Does this pipe size even exist?

Question

Ok, so, i need a pipe that is at least 10" long, with a coupling that can go on another pipe with fine 5/8" threads. Would prefer to get this in steel, if at all possible. Does this pipe even exist or do i have to get this sort of thing custom made? I went to lowes and they didnt have anything in the way of black steel pipe. Really dont want to resort to PVC but might consider that an option if it could s***w on there easily. Can anyone give me ideas on what i can do? thanks a lot. (this is for a personal project and has nothing to do with plumbing for my house. Needs to stand up to some heat and pressure.)

Answer 1

Steel is ok but once you use PVC you will not go back.  PVC is easier to get and easier to cut.  I transfered all my pipes to PVC and it is easier to clean and maintain.  If you really need steel you will have to go to a plumbers shop and have them cut and weld.  A lot of work.

Answer 2

Pipe threads are usually coarse, and are tapered. To get a straight thread of a specific size,  you will need to go to a machine shop.

Answer 3

Fine threads for 5/8" sounds like electrical conduit to me.

Black pipe sounds like Gas Pipe which would be coarse threads.

1) A plumbing supply house would have couplings, reducers and cut lengths.

2) Iron pipe will rust over time and has a specific pressure limit.

3) PVC won't rust and comes in regular "Schedule 40" and heavy wall "Schedule 80".

4) Also a plumbing supply can give you the best advice and you can tell them what you need and/or what you want to do.

Good Luck ! ! !

Answer 4

Sounds like you're building a still.  s***w the jumbo home stores.  Find an old fashioned hardware/general store.  They still exist.  If they can't find you what you need, it probably doesn't exist.  

Why does it have to be black?  Those were rather brittle.

Answer 5

Typical pipe threads are 8 per inch (NPT) and tapered. Electrical threads are the same except straight. Only fine threads on plumbing fittings is on compression fittings or some gas fittings. I would not use PVC for pressure or temperature usage.

Answer 6

Fine threads are not the standard for plumbing or gas pipes.  Can't you get more of whatever pipe you are connecting it to and a die to thread it if necessary?  PVC won't typically hold up well to temperatures over 160 degrees or so.