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  • ASTM
    B887-12 Standard Test Method for Determination of Coercivity (Hcs) of Cemented Carbides
    Edition: 2012
    $91.10
    Unlimited Users per year

Description of ASTM-B887 2012

ASTM B887 - 12

Standard Test Method for Determination of Coercivity (Hcs) of Cemented Carbides

Active Standard ASTM B887 | Developed by Subcommittee: B09.06

Book of Standards Volume: 02.05




ASTM B887

Significance and Use

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. Scope

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.


2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

ISO Standard

ISO3326 Hardmetals - Determination of (the Magnetization) Coercivity

ASTM Standards

A340 Terminology of Symbols and Definitions Relating to Magnetic Testing

B243 Terminology of Powder Metallurgy

E177 Practice for Use of the Terms Precision and Bias in ASTM Test Methods

E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method


Keywords

cemented carbide; coercive force; coercivity; magnetization;


ICS Code

ICS Number Code 77.160 (Powder metallurgy)


DOI: 10.1520/B0887-12

ASTM International is a member of CrossRef.

ASTM B887

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About ASTM

ASTM International, formerly known as the American Society for Testing and Materials (ASTM), is a globally recognized leader in the development and delivery of international voluntary consensus standards. Today, some 12,000 ASTM standards are used around the world to improve product quality, enhance safety, facilitate market access and trade, and build consumer confidence. ASTM’s leadership in international standards development is driven by the contributions of its members: more than 30,000 of the world’s top technical experts and business professionals representing 150 countries. Working in an open and transparent process and using ASTM’s advanced electronic infrastructure, ASTM members deliver the test methods, specifications, guides, and practices that support industries and governments worldwide.
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