It is difficult for a component to withstand high temperature environments, especially since heat, and in some cases, moisture developed by heat has a tendency to corrode the metal. For an alloy to exhibit good resistance to thermal environments, they need to have a composition that permits their stability. For instance, the chemical composition of ASTM A182 F11 Flange contains small amounts of elements like chromium, molybdenum, silicon, and manganese, all of which allow the component to act in an efficient manner despite being situated in a high thermal zone.
There are specifications that permit the manufacturer to produce flanges of low alloy steel grades that could be used in such environments. The Asme Sa182 F11 Class 2 Flange, which belongs to this category of steel is useful in demanding high temperature settings. However, they are not recommended to be used in applications that require corrosion resistance because they lack a higher content of the above mentioned elements in their chemical composition. But in comparison to basic carbon steel alloys, the corrosion resistance properties of ASTM A182 F11 Blind Flanges are enhanced. Though this is not the only parameter where low alloy steels supersede carbon steel alloys. In fact, the inclusion of even trace amounts of chromium and molybdenum in their alloy improves their tensile and yield strength, toughness, and durability. Increasing their yield strength is possible by using heat treatments on the Astm A182 Alloy Steel F11 Flanges. Typically heat treatments used on the alloy include tempering, annealing, and normalizing, all of which serve their respective purposes. Tempering generally reduces the high hardness achieved by the Alloy Steel F11 Slip On Flanges after it has been quenched, causing it to balance this property without the alloy becoming susceptible to embrittlement. Annealing and normalizing the Sa182 F11 Pipe Flanges improves ductility, agility, strength, toughness while making the grains of the metal more uniform.
| Specifications List | ASTM A182 / ASME SA182 |
|---|---|
| Size range | 1/2 to 48 Inch |
| Standard DIN | 6, 16, 10, 40, 25 Bar/ PN6 PN16 PN10 PN40 PN25, PN64 |
| Standard ANSI | Class 150 LBS to 2500 LBS |
| Standard UNI | 6, 16, 10, 40, 25 Bar |
| Standard JIS | 6, 16, 10 30, 20, 63, 40 K |
