It concerns the steel bar for the construction of the bead, with which, as a rule, in the wheels with rims of railway rolling stock this is secured to the crown of the wheel center, and establishes its shape, dimensions, and the quality of the steel and the tests to be carried out for acceptance. Material: the bar must be manufactured from hot rolled general purpose steel Fe 37c UNI 7070-72, killed to the normalized state. Shape, size and designation. Exams and tests: visual examination and size control; tensile test; bending test. Proceedings. Number of batches and number of bars to be taken for testing. Acceptance criteria. Method of presentation for testing and delivery. Origin: UNIFER 2.141.
UNI 7162-1972 history
1972UNI 7162-1972 Railway vehicles and traction units. Bars for clip for wheels at separate tyre. Dimensions, quality and tests.