Materials Characterization Services
Search for Analytical Techniques and Test Methods
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ASTM B311 – Standard Test Method for Density of Powder Metallurgy (PM) Materials Containing Less Than Two Percent Porosity Description: Significance and Use 5.1 For PM materials containing less than two percent porosity, a density measurement may be used to determine if the part has been densified, either overall or in a critical region, to the …
ASTM B294 – Standard Test Method for Hardness Testing of Cemented Carbides Description: Significance and Use 3.1 Rockwell hardness testing is one of the more important methods used to evaluate cemented carbides. For compositional groups of cemented carbides, hardness is an indication of wear resistance and toughness. Lower hardness grades usually indicate less wear resistance but …
ASTM B279 – Standard Test Method for Stiffness of Bare Soft Square and Rectangular Copper and Aluminum Wire for Magnet Wire Fabrication Description: Significance and Use 3.1 This test method is designed as an inspection or acceptance test of new bare soft square and rectangular wire intended for subsequent fabrication into magnet wire. NOTE 1: Since the …
ASTM B277 – Standard Test Method for Hardness of Electrical Contact Materials Description: Significance and Use 3.1 The Rockwell hardness and Rockwell superficial tests are useful when the test specimens are sufficiently thick (in relation to the indentor load) to ensure that the results are not affected by the flow of metal on the surface of …
ASTM B276 – Standard Test Method for Apparent Porosity in Cemented Carbides Description: Significance and Use 4.1 Cemented carbide materials may contain small voids that, depending on the application, may affect the performance of the product. To assist users in specifying the maximum acceptable level of porosity, this test method illustrates a broad range of porosity …
ASTM B263 – Standard Test Method for Determination of Cross-Sectional Area of Stranded Conductors Description: Abstract This test method covers the standard procedure for determining the cross-sectional area of stranded conductors by the mass method. The apparatus shall consist of a balance for mass measurement, a steel scale for length measurement, and a jig or …
ASTM B244 – Standard Test Method for Measurement of Thickness of Anodic Coatings on Aluminum and of Other Nonconductive Coatings on Nonmagnetic Basis Metals with Eddy-Current Instruments Description: Significance and Use 5.1 The thickness of a coating is often critical to its performance. This eddy-current method is nondestructive and is suitable for measuring the thickness of …
ASTM B23 – Standard Specification for White Metal Bearing Alloys (Known Commercially as “Babbitt Metal”) Description: Abstract This specification deals with eight typical white metal bearing alloys, in bar or ingot form, known commercially as “Babbitt metal.” Covered in this specification are tin-based alloys, namely, UNS-L13910 (alloy no. 1), UNS-L13890 (alloy no. 2), UNS-L13840 (alloy …
ASTM B331 – Standard Test Method for Compressibility of Metal Powders in Uniaxial Compaction Description: Significance and Use 5.1 The compressibility value obtained by this test is a measure of a material characteristic of the powder. 5.2 The test method is useful in research and development projects, as a quality control test in the evaluation and manufacturing …
ASTM B330 – Standard Test Methods for Estimating Average Particle Size of Metal Powders and Related Compounds Using Air Permeability Description: Significance and Use 4.1 These test methods provide procedures for determining the envelope-specific surface area of powders, from which is calculated an “average” particle diameter, assuming the particles are monosize, smooth surface, nonporous, spherical particles. …
