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Material Category

Borosilicate Glass Materials

Borosilicate material systems for precision components requiring documented thermal expansion, optical, chemical and supply-form data.

Borosilicate material systems for precision components requiring documented thermal expansion, optical, chemical and supply-form data.

How to Read the Material Data

Compare the optical, thermal, chemical and supply-form characteristics of each material family, then match the grade to the finished component and operating environment.

Information Required for Material Review

  • Named grade or optical, thermal and chemical requirements.
  • Required form, thickness, dimensions and finished geometry.
  • Application environment and downstream process conditions.
  • Quantity, inspection records, cleaning and packaging requirements.

How to Choose

Choose the Material from Performance, Grade and Finished-Part Requirements

The category owns broad material-family and comparison terms. Named grades and distinct material families keep their own detail pages.

Start with the operating requirement

Use wavelength, temperature, thermal cycling, chemicals, dimensional stability and mechanical exposure to narrow the material family.

Compare named grades separately

Keep manufacturer, grade, test condition and source attached to each value instead of mixing family-level and grade-level data.

Confirm the starting form

Check sheet, plate, wafer, block, tube or rod availability together with thickness and usable blank size before finalizing the drawing.

Connect material to the finished part

The final selection must also support cutting, machining, polishing, cleaning, coating, inspection and packaging requirements.

Supply Forms

Confirm the Starting Form and Thickness

Available form and usable size must be confirmed for the named material and order.

0.70-25.40 mm standard thicknessessheets up to 2300 x 1700 mm depending on thicknessCut blanksWindows and platesDiscs, rings or wafersDrawing-based finished components0.2-1.4 mm wafer rangestandard 0.5, 0.7, 0.85, 1.1 and 1.4 mmpanels up to 300 x 300 mmRecord thickness and size by named manufacturer and grade

Application Direction

Match the Material to the Service Environment

The application narrows optical, thermal, chemical, surface and process requirements.

Heat-resistant observation windowsIndustrial sight and gauge glassLaboratory and analytical componentsSensor and semiconductor substratesHeater and equipment coversDiscs, rings, tubes and custom parts

Material Comparison

Compare the Named Materials and Material Families

Exact values remain attached to the named grade, manufacturer, unit, test condition and source. Family pages explain selection direction without mixing grade data.

MaterialMaterial typeOptical propertiesThermal propertiesAvailable forms
SCHOTT BOROFLOAT 33 Glass BOROFLOAT 33: Borosilicate float glass UV-to-IR curves published; visible transmission typically >90% at suitable thickness 3.25 x 10^-6/K, 20-300 C 0.70-25.40 mm standard thicknesses, sheets up to 2300 x 1700 mm depending on thickness, Cut blanks
Corning PYREX SG3.3 Glass PYREX SG3.3: Borosilicate glass matched to silicon >90% from 400-800 nm 3.3 x 10^-6/K, room temperature to 300 C 0.2-1.4 mm wafer range; standard 0.5, 0.7, 0.85, 1.1 and 1.4 mm; panels up to 300 x 300 mm
Domestic Borosilicate 3.3 Glass Domestic Borosilicate 3.3: Standards-defined material family; Flat Borosilicate 3.3 Float Sheet: Domestic borosilicate 3.3 sheet; High Borosilicate Glass 3.3: Domestic borosilicate 3.3 sheet Manufacturer reports high visible transmission 3.3 x 10^-6/K class; verify named grade Record thickness and size by named manufacturer and grade, Flat sheet, dimensions per manufacturer datasheet
Reference boundary: Published values remain attached to the named grade, source and test condition. ANTGLASS processing is specified separately by the finished-part drawing.

Technical Guides

Continue to Material Selection and Design Guidance

Use the linked technical pages to compare materials, prepare drawings and define tolerances, inspection and RFQ information.

Frequently Asked Questions

Selection and RFQ Questions for This Category

Use these answers to prepare the material, component, drawing and inspection requirements before quotation.

What is borosilicate glass?

Borosilicate glass combines low thermal expansion, strong resistance to thermal shock and useful chemical durability. ANTGLASS supplies and processes flat borosilicate sheet, wafer, tubing and drawing-based blanks into sight glass, windows, discs, rings, substrates and custom technical components.

Which grades are included in Borosilicate Glass Materials?

The category includes SCHOTT BOROFLOAT 33 Glass, Corning PYREX SG3.3 Glass, Domestic Borosilicate 3.3 Glass. Each grade has a separate page so that values and sources are not mixed.

Which properties matter when selecting Borosilicate Glass Materials?

Review wavelength or transmission, refractive properties where relevant, CTE, temperature, chemical durability, hardness, thickness, starting form, geometry and finished-surface requirements.

What products can ANTGLASS manufacture from Borosilicate Glass Materials?

ANTGLASS supplies and processes these materials into Industrial Sight & Gauge Glass, Precision Optical Glass Windows, Glass Discs, Rings & Spacers, Precision Glass Tubes & Cylindrical Components, Glass Substrates, Custom-Shaped Precision Glass Parts and other drawing-based components.

What should a Borosilicate Glass Materials RFQ include?

Provide the preferred grade or target properties, drawing, dimensions, functional surfaces, environment, quantity, inspection, cleaning and packaging requirements.

Drawing / Material Review

Select the Named Grade Before Confirming the Finished Part

Send the preferred grade, optical/thermal/chemical requirements, stock form, dimensions, thickness, machining features, quantity and inspection needs. Official properties describe the named material; ANTGLASS stock, authorization and finished-part capability require separate confirmation.