DIN17212-1972-Сталипламеннойииндукционнойзакалки-Спецификациякачества参考技术资料

免费标准下载网(w.frecbz..ncD0669.14:621.785.54DEUTSCHE NORMENAugust 1972瓜Flame and Induction Hardening Steels6Suality Specifications17212Stahle fiir Flamm-und Induktionsharten;Guitevorschriften8In accordance with the Act concerning Units of Measurement of 2nd July 1969 and the Implementa-89358a8o5e18oe5s6ea992en8&na98254a3488o)for the notched bar impact strength.The numerical values stated in these units are definitive.According to 3,paragraph (1).1 of the above Act,the units and numerical values appearing inbrackets alongside are no longer permitted,since the kg is the base unit for mass.言This Standard is based on Stahl-Eisen Data Sheet 830 of the Verein Deutscher Eisenhiittenleute(Association of German Ferrous Metallurgists).For connection with international standards (ISORecommendation and Euronorm)see Table 1 and Explanations.Sections marked by a (.contain information regarding agreements which are to be made,or whichmay be made,when ordering.1.Scope1.1.mis Standard applies to flame and induction hardening steels according to Table 1 in theform ofrolled or forged half-finished products (e.g.blooms,roughed slabs,billets),8hot rolled or hot forged steel bars (round,square,hexagon,octagon and flat steel),hot rolled wire,hot rolled sheet,strip and wide flats,seamless tubes,rings and tyres,open-die forgings and drop forgings,generally up to the diameters stated in Table 6,or in other equivalent dimensions.2.Definitionusual88ne and2.Anwenderinformation3:atlistedDie Originalfassung der Norm enthalt Elemente,blez.B.farbige Abbildungen oder Tabellen,die in4:dieser gescannten Form der Norm nicht originalge-4…4treu darstellbar sind.Dies muB bei der Anwendungberucksichtigt werden.MaBgebend fur das Anwen-5✉元den jeder DIN-Norm ist deren Originalfassung mithdem neuesten Ausgabedatum.Vergewissern Sient andsich bitte in den DIN-Mitteilungen,im aktuellenDIN-Katalog mit dem neuesten Erganzungshefttheoder in der aktuellen Ausgabe der PERINORM.8Alleinverkauf der Normblatter durch Beuth-Vertrieb GmbH,Berlin 30 und KolnDIN 17212 engl.Preisgr.免费标准下载网(www.freebz.nc)无需注册即可下载