BRITISH STANDARD BS EN 1515-3:2005Incorporating Corrigendum No. 1

Flanges and their joints — Bolting —

Part 3: Classification of bolt materials for steel flanges, class designated

The European Standard EN 1515-3:2005 has the status of a British Standard

ICS 21.060.10; 23.040.60

�������������� ���������������������������������������������������

Lice

nsed

cop

y: P

rasa

d K

ular

ni, L

& T

EC

C D

IVIS

ION

, Ver

sion

cor

rect

as

of 2

3/09

/200

9 12

:03,

(c)

BS

I

BS EN 1515-3:2005

This British Standard was published under the authority of the Standards Policy and Strategy Committee on 14 November 2005

© BSI 2006

ISBN 0 580 46786 4

National forewordThis British Standard is the official English language version of EN 1515-3:2005.

The UK participation in its preparation was entrusted to Technical Committee PSE/15, Flanges, which has the responsibility to:

A list of organizations represented on this committee can be obtained on request to its secretary.

Cross-referencesThe British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online.

This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.

Compliance with a British Standard does not of itself confer immunity from legal obligations.

— aid enquirers to understand the text;

— present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep UK interests informed;

— monitor related international and European developments and promulgate them in the UK.

Summary of pagesThis document comprises a front cover, an inside front cover, the EN title page, pages 2 to 7 and a back cover.

The BSI copyright date displayed in this document indicates when the document was last issued.

Amendments issued since publication

Amd. No. Date Comments

16535 31 August 2006 Deletion of supersession details

Lice

nsed

cop

y: P

rasa

d K

ular

ni, L

& T

EC

C D

IVIS

ION

, Ver

sion

cor

rect

as

of 2

3/09

/200

9 12

:03,

(c)

BS

I

EUROPEAN STANDARD

NORME EUROPÉENNE

EUROPÄISCHE NORM

EN 1515-3

September 2005

ICS 21.060.10; 23.040.60

English Version

Flanges and their joints - Bolting - Part 3: Classification of boltmaterials for steel flanges, class designated

Brides et leur assemblages - Boulonnerie - Partie 3:Classification de matériaux de boulonnerie pour brides en

acier, désignées Class

Flansche und ihre Verbindungen - Schrauben und Muttern -Teil 3: Klassifizierung von Schraubenwerkstoffen für

Stahlflansches, nach Class bezeichnet

This European Standard was approved by CEN on 8 August 2005.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Central Secretariat or to any CEN member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.

CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,Slovenia, Spain, Sweden, Switzerland and United Kingdom.

EUROPEAN COMMITTEE FOR STANDARDIZATIONC OM ITÉ EUR OP ÉEN DE NOR M ALIS AT IONEUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: rue de Stassart, 36 B-1050 Brussels

© 2005 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.

Ref. No. EN 1515-3:2005: E

Lice

nsed

cop

y: P

rasa

d K

ular

ni, L

& T

EC

C D

IVIS

ION

, Ver

sion

cor

rect

as

of 2

3/09

/200

9 12

:03,

(c)

BS

I

EN 1515-3:2005 (E)

2

Contents Page

Foreword ..........................................................................................................................................................3 1 Scope ...................................................................................................................................................4 2 Normative references .........................................................................................................................4 3 Classification of bolt materials ..........................................................................................................4 Annex A (informative) Basic information......................................................................................................6 Bibliography.....................................................................................................................................................7

Lice

nsed

cop

y: P

rasa

d K

ular

ni, L

& T

EC

C D

IVIS

ION

, Ver

sion

cor

rect

as

of 2

3/09

/200

9 12

:03,

(c)

BS

I

EN 1515-3:2005 (E)

3

Foreword

This European Standard (EN 1515-3:2005) has been prepared by Technical Committee CEN/TC 74 “Flanges and their joints”, the secretariat of which is held by DIN.

This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by March 2006, and conflicting national standards shall be withdrawn at the latest by March 2006.

EN 1515 "Flanges and their joints – Bolting" consists of three Parts:

Part 1: Selection of bolting;

Part 2: Classification of bolt materials for steel flanges, PN designated;

Part 3: Classification of bolt materials for steel flanges, Class designated.

According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Den-mark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxem-bourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.

Lice

nsed

cop

y: P

rasa

d K

ular

ni, L

& T

EC

C D

IVIS

ION

, Ver

sion

cor

rect

as

of 2

3/09

/200

9 12

:03,

(c)

BS

I

EN 1515-3:2005 (E)

4

1 Scope

This European Standard covers the classification of bolt materials used in combination with steel flanges ac-cording to EN 1759-1 (Class designated).