| Standard EN | 6, 16, 16, 40, 25 Bar |
| Flange Face Type | Lap-Joint Face, Raised Face, Flat Face, Small Tongue, Large Male-Female, Ring Type Joint, Small Male-Female, Large Tongue & Groove Flanges manufacturer and Supplier |
| Flanges Marking | All Flanges are marked as follows: Supplier or Manufacturer’s Name, Size, Class, Bore, Dimension, Material, Heat No. Or according to the customer’s request. |
Astm A182 F11 Cl2 Alloy Steel Class 150 Npt Flanges
Alloy Steel Astm A182 F11 Slip On Flanges
F11 Cl2 Alloy Steel Ansi B16.5 Blind 900# 4 Flanges
Astm A182 F11 Forged Threaded Flanges
F11 Alloy Steel Flat Face Ff Flanges
Astm A182 Gr F11 Wn Bl Sw Blind Flanges
Astm A182 Alloy Steel F11 Dn80 Threaded Flanges
Astm A182 F11 Alloy Steel Plate Flanges
Forged 1/2-24 Inch Astm A182 F11 So Blind Flanges
Astm A182 F11 Alloy Steel Weld Neck Raised Face Flanges
Forged Asme B16.5 Asme Sa182 Gr F11 So Wn Flanges
Alloy Steel Astm A182 F11 Wn Flanges Asme B16.5
| Temperature °F | Class 150 LBS | Class 300 LBS | Class 400 LBS | Class 600 LBS | Class 900 LBS | Class 1500 LBS | Class 2500 LBS |
| -20 to 100 | 265 | 695 | 925 | 1390 | 2085 | 3470 | 5785 |
| 200 | 260 | 680 | 905 | 1360 | 2035 | 3395 | 5660 |
| 800 | 80 | 510 | 675 | 1015 | 1525 | 2540 | 4230 |
| 400 | 200 | 640 | 855 | 1280 | 1920 | 3200 | 5330 |
| 500 | 170 | 620 | 830 | 1245 | 1865 | 3105 | 5180 |
| 600 | 140 | 605 | 805 | 1210 | 1815 | 3025 | 5040 |
| 650 | 125 | 590 | 785 | 1175 | 1765 | 2940 | 4905 |
| 700 | 110 | 570 | 755 | 1135 | 1705 | 2840 | 4730 |
| 300 | 230 | 655 | 870 | 1305 | 1955 | 3260 | 5435 |
| 750 | 95 | 530 | 710 | 1065 | 1595 | 2660 | 4430 |
| 1000 | 20 | 165 | 220 | 330 | 495 | 825 | 1370 |
| 850 | 65 | 485 | 650 | 975 | 1460 | 2435 | 4060 |
| 900 | 50 | 450 | 600 | 900 | 1350 | 2245 | 3745 |
| 950 | 35 | 280 | 375 | 560 | 845 | 1405 | 2345 |
| Nominal Pipe Size | Dimension | Weight in Kg | ||||
|---|---|---|---|---|---|---|
| Normal Pipe Size (Inche) |
Diameter Nominal | Flange Outer Diameter in MM |
Flange Thickness in MM |
Socket Weld | Weld Neck | Blind |
| 8 | 200 | 342.9 | 28.4 | 12.1 | 17.6 | 19.6 |
| 3/4 | 20 | 98.6 | 12.7 | 0.6 | 0.7 | 0.6 |
| 1 | 25 | 108 | 14.2 | 0.8 | 1 | 0.9 |
| 1 1/4 | 32 | 117.3 | 15.7 | 1 | 1.3 | 1.2 |
| 1 1/2 | 40 | 127 | 17.5 | 1.3 | 1.7 | 1.5 |
| 2 | 50 | 152.4 | 19.1 | 2.1 | 2.6 | 2.4 |
