Alloy Steel Flanges manufacturer in India

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Supplier of Chrome Moly Flanges and ASTM A182 Forged Flanges in Mumbai according to ASME B16.5

An alloy steel flange is made up of a type of steel that is alloyed with more than one alloying element. The added materials help to increase the strength, hardness, and toughness of the flanges. These elements also help in making the flanges wear resistant. Thus, the chemical composition of the alloy steel flange helps in enhancing its overall properties. The alloy steel flanges are also known for its high resistance to corrosion, which is a crucial feature of any flange. It also comes with high machinability and strength, however, the extent of the features can be altered according to the grade of the alloy steel which is used. With heat treatment, the alloy steel flanges can offer you with the given advantages:

  • It enhances the corrosion resistance properties
  • It improves the hardenability of the product
  • It also increases the strength and hardness of the flanges

The quality of the alloying steel varies with the quantity of the alloying elements present in it. In a high alloying steel, the alloying elements make up to 8% of the total composition. Stainless steel is one of the most popular high alloying steel that consists of around 10.5% chromium by mass. The coating of chromium oxide on the stainless steel makes it resistant to all types of corrosion and rust. However, the low alloying steel is basically modified with other elements that improves its physical properties such as hardenability, strength, etc. Here, the carbon content is reduced to 0.2% which helps it to retain its strength and improves its formability.

The common elements used in the alloying steel would include:

  • Manganese for reducing the brittleness and machinability of the flanges.
  • Chromium helps in resisting corrosion.
  • Vanadium helps to improve the strength, heat resistance and the overall grain structure of the flanges.
  • Nickel also helps to improve the corrosion resistance properties of the flanges.
  • Tungsten increases the melting point of the alloying steel, making it more resistant to heat. It also helps in improving the structural makeup of the steel.
Alloy Steel Flanges Manufacturer In India

Alloy Steel Flanges Manufacturer In India

Reliable & Fast Alloy Steel Weld Neck Flange and AS Slip On Flange manufacturers in India

The Alloy Steel Lap Joint Flanges along with the stub-end assembly are mostly used in piping systems that require frequent dismantling. In other words, they are perfect for the piping connections where frequent inspections and maintenance are common. It comes with a quick bolt hole alignment that is used for configuring the hard-to-adjust piping connections. They are affordable and can be used for corrosive applications.
On the other hand, the alloy steel threaded flanges are used for the pipes that come with threads. One of the biggest advantages of using this traditional flange is that they can be connected to the piping system without welding. They can be fitted to pipes of different sizes, and that too without welding, which reduces the overall cost to a great extent. These are mostly used in places that are prone to explosion like hexane plants, stores with inflammables, etc. With the requirement for welding, a major source of ignition can be removed. They are quick to assemble and disassemble when compared to the welded lap joint flange.

Table of Content


Alloy Steel Flanges Size Chart 1/2″ (15 NB) to 48″ (1200NB)
Pressure Rating Chart ANSI 900 LBS, 600 LBS, 150 LBS, 2500 LBS, 300 LBS, 1500 LBS
Alloy Steel Flanges DIN Pressure Calculation 25Bar 16Bar 40Bar 6Bar 10Bar / PN64 PN16 PN10 PN25 PN6 PN40
JIS 5K, 16 K, 10 K, 30 K, 20 K, 40 K, 63 K
Common Types By Manufacturer Screwed / Threaded / Forged / Plate
Alloy Steel Flanges UNI / EN 16Bar 6Bar 40Bar 10Bar 25Bar
Manufacturer of Connect Type/ Flange Face Type Small Tongue, RF, FF, LJF, RTJ, Large Tongue & Groove
Chrome Alloy Steel Flanges Coating Yellow Transparent, Zinc Plated, Anti-rust Paint, Oil Black Paint, Cold and Hot Dip Galvanized
Standards Provided By Manufacturer JISB2220, BS1560-3.1, API7S-43, API605, ANSI/ASME B16.5, BS4504, BS 10, B16.47 Series A & B, EN-1092, DIN, API7S-15, ASME/ANSI B16.5/16.36/16.47A/16.47B, B16.48, ISO70051, MSS S44, EN1092
Alloy Steel Pipe Flanges Equipment Press machine, Bending machine, Pushing Machine, Sand-blasting machine, electric bevelling machine etc
Alloy Steel Weld Neck Flange Origin West Europe / Japan / Indian / USA / Korean
ASTM A182 F92 Flange Manufacturer of ANSI DIN, GOST, JIS, UNI, BS, AS2129, SABS, NFE, AWWA, EN etc.
Chrome Alloy Steel Blind Flange Test X-ray detector, Direct-reading Spectrograph, Magnetic particle detector, Ultrasonic flaw detector, Hydrostatic testing machine
Alloy Steel Pipe Flanges Production technique Used By Manufacturer Forged, Heat treated and machined

