Class 150 F304/L Stainless Steel Weld Neck, Raised-Face Flange used with Schedule 10S Pipe
Class 150 F304/L Stainless Steel Weld Neck Raised-Face Flange for Schedule 10S Pipe
The Class 150 F304/L Stainless Steel Weld Neck Raised-Face Flange used with Schedule 10S pipe provides a strong, corrosion-resistant connection for commercial and industrial stainless steel piping systems. Manufactured to ASME A/SA182 and ASME B16.5 requirements, this flange combines high-quality forged stainless steel construction with a tapered weld neck hub for dependable pressure piping performance.
ASME A/SA182 F304/L Stainless Steel
ASTM A182 / ASME SA-182 F304/F304L stainless steel provides excellent general corrosion resistance, mechanical strength, durability, and fabrication characteristics. F304L has a lower carbon content than F304, helping minimize carbide precipitation during welding and supporting corrosion resistance in heat-affected areas.
These stainless steel flanges are commonly used in chemical processing, food and beverage production, pharmaceutical manufacturing, water treatment, utilities, manufacturing, power generation, and industrial process piping systems.
Weld Neck Flange for Schedule 10S Pipe
A weld neck flange features a long tapered hub that provides a gradual transition from the flange into the connected pipe. The flange is butt welded to compatible Schedule 10S stainless steel pipe, producing a strong, permanent connection while helping distribute piping stresses through the tapered hub.
The flange bore should be properly matched to the Schedule 10S pipe wall thickness and inside diameter to promote smooth internal alignment and proper weld preparation.
The Class 150 designation identifies an ASME pressure class rather than a maximum working pressure of exactly 150 PSI. Actual allowable pressure depends on material, size, temperature, and applicable pressure-temperature ratings.
Raised-Face Flange Construction
The raised-face (RF) design provides an elevated gasket seating area that concentrates bolting force over the gasket, helping establish an effective seal between compatible flanged components.
ASME B16.5 establishes applicable dimensions, facing requirements, bolt patterns, tolerances, and pressure-temperature ratings.
Selecting an F304/L Schedule 10S Weld Neck Flange
When ordering, verify nominal pipe size, Schedule 10S bore, F304/F304L material, Class 150 rating, RF facing, ASME A/SA182 specification, ASME B16.5 requirements, gasket, bolting, welding procedure, temperature, and process media.