| 2 1/2 | 65 | 177.8 | 22.4 | 3.3 | 4.1 | 3.9 |
| 1/2 | 15 | 88.9 | 11.2 | 0.4 | 0.5 | 0.4 |
| 3 | 80 | 190.5 | 23.9 | 3.9 | 4.9 | 4.9 |
| 24 | 600 | 812.8 | 47.8 | 86.9 | 115 | 185.0 |
| 3 1/2 | 90 | 215.9 | 23.9 | 4.8 | 6.1 | 6.2 |
| 4 | 100 | 228.6 | 23.9 | 5.3 | 6.8 | 7.0 |
| 5 | 125 | 254 | 23.9 | 6.1 | 8.6 | 8.6 |
| 6 | 150 | 279.4 | 25.4 | 7.5 | 10.6 | 11.3 |
| 10 | 250 | 406.4 | 30.2 | 16.5 | 24 | 28.6 |
| 14 | 350 | 533.4 | 35.1 | 34.6 | 48.4 | 58.1 |
| 12 | 300 | 482.6 | 31.8 | 26.2 | 36.5 | 43.2 |
| 16 | 400 | 596.9 | 36.6 | 44.8 | 60.6 | 76.1 |
| 18 | 450 | 635 | 39.6 | 48.9 | 68.3 | 93.7 |
| 20 | 500 | 698.5 | 42.9 | 61.9 | 84.5 | 122.0 |
| Nominal Pipe sizes in Inches | Number of bolts used | Diameter of Flange in inches | Diameter of Bolt Holes in Inches | Diameter of Bolts in Inches | Bolt Circle in Inches |
|---|---|---|---|---|---|
| 1/4 | 4 | 3-3/8 | 0.62 | 1/2 | 2-1/4 |
| 1/2 | 4 | 3-1/2 | 0.62 | 1/2 | 2-3/8 |
| 3/4 | 4 | 3-7/8 | 0.62 | 1/2 | 2-3/4 |
| 1 | 4 | 4-1/4 | 0.62 | 1/2 | 3-1/8 |
| 1-1/4 | 4 | 4-5/8 | 0.62 | 1/2 | 3-1/2 |
| 1-1/2 | 4 | 5 | 0.62 | 1/2 | 3-7/8 |
| 2 | 4 | 6 | 0.75 | 5/8 | 4-3/4 |
| 2-1/2 | 4 | 7 | 0.75 | 5/8 | 5-1/2 |
| 3 | 4 | 7-1/2 | 0.75 | 5/8 | 6 |
| 3-1/2 | 8 | 8-1/2 | 0.75 | 5/8 | 7 |
| 4 | 8 | 9 | 0.75 | 5/8 | 7-1/2 |
| 5 | 8 | 10 | 0.88 | 3/4 | 8-1/2 |
| 6 | 8 | 11 | 0.88 | 3/4 | 9-1/2 |
| 8 | 8 | 13-1/2 | 0.88 | 3/4 | 11-3/4 |
| 10 | 12 | 16 | 1 | 7/8 | 14-1/4 |
| 12 | 12 | 19 | 1 | 7/8 | 17 |
| 14 | 12 | 21 | 1.12 | 1 | 18-3/4 |
| 16 | 16 | 23-1/2 | 1.12 | 1 | 21-1/4 |
| 18 | 16 | 25 | 1.25 | 1-1/8 | 22-3/4 |
| 20 | 20 | 27-1/2 | 1.25 | 1-1/8 | 25 |
| 24 | 20 | 32 | 1.38 | 1-1/4 | 29-1/2 |
| Nominal Pipe Size in Inch | Number of Bolt used | Bolt Circle in inch | Diameter of Bolts in inch | Diameter of Flange in inch | Diameter of Bolt Holes in inch |
|---|---|---|---|---|---|
| 1/4 | 4 | 2-1/4 | 1/2 | 3-3/8 | 0.62 |
| 1/2 | 4 | 2-5/8 | 1/2 | 3-3/4 | 0.62 |
| 3/4 | 4 | 3-1/4 | 5/8 | 4-5/8 | 0.75 |
| 1 | 4 | 3-1/2 | 5/8 | 4-7/8 | 0.75 |
| 1-1/4 | 4 | 3-7/8 | 5/8 | 5-1/4 | 0.75 |
| 1-1/2 | 4 | 4-1/2 | 3/4 | 6-1/8 | 0.88 |
| 2 | 8 | 5 | 5/8 | 6-1/2 | 0.75 |
| 2-1/2 | 8 | 5-7/8 | 3/4 | 7-1/2 | 0.88 |
| 3 | 8 | 6-5/8 | 3/4 | 8-1/4 | 0.88 |
| 3-1/2 | 8 | 7-1/4 | 3/4 | 9 | 0.88 |
| 4 | 8 | 7-7/8 | 3/4 | 10 | 0.88 |
| 5 | 8 | 9-1/4 | 3/4 | 11 | 0.88 |
