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:
| Dimension Std | ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA,
Custom Drawings |
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| Specification | ASTM A182 / ASME SA182 |
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| Standards | ASTM, ASME Flanges, ANSI Flanges, DIN Flanges, EN Flanges, BS
Flanges etc |
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| Size | 1/2" NB – 48″ NB |
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| Class | 150#, 300#, 600#, 900#, 1500#, 2500#, etc |
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| Pressure | DIN PN6, PN10, PN16, PN25, PN40, PN64, PN100, PN160, etc |
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| Certification | IBR & NON IBR |
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| Additional Testing | NACE MR0175 , NACE TM0284 , HIC TEST , H2 SERVICE , ETC |
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ASTM A182 / ASME SA182 Grade F22 Alloy Steel Flanges Chemical
Composition:
| Grade | C | Mn | Si | P | S | Cr | Mo |
| Alloy Steel F22 | 0.50.15 max | 0.3-0.6 | 0.5 | 0.03 | 0.03 | 4-6 | 0.44-0.65 |
ASTM A182 / ASME SA182 Grade F22 Alloy Steel Flanges Mechanical Properties:
| Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 205 | 415 | 20 % |
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
