Class 150 F316/L Stainless Steel Weld Neck, Raised-Face Flange use with Schedule 10S Pipe
Class 150 F316/L Stainless Steel Weld Neck Raised-Face Flange for Schedule 10S Pipe
The Class 150 F316/L Stainless Steel Weld Neck Raised-Face Flange used with Schedule 10S pipe provides a strong, corrosion-resistant connection for demanding industrial stainless steel piping systems. Manufactured to ASME A/SA182 and ASME B16.5 requirements, this flange combines forged stainless steel construction with a tapered weld neck hub for dependable pressure piping performance.
ASME A/SA182 F316/L Stainless Steel
ASTM A182 / ASME SA-182 F316/F316L stainless steel provides excellent mechanical strength, durability, and corrosion resistance. Its molybdenum content improves resistance to pitting and corrosion in many chloride-containing environments compared with F304 stainless steel.
The lower carbon content of F316L stainless steel helps minimize carbide precipitation during welding, supporting corrosion resistance in properly fabricated welded piping systems.
Weld Neck Flange for Schedule 10S Pipe
A weld neck flange features a long tapered hub that creates a gradual transition from the flange into the connected pipe. The flange is butt welded to compatible Schedule 10S stainless steel pipe, creating a strong, permanent connection while helping distribute mechanical and piping stresses through the hub.
The flange bore should be properly matched to the Schedule 10S pipe wall thickness and inside diameter for proper internal alignment and weld preparation.
These flanges are commonly used in chemical processing, pharmaceutical manufacturing, food and beverage production, water treatment, marine applications, utilities, and industrial process piping.
The Class 150 designation identifies an ASME pressure class rather than a maximum working pressure of exactly 150 PSI.
Raised-Face Flange Construction
The raised-face (RF) design provides an elevated gasket seating area that concentrates bolting load over the gasket to help create an effective seal.
ASME B16.5 establishes applicable dimensional, facing, bolting, tolerance, and pressure-temperature requirements.
Selecting an F316/L Schedule 10S Weld Neck Flange
When ordering, verify nominal pipe size, Schedule 10S bore, F316/F316L material, Class 150 rating, RF facing, ASME A/SA182 specification, ASME B16.5 requirements, gasket, bolting, welding procedure, temperature, process media, and corrosion requirements.