchase specification
Diameter, tolerance and geometry inspected using the method appropriate to the ordered precision level
Hardness, density, wall thickness or coating hardness tested when applicable to the product
Surface condition, finish and visual limits checked against approved samples or drawings
Roundness / sphericity or roller geometry inspected when specified
Lot identification and batch traceability maintained through controlled records
Material certificates and inspection reports available when agreed before quotation
Third-party testing, compliance documents and customer inspection plans supported by agreement

PACKAGING OPTIONS

Protect precision through delivery.

Final packing depends on material, diameter, surface sensitivity, order weight, storage time and destination.

Protective vials & trays

Separated or cushioned packing for precision, optical and sample quantities.

Small sealed bags

Size-separated bags with lot identification for laboratory and assembly trials.

Cartons & rigid containers

Movement-controlled inner packing for regular export orders.

Bulk industrial packing

Pails, drums or palletized cartons selected around ball size, weight and breakage risk.

Supported formats: bulk packaging · small-quantity packaging · plastic containers · bags · cartons · export pallets · customized packaging.

SMALL QUANTITY & SAMPLE ORDERS

Validate before you scale.

SDBALLS Industry Corp. supports North American customers with sample quantities, prototype requirements, testing programs and specialty ball inquiries.

For sample selection, specify diameter, grade, glass composition if controlled, transparency, medium, concentration, temperature cycle and required certificates.

PrototypeTestingRepairR&DSmall batch production

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PRODUCT FAQ

Answers for engineering and purchasing teams.

How is borosilicate different from soda lime glass?

Borosilicate generally has lower thermal expansion and better thermal-shock and chemical performance, while soda lime is usually more economical.

What sizes and grades are available?

The reference range is 2–100 mm with G20 through G1000 options, subject to diameter, quantity and visual requirements.

Is borosilicate suitable for acids and alkalis?

It performs well in many chemical environments, but exact fluid, concentration, temperature and exposure time must be reviewed. Hydrofluoric acid attacks glass.

Can you supply optical-quality clear balls?

Selected transparency, inclusions, bubbles and surface quality can be discussed against an approved sample or documented acceptance criteria.

Can you provide material certificates and inspection reports?

Yes. State the required certificate, inspection method, sampling plan and report format before quotation so documentation can be included in the supply plan.

Do you support samples and small-quantity orders?

Yes. SDBALLS Industry Corp. supports North American prototype, qualification, repair, R&D and small-batch requirements, subject to material, size and production availability.

CONTACT SDBALLS U.S.

Bring us the application and requirement.

Include product, material, size or shot size, grade, hardness, finish, quantity, packaging, application and required documentation for a faster quotation.

SDBALLS Industry Corp.Email: info@sdballs.usWhatsApp: +1 424 351 5470Website: www.sdballs.usNorth American Business Support