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4300Catalog MetricTube Applications Introduction RecommendedBendRadius Parkeroffersthreetypesofseamlessmetrictubesforhydraulic, pneumaticandinstrumentationapplications: Abendradiusof3timesthetubeO.D.orgreaterisrecommended � Steelseamlesscolddrawntube,phosphateandoil forcoldbendingofParkertubeswithhand,mechanicaland dippedforcorrosionresistance powerbendingequipment. � Steelseamlesscolddrawntube,zincChromium-6free UseofTubeSupports platingforcorrosionresistance TheuseofVHtubesupportsforEOandEO-2fittingsisrequired � Stainlesssteelcolddrawntube incertainthinnerwalltubestoensureproperassembly.Consult ConformanceandMaterialSpecifications thetubecharts. TestsandCertificates TemperatureRange � Parkersteel(St.37.4)metricseamlesstubecanbeused Alltubesaresubjectedtoanon-destructiveleaktestandmarked atthefullratedworkingpressureswithoutpressurerat- accordingly.Thismarkingisusedinlieuofaworkscertificate ingreductionswithinthefollowingtemperaturerange: DIN50049-2-2.TestClass1DIN17458Table7appliesfor -40�Cto+120�C.Maximumallowableoperatingtempera- tubesmadeof1.4571material. tureof+250�C. MaterialsandMechanicalProperties � Parkerstainlesssteel(1.4571)metricseamlesstubecan beusedatfullratedworkingpressureswith-outpres- SteelTypes,mechanicalpropertiesandconditionsarelisted surereductionswithinthefollowingtemperatureranges: inTableR1. -200�Cto350�C(-60to+20).Maximumallowable operatingtemperatureof+400�C.Elevatedtemperature WeldingSuitabilityandWeldability: pressurereductionsareaslistedinTableR2. � SteeltubesofSt.37.4,RSeries,areweldableaccording tousualtechniques. AsDeliveredConditions: � NotrecommendedtoweldSt.37.4,R-VZseries, StandardTubeLengths:6meters(approx.20ft) ZincChromium-6Freeplatedtubes. SurfaceFinish: Stainlesssteeltubesof1.4571aresuitableforarcwelding. TheweldingfillershouldbeselectedinaccordancewithDIN � Steel(St.37.4):Phosphatedandoiled 8556part1takingintoaccountthetypeofapplicationandthe � I.D.dimensions1.5�5mm,outsideandinsideoiled weldingtechnique. � I.D.dimensions6mmandhigher,outsideandinside phosphatedandoiled � Steel(St.37.4)R-VZSeries:ZincChromium-6Free AssemblyandInstallation PleaserefertoSectionTfortheassemblyandinstallationin- structionsforMetricTubefittings. Parker Tensile Yield % Series Material Strength Strength Elongation Condition Seamless,colddrawnunderinert Steel,finegrain 2 2 R 340N/mm min. 235N/mm min. gas,normalannealed,abbreviation quality(RR)St37.4 25%min. Series 49,000PSI 34,000PSI NBKDIN2391C,Part2 perDIN1630 Seamless,colddrawnfreeofscale, R-71 1.4571 500N/mm2min. 245N/mm2min. heattreatedinaccordancewithDIN 35%min. Series X6CrNiMoTi17122 72,500PSI 35,500PSI 17458tab.6 TableR1--ParkerSteeltubesmechanicalpropertiesandconditions -60�upto Temperature Material +20�C 50�C 100�C 200�C 300�C 400�C Pressure 1.45 -- 4.5 11 20 29 33 reductionsin% Note:Interpolationisacceptableforintermediatetemperautrelevel. TableR2--Parkerstainlesstubeelevatedtemperaturederatingfactors R3 ParkerHannifinCorporation TubeFittingsDivision Columbus,Ohio http://www.parker.com/tfd
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