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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.
126.96.36.199 MIM-2200, low-alloy steel
188.8.131.52 MIM-2700, low-alloy steel
184.108.40.206 MIM-4605, low-alloy steel
220.127.116.11 MIM-4140, low-alloy steel
18.104.22.168 MIM-316L, austenitic stainless steel
22.214.171.124 MIM-17-4 PH, precipitation hardening stainless steel
126.96.36.199 MIM-420, ferritic stainless steel
188.8.131.52 MIM-430L, ferritic stainless steel
1.3 Chemical composition limits are specified in Table 1.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
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
E18 Test Methods for Rockwell Hardness of Metallic Materials
E350 Test Methods for Chemical Analysis of Carbon Steel, Low-Alloy Steel, Silicon Electrical Steel, Ingot Iron, and Wrought Iron
E415 Test Method for Atomic Emission Vacuum Spectrometric Analysis of Carbon and Low-Alloy Steel
E1019 Test Methods for Determination of Carbon, Sulfur, Nitrogen, and Oxygen in Steel, Iron, Nickel, and Cobalt Alloys by Various Combustion and Fusion Techniques
E1086 Test Method for Atomic Emission Vacuum Spectrometric Analysis of Stainless Steel by Point-to-Plane Excitation Technique
E1621 Guide for X-Ray Emission Spectrometric Analysis
F1089 Test Method for Corrosion of Surgical Instruments
MPIF StandardsMPIFStandard35 Material Standards for Metal Injection Molded Parts MPIFStandard50 Method for Preparing and Evaluating Metal Injection Molded (MIM) Debound and Sintered/Heat Treated Tension Test Specimens MPIFStandard51 Method for Determination of Microindentation Hardness of Powder Metallurgy Materials MPIFStandard59 Method for Determination of Charpy Impact Energy of Unnotched Metal Injection Molded (MIM) Test Specimens MPIFStandard62 Method for Determination of the Corrosion Resistance of MIM Grades of Stainless Steel Immersed in 2 % Sulfuric Acid Solution MPIFStandard63 Method for Density Determination of Metal Injection Molded (MIM) Components (Gas Pycnometer)
ICS Number Code 77.140.80 (Iron and steel castings); 77.160 (Powder metallurgy)
UNSPSC Code 11171600(Stainless steel alloys)