tube inspection: multi technology system approach

Eddy current (EC) is commonly used to inspect nonferrous material, whereas remote field technology (RFT) or magnetic flux leakage (MFL), is used to inspect carbon steel.

Ultrasonics (UT) may be used for accurate thickness measurement and crack detection in almost any type of material. These limitations are nowhere as evident as in tube testing.

INSPECTION OF TUBES AND PLATES

APPLICATIONS

Eddy Current

Remote Field

Magnetic Flux Leakage

IRIS (Ultrasonics)

UT Multichannel

Non magnetic heat exchanger tubes

x

 

 

x

 

Steam generator tubes

x

 

 

 

 

Air conditioner tubes

x

 

 

 

 

Ferritic and carbon steel tubes

 

x

x

x

 

Aluminum-finned carbon stell tubes

 

 

x

x

 

Boiler tubes

 

x

 

x

 

Water pipes

 

x

 

 

 

Carbon stell tubes, wear under support

 

 

 

x

 

Stell plate corrosion mapping

 

 

x

 

x

 

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