ASTM A 182 F 304 FLANGES

Material Composition:

• Stainless Steel Type: A182 F304 is a type of austenitic stainless steel.
• Chemical Composition: It primarily includes 18-20% chromium and 8-10.5% nickel. It may also contain small amounts of carbon, manganese, silicon, and other elements.

Properties:

• Corrosion Resistance: Excellent resistance to oxidation and corrosion in a variety of environments.
• Strength: Good tensile and yield strength, though not as high as some other alloys like 316.
• Temperature Range: Can withstand temperatures up to around 870°C (1600°F) for intermittent service and up to around 925°C (1700°F) for continuous service.

Applications:

• Commonly used in applications involving high temperatures and corrosive environments.
• Often found in chemical processing, oil and gas, and power generation industries.

Types of Flanges:

• Weld Neck Flanges: Often used in high-pressure applications and welded to pipes.
• Slip-On Flanges: Slide over the pipe and are welded to it.
• Blind Flanges: Used to close off the end of a pipe or vessel.
• Threaded Flanges: Have internal threads and are used where welding is not possible.
• Socket Weld Flanges: Designed for use with pipes and require welding around the pipe.

Standards:

• ASTM A182: Specifies the standards for the manufacturing of forged or rolled stainless steel flanges, fittings, and valves.
• ASME/ANSI B16.5: Provides the dimensions, tolerances, and materials for flanges used in piping systems.