Are you looking for ASTM A182 F92 Flanges distributor, dealers, supplier, stockholders, wholesalers, importer, stockists, exporters and Manufacturer in Mumbai.

Pipe Size
(inches)
Inside Diameter
(Slip on Bore)
(inches)		Outside Diameter
(inches)		Bolt Circle
(inches)		Number of Bolt HolesBolt Hole Diameter
(inches)		Thickness
(inches)
44.5797-1/283/45/8
55.66108-1/287/85/8
66.72119-1/287/811/16
88.7213-1/211-3/487/811/16
1010.881614-1/412111/16
1212.88191712111/16
1414.192118-3/4121-1/811/16
1616.1923-1/221-1/4161-1/811/16
1818.192522-3/4161-1/411/16
2020.1927-1/225201-1/411/16
2222.1929-1/227-1/4201-3/83/4
2424.193229-1/2201-3/83/4
26-34-1/431-3/4241-3/813/16
28-36-1/234281-3/87/8
30-38-3/436281-3/87/8
32-41-3/438-1/2281-5/815/16
34-43-3/440-1/2321-5/815/16
36-4642-3/4321-5/81
38-48-3/445-1/4321-5/81
40-50-3/447-1/4361-5/81
42-5349-1/2361-5/81-1/8
44-55-1/451-3/4401-5/81-1/8
46-57-1/453-3/4401-5/81-1/8
48-59-1/256441-5/81-1/4
50-61-3/458-1/4441-7/81-1/4
52-6460-1/2441-7/81-1/4
54-66-1/462-3/4441-7/81-3/8
60-7369-1/4521-7/81-1/2
66-8076521-7/81-5/8
72-86-1/282-1/2601-7/81-3/4
78-9389642-1/82
84-99-3/495-1/2642-1/82
90-106-1/2102682-3/82-1/4
96-113-1/4108-1/2682-3/82-1/4
102-120114-1/2722-5/82-1/2
108-126-3/4120-3/4722-5/82-1/2
114-133-1/2126-3/4762-7/82-3/4
120-140-1/4132-3/4762-7/82-3/4
126-147139-1/4803-1/83
132-153-3/4145-3/4803-1/83
138-160-1/2152843-3/83-1/4
144-167-1/4158-1/4843-3/83-1/4

Supplier of Low Alloy Steel Lap Joint Flanges and AS Socket Weld Flange offers hydrostatic pressure testing

Temperature °C *ATemperature °F *AMax. Allowable Stress, ksiMax. Allowable Stress, MPa
-30-40-20-10025.7177
8520025.7177
10030025.3177
12540024.5177
15050023.8174
20060023.2169
25065022.8165
30070022.4161
32575021.9159
35080021.4156
37585020.8154
40090020.1151
42595019.2148
450100018.3144
475105015.7*B140
500110012.0*B135
525115019.2*B129
550120018.3*B123
575--99.5*B
600--77.0*B
625--56.5*B
650*C--38.3*B
Number of Bolt / StudBolt Tightening Sequence to Follow
4 bolt Flange1,3,2,4
8 bolt Flange1,5,3,7,2,6,4,8
12 bolt Flange1,7,4,10,2,8,5,11,3,9,6,12
16 bolt Flange1,9,5,13,3,11,7,15,2,10,6,14,4,12,8,16
20 bolt Flange1,11,6,16,3,13,8,18,5,15,10,20,2,12,7,17,4,14,9,19
24 bolt Flange1,13,7,19,4,16,10,22,2,14,8,20,5,17,11,23,6,18,12,24,3,15,9,21
28 bolt Flange1,15,8,22,4,18,11,25,6,20,13,27,2,16,9,23,5,19,12,26,3,17,10,24,7,21,14,28
32 bolt Flange1,17,9,25,5,21,13,29,3,19,11,27,7,23,15,31,2,18,10,26,6,22,14,30,8,24,16,32,4,20,12,28
Alloy Steel Flanges Price Per Piece in India Price Applicable for jan 2022 to june 2022 Price Applicable for July 2022 to December 2022
BL-RTJ LOW ALLOY STEEL 1 FLANGE. BLIND CL1500 RTJ Per Unit US $203.29 US $205.29
FLANGE ALLOY STEEL 2500# RF RF LONG WELD NECK FLANGE 290MM LONG SA-182 Per Kg US $40.24 US $42.24
BLIND RTJ FLANGE FORGED CONF. TO SPECN. Alloy Steel CL3 Per kg US $5.25 US $7.25
Alloy Steel Raised Face Slip on Flange Per kg US $15 US $17
ANSI Class 150 Forged Threaded Alloy Steel Flanges Per kg US $7.5 US $9.5
ASME B16.5 RF 150lb Forged Alloy Steel SW Flange Per kg US $8.6 US $10.6

