Reference number
ISO 7257:2016
International Standard
ISO 7257:2016
Aircraft — Hydraulic tubing joints and fittings — Rotary flexure test
Edition 2
2016-06
Preview
ISO 7257:2016
60681
Indisponible en français
Publiée (Edition 2, 2016)
Cette publication a été révisée et confirmée pour la dernière fois en 2021. Cette édition reste donc d’actualité.

ISO 7257:2016

ISO 7257:2016
60681
Langue
Format
CHF 63
Convertir les francs suisses (CHF) dans une autre devise

Résumé

ISO 7257:2016 specifies a flexure test procedure to determine and classify the fatigue strengths of reconnectable or permanent hydraulic tube joints.

The procedure is intended for conducting flexure tests of fittings and joints with high-strength hydraulic tubes of various alloys such as corrosion resistant steel, Nimonic?[1], titanium and aluminium alloy hydraulic tube for use on commercial and military aircraft.

A mean stress is applied by holding system pressure in the specimens and then flexing in a rotary bending test machine.

[1] Nimonic? is the trademark of a product supplied by Special Metals Corporation. This information is given for the convenience of users of this document and does not constitute an endorsement by ISO of the product named. Equivalent products can be used if they can be shown to lead to the same results.

Informations générales

  •  : Publiée
     : 2016-06
    : Norme internationale confirmée [90.93]
  •  : 2
  • ISO/TC 20/SC 10
    49.080 
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