Yes EMT is galvanized and when welded it puts off a poisoness gas. be very careful if you do this . I have welded EMT but usually have a fan blowing away from my work and use flux core wire. I have been told to drink LOTS of milk if your around it???

Just be careful .

You might also check a scrap metal company and see if they have any muffler pipe that is not galvinized. I buy alot pipe from a place local that is just a little rusty and get a great deal on it . it paints up well and makes great stands.