Characterised mainly by low thermal expansion, thermal shock resistance and good chemical stability, it can be used for viewing windows, lighting, laboratory equipment and custom glass components.
"High borosilicate glass" is a material category rather than a single grade; different formulations and manufacturing methods give different parameters, and actual performance is governed by the supplied material.
Suited to parts that require dimensional stability and thermal shock resistance under temperature variation.
Usable in many laboratory and industrial media; specific compatibility must be confirmed against the conditions.
We can evaluate sheet, window, disc, hole and slot, custom profile and surface processing.
High borosilicate glass is commonly used in thermal cycling, laboratory instruments, lighting and industrial viewing. Project selection should consider operating temperature, instantaneous temperature difference, dimensions and thickness, support method, media and mechanical load.
Within the same material category there may be different boron contents, thermal expansions and supply states. We confirm the actual material, sheet dimensions, process route and inspection method against the drawing and operating conditions, and never substitute the category name for a specific specification.
| Material type | Borosilicate glass; exact composition and supplied grade to be confirmed |
|---|---|
| Coefficient of thermal expansion (CTE) | Confirmed against the actual supplied material and temperature range |
| Density / elastic modulus | Confirmed against the data sheet of the actual supplied grade |
| Softening point / annealing point / strain point | Varies with formulation and manufacturing method; to be confirmed |
| Thermal shock capability | Depends on material, dimensions, thickness, edges and mounting structure |
| Optical transmission | Depends on composition, thickness, surface and target band |
| Water / acid / alkali resistance | Confirmed against medium, concentration, temperature, duration and standard |
| Surface and geometric quality | Dimensions, TTV, flatness, appearance and edges confirmed against the drawing |
Supply dimensions, thickness and sheet state depend on the specific material, stock and processing allowance.
Specific grade, origin, batch and data sheet are stated in the quotation
Outline, thickness, tolerances, flatness, TTV, holes and slots and chamfers confirmed against the drawing
Sheet, cutting, lapping, polishing, cleaning and protective packaging can be combined per project
Formal supply is governed by material documents, drawings, sample validation and specifications confirmed by both parties.
Processing focuses on thermal stress, edge defects, hole and slot geometry, dimensional accumulation and surface protection.
Precision glass processing services. Precision glass grinding. For borosilicate glass, aluminosilicate glass, …
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We plan the glass cutting route around dimensions, datums, edge condition and downstream operations, reviewing outline, cutting allowance and delivery requirements against the drawing.
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Grinding and polishing operations are arranged around thickness, parallelism, flatness and surface requirements, with the process route and inspection method confirmed per project.
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We control particles, residues and water marks after processing, and confirm cleaning, handling and packaging requirements against coating, bonding or assembly needs.
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Glass dimensions, edges and surfaces are inspected against the drawing and the agreed acceptance items, with inspection methods, sampling scope and delivery records defined.
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We address sharp edges and local edge defects after cutting, confirming edge grinding and chamfer styles and edge acceptance criteria against assembly requirements.
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For micro-holes, hole arrays and local openings in glass, we evaluate laser drilling options based on material, thickness and hole geometry.
View ProcessingFinal suitability must be confirmed against the specific supplied grade, structure, temperature, media and validation results.
No. This page describes a material category; the specific supplied grade, origin and parameters are confirmed in the project quotation.
A permitted temperature cannot be given without the specific material, dimensions, thickness, edges, temperature difference and mounting method; project validation is required.
This depends on material source, stock and processing allowance; send us a drawing and we can give manufacturability feedback.
We can evaluate this; capability depends on thickness, structure, tolerances, surface and chipping requirements.
Please provide operating conditions, dimensions, thickness, quantity, tolerances, holes and slots, edges, surface, media and lead time.
We first confirm the available material, then write cutting, holes and slots, edges, surface and inspection into the processing plan.