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    ASTM B925-03

    Standard Practices for Production and Preparation of Powder Metallurgy (P/M) Test Specimens

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    1. Scope

    1.1 These standard practices cover the specifications for those uniaxially compacted test specimens that are used in ASTM standards, the procedures for producing and preparing these test specimens, and reference the applicable standards.

    1.2 Basic tool design and engineering information regarding the tooling that is required to compact the test specimens and machining blanks are contained in the annexes.

    1.3 This standard is intended to be a comprehensive one-source document that can be referenced by ASTM test methods that utilize P/M test specimens and in ASTM P/M material specifications that contain the engineering data obtained from these test specimens.

    1.4 These practices are not applicable to metal powder test specimens that are produced by other processes such as cold isostatic pressing (CIP), hot isostatic pressing (HIP), powder forging (P/F) or metal injection molding (MIM). They do not pertain to cemented carbide materials.

    1.5 Detailed information on P/M presses, compacting tooling and sintering furnaces, their design, manufacture and use are not within the scope of these practices.

    1.6 Test specimen and die cavity dimensions shown in inch-pound units are to be regarded as standard and are applicable to the referenced ASTM test methods and material specifications. Values in SI units are shown in parentheses and result from conversion in accordance with IEEE/ASTM Standard SI-10. They may be approximate and are only for information.

    1.7 This standard may involve hazardous materials, operations, and equipment. 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.

    ASTM Standards

    A34/A34M Practice for Sampling and Procurement Testing of Magnetic Materials

    B439 Specification for Iron-Base Powder Metallurgy (PM) Bearings (Oil-Impregnated)

    B528 Test Method for Transverse Rupture Strength of Powder Metallurgy (PM) Specimens

    B595 Specification for Sintered Aluminum Structural Parts

    B610 Test Method for Measuring Dimensional Changes Associated with Processing Metal Powders

    B783 Specification for Materials for Ferrous Powder Metallurgy (PM) Structural Parts

    B817 Specification for Powder Metallurgy (PM) Titanium Alloy Structural Components

    B823 Specification for Materials for Copper Base Powder Metallurgy (PM) Structural Parts

    B853 Specification for Powder Metallurgy (PM) Boron Stainless Steel Structural Components

    B939 Test Method for Radial Crushing Strength, K, of Powder Metallurgy (PM) Bearings and Structural Materials

    B962 Test Methods for Density of Compacted or Sintered Powder Metallurgy (PM) Products Using Archimedes Principle

    B963 Test Methods for Oil Content, Oil-Impregnation Efficiency, and Surface-Connected Porosity of Sintered Powder Metallurgy (PM) Products Using Archimedes Principle

    E8 Test Methods for Tension Testing of Metallic Materials

    E9 Test Methods of Compression Testing of Metallic Materials at Room Temperature

    E18 Test Methods for Rockwell Hardness of Metallic Materials

    E23 Test Methods for Notched Bar Impact Testing of Metallic Materials

    E228 Test Method for Linear Thermal Expansion of Solid Materials With a Push-Rod Dilatometer

    E1876 Test Method for Dynamic Youngs Modulus, Shear Modulus, and Poissons Ratio by Impulse Excitation of Vibration

    MPIF Standard

    Standard 56 Method for Determination of Rotating Beam Fatigue Endurance Limit in Powder Metallurgy Materials Available from MPIF, 105 College Road East, Princeton, NJ 08540.

    ICS Code

    ICS Number Code 77.160 (Powder metallurgy)

    UNSPSC Code

    UNSPSC Code

    Referencing This Standard

    DOI: 10.1520/B0925-03

    ASTM International is a member of CrossRef.

    Citation Format

    ASTM B925-03, Standard Practices for Production and Preparation of Powder Metallurgy (P/M) Test Specimens, ASTM International, West Conshohocken, PA, 2003,

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