An approximate frequency dispersion equation of supersonic guided wave in corrugated tube made from stainless steel has been obtained from analysis

and the solution of said equation being numericaly sought by using the disperse software.The L(0

2) modal supersonic guided wave has been selected to detect the said corrugated tubes.The electromagnetic acoustic transducer(EMAT) and piezoelectric transducer have been designed to satisfy the supersonic guided wave detection of corrugated tubes made from stainless steel.Through conducting test on corrugated tube samples of stainless steel

the feasibility of using supersonic guided wave to detect corrugated tubes made from stainless steel has been validated.Results of test show that the transversal cracks on corrugated tubes made from stainless steel can be detected using the supersonic guided wave

but the defect of through-hole being difficult to distinguish.