National foreword

This British Standard has been prepared under the direction of the Iron and Steel Standards Policy Committee and is the English language version of EN 10034:1993, Structural steel I and H sections — Tolerances on shape and dimensions, published by the European Committee for Standardization (CEN).

This British Standard, together with BS 4‑1:1993, published simultaneously with this standard, supersedes BS 4‑1:1980, which is withdrawn.

A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application.

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

Summary of pages

This document comprises a front cover, an inside front cover, pages i and ii, the EN title page, pages 2 to 8, an inside back cover and a back cover.

This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover.

Cooperating organizations

The European Committee for Standardization (CEN), under whose supervision this European Standard was prepared, comprises the national standards organizations of the following countries:

This British Standard, having been prepared under the direction of the Iron and Steel Standards Policy Committee, was published under the authority of the Standards Board and comes into effect on 15 December 1993

The following BSI references relate to the work on this standard: Committee reference ISM/13 Draft for comment 91/38815 DC

This European Standard was approved by CEN on 1993-08-30. 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 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 translation under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.

Foreword

This European Standard has been prepared by ECISS/TC11 Sections: Tolerances and Dimensions; the Secretariat of which is held by BSI.

The discussions within ECISS/TC11 were based on Euronorm 34-62 Broad flanged beams with parallel sides. Rolling tolerances

and

Euronorm 44-63 Hot rolled IPE joists. Rolling tolerances

This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at least by March 1994, and conflicting national standards shall be withdrawn at the latest by March 1994.

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

1 Scope

This European Standard specifies tolerances on shape dimensions and mass of structural steel I and H sections. These requirements do not apply to I and H sections rolled from stainless steel. These requirements do not apply to taper flange sections.

NOTE Until a European Standard for dimensions of I and H beams is published Euronorm 19 and Euronorm 53 or corresponding national standards may be used.

2 Normative references

3 Definitions

4 Rolling tolerances for structural steel I and H sections

4.1 Section height (h)

4.2 Flange width (b)

4.3 Web thickness (s)

4.4 Flange thickness (t)

4.5 Out-of-squareness (k + k′)

4.6 Web off-centre (e)

4.7 Straightness (q_xx or q_yy)

5 Tolerance on mass

6 Tolerance on length

BS EN 10034:1993

Structural steel I and H sections. Tolerances on shape and dimensions

Current

Published:

15 Dec 1993