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Expanded/non-expanded ERW pipe

Thread starter reichertc
Start date Jun 12, 2003

Status: Not open for further replies.

Jun 12, 2003

reichertc

Mechanical

Hi folks. I was looking through the ASTM A53 specification and noticed that ERW piping can be supplied either nonexpanded or cold expanded, at the option of the manufacturer. What does this mean? I believe that it has something to do with getting the piping to the final tolerances, but am not sure of that. Any advice on when I would want to specify one over the other? I'd typically be looking at refinery applications, and am not interested in either hot or cold bending the piping.

Any insights appreciated. I am also posting this in the ASTM forum.