Class 600 Forged Carbon Steel Socket Weld, Raised-Face Flange for Schedule 40 Pipe
Class 600 A105/SA-105 Socket Weld Flange for Schedule 40 Pipe
The Class 600 ASTM A105 / ASME SA-105 ASME B16.5 Forged Carbon Steel Socket Weld Raised-Face Flange for Schedule 40 Pipe provides a strong, compact connection for demanding industrial pressure 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 600 socket weld flange offers excellent mechanical strength, toughness, and durability. A105/SA-105 is widely specified for pressure-containing components used throughout oil and gas, petrochemical processing, refineries, power generation, chemical processing, manufacturing, utilities, and industrial process piping systems.
The Class 600 designation identifies an ASME pressure class rather than a maximum working pressure of 600 PSI. Actual allowable pressure depends on material, operating temperature, flange size, and applicable pressure-temperature ratings.
Socket Weld Design for Schedule 40 Pipe
A socket weld flange incorporates a recessed socket designed to receive the connecting pipe. The Schedule 40 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 40 determines the pipe wall thickness and inside diameter, while the outside diameter remains consistent with the applicable NPS. The socket is sized to accept the corresponding pipe outside diameter.
Raised-Face Flange Construction
The raised-face (RF) flange features an elevated gasket seating area surrounding the bore. This design concentrates bolting force over the gasket area, helping establish a reliable seal between compatible mating flanges.
Manufactured to applicable ASME B16.5 requirements, Class 600 A105/SA-105 socket weld flanges provide standardized dimensions, bolt patterns, facing requirements, and pressure-temperature ratings.
When ordering, verify nominal pipe size, Schedule 40 dimensions, socket size, Class 600 rating, raised-face configuration, A105/SA-105 material, ASME B16.5 requirements, gasket selection, and service conditions for reliable industrial piping performance.