Before purchasing, compare our price to that of other Alloy Steel Flanges manufacturers in India. This is a rough estimate of Low Alloy Steel Blind Flanges prices in India. Please contact us for the most up-to-date stocklist of Chromoly Alloy Slip on Flanges in Mumbai.

Grade C Mn Si P S Cr Mo
F1 0.15 max 0.3-0.6 0.5 0.03 0.03 4-6 0.44-0.65
F5 0.15 max 0.3-0.6 0.5-1.0 0.03 0.03 4-6 0.44-0.65
F9 0.15 max 0.3-0.6 0.5-1.0 0.03 0.03 8-10 0.9-1.1
F11 0.5-0.15 0.3-0.6 0.5-1.0 0.03 0.03 1.0-1.5 0.44-0.65
F12 0.15 max 0.3-0.6 0.5 0.03 0.03 4-6 0.44-0.65
F22 0.50.15 max 0.3-0.6 0.5 0.03 0.03 4-6 0.44-0.65
F91 0.15 max 0.3-0.6 0.5-1.0 0.03 0.03 8-10 0.9-1.1
Manufacturer of AS Plate Flange and Alloy Steel Forged Flanges in RF, FF and RTJ finish suitable for high/ low/ medium temperature
Grade Tensile Strength Yield Strength (0.2%Offset) Elongation
F1 275 485 20 %
F5 275 485 20 %
F9 380 585 20 %
F11 205 415 20 %
F12 275 485 20 %
F22 205 415 20 %
F91 380 585 20 %
TRADE DESIGNATION ASTM A182 ALLOY STEEL FLANGE RECOMMENDED SERVICE
C-1/2 Mo Low Alloy Steel A182 F1 Applications that aren't corrosive including Water, oil, and gases at temperatures ranging from -29 to 593oC* (not for sustained usage > 470oC).
0.75% Ni; Mo; 0.75% Cr Low Alloy Steel A182 F2 Non-corrosive applications including oil, water,and gases at temperatures F2:-29ºC ~ 538ºC, WC5: -29ºC ~ 575ºC
1 1/4% Chrome; 1/2% Moly Low Alloy Steel A182 F11 Water, oil, and gases at temperatures ranging from -30°C (-20°F) to +593°C (+1100°F) are examples of non-corrosive uses.
2 1/4% Chrome Low Alloy Steel A182 F22 At temperatures ranging from -30°C (-20°F) to +593°C (+1100°F), non-corrosive applications such as water, oil, and gases are used.
5% Chrome; 1/2% Moly, Medium Alloy Steel A182 F5/F5a Mild erosive or corrosive applications as well as non-corrosive applications at temperatures between -30ºC (-20ºF) and +650ºC (+1200ºF).
9% Chrome; 1% Moly, Medium Alloy Steel A182 F9 At temperatures ranging from -30oC (-20oF) to +650oC (+1200oF), mild corrosive or erosive applications, as well as non-corrosive applications, are possible.
9% Chrome; 1% Moly; V-N, Medium Alloy Steel A182 F91 At temperatures ranging from -30°C (-20°F) to +650°C (+1200°F), mild corrosive or erosive applications, as well as non-corrosive applications, are possible.
1/2" Flange Diameter Diameter of Bolts Diameter of Raised Face No. of Bolt Holes Diameter of Holes PCD Height of Raised Face
PN6 80 M10 40 4 11 55 2
PN10 95 M12 45 4 14 65 2
PN16 95 M12 45 4 14 65 2
PN25 95 M12 45 4 14 65 2
PN40 95 M12 45 4 14 65 2
PN64 105 M12 45 4 14 75 2
Table D 3 3/4" (95) 1/2" (13) 4 9/16" (14) 2 5/8" (67)
Table E 3 3/4" (95) 1/2" (13) 4 9/16" (14) 2 5/8" (67)
Table F 3 3/4" (95) 1/2" (13) 4 9/16" (14) 2 5/8" (67)
Table H 4 1/2" (114) 5/8" (16) 2 1/4" (57) 4 11/16" (17) 3 1/4" (83) 1/16" (2)
ANSI 125/150 3 1/2" (89) 1/2" (13) 1 3/8" (35) 4 5/8" (16) 2 3/8" (60) 1/16" (2)
ANSI 300 3 3/4" (95) 1/2" (13) 1 3/8" (35) 4 5/8" (16) 2 5/8" (67) 1/16" (2)
1" Flange Diameter Diameter of Raised Face Diameter of Holes PCD Diameter of Bolts No. of Bolt Holes Height of Raised Face
PN6 100 60 11 75 M10 4 2
PN10 115 68 14 85 M12 4 2
PN16 115 68 14 85 M12 4 2
PN25 115 68 14 85 M12 4 2
PN40 115 68 14 85 M12 4 2
PN64 140 68 18 100 M16 4 2
Table D 4 1/2" (114) 9/16" (14) 3 1/4" (83) 1/2" (13) 4
Table E 4 1/2" (114) 9/16" (14) 3 1/4" (83) 1/2" (13) 4
Table F 4 3/4" (121) 2 1/2" (64) 11/16" (17) 3 7/16" (87) 5/8" (16) 4 1/16" (2)
Table H 4 3/4" (121) 2 1/2" (64) 11/16" (17) 3 7/16" (87) 5/8" (16) 4 1/16" (2)
ANSI 125/150 4 1/4" (108) 2" (51) 5/8" (16) 3 1/8" (79) 1/2" (13) 4 1/16" (2)
ANSI 300 4 7/8" (124) 2" (51) 3/4" (19) 3 1/2" (89) 5/8" (16) 4 1/16" (2)
1 1/2" Diameter of Bolts Flange Diameter Diameter of Raised Face No. of Bolt Holes Diameter of Holes PCD Height of Raised Face
PN6 M12 130 80 4 14 100 3
PN10 M16 150 88 4 18 110 3
PN16 M16 150 88 4 18 110 3
PN25 M16 150 88 4 18 110 3
PN40 M16 150 88 4 18 110 3
PN64 M20 170 88 4 22 125 3
Table D 1/2" (13) 5 1/4" (133) 4 9/16" (14) 3 7/8" (98)
Table E 1/2" (13) 5 1/4" (133) 4 9/16" (14) 3 7/8" (98)
Table F 5/8" (16) 5 1/2" (140) 4 11/16" (17) 4 1/8" (105)
Table H 5/8" (16) 5 1/2" (140) 3 1/4" (83) 4 11/16" (17) 4 1/8" (105) 1/16" (2)
ANSI 125/150 1/2" (13) 5" (127) 2 7/8" (73) 4 5/8" (16) 3 7/8" (98) 1/16" (2)
ANSI 300 3/4" (19) 6 1/8" (156) 2 7/8" (73) 4 7/8" (22) 4 1/4" (114) 1/16" (2)

The flange protectors help to protect the entire surface of the pipe flange. By doing so, the risk of contamination can be reduced. The protectors ensure that the flanges are completely sealed off from their surrounding environment.
The pipe flange is an important accessory used across several industries like oil, gas and other utility industries. Protecting the flange is not only essential for preventing contamination, but it also helps to avoid the potential damage that might be caused during the manufacturing and transportation process. With proper protection, the flanges can get highly damaged and they might need high-cost repairs. Sometimes, the damages are too high to repair and that would need a product exchange, which would involve greater costs.
The flange face can be defined as a gasket that basically seals off the surface of the flange. Whether the connection is a vessel, valve or any other mechanical equipment, the flange face is required for all. The gasket helps in sealing the flanges, and thus offers total protection.

