ASTM's metallic coating standards are instrumental in the evaluation and examination of the physical, chemical, mechanical, and metallurgical properties of metallic powders intended for use as coating material. These standards help to identify characteristics such as density, particle size, compressibility, rupture strength, and surface finish among others. Also, these metallic coating standards allow powder metallurgy laboratories, and other companies that deal with metallic powder coatings to appropriately test them for the chemical and mechanical qualities to which they should conform.

Metallic Coating Standards

ASTM's metallic coating standards are instrumental in the evaluation and examination of the physical, chemical, mechanical, and metallurgical properties of metallic powders intended for use as coating material. These standards help to identify characteristics such as density, particle size, compressibility, rupture strength, and surface finish among others. Also, these metallic coating standards allow powder metallurgy laboratories, and other companies that deal with metallic powder coatings to appropriately test them for the chemical and mechanical qualities to which they should conform.

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Base Metal Powders

B331-20 Standard Test Method for Compressibility of Metal Powders in Uniaxial Compaction

B822-20 Standard Test Method for Particle Size Distribution of Metal Powders and Related Compounds by Light Scattering

E194-20 Standard Test Method for Acid-Insoluble Content of Copper and Iron Powders

B215-20 Standard Practices for Sampling Metal Powders

B610-19 Standard Test Method for Measuring Dimensional Changes Associated with Processing Metal Powders Intended for Die Compaction

B964-16 Standard Test Methods for Flow Rate of Metal Powders Using the Carney Funnel

B821-10(2016) Standard Guide for Liquid Dispersion of Metal Powders and Related Compounds for Particle Size Analysis

B873-21 Standard Test Method for Measuring Volume of Apparent Density Cup Used in Test Methods B212, B329, and B417

B703-21 Standard Test Method for Apparent Density of Metal Powders and Related Compounds Using the Arnold Meter

B212-21 Standard Test Method for Apparent Density of Free-Flowing Metal Powders Using the Hall Flowmeter Funnel

B213-20 Standard Test Methods for Flow Rate of Metal Powders Using the Hall Flowmeter Funnel

B312-20 Standard Test Method for Green Strength of Specimens Compacted from Metal Powders

B925-15(2022) Standard Practices for Production and Preparation of Powder Metallurgy (PM) Test Specimens

B214-22 Standard Test Method for Sieve Analysis of Metal Powders

B855-22 Standard Test Method for Volumetric Flow Rate of Metal Powders Using the Arnold Meter and Hall Flowmeter Funnel

B417-22 Standard Test Method for Apparent Density of Non-Free-Flowing Metal Powders Using the Carney Funnel

E159-22 Standard Test Method for Loss of Mass in a Reducing Gas Atmosphere for Cobalt, Copper, Tungsten, and Iron Powders (Hydrogen Loss)

Bearings

B612-00 Standard Specification for Iron Bronze Sintered Bearings (Oil-Impregnated) (Withdrawn 2007)

B782-00 Standard Specification for Iron Graphite Sintered Bearings (Oil-Impregnated) (Withdrawn 2007)

B970-09 Standard Test Method for Cleanliness of Powder Metallurgy (PM) Bearings and Structural Parts (Withdrawn 2016)

B966-10 Standard Test Method for Permeability of Powder Metallurgy (PM) Bearings Using Nitrogen Gas (Withdrawn 2015)

B439-21 Standard Specification for Iron-Base Powder Metallurgy (PM) Bearings (Oil-Impregnated)

B438-21 Standard Specification for Bronze-Base Powder Metallurgy (PM) Bearings (Oil-Impregnated)

B939-21 Standard Test Method for Radial Crushing Strength, K, of Powder Metallurgy (PM) Bearings and Structural Materials

B962-17 Standard Test Methods for Density of Compacted or Sintered Powder Metallurgy (PM) Products Using Archimedes’ Principle

B328-96(2003)e1 Standard Test Method for Density, Oil Content, and Interconnected Porosity of Sintered Metal Structural Parts and Oil-Impregnated Bearings (Withdrawn 2009)

B963-22 Standard Test Methods for Oil Content, Oil-Impregnation Efficiency, and Surface-Connected Porosity of Sintered Powder Metallurgy (PM) Products Using Archimedes’ Principle

Cemented Carbides

B406-96(2021) Standard Test Method for Transverse Rupture Strength of Cemented Carbides

B657-18 Standard Guide for Metallographic Identification of Microstructure in Cemented Carbides

B887-12(2019) Standard Test Method for Determination of Coercivity (Hcs) of Cemented Carbides

B886-19 Standard Test Method for Determination of Magnetic Saturation (Ms) of Cemented Carbides

