Question 1

Can procurement pick “cheaper schedule” pipe?

Accepted Answer

Only if the line list allows; wall thickness is a stress decision, not a commercial guess.

Question 2

When is seamless required?

Accepted Answer

When the code, consultant, or client class says so — never assume.

Question 3

Do I need PTFE tape on steam?

Accepted Answer

Follow method statements; steam systems have specific sealing rules.