ASTM A105 Weld Neck Flange, 3 Inch, 150 LB, ASME B16.5

Aug 12, 2026

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Type: Weld Neck Flange (WN Flange)
Nominal Size: 3 Inch (NPS 3)
Pressure Class: Class 150 LB
Sealing Face: RF (Raised Face)
Material: ASTM A105 Forged Carbon Steel
Matching Pipe Wall Thickness: SCH STD (Standard Schedule)
Manufacturing Standard: ASME B16.5
Surface Treatment: Black Painted

Product Description

Weld Neck Flange (WN Flange), 3 inch, Class 150LB, RF Facing, ASTM A105 Carbon Steel, SCH STD, ASME B16.5, Black Painted. A forged carbon steel weld neck flange designed for connecting pipes with a strong, leak-resistant joint. The raised face (RF) design provides reliable sealing performance when used with suitable gaskets and bolting.

Typical Application

Widely used in oil & gas, petrochemical, power generation, chemical processing, and industrial piping systems for high-pressure and high-temperature pipeline connections, valves, and equipment.