Class 600 ASME A/SA105 ASME B16.5 Steel Flange used with Schedule 40, XH & 160 Pipe
Class 600 A/SA105 B16.5 Steel Flange for Schedule 40, XH & 160 Pipe
The Class 600 ASME A/SA105 ASME B16.5 Steel Flange used with Schedule 40, XH, and Schedule 160 Pipe provides a heavy-duty connection for demanding industrial pressure piping systems. Manufactured from forged carbon steel, these flanges combine excellent mechanical strength, durability, and standardized dimensions for critical commercial and industrial piping applications.
ASTM A105 / ASME SA-105 Forged Carbon Steel
ASTM A105 / ASME SA-105 is a widely specified forged carbon steel material for pressure-containing piping components. A105/SA-105 steel flanges are commonly used in oil and gas, petrochemical processing, refineries, power generation, chemical plants, manufacturing, utilities, and industrial process piping systems.
The Class 600 designation represents an ASME pressure class rather than a maximum operating pressure of 600 PSI. Actual allowable pressure depends on material, operating temperature, and applicable ASME pressure-temperature ratings.
Schedule 40, XH and Schedule 160 Pipe Compatibility
For a given nominal pipe size, Schedule 40, XH (Extra Heavy), and Schedule 160 pipe maintain the same outside diameter while having different wall thicknesses and inside diameters. Heavier schedules generally feature thicker walls and smaller internal bores.
Weld Neck and Socket Weld Flanges
Weld neck flanges can be supplied with bores corresponding to Schedule 40, XH, or Schedule 160 pipe, helping provide proper internal alignment at the butt-weld connection. Socket weld flanges use a recessed socket that receives the pipe outside diameter before an external fillet weld is applied.
Additional Class 600 Flange Styles
Depending on size and applicable standards, Class 600 A/SA105 flanges may include slip-on, threaded, blind, and lap joint configurations, with appropriate flange-facing options.
ASME B16.5 Flange Requirements
ASME B16.5 establishes applicable dimensions, facing requirements, bolt patterns, tolerances, and pressure-temperature ratings.
When ordering, verify nominal pipe size, Schedule 40, XH or Schedule 160 requirements, flange style, bore, facing, Class 600 rating, and A105/SA-105 material for proper industrial piping system compatibility.