Tag
#fabrication
5 topics across all disciplines.
Plate materials — what vessels and tanks are actually made from
A516, A240, Monel, Hastelloy and titanium — why a plate specification is not a pipe specification, what each alloy is bought to survive, and why you almost never buy a solid exotic vessel.
Fittings and branch connections — how a pipe changes direction
Elbows, tees, reducers and caps, and the branch fittings that take a small line off a big one. What each is for, why the dimensions are fixed, and why a branch needs reinforcement.
Welding processes, WPS and NDT — what happens before an arc is struck
SMAW, GTAW, GMAW and the rest, explained by what they are good at. Then the paperwork that makes a weld legal — WPS, PQR and welder qualification — and how welds are inspected.
From isometric to installed line — fabrication, erection and testing
How to read a piping isometric, why spool breaks decide what happens in the shop and what happens at height, and the test and reinstatement sequence that gets a line handed over.
Structural steel — sections, connections and why it must be fireproofed
How to read a steel section designation, what makes each shape good at its job, bolted versus welded connections, and why unprotected steel fails in a hydrocarbon fire in about ten minutes.