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Cold bend tests shall be made upon test pieces having rectangular
section of one inch wide by ¾ inch thick. The test
pieces shall be machined and the edges rounded to a radius
of 1/16 inch. The test pieces shall be bent over the thinner
section.
Bend tests may be made by pressure or by blows, and the test
pieces shall without fracture withstand being bent round a
former having a radius of 1 inch through an angle not less
than that given in the following table:-
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Grade of Casting
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Angle of Bend minimum
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A......................................
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120°
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B.....................................
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90°
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C....................................
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No test
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