ASTM B439-00e1 - 10.10.2000
 
1. Scope

1.1 This specification covers sintered metal powder, oil-impregnated, bearings of four iron-base compositional grades:
Grades 1 and 2--iron-carbon
Grades 3 and 4--iron-copper

1.2 The values stated in inch-pound units are to be regarded as the standard. The metric equivalents of inch-pound units may be approximate.

 
2. Referenced Documents

B966-10

Standard Test Method for Permeability of Powder Metallurgy (PM) Bearings Using Nitrogen Gas (Withdrawn 2015)

B939-21(2025)

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

E9-19(2025)e1

Standard Test Methods of Compression Testing of Metallic Materials at Room Temperature (Includes all amendments and changes 4/29/2025).

MPIF Standard 35

Materials Standards for PM Self-Lubricating Bearings

E1019-24

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

B962-23

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

B970-09

Standard Test Method for Cleanliness of Powder Metallurgy (PM) Bearings and Structural Parts (Withdrawn 2016)

B438-25

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

B243-26a

Standard Terminology of Powder Metallurgy (Includes all amendments and changes 6/8/2026).

B963-24

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

E29-22

Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications