1、Designation:B88315Standard Specification forMetal Injection Molded(MIM)Materials1This standard is issued under the fixed designation B883;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 parenthes
2、es indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope*1.1 This specification covers ferrous metal injection moldedmaterials fabricated by mixing elemental or pre-alloyed metalpowders with binders,injecting into a mo
3、ld,debinding,andsintering,with or without subsequent heat treatment.1.2 This specification covers the following injection moldedmaterials.1.2.1 Compositions:1.2.1.1 MIM-2200,low-alloy steel1.2.1.2 MIM-2700,low-alloy steel1.2.1.3 MIM-4605,low-alloy steel1.2.1.4 MIM-4140,low-alloy steel1.2.1.5 MIM-316
4、L,austenitic stainless steel1.2.1.6 MIM-17-4 PH,precipitation hardening stainlesssteel1.2.1.7 MIM-420,ferritic stainless steel1.2.1.8 MIM-430L,ferritic stainless steel1.2.1.9 MIM-Cu,copper1.3 Chemical composition limits are specified in Table 1.1.4 With the exception of the values for density and th
5、emass used to determine density,for which the use of the gramper cubic centimetre(g/cm3)and gram(g)units is the long-standing industry practice,the values in inch-pound units are tobe regarded as standard.The values given in parentheses or inseparate tables are mathematical conversions to SI units t
6、hatare provided for information only and are not consideredstandard.1.5 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the appl
7、ica-bility of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2B243 Terminology of Powder MetallurgyB311 Test Method for Density of Powder Metallurgy(PM)Materials Containing Less Than Two Percent PorosityB933 Test Method for Microindentation Hardness of PowderMetallurgy(
8、PM)MaterialsB962 Test Methods for Density of Compacted or SinteredPowder Metallurgy(PM)Products Using ArchimedesPrincipleE8 Test Methods for Tension Testing of Metallic MaterialsE18 Test Methods for Rockwell Hardness of Metallic Ma-terialsE228 Test Method for Linear Thermal Expansion of SolidMateria
9、ls With a Push-Rod DilatometerE350 Test Methods for Chemical Analysis of Carbon Steel,Low-Alloy Steel,Silicon Electrical Steel,Ingot Iron,andWrought IronE415 Test Method for Analysis of Carbon and Low-AlloySteel by Spark Atomic Emission SpectrometryE1019 Test Methods for Determination of Carbon,Sulf
10、ur,Nitrogen,and Oxygen in Steel,Iron,Nickel,and CobaltAlloys by Various Combustion and Fusion TechniquesE1086 Test Method forAnalysis ofAustenitic Stainless Steelby Spark Atomic Emission SpectrometryE1461 Test Method for Thermal Diffusivity by the FlashMethodE1621 Guide for Elemental Analysis by Wav
11、elength Disper-sive X-Ray Fluorescence SpectrometryF1089 Test Method for Corrosion of Surgical Instruments2.2 MPIF Standards:3MPIF Standard 35 Materials Standards for Metal InjectionMolded PartsMPIF Standard 50 Method for Preparing and EvaluatingMetal Injection Molded(MIM)Debound and Sintered/Heat T
12、reated Tension Test SpecimensMPIF Standard 51 Method for Determination of Microin-dentation Hardness of Powder Metallurgy Materials1This specification is under the jurisdiction of ASTM Committee B09 on MetalPowders and Metal Powder Products and is the direct responsibility of B09.11 onNear Full Dens
13、ity Powder Metallurgy Materials.Current edition approved Oct.1,2015.Published November 2015.Originallyapproved in 1997.Last previous edition approved in 2010 as B883 101.DOI:10.1520/B0883-15.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at service
14、astm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.3Available from Metal Powder Industries Federation(MPIF),105 College Rd.East,Princeton,NJ 08540-6692,http:/www.mpif.org.*A Summary of Changes section appears at the end of thi
15、s standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 MPIF Standard 59 Method for Determination of CharpyImpact Energy of Unnotched Metal Injection Molded(MIM)Test SpecimensMPIF Standard 62 Method for Determination of the Corro-sion R
16、esistance of MIM Grades of Stainless Steel Im-mersed in 2%Sulfuric Acid SolutionMPIF Standard 63 Method for Density Determination ofMetal Injection Molded(MIM)Components(Gas Pyc-nometer)3.Terminology3.1 Definitions:3.1.1 Definitions of powder metallurgy terms can be foundin Terminology B243.Additional descriptive information isavailable in the Related Material Section of Vol.02.05 of theAnnual Book of ASTM Standards.4.Ordering Information4.1 Orders for parts conforming to this specification mayi
