Download ASTM C 497.pdf PDF

TitleASTM C 497.pdf
Tags Pipe (Fluid Conveyance) Accuracy And Precision Ultimate Tensile Strength
File Size104.9 KB
Total Pages9
Document Text Contents
Page 3

extend the full length or any portion of the length of the
specimen. Fig. 5
4.3.4 The lower bearings shall consist of wood or hard

rubber strips. Wooden strips shall be straight, have a cross

section of not less than 2 in. in width and not less than 1 in. nor
more than 11⁄2 in. in height and shall have the top inside corners
rounded to a radius of1⁄2 in. Hard rubber strips shall have a
durometer hardness of not less than 45 nor more than 60. They
shall be rectangular in cross section, having a width of not less
than 2 in., a thickness of not less than 1 in. nor more than 11⁄2
in., and shall have the top inside corner rounded to a radius of
1⁄2 in.

4.3.5 The lower bearing strips shall be fastened to a wooden
or steel beam or directly to a concrete base, any of which shall
provide sufficient rigidity to permit application of maximum
load without deflection greater than1⁄720 of the specimen
length. The rigid base shall be at least 6 in. wide. The interior
vertical sides of the strips shall be parallel and spaced a

NOTE 1—The figure illustrates a method of applying the load to the pipe.
FIG. 3 Three-Edge-Bearing Test, Horizontal Elliptical Pipe

NOTE 1—The figure illustrates a method of applying the load to the pipe.
FIG. 4 Three-Edge-Bearing Test, Vertical Elliptical Pipe

FIG. 5 Lower Bearing Strip Detail

C 497

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