Serious question, has anyone else seen more composite tube being spec'd for high-temp jobs?

Three years ago on a refinery job in Baton Rouge, it was all seamless carbon steel. Last month, the prints for a similar job called for a composite rated for 800 degrees. Anyone worked with this stuff yet?

4 comments

4 Comments

the_charlie12d ago

You mentioned the switch from seamless to composite. Is the 800-degree rating for continuous service or just a short-term peak? That spec makes a huge difference in what they're actually trying to do.

the_faith11d ago

My buddy's team got burned on a project last year because they mixed up those exact specs. They read the peak temp as continuous and the whole assembly failed after a few hours. Now they triple check every rating sheet before they even start a design.

quinn60610d ago

Sounds like they just didn't read the sheet right.

wader7111d ago

So is this composite stuff actually holding up or what? I saw a job last fall where they used it for some hot lines and it looked like a mess after a few months. @the_faith is right about checking those sheets, because the peak vs continuous thing is no joke. Feels like everyone's just guessing with this new material.