Active Standard ASTM B657 | Developed by Subcommittee: B09.06
Book of Standards Volume: 02.05
Historical (view previous versions of standard)
Significance and Use
The microstructure of a cemented carbide affects the material’mechanical and physical properties. This guide is not intended to be used as a specification for carbide grades. Producers and users may use the microstructural information as a guide in developing their own specifications.
1.1 This test method covers apparatus and procedures for the metallographic determination of microstructures in cemented tungsten carbides.
1.2 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Precautions applying to use of hazardous laboratory chemicals should be observed for chemicals specified in Table 1.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
B665 Guide for Metallographic Sample Preparation of Cemented Tungsten Carbides
ISO StandardISO4499 Hardmetals--Metallographic Determination of Microstructure
ICS Number Code 77.160 (Powder metallurgy)