Standard Test Method for Direct-Current Magnetic Properties of Materials Using the Point by Point (Ballistic) Method and Ring Specimens

Importancia y uso:

3.1 Test methods using suitable ring-type specimens4 are the preferred methods of determining the basic magnetic properties of a material caused by the absence of demagnetizing effects and are well suited for specification acceptance, service evaluation, and research and development.

3.2 Provided the test specimen is representative of the bulk material as is usually the case for thin strip and wire, this test is also suitable for design purposes.

3.3 When the test specimen is not necessarily representative of the bulk material such as a ring machined from a large forging or casting, the results of this test method may not be an accurate indicator of the magnetic properties of the bulk material. In such instances, the test results when viewed in context of past performance history will be useful for judging the suitability of the current material for the intended application.

Subcomité:

A06.01

Referida por:

B0925-15R22, A1126-23, A0773_A0773M-21, A0753-21, A0848-17, A0838-24, A0839-15R23, A0867-24, A0904-20, A0811-15R22, A0345-19, A0598_A0598M-02R22, A0801-21, A0341_A0341M-16R22

Volúmen:

03.07

Número ICS:

29.030 (Magnetic materials), 29.100.10 (Magnetic components)

Palabras clave:

ballistic test; d-c magnetic test; Epstein; hysteresis loop; magnetic field strength; magnetic flux density; normal magnetization curve; permeability;