The large diameter flanges are used for assembling large pipes. They are available in different types like slip on, weld neck and blind, which are also commonly used large diameter flanges. Depending on the type of large diameter flange, they are used for a wide range of applications in various industries such as food, oil and gas processing, construction, power plants, etc.
The large diameter flanges are mostly manufactured for use in tank equipment and large-scale furnaces; it helps to strengthen and improve the piping connections. These are manufactured in small batches or as single pieces. Conventionally, a circular plate is cut according to the size of the whole steel plate. The inner circle is then cut on the circular plate. It is a simple process but manufacturing needs some operational space. Forging is also required for slip-on and weld neck large diameter flanges.However, it is to be noted that the dimensional tolerance and roundness of the large diameter flanges are not as high as the smaller flanges.

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SA182 Grade F92 Tongue & Groove Flange

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HS Code 73079190 Alloy Steel Flange
  • Manufacturer code or logo
  • ASTM material code
  • Size
  • Heat Number
  • Thickness (Schedule)
  • Special designations
  • Material Grade
  • Service rating (Pressure-temperature Class)
NPS (Nominal Pipe Size) NPT (Threaded) WRNR (Weld Neck) SWRF (Socket Weld) Loose (Lap Joint) SORF (Slip On) BLRF (Blind)
½ 1 2 2 1 1 2
¾ 2 2 2 2 2 2
1 2 3 2 2 2 2
1¼ 3 3 3 3 3 3
1½ 3 4 3 3 3 4
2 5 6 5 5 5 5
2½ 8 10 8 8 8 7
3 9 11.5 9 9 9 9
3½ 12 12 11 11 11 13
4 13 16.5 13 13 13 17
5 15 21 15 15 15 20
6 19 26 19 19 19 27
8 30 42 30 30 30 47
10 43 54 43 43 43 70
12 64 88 64 64 64 123
14 90 114 90 105 90 140
16 98 140 98 140 106 180
18 130 165 130 160 130 220
20 165 197 165 195 165 285
22 185 225 185 245 185 355
24 220 268 220 275 220 430

Chromoly Alloy Steel Slip On Flange Dimensions

Size in Inch Size in mm No of Bolts Outer Dia. Hub OD ISO Stud Size Flange Length RF Height Flange Thick. RF Dia. PCD Hole Size Socket Bore Weight in kg
A C D F B E G H
1/2 15 4 90 30 M14 14 2 9.6 34.9 60.3 5/8 22.2 0.8
1 25 4 110 49 M14 16 2 12.7 50.8 79.4 5/8 34.5 0.9
3/4 20 4 100 38 M14 14 2 11.2 42.9 69.9 5/8 27.7 0.9
1 1/4 32 4 115 59 M14 19 2 14.3 63.5 88.9 5/8 43.2 1.4
2 50 4 150 78 M16 24 2 17.5 92.1 120.7 3/4 61.9 2.3
1 1/2 40 4 125 65 M14 21 2 15.9 73 98.4 5/8 49.5 1.4
2 1/2 65 4 180 90 M16 27 2 20.7 104.8 139.7 3/4 74.6 3.2
3 80 4 190 108 M16 29 2 22.3 127 152.4 3/4 90.7 3.7
4 100 8 230 135 M16 32 2 22.3 157.2 190.5 3/4 116.1 5.9
3 1/2 90 8 215 122 M16 30 2 22.3 139.7 177.8 3/4 103.4 5
5 125 8 255 164 M20 35 2 22.3 185.7 215.9 7/8 143.8 6.8
8 200 8 345 246 M20 43 2 27 269.9 298.5 7/8 221.5 13.7
10 250 12 405 305 M24 48 2 28.6 323.8 362 1 276.2 19.5
6 150 8 280 192 M20 38 2 23.9 215.9 241.3 7/8 170.7 8.6
12 300 12 485 365 M24 54 2 30.2 381 431.8 1 327 29
24 600 20 815 663 M33 81 2 46.1 692.2 749.3 1 3/8 616 100
16 400 16 595 457 M27 62 2 35 469.9 539.8 1 1/8 410.5 54
18 450 16 635 505 M30 67 2 38.1 533.4 577.9 1 1/4 461.8 59
14 350 12 535 400 M27 56 2 33.4 412.8 476.3 1 1/8 359.2 41
20 500 20 700 559 M30 71 2 41.3 584.2 635 1 1/4 513.1 75

