ASTM B887-12
Standard Test Method for Determination of Coercivity (Hcs) of Cemented Carbides

Standard No.

ASTM B887-12

Release Date

2012

Published By

American Society for Testing and Materials (ASTM)

Status

Be replaced

Replace By

ASTM B887-12(2019)

Latest

ASTM B887-24

Scope

Measurement of coercivity provides a relative comparison of carbide grain size, binder content, and possibly carbon deficiency for a given graded carbide material or product, and may be employed as a non-destructive measurement indicating deviation from a specified norm.

This test method allows the non-destructive estimate of average carbide grain size in sintered cemented carbide hardmetals. It is appropriate for a wide range of compositions and tungsten carbide (WC) WC grain sizes, and can be used for acceptance of material or product to specification.

1.1 This test method covers the determination of magnetization coercivity (Hcs) of cemented carbide materials and products using coercive force instrumentation. It is patterned after ISO 3326.

1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.3 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.

ASTM B887-12 Referenced Document

• ASTM A340 Standard Terminology of Symbols and Definitions Relating to Magnetic Testing
• ASTM B243 Standard Terminology of Powder Metallurgy
• ASTM E177 Standard Practice for Use of the Terms Precision and Bias in ASTM Test Methods
• ASTM E691 Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
• ISO 3326 Hardmetals.Determination of (the magnetization) coercivity

ASTM B887-12 history

• 2024 ASTM B887-24 Standard Test Method for Determination of Coercivity (Hcs) of Cemented Carbides
• 0000 ASTM B887-20
• 2019 ASTM B887-12(2019) Standard Test Method for Determination of Coercivity (Hcs) of Cemented Carbides
• 2012 ASTM B887-12 Standard Test Method for Determination of Coercivity (Hcs) of Cemented Carbides
• 2003 ASTM B887-03(2008)e1 Standard Test Method for Determination of Coercivity (Hcs) of Cemented Carbides
• 2003 ASTM B887-03 Standard Test Method for Determination of Coercivity (Hcs) of Cemented Carbides
• 1998 ASTM B887-98 Standard Test Method for Determination of Coercivity (Hcs) of Cemented Carbides