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Reg. 417

TESTS FOR CLASS II FUSION WELDED SEAMS

Selection of Test pieces

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 Figure 50 given below and stamped by the Inspector for identification:

(a) One tensile test specimen for the welded seam.
(b) Two bend test specimens.
(c) One nick break test specimen.

The remainder of each set of test plates shall be retained for any retest required. Any specimen for retest shall be cut from the same set of test plates as the original specimen.

Surfaces of tensile and bend specimens corresponding with the outside and inside of the shell 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 1/32 in.

 
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Message from Chairman of Central Boilers Board About Central Boiler Board History of Indian Boiler Regulations Foreword Contents Chapter Wise Contents Regulation Wise List of Amendments
Indian Boilers Act 1923 Ibr Forms Home Search Help Contact Us