FD CEN ISO/TR 20491

FD CEN ISO/TR 20491

February 2022
Published document Current

Fasteners - Fundamentals of hydrogen embrittlement in steel fasteners

This document presents the latest knowledge related to hydrogen embrittlement, translated into know-how in a manner that is complete yet simple, and directly applicable to steel fasteners.

See more
View the extract
Main informations

Collections

National standards and national normative documents

Publication date

February 2022

Number of pages

28 p.

Reference

FD CEN ISO/TR 20491

ICS Codes

21.060.01   Fasteners in general

Classification index

E25-043

Print number

1

International kinship

ISO/TR 20491:2019

European kinship

CEN ISO/TR 20491:2021
Sumary
Fasteners - Fundamentals of hydrogen embrittlement in steel fasteners

This document presents the latest knowledge related to hydrogen embrittlement, translated into know-how in a manner that is complete yet simple, and directly applicable to steel fasteners.

Replaced standards (1)
FD ISO/TR 20491
May 2019
Published document Cancelled
Fasteners - Fundamentals of hydrogen embrittlement in steel fasteners

<p>This document presents the latest knowledge related to hydrogen embrittlement, translated into <i>know-how</i> in a manner that is complete yet simple, and directly applicable to steel fasteners.</p>

Table of contents
View the extract
  • Avant-propos européen
  • Avant-propos
  • 1 Domaine d'application
  • 2 Références normatives
  • 3 Termes et définitions
  • 4 Abréviations et symboles
  • 5 Description générale de la fragilisation par l'hydrogène
  • 6 Mécanisme d'endommagement par l'hydrogène
  • 7 Morphologie de la rupture
  • 8 Conditions à la pointe d'une fissure
  • 9 Conditions d'une rupture due à la fragilisation par l'hydrogène
  • 10 Fixations cémentées
  • 11 Galvanisation à chaud et effet de "sur-trempe"
  • 12 Relaxation des contraintes avant revêtement électrolytique
  • 13 Fixations à filetage roulé après traitement thermique
  • 14 Méthodes d'essai pour la fragilisation par l'hydrogène
  • 15 Dégazage
  • Bibliographie
ZOOM ON ... the Requirements department
To comply with a standard, you need to quickly understand its issues in order to determine its impact on your activity.

The Requirements department helps you quickly locate within the normative text:
- mandatory clauses to satisfy,
- non-essential but useful clauses to know, such as permissions and recommendations.

The identification of these types of clauses is based on the document “ISO / IEC Directives, Part 2 - Principles and rules of structure and drafting of ISO documents ”as well as on a constantly enriched list of verbal forms.

With Requirements, quickly access the main part of the normative text!

With Requirements, quickly access the main part of the normative text!
Need to identify, monitor and decipher standards?

COBAZ is the simple and effective solution to meet the normative needs related to your activity, in France and abroad.

Available by subscription, CObaz is THE modular solution to compose according to your needs today and tomorrow. Quickly discover CObaz!

Request your free, no-obligation live demo

I discover COBAZ