Class 150 ASME A/SA182 316/316L Stainless Steel Flange
Class 150 ASME A/SA182 316/316L Stainless Steel Flange
The Class 150 ASME A/SA182 316/316L Stainless Steel Flange provides a durable, corrosion-resistant connection for commercial and industrial pressure piping systems. Combining Class 150 pressure-class construction with forged or rolled 316/316L stainless steel, these flanges deliver excellent mechanical strength, dependable sealing performance, and enhanced corrosion resistance for demanding process environments.
ASTM A182 / ASME SA-182 F316/F316L Stainless Steel
ASTM A182 / ASME SA-182 covers forged or rolled alloy and stainless steel pipe flanges, forged fittings, valves, and related components intended for pressure systems. F316/F316L stainless steel contains molybdenum, providing improved resistance to pitting and corrosion in many chloride-containing environments compared with 304 stainless steel.
The lower carbon content of 316L stainless steel helps minimize carbide precipitation during welding, making it particularly suitable for welded piping systems where maintaining corrosion resistance in heat-affected areas is important.
Class 150 Stainless Steel Flange Applications
Class 150 A/SA182 316/316L stainless steel flanges are widely used in chemical processing, petrochemical plants, food and beverage production, pharmaceutical manufacturing, water treatment, marine environments, pulp and paper, power generation, utilities, and industrial process piping systems.
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 grade, flange size, operating temperature, and applicable pressure-temperature ratings.
Class 150 Flange Styles
Depending on system requirements, Class 150 316/316L stainless steel flanges may be available in weld neck, slip-on, socket weld, threaded, blind, and lap joint configurations. Facing options can include raised face (RF) and flat face (FF) where applicable.
Selecting a Class 150 316/316L Flange
When ordering a Class 150 A/SA182 316/316L stainless steel flange, verify nominal pipe size, F316/F316L grade, flange style, facing, pipe schedule or bore, dimensional standard, gasket, bolting, operating temperature, process media, and corrosion requirements for reliable industrial piping performance.