Description
Square, hexagonal and shaped quartz rods use flat-faceted cross-sections instead of the circular section of standard fused quartz rod. This page covers straight profile stock where the purchasing dimensions are the side length, across-flats size or other defined cross-section dimensions together with finished length.
Half-round profiles are covered separately because they are defined by width, height and radius. Bent, redrawn and thin rods are also separated because their primary manufacturing parameter is the formed or reduced geometry rather than a straight faceted section.
Dimensions
| Profile | Cross-Section Range | Length | Tolerance |
|---|---|---|---|
| Square | Side 1–100 mm | 10–1200 mm standard; longer on request | ±0.05–0.10 mm |
| Hexagonal | Across-flats 1–100 mm | 10–1200 mm standard; longer on request | ±0.05–0.10 mm |
| Other Custom Profile | Cross-section defined by drawing | Length defined by part geometry | Confirmed against profile geometry |
Material
| Property | Specification |
|---|---|
| Standard Material | Clear fused quartz |
| Optional Material | Opaque quartz where the application requires a non-transparent quartz grade |
| Softening Point | ~1730°C |
| Continuous Working Temperature | 1100–1250°C |
| Short-Term Temperature | Up to 1450°C, subject to profile geometry and operating condition |
Quartz grade selection can follow the same fused-quartz material family used for other rod and tube stock. Where a specific optical, OH or impurity requirement applies, the grade should be stated separately from the profile dimensions.
Square Rod
Square quartz rod provides flat sides on all four faces. The section sits flush against flat mounting surfaces, does not roll during handling, and provides four repeatable datum faces for fixturing or secondary machining.
| Design Feature | Why It Is Used |
|---|---|
| Four flat faces | Stable mounting against a flat surface |
| Non-rolling profile | More predictable handling and fixture location than round rod |
| Defined corners | Useful where orientation of the rod relative to a fixture matters |
Hexagonal Rod
Hexagonal quartz rod adds more facets and corners than round or square stock. The profile gives positive hand or fixture engagement while retaining a relatively compact section around the center axis.
It is commonly selected where better grip is useful during handling, mixing or stirring, and can also be used as straight profile stock before further end forming or machining.
Other Shaped Quartz Rods
Custom straight profiles can be produced where the section cannot be represented by standard round, half-round, square or hexagonal stock. Typical quotation data includes the complete profile outline, overall width and height, individual facet dimensions, corner radii and finished length.
This page is for straight profile stock. For profiles that are subsequently bent, thermally reshaped or redrawn to a reduced section, see Bent / Redrawn / Thin Quartz Rods.
Surface & End Finish
| Feature | Options |
|---|---|
| Long Faces | As-cut / ground / polished |
| Ends | Cut / ground square / polished / chamfered |
| Corners | Sharp as-produced / edge-broken / radius specified with the profile |
| Secondary Machining | Cutting, grinding, drilling or further profile machining where required |
What to Specify
| Rod Type | Required Quotation Input |
|---|---|
| Square Rod | Side dimension, length, tolerance and surface / end finish |
| Hexagonal Rod | Across-flats dimension, length, tolerance and surface / end finish |
| Other Profile | Cross-section drawing, overall width / height, facet dimensions, radii, length and quantity |
FAQ
What is the difference between this page and Quartz Stirring Rods?
This page covers the rod cross-section itself — square, hexagonal or other straight faceted bar stock. Quartz Stirring Rods covers the finished laboratory tool, including working length and end geometry for chemical or thermal mixing use. A stirring rod can be made from hexagonal stock, but the finished-tool requirements are different from profile-stock requirements.
Can you cut custom polygon cross-sections beyond square and hexagonal?
Yes. Provide the required cross-section dimensions, facet layout, corner radii and length so the profile can be checked for manufacturability.