DIN175-Polished-Round-Steel-Dimensions-Permissible-Deviations

UDC669.14-422.11-408.7:001.4:621.753.1DEUTSCHE NORMOctober 1981Polished round steel西5MSDimensionsPermissible deviationsaccording to ISO tolerance zone h9175Polierter Rundstahl;Masse,zulassige Abweichungen nach ISO-Toleranzfeld h9Supersedes 05.59 editionAs it is current practice in standards published by the International Organization for Standardization (ISO),the comma%has been used throughout as a decimal marker.到Dimensions in mm1 Field of application4.1.2 The permissible deviations from the nominalThis standard applies to bright,polished round steel ofdiameter corresponding to ISO tolerance zone h9nominal diameters from 1 to 30 mm of the steels quoted(see also DIN 7160)are given in table 1.in clause 5.Details as to finish and lengths to be delivered4.1.3 The difference between the maximum and theare given in clause 6."A'e Buminimum diameter in the same cross-sectional plane mustnot exceed 50%of the permissible range for the deviation2 Conceptin diameter (e.g.0,026 mm maximum for d 20 mm).Bright steel is a steel having got a smooth,bright surfaceby descaling and non-cutting cold working or by machineTable 1.Diameters and permissible deviationscutting and showing a high dimensional accuracy.A stillof polished round steelbetter surface finish and a higher dimensional accuracyis achieved by a polished finish.Nominal diameter d1)Permissible deviationRangefrom d3 Designationfrom 1 to 30-0.025over 3 to 6-8.030over 6 to 10-8036over 10 to 18-8043over 18 to 30-80523.1 For the standard designation the following must be1)The weight (in kg/m)for the required nominalindicated in the order stated:diameter d can be calculated from the product-term,0,00617.d2 (d in mm),with a density of--DIN number of the dimensional standard,7,85 kg/dm3 taken as the basis.code number or material number of the steel grade,nominal diameter4.2 StraightnessExample:Rods are delivered straightened.Special requirementsDesignation of polished round steel of 115 CrV 3on straightness must be agreed on ordering.steel according to DIN 17 350 of nominaldiameter d±20mm:Round DIN 175-115 CrV 3-205 MaterialorRound DIN175-1.2210-20Polished round steel according to this standard ispreferably supplied in steel grades in accordance with3.2 The term "Round"may be replaced by the abbre-DIN 17350.Other steel grades can be supplied onviated form "Rd"according to DIN 1353 Part 2.agreement.The steel grade required must be quoted in the designation4 Dimensions,permissible dimensional(see clause 3)..deviations and deviations of form4.1 Diameter6 Finish and lengths to be delivered4.1.1 The range of deliverable nominal diameters is6.1 Finishgiven in table 1.The required nominal dimension mustRound steel according to this standard is supplied inbe stated in the designation (see clause 3).polished finish.Continued on pages 2 ard 34.11Sole sale rights of German Standards (DIN-Normen)are with Beuth Verlag GmbH.Berlin 300482DIN 175 Engl.Price group 5Sales No.0105