| 6 | 12 | 10-5/8 | 3/4 | 12-1/2 | 0.88 |
| 8 | 12 | 13 | 7/8 | 15 | 1 |
| 10 | 16 | 15-1/4 | 1 | 17-1/2 | 1.12 |
| 12 | 16 | 17-3/4 | 1-1/8 | 20-1/2 | 1.25 |
| 14 | 20 | 20-1/4 | 1-1/8 | 23 | 1.25 |
| 16 | 20 | 22-1/2 | 1-1/4 | 25-1/2 | 1.38 |
| 18 | 24 | 24-3/4 | 1-1/4 | 28 | 1.38 |
| 20 | 24 | 27 | 1-1/4 | 30-1/2 | 1.38 |
| 24 | 24 | 32 | 1-1/2 | 36 | 1.62 |
| Nominal Pipe Sizes in Inch | Diameter of Bolt Holes in inch | Number of Bolt used | Diameter of Flange in inch | Diameter of Bolts in inch | Bolt Circle in inch |
|---|---|---|---|---|---|
| 1/4 | 0.62 | 4 | 3-3/8 | 1/2 | 2-1/4 |
| 1/2 | 0.62 | 4 | 3-3/4 | 1/2 | 2-5/8 |
| 3/4 | 0.75 | 4 | 4-5/8 | 5/8 | 3-1/4 |
| 1 | 0.75 | 4 | 4-7/8 | 5/8 | 3-1/2 |
| 1-1/4 | 0.75 | 4 | 5-1/4 | 5/8 | 3-7/8 |
| 1-1/2 | 0.88 | 4 | 6-1/8 | 3/4 | 4-1/2 |
| 2 | 0.75 | 8 | 6-1/2 | 5/8 | 5 |
| 2-1/2 | 0.88 | 8 | 7-1/2 | 3/4 | 5-7/8 |
| 3 | 0.88 | 8 | 8-1/4 | 3/4 | 6-5/8 |
| 3-1/2 | 1 | 8 | 9 | 7/8 | 7-1/4 |
| 4 | 1 | 8 | 10 | 7/8 | 7-7/8 |
| 5 | 1 | 8 | 11 | 7/8 | 9-1/4 |
| 6 | 1 | 12 | 12-1/2 | 7/8 | 10-5/8 |
| 8 | 1.12 | 12 | 15 | 1 | 13 |
| 10 | 1.25 | 16 | 17-1/2 | 1-1/8 | 15-1/4 |
| 12 | 1.38 | 16 | 20-1/2 | 1-1/4 | 17-3/4 |
| 14 | 1.38 | 20 | 23 | 1-1/4 | 20-1/4 |
| 16 | 1.5 | 20 | 25-1/2 | 1-3/8 | 22-1/2 |
| 18 | 1.5 | 24 | 28 | 1-3/8 | 24-3/4 |
| 20 | 1.62 | 24 | 30-1/2 | 1-1/2 | 27 |
| 24 | 1.88 | 24 | 36 | 1-3/4 | 32 |
| Nominal Pipe Sizes in Inch | Number of Bolt Used | Bolt Circle in inch | Diameter of Bolts in inch | Diameter of Flange in inch | Diameter of Bolt Holes in inch |
|---|---|---|---|---|---|
| 1/4 | 4 | 2-1/4 | 1/2 | 3-3/8 | 0.62 |
| 1/2 | 4 | 2-5/8 | 1/2 | 3-3/4 | 0.62 |
| 3/4 | 4 | 3-1/4 | 5/8 | 4-5/8 | 0.75 |
| 1 | 4 | 3-1/2 | 5/8 | 4-7/8 | 0.75 |
| 1-1/4 | 4 | 3-7/8 | 5/8 | 5-1/4 | 0.75 |
| 1-1/2 | 4 | 4-1/2 | 3/4 | 6-1/8 | 0.88 |
| 2 | 8 | 5 | 5/8 | 6-1/2 | 0.75 |
| 2-1/2 | 8 | 5-7/8 | 3/4 | 7-1/2 | 0.88 |
| 3 | 8 | 6-5/8 | 3/4 | 8-1/4 | 0.88 |
| 3-1/2 | 8 | 7-1/4 | 7/8 | 9 | 1 |
| 4 | 8 | 8-1/2 | 7/8 | 10-3/4 | 1 |
| 5 | 8 | 10-1/2 | 1 | 13 | 1.12 |
| 6 | 12 | 11-1/2 | 1 | 14 | 1.12 |
| 8 | 12 | 13-3/4 | 1-1/8 | 16-1/2 | 1.25 |
| 10 | 16 | 17 | 1-1/4 | 20 | 1.38 |
| 12 | 20 | 19-1/4 | 1-1/4 | 22 | 1.38 |
| 14 | 20 | 20-3/4 | 1-3/8 | 23-3/4 | 1.5 |
| 16 | 20 | 23-3/4 | 1-1/2 | 27 | 1.62 |
| 18 | 20 | 25-3/4 | 1-5/8 | 29-1/4 | 1.75 |
