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Suprasil

Heraeus provides premium quartz glass tubes for UV and deep UV application with superior visual quality.
Heraeus applies proprietary multi-step processing that results in a free drawn tube (drawn without the use of a die or mandrel). The resulting lamp has nearly blemish free surfaces, no airlines, a very low bubble content and high homogeneity.
Due to our multi-step production process these tubes are available in a practically unlimited range of diameters and wall thickness.
Multi-step tubes are available in small batch quantities

Applications:
  • spectroscopy

Lamp Types:
  • hollow cathode lamps
  • deuterium lamps

Properties of Suprasil:
  • highest purity
  • high OH content ~ 400 ppm

Minimum Order Quantity:
5kg

Outer Diameter (OD)
OD-Range

Tolerance*

2 – ≤ 8 mm
± 0.2 mm
> 8 – ≤ 17 mm
± 0.3 mm
> 17 – ≤ 25 mm
± 0.4 mm
> 25 – ≤ 30 mm
± 0.5 mm
> 30 – ≤ 35 mm
± 0.6 mm
> 35 – ≤ 40 mm
± 0.8 mm
*Other dimensions and tolerances on request.
Wall Thickness (WT)
WT-Range

Tolerance*
< 1.2 mm
± 0.2 mm
> 1.2 - 1.6 mm
± 0.3 mm
> 1.6 - 2.0 mm ± 0.4 mm
> 2.0 - 2.5 mm
± 0.5 mm
> 2.0 - 2.8 mm
± 0.6 mm
> 2.8 - 3.2 mm
± 0.7 mm
> 3.2 - 4.0 mm ± 0.6 mm
> 4.0 - 4.5 mm ± 0.7 mm
*Other dimensions and tolerances on request.
Typical chemical impurities (bulk) (ppm, μg/g) OH Content (ppm, mg/g)
Li Na K Mg Ca Fe Cu Cr Mn Al Ti OH content
0.01 0.05 0.01 0.005 0.05 0.02 0.01 0.005 0.005 0.05 0.05 »800
*no change in the OH content by the annealing process