ASTM E354-93 Chemical Analysis Iron, Nickel, and Cobalt Alloys

ASTM E354-93 Chemical Analysis Iron, Nickel, and Cobalt Alloys

The standard test methods for the chemical analysis of high-temperature, electrical, magnetic, and other similar iron, nickel, and cobalt alloys are covered under the ASTM E354-93 standard test. These test methods for the chemical analysis of metals and alloys are primarily intended as referee methods to test such materials for compliance with compositional specifications.

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    Scope:

    ASTM E354-93 standard method includes the test methods for chemical analysis of high-temperature iron, nickel, and cobalt alloys with demarcated chemical compositions. methanol. The test methods in this standard are contained under the sections as follows:

    Test MethodsSections
    Manganese by the Periodate Photometric Method (0.05 to 2.00%)8
    Phosphorus by the Molybdenum Blue Photometric Method (0.002 to 0.08%)18
    Sulfur by the Combustion-Iodate Titration Method (0.005 to 0.1%)37
    Silicon by the Gravimetric Method (0.05 to 5.00%)46
    Cobalt by the Ion-Exchange-Potentiometric Titration Method (2 to 75%)53
    Cobalt by the Nitroso-R-Salt Photometric Method (0.10 to 5.0 %)61
    Copper by the Sulfide Precipitation-Electrodeposition Gravimetric Method (0.01 to 10.00 %)71
    Carbon, Total, by the Combustion Gravimetric Method (0.05 to 1.10%)79
    Copper by Neocuproine Photometric Method (0.01 to 10.00 %)90
    Aluminium, Total, by the 8-Quinolinol Gravimetric Method (0.20 to7.00%)100
    Nickel by the Dimethylglyoxime Gravimetric Method (0.1 to 84.0%)135
    Tin by the Solvent Extraction–Atomic Absorption Method (0.002 to 0.10%)143
    Molybdenum by the Photometric Method (0.01 to 1.50%)153
    Chromium by the Atomic Absorption Method (0.006 to 1.00%)165
    Chromium by the Peroxydisulfate Oxidation—Titration Method(0.10 to 33.00 %)175
    Molybdenum by the Ion Exchange 8-Hydroxyquinoline Gravimetric Method (1.5 to 30 %)184
    Iron by the Silver Reduction Titrimetric Method (1.0 to 50.0%)192

    Results:

    Combustion gravimetric method is used determine the total carbon content. The sample is burned in a stream of oxygen, and the carbon dioxide in the evolved gases is collected in a suitable absorbent and weighed. The results obtained are as

    Test SpecimenPercent Carbon
    Monel-type alloy0.080
    High-speed steel0.81
    Nickel-base alloy1.49

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