A forged threaded coupling is a type of pipe fitting that is used to connect two lengths of threaded pipe. It is made from a solid piece of metal that is then threaded on both ends. Forged threaded couplings are typically made from steel, stainless steel, or brass. They are available in a variety of sizes and pressure ratings. Specifications: Material: Carbon steel, stainless steel, alloy steel, nickel alloy Size: 1/8 inch to 4 inches NPS Pressure rating: Varies depending on material and size Thread type: NPT, BSP, BSPT Finish: Black, galvanized, stainless Applications: Oil and gas industry, chemical processing industry, petrochemical industry, water treatment industry, HVAC industry, fire sprinkler industry