No tracking number?
Magnetic Flux Leakage Calibration Tube (MFL)
Eddy Current Tube Standards. Ready to request a quote for a
standard? Here's what we need... What is the material? (Alloy, OD and Wall) Is NDE supplying the material or will it be
customer supplied? What defects are needed and what size? (most depths are
given in % of tube wall) Is there a specification the standard needs to comply
with? (ASME, etc.) If you have a drawing, or
even a simple hand sketch, please send that along as well. We specialize in
custom eddy current tubes, and have years of
experience in machining a huge range of defects. From TWHs and FBHs, OD and ID
grooves, milled flats, and OD and ID thinning bands, to ID FBHs, ID contoured
flats, 120°/180° wearscars, tapered flaws, and
tube-to-tube wear,
|
Application |
Description |
MFL |
Comments |
|
Heat Exchangers |
|||
|
Mildly ferromagnetic material Duplex steel, SS439, Secure, Monel |
X |
– ECT is used only for thin tubes (<1.6
mm) with saturation probes.- For thicker walls, it is better to use RFT or
MFL.- IRIS can sometimes be used to confirm the sizing of defects. |
|
|
Ferromagnetic material Carbon steel, nickel. Typical defects are
pitting and corrosion. |
X |
– RFT, MFL, and IRIS are good, and most of
the time complementary. |
|
|
Air Coolers |
Carbon steel tube with aluminum fins Typical defects are ID pitting and OD wear
close to the water box. |
X |
– RFT is not effective because the fins
disturb the remote field.- MFL is quick and sensitive but does not allow
sizing.- IRIS is often used to back up MFL but has difficulty with OD flaws. |
|
Boilers |
Carbon steel tube Typical defects are pitting, wear, and
cracking at the tube sheet. |
X |
– RFT is good for wear detection and can
easily pass the bend.- MFL is good only on straight boiler tubes without
swages.- IRIS is good for wear and pits but has no sensitivity in the bend. |
NdeTech was established in 2012 as NDT based company. Our portfolio spans across industrial services and manufacturing sectors. NdeTech was established as an NDT& NDE Reference Standards and flawed weld specimens manufacturing company, and NDT Training Certification, Recruitment Consultant for Inspection Industries provider to cater to the requirements of various industries in India as well as abroad..
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