DIN EN 10263-4

February 2002

D EUTSCHE NORM

Steel rod, bars and wire for cold heading and cold extrusion Part 4: Technical delivery conditions for steels for quenching and tempering English version of DIN EN 10263-4

{

EN 10263-4 Supersedes DIN 1654-4, October 1989 edition.

ICS 77.140.60; 77.140.65 Walzdraht, Stäbe und Draht aus Kaltstauch- und Kaltfließpressstählen – Teil 4: Technische Lieferbedingungen für Vergütungsstähle

European Standard EN 10263-4 : 2001 has the status of a DIN Standard. A comma is used as the decimal marker.

National foreword This standard has been prepared jointly by ECISS/TC 15 ‘Wire rod – Qualities, dimensions, tolerances and specific tests’, ECISS/TC 23 ‘Steel for heat treatment, alloy steels and free-cutting steels – Qualities’, and ECISS/TC 30 ‘Steel wires’. The responsible German body involved in its preparation was the Normenausschuss Eisen und Stahl (Steel and Iron Standards Committee), Technical Committee Kaltstauch- und Kaltfließpressstähle. For ease of reference, the table overleaf correlates the material designations/symbols used in DIN 1654-4 with those given in the present standard.

Continued overleaf. EN comprises 16 pages.

"Copies derived from the electronic database of Johnson Controls. Reproduced in accordance with "Notice of copyright No. 7 of DIN."

© 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).

Ref. No. DIN EN 10263-4 : 2002-02 English price group 11

Sales No. 1111

"Copies derived from the electronic database of Johnson Controls. Reproduced in accordance with "Notice of copyright No. 7 of05.02 DIN."

Page 2 DIN EN 10263-4 : 2002-02 Table: Correlation of the material designations used in DIN 1654-4 and EN 10263-4 Material designation DIN 1654-4 Symbol

EN 10263-4 Number

Symbol

Number

Cq 22

1.1152

–

–

Cq 35

1.1172

C35EC

1.1172

Cq 45

1.1192

C45EC

1.1192

38 Cr2

1.7003

38Cr2

1.7003

46 Cr 2

1.7006

46Cr2

1.7006

34 Cr 4

1.7033

34Cr4

1.7033

37 Cr 4

1.7034

37Cr4

1.7034

41 Cr 4

1.7035

41Cr4

1.7035

25 CrMo 4

1.7218

25CrMo4

1.7218

34 CrMo 4

1.7220

34CrMo4

1.7220

42 CrMo 4

1.7225

42CrMo4

1.7225 1.6582

34 CrNiMo 6

1.6582

34CrNiMo6

30 CrNiMo 8

1.6580

–

22 B 2

1.5508

23B2

1.5508

28 B2

1.5510

28B2

1.5510

35 B 2

1.5511

–

19 MnB 4

1.5523

(20MnB4)

–

– (1.5525)

Amendments DIN 1654-4, October 1989 edition, has been superseded by the specifications of EN 10263-4. Previous editions DIN 1654: 1954-08; DIN 1654-4: 1980-03, 1989-10.

"Copies derived from the electronic database of Johnson Controls. Reproduced in accordance with "Notice of copyright No. 7 of DIN."

EN 10263-4 June 2001

ICS 77.140.60; 77.140.65 Descriptors:

English version

Steel rod, bars and wire for cold heading and cold extrusion Part 4: Technical delivery conditions for steels for quenching and tempering Barres, fil machine et fils en acier pour déformation à froid et extrusion à froid – Partie 4: Conditions techniques de livraison des aciers pour trempe et revenu

Walzdraht, Stäbe und Draht aus Kaltstauch- und Kaltfließpressstählen – Teil 4: Technische Lieferbedingungen für Vergütungsstähle

This European Standard was approved by CEN on 2001-04-19. 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, the Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, the Netherlands, Norway, Portugal, Spain, Sweden, Switzerland, and the United Kingdom.

| ÈÉË European Committee for Standardization Comité Européen de Normalisation Europäisches Komitee für Normung Management Centre: rue de Stassart 36, B-1050 Brussels

© 2001. CEN – All rights of exploitation in any form and by any means reserved worldwide for CEN national members.

