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CROSS Safety Report

Steel fabricators substituting S275/S355 steel for S235 steel

Report ID: 758 Published: 1 January 2019 Region: CROSS-UK

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Overview

A reporter has been asked many times by fabricators if they can use grade S235 steel in lieu of S275 or S355.

Key Learning Outcomes

For construction professionals and steel fabricators:

  • Substitution of construction elements for a lower grade material, should not be made without approval from the design engineer

Full Report

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The Full Report below has been submitted to CROSS and describes the reporter’s experience. The text has been edited for clarity and to ensure anonymity and confidentiality by removing any identifiable details. If you would like to know more about our secure reporting process or submit a report yourself, please visit the reporting to CROSS-UK page.

 

CROSS report 634 and report 740 refer to the use of grade S235 steel in lieu of S275 or S355. A reporter has been asked many times by fabricators if they can make this substitution, usually on cost grounds as there is a significant saving in using S235. Most do not appreciate the distinction, and this applies to some manufacturers too.

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