A stainless steel flange is a type of flange that is made of stainless steel. Stainless steel is a corrosion-resistant alloy of iron, chromium, and nickel. It is commonly used in applications where corrosion resistance is important, such as in the chemical, food, and pharmaceutical industries. The technical specifications of a stainless steel flange will vary depending on the type of flange, the material grade, and the pressure rating. However, some common specifications include: Nominal pipe size (NPS): The NPS is the standard size of the pipe that the flange will be used with. Pressure rating: The pressure rating is the maximum pressure that the flange can withstand. Material grade: The material grade is the type of stainless steel that the flange is made of. Common material grades include ASTM A182 F304 and F316. Face type: The face type is the shape of the flange's face. Common face types include raised face (RF), flat face (FF), and ring-type joint (RTJ). Bolting arrangement: The bolting arrangement is the number and size of the bolts that are used to connect the flanges. Here is a more detailed description of the different types of stainless steel flanges: Weld neck flange: A weld neck flange is a type of flange that has a neck that is welded to the pipe. This type of flange is typically used for high-pressure applications. Slip-on flange: A slip-on flange is a type of flange that is slipped over the pipe and then secured with bolts. This type of flange is typically used for lower-pressure applications. Socket weld flange: A socket weld flange is a type of flange that has a socket that is welded to the pipe. This type of flange is typically used for smaller pipes. Lap joint flange: A lap joint flange is a type of flange that is joined to the pipe by overlapping the flanges and then welding them together. This type of flange is typically used for low-pressure applications. Blind flange: A blind flange is a type of flange that does not have a hole in the center. This type of flange is typically used to terminate a pipe. Stainless steel flanges are a versatile and reliable component that can be used in a wide variety of applications. They are available in a variety of types, sizes, and pressure ratings to meet the specific needs of each application.