DIN_267-3相关标准规范

UDC621.882.2-034.14/.15:539.4August 1983FastenersTechnical delivery conditionsDINProperty classes for carbon steeland alloy steel bolts and screws267Conversion of property classesPart 3Mechanische Verbindungselemente;technische Lieferbedingungen;This standard,together withFestigkeitsklassen fur Schrauben aus unlegierten oder legiertenDIN iSO 898 Part 1,AprilStahlen;Umstellung der Festigkeitsklassen1979 edition,supersedes theOctober 1967 edition,whichwas withdrawn in 1979.In keeping with current practice in standards published by the International Organization for Standardization (ISO),a comma has been used throughout as the decimal marker.This standard is concerned with the conversion of the previous property classes as defined in DIN 267 Part 3(October1967 edition)into the new property classes as defined in DIN ISO 898 Part 1 (April 1979 edition).The designation system for property classes for bolts,screws and studs,and its meaning,the associated mechanicalproperties and test methods have not changed fundamentally and so interchangeability problems are not to beexpected.Thus no amendment to the standard number is necessary in current documents.DIN 267 Part 3,October1967 edition,shall no longer be used for new designs.DIN ISO 898 Part 1 automatically applies for orders or suppliesin accordance with DIN 267 Part 3,unless otherwise agreed.The table below compares the property classes from DIN 267 Part 3(October 1967 edition)with those from DINISO 898 Part 1,indicating the assigned minimum tensile strength and yield stress values.The table also shows theproperty classes as defined in previous editions of DIN 267 (December 1960 edition).DIN 267Part33.64.64.85.65.86.66.86.98.810.912.914.9PropertyclassDIN ISO 898Part 13.64.64.85.65.86.88.89.810.9129DIN 267MinimumPart 3340400400500500600600600800100012001400tensjle strength,in N/mm2DIN ISO 898Part 13304004205005206008001)90010401220Minimum yield DIN 267stress,or stress240320300400360480154064090010801260Part 3200at permanentset limit.DIN ISO 898in N/mm2Part 119024032030042048064027209401100Property classes fromDIN 267,December 1960 edition4A4D4S5D5S6D6S6G8G10K12K1)For sizes above M 16:830.2)For sizes above M 16:660The previous property classes 6.6,6.9 and 14.9 are not specified in DIN ISO 898 Part 1,since they are no longerrequired.Property class 9.8,the application of which in Germany is not,however,foreseen in the near future,hasbeen adopted for the first time.In future,only DIN ISO 898 Part 1 is also to be applied to non-standardized bolts and screws,where property classesare required for these.Current documents shall be converted to DIN ISO 898 Part 1.Continued on page 25