Ref. No. EN 10263-4 : 2001 E

"Copies derived from the electronic database of Johnson Controls. Reproduced in accordance with "Notice of copyright No. 7 of DIN."

Page 2 EN 10263-4 : 2001

2 3 3 3 3 3 3 3 3 3 4 4 4 4 4 4 4

"Copies derived from the electronic database of Johnson Controls. Reproduced in accordance with "Notice of copyright No. 7 of DIN."

Page 3 EN 10263-4 : 2001

"Copies derived from the electronic database of Johnson Controls. Reproduced in accordance with "Notice of copyright No. 7 of DIN."

Page 4 EN 10263-4 : 2001

"Copies derived from the electronic database of Johnson Controls. Reproduced in accordance with "Notice of copyright No. 7 of DIN."

Page 5 EN 10263-4 : 2001

"Copies derived from the electronic database of Johnson Controls. Reproduced in accordance with "Notice of copyright No. 7 of DIN."

Page 6 EN 10263-4 : 2001

"Copies derived from the electronic database of Johnson Controls. Reproduced in accordance with "Notice of copyright No. 7 of DIN."

Table 2 - Steel grades and chemical composition for steel grades without boron (heat analysis) % by mass a) b)

Page 7 EN 10263-4 : 2001

"Copies derived from the electronic database of Johnson Controls. Reproduced in accordance with "Notice of copyright No. 7 of DIN."

Table 3 - Steel grades and chemical composition for steel grades containing boron (heat analysis) % by mass a) b)

Page 8 EN 10263-4 : 2001

Table 4 - Permissible devations between product analysis and the limiting values specified in tables 2 and 3 for the heat analysis

"Copies derived from the electronic database of Johnson Controls. Reproduced in accordance with "Notice of copyright No. 7 of DIN."

Page 9 EN 10263-4 : 2001

Table 5 - Mechanical properties for steel grades without boron

"Copies derived from the electronic database of Johnson Controls. Reproduced in accordance with "Notice of copyright No. 7 of DIN."

Page 10 EN 10263-4 : 2001

"Copies derived from the electronic database of Johnson Controls. Reproduced in accordance with "Notice of copyright No. 7 of DIN."

Table 6 - Mechanical properties for steel grades containing boron

Page 11 EN 10263-4 : 2001

"Copies derived from the electronic database of Johnson Controls. Reproduced in accordance with "Notice of copyright No. 7 of DIN."

Table 6 (concluded)

Page 12 EN 10263-4 : 2001

"Copies derived from the electronic database of Johnson Controls. Reproduced in accordance with "Notice of copyright No. 7 of DIN."

Table 7 - Hardness limits for steel grades without boron with specified (normal) hardenability (+H grades; see 6.4.1)

Page 13 EN 10263-4 : 2001

"Copies derived from the electronic database of Johnson Controls. Reproduced in accordance with "Notice of copyright No. 7 of DIN."

Table 8 - Hardness limits for steel grades without boron with restricted hardenability scatter bands (+HH and +HL grades; see 6.4.2)a)

Page 14 EN 10263-4 : 2001

"Copies derived from the electronic database of Johnson Controls. Reproduced in accordance with "Notice of copyright No. 7 of DIN."

Table 8 (concluded)a)

Page 15 EN 10263-4 : 2001

"Copies derived from the electronic database of Johnson Controls. Reproduced in accordance with "Notice of copyright No. 7 of DIN."

Table 9 - Hardness limits for steelgrades containing boron with specified (normal) hardenability (+H grades; see 6.4.1)

Page 16 EN 10263-4 : 2001

Table 10 - Maximum diameter for wich at least 90 % martensite shall be attained in the core hardness test (+CH grades)

Steels without boron

Steels containing boron

"Copies derived from the electronic database of Johnson Controls. Reproduced in accordance with "Notice of copyright No. 7 of DIN."