DIN EN ISO 7539-11 E 2014-08 PDF

Full title and description

STB DIN EN ISO 7539-11 E 2014-08 — Corrosion of metals and alloys — Stress corrosion cracking — Part 11: Guidelines for testing the resistance of metals and alloys to hydrogen embrittlement and hydrogen‑assisted cracking (adoption of ISO 7539‑11:2013 as an EN/DIN publication, issued August 2014).

Abstract

This document gives guidance on the key features to be taken into account when designing and conducting tests to evaluate the resistance of a metal or its alloy to hydrogen embrittlement and hydrogen‑assisted cracking. It is a guidance/overview document (particular test methods are covered in other standards which are referenced).

General information

• Status: Published as a German/EN adoption in 2014; later withdrawn/replaced by a subsequent DIN/EN publication (see note).
• Publication date: Issued July–August 2014 (commonly referenced as 2014‑08 / issued 18 July 2014; published 1 August 2014).
• Publisher: Original international publisher ISO (ISO 7539‑11:2013); national/EN adoption published by DIN as DIN EN ISO 7539‑11.
• ICS / categories: 77.060 — Corrosion of metals.
• Edition / version: Adoption of ISO 7539‑11:2013; German/EN edition referenced as 2014‑08 (later consolidated in DIN entry 2015‑03).
• Number of pages: National/EN/DIN publications typically show 24 pages for the 2014/2015 German edition; the ISO original document is shorter (ISO listing shows the international document length).

Scope

This part of ISO 7539 provides guidance on planning and carrying out tests intended to evaluate susceptibility to hydrogen embrittlement and hydrogen‑assisted cracking. It identifies key test features (specimen selection, stressing methods, environmental control, monitoring and assessment) but does not prescribe detailed procedures for particular methods — those are given in other parts of the ISO 7539 series and referenced standards.

Key topics and requirements

• Overview of factors affecting hydrogen embrittlement and hydrogen‑assisted cracking (material condition, microstructure, residual stresses, environment).
• Guidance on selection and preparation of specimens for hydrogen‑related testing.
• Recommendations for stress application (constant load, constant strain, rising load/displacement where appropriate) and for test rigs.
• Environmental control and hydrogen charging/conditioning considerations to reproduce service‑relevant conditions.
• Monitoring, inspection and criteria for assessing test outcomes (crack initiation/propagation, time‑to‑failure, fractography).
• Cross‑references to specific method standards in the ISO 7539 series and other related documents.

Typical use and users

Used by materials and corrosion engineers, metallurgists, testing laboratories, OEMs and regulatory bodies to design and interpret hydrogen‑embrittlement resistance tests. It is primarily guidance for laboratory test program design rather than a step‑by‑step test method.

Related standards

Part of the multi‑part ISO 7539 series on stress corrosion testing (Parts 1–10, 12, etc.) which describe specific specimen types and procedures (bent‑beam, U‑bend, C‑ring, pre‑cracked specimens, slow strain rate testing, weldment evaluation, atmospheric SCC testing, and others). National adoptions (EN/DIN/BS/SS) carry the same structure.

Keywords

Hydrogen embrittlement, hydrogen‑assisted cracking, stress corrosion cracking, corrosion testing, specimen preparation, stress application, materials testing, ISO 7539.

FAQ

Q: What is this standard?

A: It is the German/EN adoption (DIN EN ISO designation) of ISO 7539‑11, a guidance document on testing metals and alloys for resistance to hydrogen embrittlement and hydrogen‑assisted cracking. The underlying ISO document is ISO 7539‑11:2013.

Q: What does it cover?

A: The standard covers guidance on designing and conducting tests (choice of specimen, stressing methods, environmental control, monitoring and evaluation) to assess susceptibility to hydrogen embrittlement and hydrogen‑assisted cracking; it does not give detailed step‑by‑step methods for each test type.

Q: Who typically uses it?

A: Materials engineers, corrosion specialists, testing laboratories, product manufacturers (especially for high‑strength steels, alloys and critical components), certification bodies and researchers involved in hydrogen effects on metals.

Q: Is it current or superseded?

A: The ISO core document is ISO 7539‑11:2013. The DIN/EN adoption dated 2014 was later consolidated in national EN/DIN publications (references show a DIN EN ISO 7539‑11 entry dated 2015‑03). Some national listings mark the 2014 electronic draft as withdrawn and replaced by the consolidated 2015 DIN edition — users should check the national body (DIN/CEN/ISO) for the authoritative current status before purchase or application.

Q: Is it part of a series?

A: Yes — it is Part 11 of the ISO 7539 series (multi‑part series on stress corrosion testing); other parts cover specific specimen types and test methods (Parts 1–10, 12, etc.).

Q: What are the key keywords?

A: Hydrogen embrittlement; hydrogen‑assisted cracking; stress corrosion cracking; corrosion testing; materials testing; specimen preparation; stress application.