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  • ONORM EN ISO 8249 : 2000

    Current The latest, up-to-date edition.
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    WELDING - DETERMINATION OF FERRITE NUMBER (FN) IN AUSTENITIC AND DUPLEX FERRITIC-AUSTENITIC CR-NI STAINLESS STEEL WELD METALS

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    Language(s): 

    Published date:  12-01-2013

    Publisher:  Osterreichisches Normungsinstitut/Austrian Standards

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    Table of Contents - (Show below) - (Hide below)

    Foreword
    Introduction
    1 Scope
    2 Normative references
    3 Principle
    4 Calibration
    5 Standard method for covered electrode test pads
    6 Standard methods for test pads of other processes and
          for production welds
    7 Other methods
    8 Procedures used to prepare secondary standards for
          delta ferrite in austenitic stainless steel weld metal
    Annex A (informative) Manufacture of secondary standards by
                          strip cladding
    Annex B (informative) Manufacture of secondary standards by
                          centrifugal chill casting
    Bibliography

    Abstract - (Show below) - (Hide below)

    Defines the apparatus and method for preparation and measurement of standard pads for manual metal arc covered electrodes. The general method is also recommended for the ferrite measurement of production welds and for weld metal from othe processes such as gas tungsten arc welding, gas shielded metal arc welding and submerged arc welding (in these cases the way of producing the pad should be defined); measurement of the delta ferrite content, expressed as Ferrite Number (FN), in largely austenitic and duplex ferritic-austentic stainless steel) weld metal through the attractive force between a weld metal sample and a standard permanent magnet; the calibration of other instruments to measure FN.

    General Product Information - (Show below) - (Hide below)

    Committee TC 037
    Document Type Standard
    Publisher Osterreichisches Normungsinstitut/Austrian Standards
    Status Current
    Superseded By
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