DEUTSCHE NORM {© No part of this standard may be reproduced without the prior permission of DIN Deutsches Institut für Normung e. V., Berlin. Beuth Verlag GmbH , 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).October 2005
DIN EN 10027-1
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Document comprises 25 pages.
Designation systems for steels
Part 1: Steel names
English version of DIN EN 10027-1
Bezeichnungssysteme für Stähle – Teil 1: Kurznamen
National foreword
This standard has been prepared by Technical Committee ECISS/TC 7 ‘Conventional designation of steel’ (Secretariat: Italy).
The responsible German body involved in its preparation was the Normenausschuss Eisen und Stahl (Steel and Iron Standards Committee), Technical Subcommittee 19/1 Einteilung, Benennung und Benummerung von Stählen .
Amendments
This standard differs from the September 1992 edition and DIN V 17006-100, April 1999 edition, as follows.a) The standards have been combined and editorially revised.
b) References to steel names as in EU 27-74 have been removed.
c) Symbol O for offshore steels has been omitted (table 1).
d) Specifications for steels for engineering have been extended to allow for names for steel casting and for steels where impact properties are specified (table 4).
e) Steels for or in the form of rails are not designated by their minimum tensile strength, but by their minimum hardness (table 7).
f) High strength steel flat products for cold forming are no longer restricted to cold rolled flat products, and four more additional symbols have been included in group 1 (table 9).
g) Specifications for tin mill products have been completely revised (table 10).
h) Tool steels manufactured by powder metallurgy and high speed steels with the principal symbol PM have been included (tables 14 and 15).
i) For alloy steels where the average content by weight of at least one alloying element is ö 5 %, it is now possible to add the chemical symbol and average percentage content for alloying elements that characterize the steel with a content of 0,20 % to 1,0 % (table 14).
j) The symbol + CH (for core hardenability) has been included for special requirements (table 16).k) In table 17, the symbol + AR (aluminium rolled) has been omitted.
l) In table 18, the symbols + CPnnn (cold work hardened with a minimum 0,2 proof strength of nnn Mpa) and + SR (stress relieved) have been included.
Previous editions
DIN EN 10027-1: 1992-09
DIN V 17006-100: 1991-10, 1993-11, 1999-04ICS 77.080.20Supersedes September 1992 edition and DIN V 17006-100, April 1999 edition.
!,enD"T e c h n i c a l  I n f o r m a t i o n  C e n t r e  M A N V e r v i e l f äl t i g u n g  l t . D I N -M e r k b l a t t  3
T e c h n i c a l  I n f o r m a t i o n  C e n t r e  M A N
V e r v i e l f äl t i g u n g  l t . D I N -M e r k b l a t t  3
English version
editoriallyICS 77.080.20 Supersedes CR 10260:1998, EN 10027-1:1992.
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European Committee for Standardization
Comité Européen de Normalisation
Europäisches Komitee für Normung
© 2005. CEN – All rights of exploitation in any form and by any means  reserved worldwide for CEN national members.Ref. No. EN 10027-1:2005 E
ÈÉË
10027-1
August 2005
Designation systems for steels
Part 1: Steel names
Systèmes de désignation des aciers – Partie 1: Désignation symbolique Bezeichnungssysteme für Stä
hle – Teil 1: Kurznamen
This European Standard was approved by CEN on 2005-06-27.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Management Centre or to any CEN member.
The European Standards exist in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland, and the United Kingdom.T e c h n i c a l  I n f o r m a t i o n  C e n t r e  M A N
V e r v i e l f äl t i g u n g  l t . D I N -M e r k b l a t t  3
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T e c h n i c a l  I n f o r m a t i o n  C e n t r e  M A N V e r v i e l f äl t i g u n g  l t . D I N -M e r k b l a t t  3
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T e c h n i c a l  I n f o r m a t i o n  C e n t r e  M A N V e r v i e l f äl t i g u n g  l t . D I N -M e r k b l a t t  3
Page 4 EN 10027-1:2005
T e c h n i c a l  I n f o r m a t i o n  C e n t r e  M A N V e r v i e l f äl t i g u n g  l t . D I N -M e r k b l a t t  3

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