Class 300 Forged Carbon Steel Socket Weld, Raised-Face Flange for Schedule 160 Pipe
Class 300 A105/SA-105 Socket Weld Flange for Schedule 160 Pipe
The Class 300 ASTM A105 / ASME SA-105 ASME B16.5 Forged Carbon Steel Socket Weld Raised-Face Flange for Schedule 160 Pipe provides a strong, compact connection for demanding heavy-wall industrial piping systems. Combining forged carbon steel construction, a precision-machined socket, and raised-face sealing surface, this flange delivers dependable strength, durability, and sealing performance.
ASTM A105 / ASME SA-105 Forged Carbon Steel
Manufactured from ASTM A105 / ASME SA-105 forged carbon steel, this Class 300 socket weld flange offers excellent mechanical strength, toughness, and durability. A105/SA-105 is widely specified for pressure-containing components used in oil and gas, petrochemical processing, refineries, power generation, chemical processing, manufacturing, utilities, and industrial process piping systems.
The Class 300 designation represents an ASME pressure class rather than a maximum working pressure of 300 PSI. Actual allowable pressure depends on material, operating temperature, and applicable pressure-temperature ratings.
Socket Weld Design for Schedule 160 Pipe
A socket weld flange features a recessed socket designed to receive the connecting pipe. The Schedule 160 pipe is inserted into the socket, positioned with the required installation clearance, and permanently secured using an external fillet weld.
For a given nominal pipe size, Schedule 160 provides a heavier wall and smaller inside diameter than lighter schedules, while the pipe outside diameter remains unchanged. The socket is sized to accept the applicable nominal pipe outside diameter.
Raised-Face Flange Construction
The raised-face (RF) flange incorporates an elevated gasket seating area surrounding the bore. Concentrating bolting force over this gasket area helps establish a reliable seal between compatible mating flanges.
Manufactured to applicable ASME B16.5 requirements, these Class 300 forged carbon steel socket weld flanges provide standardized dimensions and pressure-temperature ratings.
When ordering, verify nominal pipe size, Schedule 160 dimensions, socket size, Class 300 rating, raised-face configuration, A105/SA-105 material, and ASME B16.5 requirements for proper industrial piping system compatibility.