din - 食品丶化工和制药工业用管.不锈钢管.尺寸,材料

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1、DIN11850-1999食品丶化工和制药工业用管.不锈钢管.尺寸,材料DIN11850UDC621.643.2-034TSCHENORMJuly198514.018.8:663/664stainlesssteelpipesDINforthefoodindustry11850dimensions,materialssupersedes11.76.editionDimensionsinmm1.FieldofapplicationThisstandardshallapplytodimensions,material,internal

2、andexternalsurfacequalityandmarkingofseamlessandweldedstainlesssteelpipesforpipelinesystemsinthefoodindustry.Itshallapplyinconjunctionwith17456toseamlesspipesandDIN17455toweldedpipes.2.DimensionThedimensionandpermissibledeviationsofthepipesarelistedinTable11DIN11850T

3、able1NominalSeriestoleranceWeightdiameterKg/m(7.97kremarkDN123OD.devWallthickness.devg/dm3)12±0.121.0±10%0.27Pipeswith1013±0.31.5±10%0.43greaterwallthicknessesthan14±0.32.0±10%0.60accordingtoseries1shall18±0.121.0±10%0.42beselectedfromexisting1519±0.31.5±10%0.66pipes

4、tandardsforthis20±0.32.0±10%0.90nominaldiameterrange22±0.121.0±10%0.512023±0.31.5±10%0.81Thepermissibledeviationsshallbe24±0.32.0±10%1.1028±0.151.0±10%0.66determinedfromthe25circumference.29±1%1.5±10%1.03thepermissibleovality30±0.32.0±10%1.40shallbe±1%onthepipe34±0.1

5、51.0±10%0.823235±1%1.5±outsidediameter10%1.2636±1%2.0±10%1.7040±0.21.0±10%0.974041±1%1.5±10%1.5042±1%2.0±10%2.0052±0.21.0C10%1.265053±1%1.5±10%1.9054±1%2.0±10%2.606570±0.32.0±10%3.438085±0.32.0±10%4.16100104±0.32.0±10%5.03125129±0.42.0±10%6.36150154±0.42.0±10%7.49Ass

6、ociatedpipeunionSeries1:forrolling(uptoDN100)andbuttweldingSeries2andseries3:forbuttwelding3.designationandorder2DIN118503.1detailsshallbespecifiedinthefollowingsequenceinthedesignationforpipesaccordingtothisstandard:_Name(pipe)_DINnumberofthisdimensionstandard(DIN11

7、850)_Characteristicdimensionsofthepipe.pipeoutsidediameterxwallthickness(seeTable1)_DINnumberofthetechnicalspecification(weldedpipesDIN17455,seamlesspipesDIN17456)_Materialnumberforthesteelgrade_Abbreviationforthesurfacequality(seeTable2)Example:Designationofaweldedp

8、ipeaccordingtothisstandardwithapipeoutsideof40mmandawallthicknessof1mmconformingtothetechnicalspecificationsaccordingtoDIN17455made