ASTM B439-00

    Standard Specification for Iron-Base Sintered Bearings (Oil-Impregnated)

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    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 (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

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

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

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

    B963 Test Methods for Oil Content, Oil-Impregnation Efficiency, and Interconnected Porosity of Sintered Powder Metallurgy (PM) Products Using Archimedes Principle

    B966 Test Method for Permeability of Powder Metallurgy (PM) Bearings Using Nitrogen Gas

    B970 Test Method for Cleanliness of Powder Metallurgy (PM) Bearings and Structural Parts

    E9 Test Methods of Compression Testing of Metallic Materials at Room Temperature

    E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications

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

    MPIF Standard

    MPIFStandard35 Materials Standards for PM Self-Lubricating Bearings

    UNSPSC Code

    UNSPSC Code 23271805(Iron powder); 31171500(Bearings)

    DOI: 10.1520/B0439-00

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