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TUBING
StainlessSteelTubing
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Precut 316 stainless steel*
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AvailableODs include 0.020”, 1/32”, 1/16”, and 1/8”
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Color-codedbanding for easy identificationof the inner diameter
IDEXHealth & Science seamless, precut stainless steel tubing is
designed tomeet the exacting requirements of today’s analyses.
We machine cut and polish each end, deburr the inside and
outsideedges, andpassivate the tubing (please see thepassivation
informationon thispage).Finally,weflush reagent-grade isopropanol
througheachpiece.
Our thoroughpreparationandcleaningprocedureguarantees tubing
that is truly ready-to-use, with flat, burr-freeends and a clean finish.
Thiscare is important inachievingzero-dead-volumeconnectionsand
goodchromatographic results.
Weofferavarietyofprecut lengthsaswellas longer lengths (5’and25’)
of some sizes.Cutting the tubingdisturbsand roughens the tubing’s
end surface, sowe recommend usingour precut tubingwhenever
possible. If you need to cut tubing to custom lengths, we suggest
you thenpassivate the tubing. For adescriptionof acoldpassivation
process, pleasecontact IDEXHealth&Scienceor visit ourwebsiteat
search for “stainless steel tubing.”
*Exceptour 0.020”ODStainlessSteel Tubing,which ismanufactured from304 series stainless steel.
NOTE
PEEKpolymer tubingcanbeused to replace stainless steel tubing
inmost liquidanalytical systems.Unlike stainless steel tubing, PEEK
tubing isbiocompatible, flexible, andcaneasilybecut todesired
lengths. Seepages66–68.
All StainlessSteel tubing longer than1m is coiled.
Stainless Steel TubingPassivation
Stainless steel isnaturally self-passivating, forminganoxidized layer
onnewlycreated surfaces. IDEXHealth&Science takesextra steps
toensure thechemical resistanceof our stainless steel tubingby
manuallypassivatingbeforeandafter the tubing is cut into specified
lengths (except ina fewcaseswhere size isprohibitive). In theprecut
stage, the internalwall isacidpassivatedandflushed.After the tubing
is cut, deburredandpolished, it is completely submerged inanacid
passivationbathandagainflushedclean. The tablebelow summarizes
themanual passivation stepsperformed for each sizeof our stainless
steel tubing:
TubingOD Precut Passivation
Postcut Passivation
0.020”
All
All
1/32”
All
All
1/16”
All
All, ex. 25’ lengths
1/8”
None
All, ex. 3&5m lengths
APPLICATIONNOTE
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Our 1/32”OD tubing is designed for enhanced flexibility inhigh
pressure applications.
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Standard 1/16” and 1/8”OD stainless steel tubing is suited for
most analytical applications.
RELATEDPRODUCTS
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Our 0.020”OD tubing is the sizeof choice for theRheodyne
®
Model 8125Micro-Scale Injector Valve (page 132).
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PEEKpolymer tubing is available in all of these sizes, listedon
pages 66–67.
SPECIFICATIONS&DETAILS
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MaximumRecommendedOperatingTemperature: 750 °F (399 °C).
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Rockwell Hardness (B):Maximumof 95.
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MeetsASTMA269 andA213.
TubingOD
ODTolerance
Tubing ID
IDTolerance
0.020”
±0.0005” (12.5µm)
All
±0.0005” (12.5µm)
1/32”
+0.002”/-0.000”
(+50µm/-0µm)
All, except 0.004”
(0.10mm)
+0.000”/-0.002”
(+0µm/-50µm)
1/32”
+0.002”/-0.000”
(+50µm/-0µm)
0.004” (0.10mm)
+0.002”/-0.000”
(+50µm/-0µm)
1/16”
+0.002”/-0.000”
(+50µm/-0µm)
All
±0.001” (25µm)
1/8”
±0.003” (75µm)
All
±0.003” (75µm)
HighPressureTubing
Tubing cut
bya commercially
available
tubing cutter
File cut tubing
Precut tubing
TheBeautyof Precut Tubing
