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Reg. 259, Reg. 260 A,
Reg. 260 B
Tensile Test Pieces |
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a)
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Welded Joint:-
The dimensions of the reduced tensile section shall be
those shown in figure.
18A. The width of the reduced section
shall be at least 25 mm.
If the thickness of the plate does not exceed 30mm,
the thickness of the specimen shall be equal to the plate
thickness and the plate surface of the specimen shall
be machined to take away the surface irregularities of
the plate and the weld.
If the plate thickness exceeds 30 mm, the tensile test
shall be carried out on several reduced section specimens,
each having a thickness of at least 30 mm and a width
at the effective cross-section of at least 25 mm. These
specimens shall be taken out of the test piece in such
a way that the tensile test covers the whole thickness
of the weld joints as shown in figure
18B. In this case
the result of the test of every test specimen concerned
shall meet the requirements specified in regulation
260(a). |
| b) |
All weld metal:
The dimensions of the all weld metal tensile test specimens
shall be those given in figure 19.
The diameter shall be the maximum possible consistent
with the cross-section of the weld but in no case more
than 20mm. The gauge length shall be five times the diameter.
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Reg. 260
Tensile Tests
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(a) Welded joint
The ultimate tensile stress shall be not less than the
lower limit specified for the plate (see table under
Reg. 234).
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(b)
All-weld Metal
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The ultimate tensile stress shall be not less than
the lower limit specified for the plate (see table
under Regulation 234).
The elongation shall be not less than 20 per cent on
a gauge length of four times the square root of the
cross sectional area of the specimen, and the reduction
in area not less than 35 per cent.
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