HLQ 210

Heraeus multi-step HLQ 210 tubes are developed for special applications where very high quality, regarding homogeneity, bubbles and inclusions is required.

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.

HLQ 210 tubes are available in a practically unlimited range of diameters and wall thickness.

HLQ 210 tubes are available in small batch quantities.

HLQ 210 ~ 30 ppm OH*
HLQ 210 V4 < 5 ppm OH*
HLQ 210 V8 < 3 ppm OH*
HLQ 210 V40 < 1 ppm OH*

^{*OH content in weight ppm (µg/g)}

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Applications:

laser excitation
beauty and medical
high quality lamps

Lamp Types:

long arc cw and puls lamps
demanding short arc lamps

Properties of HLQ 210:

clear fused
low OH < 1 ppm available
low bubble content
high homogeneity

Minimum Order Quantity:
10 kg

Outer Diameter (OD)
OD-Range	Tolerance*
2 – 5 mm	± 0.2 mm
> 5 – 6 mm	± 0.3 mm
> 6 – 10 mm	± 0.4 mm
> 10 – 17 mm	± 0.5 mm
> 17 – 24 mm	± 0.6 mm
> 24 – 32 mm	± 1.0 mm
> 32 – 40 mm	± 1.3 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	± 0.8 mm
^{*Other dimensions and tolerances on request.}

Typical chemical impurities (bulk) (ppm, μg/g)
Li	Na	K	Mg	Ca	Fe	Cu	Cr	Mn	Al	Ti
0.6	0.3	0.4	0.05	0.5	0.1	<0.05	<0.05	<0.05	15	1.1

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