ASTM WK68085

    Revision of D953 - 18 Standard Test Method for Pin-Bearing Strength of Plastics

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    Active Standard: D953 - 19

    Developed by Subcommittee: D20.18 | Committee D20 | Contact Staff Manager



    compression strength; pin-bearing strength; plastics;;


    The last sentence in section 6 states The nominal bearing pin diameter shall be the same as the thickness of the sample. Given that standard pultruded structural shapes typically have component thicknesses (webs, flanges, plates, etc.) between 1/8 and 3/4 and steel connection pins (i.e. bolts or fasteners) allowed are in the range of 3/8 to 1 thick, the concern is that to require that the test sample thickness to always be equal to the pin (i.e. bolt or fastener) diameter renders the protocol unfit for many varying pin and material thickness combinations.

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    Work Item Status

    Date Initiated:

    Technical Contact:
    Bhyrav Mutnuri