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Reg. 259
, Reg. 260 A, Reg. 260 B

Tensile Test Pieces

a)

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.




Reg. 260 

Tensile Tests

(a) Welded joint

The ultimate tensile stress shall be not less than the lower limit specified for the plate (see table under Reg. 234).


(b) All-weld Metal

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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