No.
Typically need 3", schedule 40 pipe....which is about 3.5" OD.
That's why I always suggest recovering the pipe with the dish.
Some people find used drill pipe (reasonable), or have a real pipe store (expensive), locally.
Junk , scrap metal yards, and recyclers may have pipe for a good price. (cheap)
But it's always gonna cost something, and the pipe holding the dish is free.
One of my dishes came with 9' of pipe, showing a nice patina from 25 years in the California weather.
Smart thing would be to only file off sharp edges where I cut it, and rust-proof it there.
The pipe is not deteriorating, and I would expect 50 more years of service without painting.
But painting the mount, and pole does make sense.
(all my BUDs are aluminum)
Rust Destroyer @ Home Depot isn't expensive, was recommended to me by a guy with 40 years experience, and seems to work well.
That's the primer: two coats.
Just brush off loose rust, and prime.
I use a wire cup or wheel in a drill.
For a top coat, I've used Hammerite (!), and some Rust-O-leum products, with good success.
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