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
A341/A341M Test Method for Direct Current Magnetic Properties of Materials Using D-C Permeameters and the Ballistic Test Methods
A596/A596M Test Method for Direct-Current Magnetic Properties of Materials Using the Ballistic Method and Ring Specimens
A773/A773M Test Method for Direct Current Magnetic Properties of Low Coercivity Magnetic Materials Using Hysteresigraphs
A811 Specification for Soft Magnetic Iron Parts Fabricated by Powder Metallurgy Techniques
A839 Specification for Iron-Phosphorus Powder Metallurgy Parts for Soft Magnetic Applications
A904 Specification for 50 Nickel-50 Iron Powder Metallurgy Soft Magnetic Parts
A927/A927M Test Method for Alternating-Current Magnetic Properties of Toroidal Core Specimens Using the Voltmeter-Ammeter-Wattmeter Method
B215 Practices for Sampling Metal Powders
B243 Terminology of Powder Metallurgy
B312 Test Method for Green Strength of Specimens Compacted from Metal Powders
B331 Test Method for Compressibility of Metal Powders in Uniaxial Compaction
B438 Specification for Bronze-Base Powder Metallurgy (PM) Bearings (Oil-Impregnated)
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
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DOI: 10.1520/B0925-03
Citation Format
ASTM B925-03, Standard Practices for Production and Preparation of Powder Metallurgy (P/M) Test Specimens, ASTM International, West Conshohocken, PA, 2003, www.astm.org
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