Class 150 Forged Carbon Steel Socket Weld, Raised-Face Flange for Schedule XH Pipe
Class 150 A105/SA-105 Socket Weld Flange for Schedule XH Pipe
The Class 150 ASTM A105 / ASME SA-105 Forged Carbon Steel Socket Weld Raised-Face Flange for Schedule XH Pipe provides a strong, compact connection for heavy-wall industrial piping systems. Designed for Schedule XH (Extra Heavy) pipe, this forged carbon steel flange combines durable construction, socket weld installation, and a raised-face sealing surface for dependable performance.
ASTM A105 / ASME SA-105 Forged Carbon Steel
Manufactured from ASTM A105 / ASME SA-105 forged carbon steel, this Class 150 socket weld flange offers excellent mechanical strength, toughness, and durability. A105/SA-105 material is widely specified for forged flanges and other pressure-containing components used in oil and gas, petrochemical processing, power generation, utilities, manufacturing, refineries, and industrial process piping.
The Class 150 designation represents an ASME pressure class rather than a maximum working pressure of 150 PSI. Allowable pressure depends on material, operating temperature, and applicable pressure-temperature ratings.
Socket Weld Connection for Schedule XH Pipe
A socket weld flange features a recessed socket that receives the connecting pipe. The Schedule XH pipe is inserted into the socket, positioned according to the applicable installation requirements, and joined using an external fillet weld.
Socket weld construction provides accurate pipe alignment and a durable connection for appropriate smaller-diameter industrial piping applications.
Raised-Face Flange Design
The raised-face (RF) flange features an elevated gasket seating area surrounding the bore. This design concentrates bolting load over the gasket surface, helping establish a reliable seal between compatible mating flanges.
When ordering a Class 150 A105/SA-105 socket weld raised-face flange for Schedule XH pipe, verify nominal pipe size, Schedule XH outside diameter and wall thickness, socket dimensions, flange facing, material specification, and applicable dimensional standard.
Proper flange selection helps ensure accurate fit, reliable sealing, and long-term performance in demanding Extra Heavy carbon steel piping systems.