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 Methods	Sections
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 Specimen	Percent Carbon
Monel-type alloy	0.080
High-speed steel	0.81
Nickel-base alloy	1.49

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