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    ASTM B883-10e1

    Standard Specification for Metal Injection Molding (MIM) Ferrous Materials

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    1. Scope

    1.1 This specification covers ferrous metal injection molded materials fabricated by mixing elemental or pre-alloyed metal powders with binders, injecting into a mold, debinding, and sintering, with or without subsequent heat treatment.

    1.2 This specification covers the following injection molded materials.

    1.2.1 Compositions:

    1.2.1.1 MIM-2200, low-alloy steel

    1.2.1.2 MIM-2700, low-alloy steel

    1.2.1.3 MIM-4605, low-alloy steel

    1.2.1.4 MIM-4140, low-alloy steel

    1.2.1.5 MIM-316L, austenitic stainless steel

    1.2.1.6 MIM-17-4 PH, precipitation hardening stainless steel

    1.2.1.7 MIM-420, ferritic stainless steel

    1.2.1.8 MIM-430L, ferritic stainless steel

    1.3 Chemical composition limits are specified in Table 1.

    TABLE 1 Chemical Composition Requirements For Metal Injection Molded Materials

    Material
    Designation

     

    Fe

    Ni

    Cr

    Co

    Mo

    C

    Cu

    Si

    Mn

    Nb + Ta

    V

    Other

    MIM-2200

    Min.

    Bal.

    1.5

    -

    -

    -

    -

    -

    -

    -

    -

    -

    -

     

    Max.

    Bal.

    2.5

    -

    -

    0.5

    0.1

    -

    1.0

    -

    -

    -

    1.0

     

     

     

     

     

     

     

     

     

     

     

     

     

     

    MIM-2700

    Min.

    Bal.

    6.5

    -

    -

    -

    -

    -

    -

    -

    -

    -

    -

     

    Max.

    Bal.

    8.5

    -

    -

    0.5

    0.1

    -

    1.0

    -

    -

    -

    1.0

     

     

     

     

     

     

     

     

     

     

     

     

     

     

    MIM-4605

    Min.

    Bal.

    1.5

    -

    -

    0.2

    0.4

    -

    -

    -

    -

    -

    -

     

    Max.

    Bal.

    2.5

    -

    -

    0.5

    0.6

    -

    1.0

    -

    -

    -

    1.0

     

     

     

     

     

     

     

     

     

     

     

     

     

     

    MIM-4140

    Min.

    Bal.

    -

    0.8

    -

    0.2

    0.3

    -

    -

    -

    -

    -

    -

     

    Max.

    Bal.

    -

    1.2

    -

    0.3

    0.5

    -

    0.6

    1.0

    -

    -

    1.0

     

     

     

     

     

     

     

     

     

     

     

     

     

     

    MIM-316L

    Min.

    Bal.

    10

    16

    -

    2

    -

    -

    -

    -

    -

    -

    -

     

    Max.

    Bal.

    14

    18

    -

    3

    0.03

    -

    1.0

    2.0

    -

    -

    1.0

     

     

     

     

     

     

     

     

     

     

     

     

     

     

    MIM-420

    Min.

    Bal.

    -

    12

    -

    -

    0.15

    -

    -

    -

    -

    -

    -

     

    Max.

    Bal.

    -

    14

    -

    -

    0.4

    -

    1.0

    1.0

    -

    -

    1.0

     

     

     

     

     

     

     

     

     

     

     

     

     

     

    MIM-430L

    Min.

    Bal.

    -

    16

    -

    -

    -

    -

    -

    -

    -

    -

    -

     

    Max.

    Bal.

    -

    18

    -

    -

    0.05

    -

    1.0

    1.0

    -

    -

    1.0

     

     

     

     

     

     

     

     

     

     

     

     

     

     

    MIM-17-4PH

    Min.

    Bal.

    3

    15.5

    -

    -

    -

    3

    -

    -

    0.15

    -

    -

     

    Max.

    Bal.

    5

    17.5

    -

    -

    0.07

    5

    1.0

    1.0

    0.45

    -

    1.0



    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

    B243 Terminology of Powder Metallurgy

    B311 Test Method for Density of Powder Metallurgy (PM) Materials Containing Less Than Two Percent Porosity

    B933 Test Method for Microindentation Hardness of Powder Metallurgy (PM) Materials

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

    E8 Test Methods for Tension Testing of Metallic Materials [Metric] E0008_E0008M

    E18 Test Methods for Rockwell Hardness of Metallic Materials

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

    E350 Test Methods for Chemical Analysis of Carbon Steel, Low-Alloy Steel, Silicon Electrical Steel, Ingot Iron, and Wrought Iron

    E415 Test Method for Analysis of Carbon and Low-Alloy Steel by Spark Atomic Emission Spectrometry

    E1019 Test Methods for Determination of Carbon, Sulfur, Nitrogen, and Oxygen in Steel, Iron, Nickel, and Cobalt Alloys by Various Combustion and Inert Gas Fusion Techniques

    E1086 Test Method for Analysis of Austenitic Stainless Steel by Spark Atomic Emission Spectrometry

    E1461 Test Method for Thermal Diffusivity by the Flash Method

    E1621 Guide for Elemental Analysis by Wavelength Dispersive X-Ray Fluorescence Spectrometry

    F1089 Test Method for Corrosion of Surgical Instruments

    MPIF Standards

    MPIF Standard 50 Method for Preparing and Evaluating Metal Injection Molded (MIM) Debound and Sintered/Heat Treated Tension Test Specimens

    MPIF Standard 51 Method for Determination of Microindentation Hardness of Powder Metallurgy Materials

    MPIF Standard 59 Method for Determination of Charpy Impact Energy of Unnotched Metal Injection Molded (MIM) Test Specimens

    MPIF Standard 62 Method for Determination of the Corrosion Resistance of MIM Grades of Stainless Steel Immersed in 2% Sulfuric Acid Solution

    MPIF Standard 63 Method for Density Determination of Metal Injection Molded (MIM) Components (Gas Pycnometer)

    ICS Code

    ICS Number Code 77.140.80 (Iron and steel castings); 77.160 (Powder metallurgy)

    Referencing This Standard
    Link Here
    Link to Active (This link will always route to the current Active version of the standard.)

    DOI: 10.1520/B0883-10E01

    Citation Format

    ASTM B883-10e1, Standard Specification for Metal Injection Molding (MIM) Ferrous Materials, ASTM International, West Conshohocken, PA, 2010, www.astm.org

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