Bolt materials are listed in EN 1515-1; flange material groups are listed in EN 1759-1.

2 Normative references

The following referenced documents are indispensable for the application of this European Standard. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.

EN 1759-1:2004, Flanges and their joint — Circular flanges for pipes, valves, fittings and accessories, Class designated — Part 1: Steel flanges NPS 1/2 to 24.

EN 1515-1, Flanges and their joints — Bolting — Part 1: Selection of bolting.

EN 10269, Steels and nickel alloys for fasteners with specified elevated and/or low temperature properties.

EN ISO 898-1, Mechanical properties of fasteners made of carbon steel and alloy steel — Part 1: Bolts, screws and studs (ISO 898-1:1999).

EN ISO 3506-1, Mechanical properties of corrosion-resistant stainless steel fasteners — Part 1: Bolts, screws and studs (ISO 3506-1:1997).

3 Classification of bolt materials

The classification of bolt materials as given in Table 1 is based on the rules given in ASME B16.5 (see also annex A).

All bolting materials are subject to the following limitations:

a) High strength bolting (allowable stress 170 N/mm2 and above; see Table A.1) may be used in any flanged joint. During assembly however, care should be taken not to over-stress the flanges (e. g. by means of torque control).

b) Intermediate strength bolting may be used in any flanged joint, provided the ability according to EN 1759-1:2004, 5.3.1 is verified.

c) Low strength bolting (allowable stress 140 N/mm2 and below; see Table A.1) is restricted to CL 150 and CL 300. The ability according to EN 1759-1:2004, 5.3.1 shall be verified, with special consideration of the gasket.

Lice

nsed

cop

y: P

rasa

d K

ular

ni, L

& T

EC

C D

IVIS

ION

, Ver

sion

cor

rect

as

of 2

3/09

/200

9 12

:03,

(c)

BS

I

EN 1515-3:2005 (E)

5

Table 1 — Classification of bolting

Bolting according to EN 1515-1

Line Material / strength class Standard Diameter

mm Classification

01 4.6 EN ISO 898-1 all Low strength 02 5.6 EN ISO 898-1 all Intermediate strength 04 8.8 EN ISO 898-1 all High strength 05, 07 25CrMo4 EN 10269 all High strength 06, 08 42CrMo4 EN 10269 all High strength 09 30CrNiMo8 EN 10269 all High strength 10 42CrMo5-6 EN 10269 all High strength 11 40CrMoV4-6 EN 10269 all High strength 12 21CrMoV5-7 EN 10269 all High strength 13 20CrMoVTiB4-10 EN 10269 all High strength 14 X6NiCrTiMoVB 25-15-2 EN 10269 all Intermediate strength 15 X7CrNiMoBNb16-16 EN 10269 all High strength 16, 18 A4-50,A2-50 EN ISO 3506-1 ≤ 39 Low strength 17, 19 A4-70, A2-70 EN ISO 3506-1 ≤ 24 High strength 20 X5CrNiMo17-12-2 AT EN 10269 all Low strength 21 X5CrNiMo17-12-2 AT+C EN 10269 all Intermediate strength 22 X5CrNi18-10 EN 10269 all Low strength 23 X5CrNi18-10 AT+C EN 10269 all Intermediate strength

Lice

nsed

cop

y: P

rasa

d K

ular

ni, L

& T

EC

C D

IVIS

ION

, Ver

sion

cor

rect

as

of 2

3/09

/200

9 12

:03,

(c)

BS

I

EN 1515-3:2005 (E)

6

Annex A (informative)

Basic information

The classification has been developed with the following rules:

a) Classification according to ASME B16.5:1996, 5.3 and table 1B.

b) Allowable stresses for EN-materials are min of 1/3 Rm and 2/3 Reh at room temperature.

c) High strength is classified with an allowable stress of 170 N/mm2 and higher, low strength with 140 N/mm2 and lower. If an EN-material has an equivalent ASTM material according to EN 1515-1, the classification according to B16.5 shall govern (see line 14, 21 and 23).

