Sapphire Discs
A round sapphire substrate blank, sourced as a raw or lightly-finished disc rather than a fully specified optical window.
Share requirements, quantities and a drawing if available. Specifications and supply terms require confirmation.
Overview
Sapphire discs are round sapphire blanks sold primarily as substrate material — buyers in this category are typically sourcing raw or minimally-finished round sapphire for further processing, optical-blank stock, or technical/materials-science use, distinct from a buyer sourcing a fully specified, ready-to-install optical window from the Sapphire Optical Windows page. Procurement review should center on using a round sapphire blank or finished disc where diameter, edge and face function drive processing.
Key Selection Points
- Same extremely hard, chemically stable sapphire material as Dongqiao's other sapphire pages
- Sourced as round substrate/blank stock rather than a finished, application-specific optical component
- Useful starting point for buyers who will further process or finish the material themselves
Applications
Sapphire discs are sourced as substrate/blank material for further optical finishing, technical and materials-science applications, and as a starting point for custom-shaped sapphire components.
Wavelength Range & Material Guide
This module connects wavelength needs with material choice while keeping reference properties separate from configuration-specific performance. For Sapphire Discs, the module focuses on using a round sapphire blank or finished disc where diameter, edge and face function drive processing.
- Separate general material behavior from the exact grade and coating offered for the RFQ.
- Review environmental, thermal and handling constraints alongside the wavelength band.
- Confirm any numerical transmission range for the selected material, coating and configuration.
- Product-specific review: connect disc diameter and thickness with optical versus mechanical face and document the trade-off against a rectangular sapphire plate.
Prepare a product-specific enquiry
Include the requirements you know and identify any points that need confirmation.
| RFQ input | What to provide |
|---|---|
| Input 1 | Procurement objective for Sapphire Discs: using a round sapphire blank or finished disc where diameter, edge and face function drive processing. |
| Input 2 | Lock disc diameter and thickness before requesting a decision on sapphire orientation or grade. |
| Input 3 | Describe optical versus mechanical face and the mating or operating condition for edge, coating and mount. |
| Input 4 | Do not omit this product-specific point: provide face-function callouts, edge profile and whether the disc is a finished optic or downstream blank. |
| Input 5 | Include quantity and project phase; MOQ, stock and lead time are confirmed during quotation. |
| Input 6 | Identify drawing revision, critical notes and evidence needed at acceptance. |
Frequently Asked Questions
Is a sapphire disc the same as a sapphire window?
A sapphire disc is generally sold as round substrate/blank stock, while a sapphire window (see Sapphire Optical Windows) is a fully specified, ready-to-install optical component. Tell us your intended use and we will confirm which fits.
Can I order a custom diameter or thickness?
Share your requirement through the RFQ form and we will confirm feasibility.
Which specification should be fixed first for Sapphire Discs?
Begin with disc diameter and thickness. It determines how sapphire orientation or grade and optical versus mechanical face should be evaluated before the mechanical details are finalized.
When is Sapphire Discs a better fit than a rectangular sapphire plate?
Choose between them by testing the requirement for using a round sapphire blank or finished disc where diameter, edge and face function drive processing. If that requirement is absent, the comparison product may provide a simpler procurement path.
What should an RFQ for Sapphire Discs include?
Provide face-function callouts, edge profile and whether the disc is a finished optic or downstream blank. Also include quantity, drawing revision and the required acceptance evidence. Final availability is confirmed during quotation.
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A product name, a specification or an application is a starting point.