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What non-destructive testing techniques may be applied to cast iron welds?

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Question added by Khalid Mirza , Sr. QA QC Manager , Al Fara'a Steel Structure
Date Posted: 2016/11/08
Bikash Singh
by Bikash Singh , Senior Quality Engineer , Tata Consultancy Services Limited

The non-destructive testing techniques, which may be applied to welds and repairs in cast irons are Visual examination,

Magnetic particle/liquid penetrant tests

or Radiographic inspection.

All acceptance criteria for Visual, penetrant and radiographic testing should be in accordance with an appropriate standard eg: Appendix D in ANSI/AWS D11.2.

Ailida Uteshova
by Ailida Uteshova , QC Specialist , JSC "OGCC KazStroyService"

The three non-destructive testing techniques, which may be applied to welds and repairs in cast irons are visual examination, magnetic particle&liquid penetrant tests or radio-graphic inspection.

Bobin Hasan
by Bobin Hasan , Piping Design Engineer (E3D, PDMS, SP3D, PDS) , Fluor Daniel Inc.,Philippines

MAGNETIC PARTICLE INSPECTION or MPI.

cheloui omar
by cheloui omar , nettoyeur des plantes , jardin public

la fonte ne soudure pas la fonte et fer ne pas le meme.

Mubeen Khalid
by Mubeen Khalid , QC Supervisor- Piping/Welding , National Petroleum Construction Company (NPCC)

Radiographic Testing and Magnetic Partical Inspecion.

Kataiah Pamula
by Kataiah Pamula , Assistant Manager - QA/QC , Al-Hassan Engineering

Liquid pentrant testing

Magnetic particle inspection

radiographic inspection

Rizwan Alira Mahin
by Rizwan Alira Mahin , Electrical Products Sales Engineer , Siddique Mustafa & Sons Co LLC

For non porous cast iron surface, all NDT techniques (RT, UT, PT, VT) can be applied. If the surface is porous PT isn't applicable. 

farag farag
by farag farag , QCengineer , zamil offshore co

surface detection dye penetration test

Akshay Singh
by Akshay Singh , Metallurgist , NDT Corrosion Control Services

The three non-destructive testing techniques, which may be applied to welds and repairs in cast irons are visual examination, magnetic particle/liquid penetrant tests or radiographic inspection.

Before making any critical weld repair, the defective area should be checked with magnetic particle/liquid penetrant to locate the extent of all surface defects associated with the repair.

Major repairs and complete joint penetration welds in cast iron where minimum specified base metal strength is required should be tested by all three techniques above.

Joints and repairs in non-critical areas require only visual examination and penetrant testing.

All acceptance criteria for visual, penetrant and radiographic testing should be in accordance with an appropriate standard eg: Appendix D in ANSI/AWS D.2

RAMESH KANTHASWAMY
by RAMESH KANTHASWAMY , QA , MASCONSTRUCTIONS

To find the internal defects we can use Ultrasonic testing & Radiography testing.

 

 

MT,PT,RADIGRAPHIC EXAMINATION

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