ASTM E322-12 Test Method for Analysis of Low-Alloy Steels and Cast Irons by Wavelength Dispersive X-Ray Fluorescence Spectrometry

ASTM E322-12 Test Method for Analysis of Low-Alloy Steels and Cast Irons by Wavelength Dispersive X-Ray Fluorescence Spectrometry

ASTM E322-12 test method is comparative and intended for use as a routine method to test materials for compliance with compositional specifications.

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    This test method covers the X-ray fluorescence spectrometric analysis of low-alloy steels and cast irons for the Following elements in the ranges indicated.

    Elements Mass Fraction Range %
    Manganese 0.20 to 1.50
    Nickel 0.10 to 1.00
    Chromium 0.10 to 1.00
    Molybdenum 0.04 to 0.40
    Copper 0.05 to 0.30
    Vanadium 0.03 to 0.25

    Test procedure:

    The sample is finished to a clean, uniform surface, and then irradiated by an X-ray beam of high energy. The secondary x rays produced are dispersed by means of a crystal and the intensities are measured by a detector at selected wavelengths. The results are obtained by relating measured intensities to an appropriate calibration curve.

    Test specimen: 

    Low-alloy steel and cast iron material with the clean and flat surface using appropriate sander equipment with 240 grit or finer aluminum oxide abrasive paper.


    The mass fractions are determined from the prepared calibration curves.


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