B665-19 Standard Guide for Metallographic Sample Preparation of Cemented Tungsten Carbides

B771-11(2021) Standard Test Method for Short Rod Fracture Toughness of Cemented Carbides

B930-03(2021) Standard Test Method for Rating Grain Size and Frequency of Abnormally Large Grains in Cemented Tungsten Carbides (Hardmetals)

B390-92(2006) Standard Practice for Evaluating Apparent Grain Size and Distribution of Cemented Tungsten Carbides (Withdrawn 2010)

B890-20 Standard Test Method for Determination of Metallic Constituents of Tungsten Alloys and Tungsten Hardmetals by X-Ray Fluorescence Spectrometry

B276-21 Standard Test Method for Apparent Porosity in Cemented Carbides

B294-22 Standard Test Method for Hardness Testing of Cemented Carbides

Near Full Density Powder Metallurgy Materials

B797-20 Standard Test Method for Surface Finger-Oxide Penetration Depth and Presence of Interparticle Oxide Networks in Powder Forged (PF) Steel Parts

B853-16(2021)e1 Standard Specification for Powder Metallurgy (PM) Boron Stainless Steel Structural Components

B848/B848M-21 Standard Specification for Powder Forged (PF) Ferrous Materials

B883-19 Standard Specification for Metal Injection Molded (MIM) Materials

B817-08 Standard Specification for Powder Metallurgy (PM) Titanium Alloy Structural Components (Withdrawn 2013)

B796-20 Standard Test Method for Nonmetallic Inclusion Content of Ferrous Powders Intended for Powder Forging (PF) Applications

B795-20 Standard Test Method for Determining the Percentage of Alloyed or Unalloyed Iron Contamination Present in Powder Forged (PF) Steel Materials

B311-22 Standard Test Method for Density of Powder Metallurgy (PM) Materials Containing Less Than Two Percent Porosity

B988-18(2022) Standard Specification for Powder Metallurgy (PM) Titanium and Titanium Alloy Structural Components

Nomenclature and Technical Data

B243-22 Standard Terminology of Powder Metallurgy

Refractory Metal Powders

B859-21 Standard Practice for De-Agglomeration of Refractory Metal Powders and Their Compounds Prior to Particle Size Analysis

B761-17(2021) Standard Test Method for Particle Size Distribution of Metal Powders and Related Compounds by X-Ray Monitoring of Gravity Sedimentation

B329-20 Standard Test Method for Apparent Density of Metal Powders and Compounds Using the Scott Volumeter

B430-97(2006)e1 Standard Test Method for Particle Size Distribution of Refractory Metal Powders and Related Compounds by Turbidimetry (Withdrawn 2011)

B330-20 Standard Test Methods for Estimating Average Particle Size of Metal Powders and Related Compounds Using Air Permeability

B527-22 Standard Test Method for Tap Density of Metal Powders and Compounds

B922-22 Standard Test Method for Metal Powder Specific Surface Area by Physical Adsorption

B923-22 Standard Test Method for Metal Powder Skeletal Density by Helium or Nitrogen Pycnometry

Structural Parts

B255-83a(1995)e1 Standard Specification for Sintered Bronze Structural Parts (Withdrawn 2000)

B721-91(1999) Standard Test Method for Microhardness and Case Depth of Powder Metallurgy (P/M) Parts (Withdrawn 2004)

B933-20 Standard Test Method for Microindentation Hardness of Powder Metallurgy (PM) Materials

B935-20 Standard Guide for Steam Treatment of Ferrous Powder Metallurgy (PM) Materials

B783-19 Standard Specification for Materials for Ferrous Powder Metallurgy (PM) Structural Parts

B595-21 Standard Specification for Materials for Aluminum Powder Metallurgy (PM) Structural Parts

B934-21 Standard Test Method for Effective Case Depth of Ferrous Powder Metallurgy (PM) Parts Using Microindentation Hardness Measurements

B946-11(2016) Standard Test Method for Surface Finish of Powder Metallurgy (PM) Products

B931-14(2018)e1 Standard Test Method for Metallographically Estimating the Observed Case Depth of Ferrous Powder Metallurgy (PM) Parts

B823-20 Standard Specification for Materials for Copper Base Powder Metallurgy (PM) Structural Parts

B715-96(2001) Standard Specification for Sintered Copper Structural Parts for Electrical Conductivity Applications (Withdrawn 2010)

B895-16(2020)e1 Standard Test Methods for Evaluating the Corrosion Resistance of Stainless Steel Powder Metallurgy (PM) Parts/Specimens by Immersion in a Sodium Chloride Solution

B528-16(2020)e1 Standard Test Method for Transverse Rupture Strength of Powder Metallurgy (PM) Specimens