NDE Options for 700 Deg. F

[KANN]

I want to have a nondestructive evaluation for surface cracks performed in carbon steel fittings at a service temperature of 650 - 700 Deg. F. I understand that use of liquid penetrant or magnetic particle methods would require a shutdown.

A local inspection firm is investigating use of high temperature probes for eddy current method.

Are there other NDE methods to consider for this application? Are there any personal experiences with trying to accomplish this type of evaluation?

 

[metengr]

Seems a bit high in temperature. I would investigate the use of dry powder magnetic particle testing.

 

[KANN]

Our local inspection firm said tops on magnetic partical is 150-200 Deg. F.

Have you used MP at higher temps and can you refer me to a testing firm that you used?

 

[metengr]

Dry powder MT with prods can be performed above 150-200 deg F. We have used Conam Inspection.

 

[KANN]

Metengr -

Thank you, I have Conam checking into it now...

- Ken