Class 600 ASME A/SA105 ASME B16.5 Steel Flange
Class 600 A/SA105 ASME B16.5 Steel Flange
The Class 600 ASME A/SA105 ASME B16.5 Steel Flange is a heavy-duty forged carbon steel piping component designed for demanding industrial pressure piping systems. Manufactured from A105/SA-105 carbon steel and produced to applicable ASME B16.5 requirements, these flanges provide strong, dependable connections between pipe, valves, fittings, pumps, vessels, and other process equipment.
ASTM A105 / ASME SA-105 Forged Carbon Steel
ASTM A105 / ASME SA-105 specifies forged carbon steel piping components intended for pressure service. A105/SA-105 flanges provide excellent mechanical strength, toughness, and durability for applications in oil and gas, petrochemical processing, refineries, power generation, chemical plants, manufacturing, utilities, and industrial process piping systems.
The Class 600 designation identifies an ASME pressure class rather than a maximum operating pressure of 600 PSI. Actual allowable working pressure depends on material, operating temperature, and applicable ASME pressure-temperature ratings.
Class 600 Steel Flange Styles
Weld Neck and Socket Weld Flanges
Weld neck flanges feature a tapered hub and butt-weld connection that provides a strong, permanent transition between flange and pipe. The bore can be selected to correspond with the required pipe schedule. Socket weld flanges incorporate a machined socket that receives the pipe before an external fillet weld is applied.
Slip-On, Threaded, Blind, and Lap Joint Flanges
Depending on size and applicable standards, Class 600 A/SA105 flanges may also be available in slip-on, threaded, blind, and lap joint configurations. Flange facing options can include raised-face and other configurations where specified.
ASME B16.5 Flange Requirements
ASME B16.5 establishes requirements for applicable flange dimensions, facing dimensions, bolt patterns, tolerances, materials, and pressure-temperature ratings.
When ordering a Class 600 A/SA105 ASME B16.5 steel flange, verify nominal pipe size, flange style, pipe schedule or bore, facing, material specification, Class 600 rating, and service conditions to ensure proper industrial piping system compatibility.