Natural Gas

Titanium disc is usually used to make heat exchanger titanium tubesheet or to be machined into titanium flange, etc.

Slip-on pipe flanges actually slip over the pipe.  These pipe flanges are typically machined with an inside diameter of the pipe flange slightly larger than the outside diameter of the pipe.

ASTM A213 is a standard specification for seamless ferritic and austenitic alloy-steel boiler, superheater, and heat-exchanger tubes.

P110 casing is a type of steel pipe used in oil and gas well drilling and completion operations. The "P110" designation refers to the pipe's minimum yield strength, indicating that the pipe can withstand a certain amount of pressure and stress during drilling and production.