Alloy Steel Blind Flange Dimensions

Size in Inch Size in mm ISO Stud Size RF Height Outer Dia. RF Dia. Hole Size PCD No of Bolts Bolt Size UNC Flange Thickness RF Stud Length Weight in kg
D A C E B
1/2 15 M20 7 135 34.9 7/8 88.9 4 3/4 30.2 120 3.2
3/4 20 M20 7 140 42.9 7/8 95.2 4 3/4 31.8 125 3.7
1 25 M24 7 160 50.8 1 108 4 7/8 35 140 5
1 1/4 32 M27 7 185 63.5 1 1/8 130.2 4 1 38.1 150 7.8
1 1/2 40 M30 7 205 73 1 1/4 146 4 1 1/8 44.5 170 10.5
2 50 M27 7 235 92.1 1 1/8 171.4 8 1 50.9 180 18
2 1/2 65 M30 7 265 104.8 1 1/4 196.8 8 1 1/8 57.2 195 25.5
3 80 M33 7 305 127 1 3/8 228.6 8 1 1/4 66.7 220 39
4 100 M39 7 355 157.2 1 5/8 273 8 1 1/2 76.2 255 61.5
5 125 M45 7 420 185.7 1 7/8 323.8 8 1 3/4 92.1 300 102
6 150 M52 7 485 215.9 2 1/8 368.3 8 2 108 345 157
8 200 M52 7 550 269.9 2 1/8 438.2 12 2 127 380 241
10 250 M64 7 675 323.8 2 5/8 539.8 12 2 1/2 165.1 490 470
12 300 M72 7 760 381 2 7/8 619.1 12 2 3/4 184.2 540 575

