Pipe fittings in high-pressure systems (above 10,000 psi) require specialized materials and designs:

Forged vs. Cast Fittings: Forged fittings (A105, F304, F316) exhibit superior strength and fatigue resistance.

Threaded vs. Welded Connections: Welded joints prevent leakages in extreme pressure conditions, used in hydraulic and offshore drilling systems.
Impact of Wall Thickness and Reinforcement: Extra-thick fittings (Sch 160, XXS) withstand extreme conditions in power plants and subsea pipelines.