National foreword

This British Standard is the official English language version of EN 1011‑2:2001 including amendment A1:2003. Together with BS EN 1011‑1:1998 it supersedes BS 5135:1984 which is withdrawn.

It is important to that the BS EN 1011 series of standards uses the concept of heat input to the weld where as BS 5135 used arc energy. These two terms are not interchangeable and care should be taken when transposing data from BS 5135 to the BS EN 1011 standards.

Attention is also drawn to the fact that annex C of this standard details two methods for predicting preheat temperatures to avoid hydrogen cracking. The differences in origin and experience used to develop these two methods are detailed in C.1 and this can be used as a guide to their application. Traditionally in the UK the method detailed in BS 5135 has been used in conjunction with weld procedure approval in accordance with the BS EN 288 series. The method detailed in C.2 is that given in BS 5135, in an updated form.

The UK participation in its preparation was entrusted to Technical Committee WEE/17, Metal-arc welding of steel, which has the responsibility to

aid enquirers to understand the text;
present to the responsible European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed;
monitor related international and European developments and promulgate them in the UK.

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

Cross-references

The 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.

This British Standard, having been prepared under the direction of the Engineering Sector Committee, was published under the authority of the Standards Committee and comes into effect on 15 March 2001

Summary of pages

This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 58, an inside back cover and a back cover.

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

This European Standard was approved by CEN on 6 July 2000 and amendment A1 was approved by CEN on 20 November 2003..

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.

This European Standard exists 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, Czech Republic, Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Sweden, Switzerland and United Kingdom.

Foreword

This European Standard has been prepared by Technical Committee CEN/TC 121, Welding, the Secretariat of which is held by DS.

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 July 2001, and conflicting national standards shall be withdrawn at the latest by July 2001.

This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association.

For relationship with EU Directive(s), see informative annex ZA, which is an integral part of this standard.

According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom.

Foreword to amendment A1

This document EN 1011‑2:2001/A1:2003 has been prepared by Technical Committee CEN/TC 121 Welding, the secretariat of which is held by DS.

This Amendment to the European Standard EN 1011‑2:2001 shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by June 2004, and conflicting national standards shall be withdrawn at the latest by June 2004.

This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association.

According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and the United Kingdom.

Introduction

This European Standard supplements EN 1011‑1. It is issued with several annexes in order that it can be extended to cover the different types of steel which are produced to all the European steel standards for ferritic steels (see clause 5).

This standard gives general guidance for the satisfactory production and control of welds in ferritic steels. Details concerning the possible detrimental phenomena which can occur are given with advice on methods by which they can be avoided. This standard is generally applicable to all ferritic steels and is appropriate regardless of the type of fabrication involved, although the application standard can have additional requirements.

1 Scope

This European Standard gives guidance for manual, semi-mechanized, mechanized and automatic arc welding of ferritic steels (see clause 5), excluding ferritic stainless steels, in all product forms.

2 Normative references

3 Terms and definitions

4 Symbols and abbreviations

5 Parent metal

6 Weldability factors

7 Handling of welding consumables

8 Weld details

8.1 Butt welds

8.2 Fillet welds

9 Welds in holes or slots

10 Preparation of joint face

10.1 General

10.2 Fusion faces

10.3 Un-welded faces

11 Alignment of butt welds before welding

12 Preheating

13 Tack welds

14 Temporary attachments

15 Heat input

16 Welding procedure specification

17 Identification

18 Inspection and testing

19 Correction of non-conforming welds

20 Correction of distortion

21 Post weld heat treatment

Bibliography

BS EN 1011-2:2001

Welding. Recommendations for welding of metallic materials - Arc welding of ferritic steels

Current

Published:

15 Mar 2001