1.1?This specification covers porous metallic sleeve, flange, thrust, and spherical bronze-base bearings that are produced from mixed metal powders utilizing powder metallurgy (PM) technology and then impregnated with oil to supply operating lubrication. 1.2?Included are the sp
ASTM B438-21 Referenced Document
ASTM B243 Standard Terminology of Powder Metallurgy
ASTM B439 Standard Specification for Iron-Base Powder Metallurgy (PM) Bearings (Oil-Impregnated)
ASTM B939 Standard Test Method for Radial Crushing Strength,
ASTM B946 Standard Test Methods for Surface Roughness of Powder Metallurgy (PM) Products
ASTM B962 Standard Test Methods for Density of Compacted or Sintered Powder Metallurgy (PM) Products Using Archimedes’ Principle
ASTM B963 Standard Test Methods for Oil Content, Oil-Impregnation Efficiency, and Surface-Connected Porosity of Sintered Powder Metallurgy (PM) Products Using Archimedes’ Principle
ASTM E1019 Standard Test Methods for Determination of Carbon, Sulfur, Nitrogen, and Oxygen in Steel and in Iron, Nickel, and Cobalt Alloys
ASTM E29 Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
ASTM E9 Standard Test Methods of Compression Testing of Metallic Materials at Room Temperature
ISO 2795 Plain bearings — Sintered bushes — Dimensions and tolerances