Table A.1 — Development of bolting classification

Rm Reh Allowable

stress

Material / strength class

ASTM

Allowable stress EN 1515-1 Material / strength class

EN

N/mm2 N/mm2 N/mm2 ksi N/mm2

Classification

01 4.6 400 240 133 A307 Gr.B 7 48 low

02 5.6 500 300 167 — — - intermediate

04 8.8 800 640 267 A354 Gr.BC 25 172 high

05, 07 25CrMo4 600 440 200 — — - high

06, 08 42CrMo4 860 730 287 B7 25 172 high

09 30CrNiMo8 1 040 940 347 L43 25 172 high

10 42CrMo5-6 860 700 287 — — - high

11 40CrMoV4-6 850 700 283 B16 25 172 high

12 21CrMoV5-7 700 550 233 — — - high

13 20CrMoVTiB4-10 820 660 273 — — - high

14 X6NiCrTiMoVB 25-15-2 900 600 300 A453 Gr.660 21 147 intermediate

15 X7CrNiMoBNb16-16 650 500 217 — — - high

16, 18 A4-50,A2-50 500 210 140 — — - low

17, 19 A4-70, A2-70 700 450 233 — — - high

20 X5CrNiMo17-12-2 500 200 133 B8M 19 130 low

21 X5CrNiMo17-12-2 AT+C 700 350 233 B8M Cl.2 20 138 intermediate

22 X5CrNi18-10 500 190 127 B8 19 130 low

23 X5CrNi18-10 AT+C 700 350 233 B8 CL.2 20 138 intermediate

Lice

nsed

cop

y: P

rasa

d K

ular

ni, L

& T

EC

C D

IVIS

ION

, Ver

sion

cor

rect

as

of 2

3/09

/200

9 12

:03,

(c)

BS

I

EN 1515-3:2005 (E)

7

Bibliography

[1] ASME B16.5:1996, (with addenda 1998), Pipe flanges and flanged fittings.

Lice

nsed

cop

y: P

rasa

d K

ular

ni, L

& T

EC

C D

IVIS

ION

, Ver

sion

cor

rect

as

of 2

3/09

/200

9 12

:03,

(c)

BS

I

Lice

nsed

cop

y: P

rasa

d K

ular

ni, L

& T

EC

C D

IVIS

ION

, Ver

sion

cor

rect

as

of 2

3/09

/200

9 12

:03,

(c)

BS

I

BS EN 1515-3:2005

BSI

389 Chiswick High Road

London

W4 4AL

BSI — British Standards InstitutionBSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal Charter.

Revisions

British Standards are updated by amendment or revision. Users of British Standards should make sure that they possess the latest amendments or editions.

It is the constant aim of BSI to improve the quality of our products and services. We would be grateful if anyone finding an inaccuracy or ambiguity while using this British Standard would inform the Secretary of the technical committee responsible, the identity of which can be found on the inside front cover. Tel: +44 (0)20 8996 9000. Fax: +44 (0)20 8996 7400.

BSI offers members an individual updating service called PLUS which ensures that subscribers automatically receive the latest editions of standards.

Buying standards

Orders for all BSI, international and foreign standards publications should be addressed to Customer Services. Tel: +44 (0)20 8996 9001. Fax: +44 (0)20 8996 7001. Email: orders@bsi-global.com. Standards are also available from the BSI website at http://www.bsi-global.com.

In response to orders for international standards, it is BSI policy to supply the BSI implementation of those that have been published as British Standards, unless otherwise requested.

Information on standards

BSI provides a wide range of information on national, European and international standards through its Library and its Technical Help to Exporters Service. Various BSI electronic information services are also available which give details on all its products and services. Contact the Information Centre. Tel: +44 (0)20 8996 7111. Fax: +44 (0)20 8996 7048. Email: info@bsi-global.com.

Subscribing members of BSI are kept up to date with standards developments and receive substantial discounts on the purchase price of standards. For details of these and other benefits contact Membership Administration. Tel: +44 (0)20 8996 7002. Fax: +44 (0)20 8996 7001. Email: membership@bsi-global.com.

Information regarding online access to British Standards via British Standards Online can be found at http://www.bsi-global.com/bsonline.

Further information about BSI is available on the BSI website at http://www.bsi-global.com.

Copyright

Copyright subsists in all BSI publications. BSI also holds the copyright, in the UK, of the publications of the international standardization bodies. Except as permitted under the Copyright, Designs and Patents Act 1988 no extract may be reproduced, stored in a retrieval system or transmitted in any form or by any means – electronic, photocopying, recording or otherwise – without prior written permission from BSI.

This does not preclude the free use, in the course of implementing the standard, of necessary details such as symbols, and size, type or grade designations. If these details are to be used for any other purpose than implementation then the prior written permission of BSI must be obtained.

Details and advice can be obtained from the Copyright & Licensing Manager. Tel: +44 (0)20 8996 7070. Fax: +44 (0)20 8996 7553. Email: copyright@bsi-global.com.