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                                                                                  For Official use only 
                                                               
                                                   सत्यमेव जयत े
                                         GOVERNMENT OF INDIA 
                                         MINISTRY OF RAILWAYS 
                    RESEARCH DESIGNS AND STANDARDS ORGANISATION 
                                                  LUCKNOW 
                                                          
                                                                                       
          Code of Procedure of Ultrasonic Testing for WAP5 Loco 
          Axle  with  direct  drive  to  Drawing  no.  G34-300.00-81  in 
          Service. 
                                                          
                                                          
                         METALLURGICAL AND CHEMICAL DIRECTORATE 
                                  CODE OF PROCEDURE No. MC-172 
                                      SEPTEMBER- 2018 (First Issue) 
                   
                                                          
                                                          
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                                                    CONTENT 
                                                          
           
             S.No.          Description                                                       Page 
                1.          Scope                                                               4 
                2.          Normative References                                                4 
                3.          Methodology                                                         5 
                4.          Code of procedure                                                  5-7 
                5.          Important Note                                                      8 
                6.          Important Points                                                   8-9 
                7.          Criteria for acceptance                                             9 
                8.          Magnetic Particle Testing                                           9 
                9.          Recording of test details                                           9 
                10.         Appendix 1                                                        10-11 
                11.         Sketch of Axle                                                      12 
                12.         Practically Observed Trace Patterns                               13-24 
                13.         Some Important A-Scan Images Taken during Data collection         25-26 
           
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                                               M & C DIRECTORATE 
                                                 RDSO/LUCKNOW 
                                                          
                  Standardisation of Ultrasonic Testing for WAP5 loco Axle with direct drive to Drawing no. 
                 G34-300.00-81 in Service. 
                 Synopsis: 
                        To ensure safety and reliability of rolling stocks, axles are required to be examined 
                 periodically for presence of cracks. This report describes the details of work carried out on 
                 standardization of Ultrasonic Testing Technique for above axle in service by far end, trace-
                 delay,  Near-end  low-angle  scanning  &  High-angel  scanning  using  pulse  echo  reflection 
                 technique.  This  procedure  is  applicable  for  axles  in  service  and  intended  to  be  used  by 
                 ultrasonic personnel trained and certified by RDSO. 
                 1. Scope: 
                 To Standardize the Ultrasonic Testing of WAP5 loco Axle with direct drive to Drawing no. 
                 G34-300.00-81 in Service. 
                 2.  Normative  References:  The  following  RDSO/IS  standards  contain  provisions,  which 
                 through reference in this text constitute provisions of this code of procedure. At the time of  
                 Publication, the edition indicated were valid 
                 Specification No.                   Title 
                 RDSO         Specification     no.  Portable  digital  ultrasonic  flaw  detector  with  A-Scan 
                 M&C/NDT/125/2004,  Rev-II,  January  Storage 
                 2017 or latest 
                 RDSO Specification no. WD-17-Misc-92  Specification for Soft Grease 
                 / latest  
                 IS: 1628-1986 Reaffirmed in Feb 1996 /  Specification for Axle Oil 
                 latest 
                 IS: 1875-1992 / latest              Carbon steel billets, blooms, slabs and bars for forgings 
                 IS: 12666-1988/latest               Methods for performance assessment of ultrasonic  flaw 
                                                     detection equipment 
                 IS 8791 - 1978 / latest             Code of practice for ultrasonic  flaw  detection  of  ferritic 
                                                     steel forgings 
                 ASTM E112 ( latest version)         Standard  Test  Methods  for  determining  Average  Grain 
                                                     sizes