I'm pretty sure a metal pipe will set off a... oh, what are they called? Nevermind. Glass pipes? Hey... whatever you want to put up your ass is YOUR biz, but you won't catch me trying to board a plane in post-911 society with a fucking weed pipe. Based on the stupidity of your question, I'll take a shot in the dark and say NO, you can't clean your shitty pipe up well enough to pass through security.