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Technical Discussions
Sheeraz
NDT Inspector,
Pakistan, Joined Jan 2014, 3

Sheeraz

NDT Inspector,
Pakistan,
Joined Jan 2014
3
21:07 May-09-2019
ut of carbon steel shaft
Please can somebody suggest me to do UT of carbon steel shaft size of 320 dia and 4200 length. I have been told by UT inspector level 2 straight beam transducer never be used for crack detection it is only used for lamination or thickness. Is it so.
Shaft can be inspected radially and axially with straight beam or angle beam transducer.
    
 
 Reply 
 
Daniel Braun
Daniel Braun
10:11 May-10-2019
Re: ut of carbon steel shaft
In Reply to Sheeraz at 21:07 May-09-2019 .

In-service inspection - detection of transverse cracks:

http://www.sonotronndt.com/SHAFTS_BOLTS.htm

http://www.sonotronndt.com/APPLICATIONS/PA_APPS/PA_APP_STORE/ISONIC_PA_EXPERT_SHAFT.pdf

http://www.sonotronndt.com/RW_AXLE.htm

http://www.sonotronndt.com/APPLICATIONS/PA_APPS/PA_APP_STORE/ISONIC_PA_RW_AXLE_TEST.pdf

In-service inspection - detection of longitudinal cracks:

http://www.sonotronndt.com/RODSCAN.htm

http://www.sonotronndt.com/APPLICATIONS/PA_APPS/PA_APP_STORE/ISONIC_PA_ROD_Scan.pdf

Both inspection are applicable for the hollow and solid shafts








1    
 
 Reply 
 
Michel Couture
NDT Inspector,
consultant, Canada, Joined Sep 2006, 847

Michel Couture

NDT Inspector,
consultant,
Canada,
Joined Sep 2006
847
12:46 May-13-2019
Re: ut of carbon steel shaft
In Reply to Sheeraz at 21:07 May-09-2019 .

ASTM E388

    
 
 Reply 
 
Sheeraz
NDT Inspector,
Pakistan, Joined Jan 2014, 3

Sheeraz

NDT Inspector,
Pakistan,
Joined Jan 2014
3
20:10 May-15-2019
Re: ut of carbon steel shaft
In Reply to Michel Couture at 12:46 May-13-2019 .

Thank you all please share acceptance criteria for in service shaft

    
 
 Reply 
 
Daniel Braun
Daniel Braun
09:45 May-16-2019
Re: ut of carbon steel shaft
In Reply to Sheeraz at 20:10 May-15-2019 .

for the in-service inspection for fatigue transverse cracks the sensitivity setting is based on the detection of standard saw cut made from the rounded surface of the shaft at rectangle to the axis, the depth of the saw cut for each area of the shaft is defined by the local procedures and regulations, for example for the same type of railway car shaft - wheel-seat area - the depth may vary from 0.5 to 3 mm in different countries

    
 
 Reply 
 

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