ASTM_B_925_-_15.pdf

Designation:B92515Standard Practices forProduction and Preparation of Powder Metallurgy(PM)TestSpecimens1This standard is issued under the fixed designation B925;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope*1.1 These standard practices cover the specifications forthose uniaxially compacted test specimens that are used inASTM standards,the procedures for producing and preparingthese test specimens,and reference the applicable standards.1.2 Basic tool design and engineering information regardingthe tooling that is required to compact the test specimens andmachining blanks are contained in the annexes.1.3 This standard is intended to be a comprehensive one-source document that can be referenced byASTM test methodsthat utilize PM test specimens and in ASTM PM materialspecifications that contain the engineering data obtained fromthese test specimens.1.4 These practices are not applicable to metal powder testspecimens that are produced by other processes such as coldisostatic pressing(CIP),hot isostatic pressing(HIP),powderforging(PF)or metal injection molding(MIM).They do notpertain to cemented carbide materials.1.5 Detailed information on PM presses,compacting tool-ing and sintering furnaces,their design,manufacture and useare not within the scope of these practices.1.6 The values stated in inch-pound units are to be regardedas standard.The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.1.7 This standard may involve hazardous materials,operations,and equipment.This standard does not purport toaddress all of the safety concerns,if any,associated with itsuse.It is the responsibility of the user of this standard toestablish appropriate safety and health practices and deter-mine the applicability of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2A34/A34M Practice for Sampling and Procurement Testingof Magnetic MaterialsA341/A341M Test Method for Direct Current MagneticProperties of Materials Using D-C Permeameters and theBallistic Test MethodsA596/A596M Test Method for Direct-Current MagneticProperties of Materials Using the Ballistic Method andRing SpecimensA773/A773M Test Method for Direct Current MagneticProperties of Low Coercivity Magnetic Materials UsingHysteresigraphsA811 Specification for Soft Magnetic Iron Parts Fabricatedby Powder Metallurgy TechniquesA839 Specification for Iron-Phosphorus Powder MetallurgyParts for Soft Magnetic ApplicationsA904 Specification for 50 Nickel-50 Iron Powder Metal-lurgy Soft Magnetic PartsA927/A927M Test Method for Alternating-Current Mag-netic Properties of Toroidal Core Specimens Using theVoltmeter-Ammeter-Wattmeter MethodB215 Practices for Sampling Metal PowdersB243 Terminology of Powder MetallurgyB312 Test Method for Green Strength of Specimens Com-pacted from Metal PowdersB331 Test Method for Compressibility of Metal Powders inUniaxial CompactionB438 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 Pow-der Metallurgy(PM)SpecimensB595 Specification for Sintered Aluminum Structural PartsB610 Test Method for Measuring Dimensional ChangesAssociated with Processing Metal Powders1This practice is under the jurisdiction of ASTM Committee B09 on MetalPowders and Metal Powder Products and is the direct responsibility of Subcom-mittee B09.02 on Base Metal Powders.Current edition approved April 15,2015.Published May 2015.Originallyapproved in 2003.Last previous edition approved in 2008 as B925 08.DOI:10.1520/B0925-15.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 B783 Specification for Materials for Ferrous Powder Metal-lurgy(PM)Structural PartsB817 Specification for Powder Metallurgy(PM)TitaniumAlloy Structural Components(Withdrawn 2013)3B823 Specification for Materials for Copper Base PowderMetallurgy(PM)Structural PartsB853 Specification for Powder Metallurgy(PM)BoronStainless Steel Structural ComponentsB939 Test Method for Radial Crushing Strength,K,ofPowder Metallurgy(PM)Bearings and Structural Materi-alsB962 Test Methods for Density of Compacted or SinteredPowder Metallurgy(PM)Products Using ArchimedesPrincipleB963 Test Methods for Oil Content,Oil-ImpregnationEfficiency,and Surface-Connected Po