ANSI B16.5 ASTM A182 / ASME SA182 F22 Alloy Steel Flanges Forged Blind Flange

ANSI B16.5 Forged ASTM A182 / ASME SA182 Grade F22 Alloy Steel Flanges BLRF Flange

Alloy steel flanges made to the ASTM A182 F22 specification have excellent creep and stress rupture properties, making them suitable for use in high-temperature environments. They are commonly used in industries such as oil and gas, petrochemical, power generation, and refinery applications.These flanges are available in various types, including welding neck, slip-on, threaded, blind, lap joint, and socket weld flanges, among others. Each type has its own specific design and application requirements.

Specification:

ASTM A182 / ASME SA182 Grade F22 Alloy Steel Flanges Chemical Composition:

ASTM A182 / ASME SA182 Grade F22 Alloy Steel Flanges Mechanical Properties:

Other grades also available:

Stainless Steel: 304, 304L, 304H, 309, 309S, 316, 316L, 316H, 310, 310S, 317, 317L, 321, 347, 904L
Carbon Steel: WPB , WPBW, WPHY 42, WPHY 46, WPHY 52, WPH 60, WPHY 65 & WPHY 70
Monel: Monel 400, Monel K500, Monel R-405
Nickel: Nickel 200, Nickel 201
Inconel: Inconel 600, Inconel 601, Inconel 625, Inconel 718
Incoloy: Incoloy 800, Incoloy 800H, INCOLOY 800HT
Hastalloy: Hastalloy B2, Hastalloy B3, Hastalloy C22, Hastalloy C276, Hastalloy X
Titanium: Gr1, Gr2, Gr3, Gr5, Gr7, Gr11
Duplex Steel: UNS F44, F45, F51, F53, F55, F60, F61

Various Kinds of Flanges we can supply as below:

1. Slip-on Flanges.

Slip-on Flanges have a lower initial cost than welding neck flanges because they require less accuracy in cutting pipe to length, and they provide a greater ease of alignment in assembly. However, their calculated strength under internal pressure is approximately 2/3's the strength of welding neck flanges, and their life under fatigue is 1/3 shorter. Slip-on Flanges are limited to 1/2" to 2½" sizes in 1500lbs standard.

2. Threaded Flanges

Threaded Flanges are used for special applications. They can be assembled without welding and can be used in extremely high pressure services--at or near atmospheric pressure--where alloy steel is essential for strength. Threaded flanges are not suited for conditions involving temperature or bending stresses, or under cyclic conditions where leakage through the threads may occur.

3. Weld Neck Flanges

Weld Neck Flanges have a long tapered hub and gradual transition of thickness in the region of the butt weld joining them to the pipe. The tapered hub provides important reinforcement to the flange and resistance to dishing. This type of flange is preferred for severe service conditions resulting from high pressure, sub-zero or high temperatures.

4. Blind Flanges

Blind Flanges are used to blank off the ends of piping, valves and pressure vessel openings. Blind Flanges can handle high stress from internal pressure and bolt loading since the maximum stresses in the blind flange are bending stresses at the center.

5. Socket Weld Flanges

Socket Weld Flanges were developed for use on small size high pressure piping. With an internal weld, socket weld flanges are stronger and have greater fatigue strength than double welding a slip-on flange. Smooth bore conditions can be easily attained by grinding the internal weld. This flange is commonly used in chemical process piping.

6. Lap Joint Flanges

Lap Joint Flanges are used with lap joint stubs. Lap joint flanges are commonly used in carbon or low alloy steel piping systems that need to be frequently dismantled for inspection and cleaning. They should not be used at any points where severe bending stresses occur.

Flanges Size Range & Pressure Class & Flange Facing

Flanges Size Range : 1/8" NB to 48"NB.

Flanges Class : 150#, 300#, 400 #, 600#, 900#, 1500# & 2500#.

Flanges Facings : FF,RF,M,F,T,G,RJ,MF,TG

Applications of pipe flanges

• Paper & Pulp Companies
• High Pressure Applications
• Oil and Gas Industry
• Chemical Refinery
• Pipeline
• High Temperature Application
• Water Pipe Line
• Nuclear Power Plants
• Food Processing and Dairy Industries
• Boiler & Heat Exchangers