MATERIALS & COMPONENTS
Quartz materials and custom components
Material selection is part of the specification. We review wavelength range, thermal duty, contamination limits, geometry, and inspection requirements before quotation. The sections below summarize the material families and component formats we work with most often.
Material selection
Quartz glass is not one material.
Natural fused quartz, selected low-OH grades, and synthetic fused silica may look similar, but they are not interchangeable in every application. Material selection should be reviewed together with wavelength range, contamination limits, thermal duty, geometry, and inspection requirements.
| Material family | Why it is considered | Typical fit | Confirm before quotation |
|---|---|---|---|
| Natural fused quartz General-purpose family | Natural quartz feedstock is fused into amorphous SiO2 glass. It is a practical starting point for many custom components where thermal stability, fabrication flexibility, and cost control all matter. | Tubes, rods, flanges, chambers, crucibles, laboratory parts, and general thermal-process components. | Trace-metal limits, bubble and striae criteria, operating conditions, optical requirements, dimensions, and inspection scope. |
| Selected low-OH fused quartz OH-sensitive applications | Selected low-hydroxyl grades are considered when OH content and infrared absorption behavior matter to the application. | IR-sensitive parts, lamp-related components, selected thermal-process applications, and projects with a defined OH requirement. | Target OH level, wavelength range, thermal duty, available stock format, dimensions, and required documentation. |
| Synthetic fused silica Higher-purity selection | Synthetic fused silica is considered for tighter purity, ultraviolet transmission, and contamination-control requirements. The exact grade still depends on the application. | UV-related optical parts, windows, contamination-sensitive laboratory components, and selected semiconductor-related applications. | Transmission band, trace-metal limits, OH level, homogeneity, striae requirements, surface finish, available format, and inspection method. |
Component formats
Common starting points for custom work.
These categories are not a fixed catalog. Dimensions, material grade, process route, and inspection scope are reviewed case by case.
Fused quartz tubes & rods
Transparent and opaque grades for furnace components, diffusion processes, laboratory equipment, and structural quartz parts. Size range, wall thickness, length, and tolerances are reviewed against the drawing.
Optical plates & windows
UV, visible, and IR transmission grades for optical systems, laser paths, and inspection windows. Flatness, surface quality, parallelism, coating requirements, and inspection method are quoted case by case.
Crucibles & boats
Quartz crucibles and custom boat geometries for laboratory, thermal-processing, and specialty applications. Dimensions, material grade, and process conditions should be confirmed before production.
Semiconductor process parts
Diffusion tubes, wafer-handling parts, chamber components, and other drawing-based quartz parts for process equipment. Material purity, dimensional control, and inspection requirements are reviewed together.
CNC-machined custom parts
Precision-machined quartz components made to drawing. Suitable geometries can typically be controlled to ±0.05 mm, with tighter requirements reviewed individually against size, shape, and inspection method.
Quartz burners & fused assemblies
Hydrogen–oxygen burners, connectors, flanges, and multi-component quartz assemblies joined by fusion welding. For optical-fiber, thermal-processing, and other process applications where geometry and clean workmanship matter.
Do not see exactly what you need?
That is normal. Most of our work is custom. Send a drawing, a sample photo, or a description of the problem you need to solve. We will tell you plainly whether it is something we can do well.