Alloy Steel Weld Neck Flange Dimensions

Flange NPS H Inside
Diameter		 Flat Face
Thickness (T2)		 Outside
Diameter		 Raised Face
(RF)		 Raised Face
(R)		 H1 Raised Face
Thickness (T)		 T1 Bolt Circle
(BC)		 Bolt Hole
(B)		 No. of
Bolt Holes
1/2" 1.19" 0.62" 1.82" 3.50" .063" 1.38" 0.84" 1.88" .38" 2.38" .62" 4
1-1/4" 2.31" 1.38" 2.19" 4.62" .063" 2.50" 1.66" 2.25" .56" 3.50" .62" 4
3/4" 1.50" 0.82" 2.00" 3.88" .063" 1.69" 1.05" 2.06" .44" 2.75" .62" 4
1-1/2" 2.56" 1.61" 2.38" 5.00" .063" 2.88" 1.90" 2.44" .62" 3.88" .62" 4
1" 1.94" 1.05" 2.13" 4.25" .063" 2.00" 1.32" 2.19" .50" 3.12" .62" 4
2" 3.06" 2.07" 2.44" 6.00" .063" 3.62" 2.38" 2.50" .69" 4.75" .75" 4
2-1/2" 3.56" 2.47" 2.69" 7.00" .063" 4.12" 2.88" 2.75" .82" 5.50" .75" 4
3" 4.25" 3.07" 2.69" 7.50" .063" 5.00" 3.50" 2.75" .88" 6.00" .75" 4
4" 5.31" 4.03" 2.94" 9.00" .063" 6.19" 4.50" 3.00" .88" 7.50" .75" 8
5" 6.44" 5.05" 3.44" 10.00" .063" 7.31" 5.56" 3.50" .88" 8.50" .88" 8
3-1/2" 4.81" 3.55" 2.75" 8.50" .063" 5.50" 4.00" 2.81" .88" 7.00" .75" 8
6" 7.56" 6.07" 3.44" 11.00" .063" 8.50" 6.63" 3.50" .94" 9.50" .88" 8
8" 9.69" 7.98" 3.94" 13.50" .063" 10.62" 8.63" 4.00" 1.06" 11.75" .88" 8
22" 24.25" 21.25" 5.82" 29.50" .063" 25.25" 22.00" 5.88" 1.75" 27.25" 1.38" 20
10" 12.00" 10.02" 3.94" 16.00" .063" 12.75" 10.75" 4.00" 1.13" 14.25" 1.00" 12
12" 14.38" 12.00" 4.44" 19.00" .063" 15.00" 12.75" 4.50" 1.19" 17.00" 1.00" 12
16" 18.00" 15.25" 4.94" 23.50" .063" 18.50" 16.00" 5.00" 1.38" 21.25" 1.12" 16
18" 19.88" 17.25" 5.44" 25.00" .063" 21.00" 18.00" 5.50" 1.50" 22.75" 1.25" 16
14" 15.75" 13.25" 4.94" 21.00" .063" 16.25" 14.00" 5.00" 1.32" 18.75" 1.12" 12
20" 22.00" 19.25" 5.63" 27.50" .063" 23.00" 20.00" 5.69" 1.63" 25.00" 1.25" 20
24" 26.12" 23.25" 5.94" 32.00" .063" 27.25" 24.00" 6.00" 1.82" 29.50" 1.38" 20
Temperature °F Class 150 Class 600 Class 1500 Class 400 Class 900 Class 300 Class 2500
-20 to 100 275 1440 3600 960 2160 720 6000
300 205 1080 2700 720 1620 540 4500
200 230 1200 3000 800 1800 600 5000
400 190 995 2485 660 1490 495 4140
600 140 875 2185 580 1310 435 3640
650 125 860 2150 575 1290 430 3580
500 170 930 2330 620 1395 465 3880
700 110 850 2125 565 1275 425 3540
750 95 830 2075 555 1245 415 3460
850 65 790 1980 530 1190 395 3300
800 80 805 2015 540 1210 405 3360
900 50 780 1945 520 1165 390 3240
950 35 765 1910 510 1145 380 3180
1000 20 640 1605 430 965 320 2675
1100 20 515 1285 345 770 255 2145
1150 20 400 995 265 595 200 1655
1050 20 615 1545 410 925 310 2570
1200 20 310 770 205 465 155 1285
1250 20 225 565 150 340 115 945
1300 20 170 430 115 255 85 715
1400 20 95 240 65 145 50 400
1350 20 125 310 80 185 60 515
1450 15 70 170 45 105 35 285
1500 10 55 135 35 80 25 230
  • Ship Building
  • Marine Applications
  • Paper & Pulp
  • Nuclear Power
  • Power Plants
  • Oil And Gas Industry
  • Refineries
  • Fossil Fuel Power Plants
  • Good impact resistance
  • Improved rigidity
  • Robust wear resistance
  • Strong creep strength
  • Easy to fabricate
  • Superior hardenability

ASTM A182 F92 Weld Neck Flange vs SA182 F92 Slip On Flange
The ASTM A182 F92 flanges are used for various applications across a wide range of industries, like chemical, engineering, metallurgy, oil and gas, shipping, food, and many more. There are different types of flanges available, and each of them have varied usage due to the difference in their structural design.
The welding form of both the flanges are quite different. While the weld neck flange can be radiographed, the same cannot be executed on the slip on flange. The welding for weld neck flange is a circular weld, while it is a fillet weld in case of a slip on flange.
The materials used for making the flanges are also quite different. Weld neck flanges are made by machining the parts of forged steel. The slip-on flange conforms the steel plate thickness requirements and are basically made by machining.
Also the nominal pressure of both the flanges are quite different. Weld neck flanges possess higher nominal pressure compared to the slip on flange. Thus its ability to adapt to stress will also be lower.
Finally, the connection mode of both the flanges are quite different. They have different structures, which is why weld neck flanges are mostly used in severe or critical conditions, whereas the slip-on flanges are mostly used in low pressure applications.

Hydrostatic Test Pressure(psig)
ASTM
Specification		 Class
150 300 400 600 900 1500 2500
A182-F1
 400 1050 1400 2100 3150 5225 8700
A182-F2
 450 1125 1500 2250 3375 5625 9375
A182-F12
A182-F11
 450 1125 1500 2250 3375 5625 9375

Flanges Material



Pipe Fittings Material



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