Can North America make this tube?
Original reporting, verified capability data, and working tools for the engineers and buyers who source mechanical and precision steel tube.
The investigation is live
We built two real tube requirements — one to EN 10305-2, one to JIS G 3445 — and we are putting them to every North American mill that might plausibly produce them. Search engines return exporters and silence; we're getting answers on the record. What comes back — and what doesn't — publishes here, with every capability statement labeled, sourced, and dated.
What changed in North American tube
Labeled, sourced, dated — or not published
Every capability statement on this site carries one of seven labels — from Verified North American manufacturing to No current evidence found — plus a source and a last-verified date. When we don't know, the page says unknown. When we get one wrong, the correction is public and permanent.
The standards, explained properly
Stable, edition-cited references — summaries and ordering guidance, never reproductions of the copyrighted standards themselves.
PTJ Labs
Working tools built from our verified data. First up: the North American Tube Manufacturability Checker — enter a spec, get candidate production routes, what's missing, and a straight answer about confidence. In build now; checker access announcements go to newsletter subscribers first.
A PTJ Labs initiative — technology by Succession MFG.
Have a requirement you can't source?
If you're holding a print — EN, JIS, metric, or ASTM — that you currently import or can't place, take it to Tightsteel, our related digital warehouse for steel tube. Tightsteel pools buyer demand into mill runs on committed partner-mill capacity: see what's already on order, claim uncommitted footage on a run, or send your requirement to get a run scoped. Everything shown is planned mill production, not stock on a shelf.
Tightsteel is a related commercial venture. See disclosures.