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Reg. 258
Selection of Test Pieces* |
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a)
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From the test plate
or plates on each longitudinal seam, test pieces shall
be selected for the following tests, the specimens being
cut out as shown in Figs. 16
and 17 and stamped by the
Inspecting Officer for identification:-
| i) |
One tensile test specimen
for the welded joint |
| ii) |
One all-weld metal tensile
test specimen |
| iii) |
Two bend test specimens. |
| iv) |
Three notched-bar impact
test specimens. |
| v) |
One specimen for micro and macro examination. |
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*Examples showing appropriate dispositions of the test
pieces in the test plates are shown in figures 16 and
17.
The remainder of each set of test plates shall be retained
for any re-tests required. Any specimen for re-test shall
be cut off from the same set of test plate, as the original
specimen. |
| b) |
Surfaces of tensile, bend and impact test specimens
corresponding with the outside or inside of the drums
shall be only lightly dressed so that the rolled surface
of the parent metal is not wholly removed, except that
where the rolled surfaces of the abutting plates are
not level with one another, one plate may be machined
at each face of the weld provided the depth of metal
removed does not exceed 0.8 mm.
| For Fig 16 |
| i) |
Tensile test for joint. |
| ii) |
Tensile test for all-weld
metal. |
| iii) |
Bend test, outer and
inner surfaces of plate (at weld). |
| iv) |
Notched-bar impact test
specimen. |
| v) |
Micro and macro specimen. |
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For fig 17 |
| i) |
Tensile test for joint. |
| ii) |
Tensile test for all-weld
metal. |
| iii) |
Bend test, outer and
inner surfaces of plate (at weld). |
| iv) |
a. Izod impact test,
outer surface of plate.
b. Izod impact test, inner surface of plate. |
| v) |
Micro and macro specimen. |
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