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BS EN ISO 15330:1999

Current
Current

The latest, up-to-date edition.

Fasteners. Preloading test for the detection of hydrogen embrittlement. Parallel bearing surface method
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

15-11-1999

National foreword
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Test apparatus
6 Sampling
7 Test procedure
8 Test evaluation
9 Test report
Bibliography
Annex ZA (normative) - Normative references
         to international publications with
         their relevant European publications

Defines a preloading test able to detect the occurrence of hydrogen embrittlement of fasteners at room temperature. Applies to: - self-tapping screws; - washers; - nuts; - self-drilling screws; - thread rolling screws; - metric bolts, screws and studs made of steel and are under tensile stress.

This International Standard specifies a preloading test which is able to detect the occurence of hydrogen embrittlement of fasteners at room temperature.

This test is applicable to

  • metric bolts, screws and studs;

  • thread rolling screws;

  • self-tapping screws;

  • self-drilling screws;

  • nuts;

  • washers

which are made of steel and are under tensile stress.

The test shall be carried out within a temperature range of 10 °C to 35 °C.

The test is suitable only for in-process control and may be carried out after any step of the manufacturing process. It is not intended as an acceptance test. It is capable of assessing differences or changes in processing conditions or techniques and to determine the effectiveness of the various processing steps including pre- and post-coating treatments (baking) to reduce the mobile hydrogen in the fasteners.

This test does not relieve the manufacturer or processor from the responsibility of imposing and monitoring suitable process control.

NOTE The chance of detecting hydrogen embrittlement decreases significantly if the test is started more than 24 h after the last step of manufacturing process. Therefore, in normal cases this test is not suitable for acceptance testing.

Special attention shall be given to the reference test in clause 7.3.

Committee
FME/9
DevelopmentNote
Supersedes 99/707439 DC. (11/2005)
DocumentType
Standard
Pages
20
PublisherName
British Standards Institution
Status
Current
Supersedes

ISO 9587:2007 Metallic and other inorganic coatings Pretreatment of iron or steel to reduce the risk of hydrogen embrittlement
ISO 7085:1999 Mechanical and performance requirements of case hardened and tempered metric thread rolling screws
EN 20273 : 1991 FASTENERS - CLEARANCE HOLES FOR BOLTS AND SCREWS (ISO 273:1979)
ISO 10666:1999 Drilling screws with tapping screw thread — Mechanical and functional properties
EN ISO 2702:2011 Heat-treated steel tapping screws - Mechanical properties (ISO 2702:2011)
EN ISO 10666 : 1999 DRILLING SCREWS WITH TAPPING SCREW THREAD - MECHANICAL AND FUNCTIONAL PROPERTIES
ISO 273:1979 Fasteners — Clearance holes for bolts and screws
EN ISO 7085 : 1999 MECHANICAL AND PERFORMANCE REQUIREMENTS OF CASE HARDENED AND TEMPERED METRIC THREAD ROLLING SCREWS
ISO 2702:2011 Heat-treated steel tapping screws — Mechanical properties

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