Just throwing this out there but in North America (and probably elsewhere), the black finished “line posts” used for chain link fencing work very well as 1.5 inch black rack pipe. At about $10-12 per post, it is a bargain. Cut with a hacksaw or grinder. My Yamaha e-kit is 1.5 inch pipe and the new piece that I put in is nearly identical in finish and texture. FYI, line posts are the posts that go between corner/main posts which are 1-7/8”. Don’t get corner/main posts!

Just make ale sure you pick out pieces that are not scratched up or dinged.