S.R. CEN ISO/TR 20491:2021
Current
The latest, up-to-date edition.
Fasteners - Fundamentals of hydrogen embrittlement in steel fasteners (ISO/TR 20491:2019)
Hardcopy , PDF
English
26-12-2021
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and abbreviated terms
5 General description of hydrogen embrittlement
6 Hydrogen damage mechanism
7 Fracture morphology
8 Conditions at the tip of a crack
9 Conditions for hydrogen embrittlement failure
11 Hot dip galvanizing and thermal up-quenching
12 Stress relief prior to electroplating
13 Fasteners thread rolled after heat treatment
14 Hydrogen embrittlement test methods
15 Baking
Bibliography
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