Class 150 Forged Carbon Steel Threaded, Raised-Face Flange
Class 150 ASTM A105 / ASME SA-105 Threaded Flange
The Class 150 ASTM A105 / ASME SA-105 Forged Carbon Steel Threaded Raised-Face Flange provides a strong, practical connection for industrial piping systems where a threaded installation is preferred. Unlike welded flanges, a threaded flange connects directly to compatible externally threaded pipe, making it useful for applications where welding is impractical or undesirable.
ASTM A105 / ASME SA-105 Forged Carbon Steel
Manufactured from ASTM A105 / ASME SA-105 forged carbon steel, this Class 150 threaded flange provides excellent mechanical strength, durability, and dependable service. A105/SA-105 carbon steel is widely specified for forged steel flanges, fittings, valves, and other pressure-containing piping components used throughout industrial facilities.
The Class 150 designation identifies the flange pressure class rather than a maximum working pressure of 150 PSI. Allowable pressure depends on material, operating temperature, and applicable ASME pressure-temperature ratings.
Threaded Steel Flange Design
A carbon steel threaded flange incorporates internal pipe threads that allow installation onto compatible male-threaded piping without butt or socket welding. Threaded construction can simplify assembly and provide a practical flange connection for appropriate piping applications.
Thread type, pipe size, service conditions, and applicable piping specifications should always be verified before installation.
Raised-Face Flange Construction
The raised-face (RF) flange features an elevated gasket seating area around the flange bore. Concentrating the bolting load over this sealing surface helps compress the appropriate gasket and establish a dependable seal between compatible mating flanges.
Class 150 A105/SA-105 threaded flanges are commonly manufactured according to ASME B16.5 requirements for applicable sizes. B16.5 establishes dimensional, facing, threading, bolting, tolerance, and pressure-temperature requirements.
For contractors, pipe fabricators, maintenance departments, and industrial facilities, the Class 150 A105/SA-105 forged carbon steel threaded raised-face flange offers a durable solution for creating serviceable threaded flange connections in industrial piping systems.