| 20 | 24 | 28-1/2 | 1-5/8 | 32 | 1.75 |
| 24 | 24 | 33 | 1-7/8 | 37 | 2 |
| Nominal Pipe Sizes in Inch | Diameter of Flange in inch | Diameter of Bolts in inch | Bolt Circle in inch | Diameter of Bolt Holes in inch | Number of Bolt Used |
|---|---|---|---|---|---|
| 1/2 | 4-3/4 | 3/4 | 3-1/4 | 0.88 | 4 |
| 3/4 | 5-1/8 | 3/4 | 3-1/2 | 0.88 | 4 |
| 1 | 5-7/8 | 7/8 | 4 | 1 | 4 |
| 1-1/4 | 6-1/4 | 7/8 | 4-3/8 | 1 | 4 |
| 1-1/2 | 7 | 1 | 4-7/8 | 1.12 | 4 |
| 2 | 8-1/2 | 7/8 | 6-1/2 | 1 | 8 |
| 2-1/2 | 9-5/8 | 1 | 7-1/2 | 1.12 | 8 |
| 3 | 9-1/2 | 7/8 | 7-1/2 | 1 | 8 |
| 4 | 11-1/2 | 1-1/8 | 9-1/4 | 1.25 | 8 |
| 5 | 13-3/4 | 1-1/4 | 11 | 1.38 | 8 |
| 6 | 15 | 1-1/8 | 12-1/2 | 1.25 | 12 |
| 8 | 18-1/2 | 1-3/8 | 15-1/2 | 1.5 | 12 |
| 10 | 21-1/2 | 1-3/8 | 18-1/2 | 1.5 | 16 |
| 12 | 24 | 1-3/8 | 21 | 1.5 | 20 |
| 14 | 25-1/4 | 1-1/2 | 22 | 1.62 | 20 |
| 16 | 27-3/4 | 1-5/8 | 24-1/2 | 1.75 | 20 |
| 18 | 31 | 1-7/8 | 27 | 2 | 20 |
| 20 | 33-3/4 | 2 | 29-1/2 | 2.12 | 20 |
| 24 | 41 | 2-1/2 | 35-1/2 | 2.62 | 20 |
| Nominal Pipe Sizes in Inch | Diameter of Bolts in inch | Diameter of Flange in inch | Diameter of Bolt Holes in inch | Number of Bolt Used | Bolt Circle in inch |
|---|---|---|---|---|---|
| 1/2 | 3/4 | 4-3/4 | 0.88 | 4 | 3-1/4 |
| 3/4 | 3/4 | 5-1/8 | 0.88 | 4 | 3-1/2 |
| 1 | 7/8 | 5-7/8 | 1 | 4 | 4 |
| 1-1/4 | 7/8 | 6-1/4 | 1 | 4 | 4-3/8 |
| 1-1/2 | 1 | 7 | 1.12 | 4 | 4-7/8 |
| 2 | 7/8 | 8-1/2 | 1 | 8 | 6-1/2 |
| 2-1/2 | 1 | 9-5/8 | 1.12 | 8 | 7-1/2 |
| 3 | 1-1/8 | 10-1/2 | 1.25 | 8 | 8 |
| 4 | 1-1/4 | 12-1/4 | 1.38 | 8 | 9-1/2 |
| 5 | 1-1/2 | 14-3/4 | 1.62 | 8 | 11-1/2 |
| 6 | 1-3/8 | 15-1/2 | 1.5 | 12 | 12-1/2 |
| 8 | 1-5/8 | 19 | 1.75 | 12 | 15-1/2 |
| 10 | 1-7/8 | 23 | 2 | 12 | 19 |
| 12 | 2 | 26-1/2 | 2.12 | 16 | 22-1/2 |
| 14 | 2-1/4 | 29-1/2 | 2.38 | 16 | 25 |
| 16 | 2-1/2 | 32-1/2 | 2.62 | 16 | 27-3/4 |
| 18 | 2-3/4 | 36 | 2.88 | 16 | 30-1/2 |
| 20 | 3 | 38-3/4 | 3.12 | 16 | 32-3/4 |
| 24 | 3-1/2 | 46 | 3.62 | 16 | 39 |
| Nominal Pipe Sizes in Inch | Diameter of Flange in inch | Bolt Circle in inch | Diameter of Bolts in inch | Number of Bolt Used | Diameter of Bolt Holes in inch |
|---|---|---|---|---|---|
| 1/2 | 5-1/4 | 3-1/2 | 3/4 | 4 | 0.88 |
| 3/4 | 5-1/2 | 3-3/4 | 3/4 | 4 | 0.88 |
| 1 | 6-1/4 | 4-1/4 | 7/8 | 4 | 1 |
| 1-1/4 | 7-1/4 | 5-1/8 | 1 | 4 | 1.12 |
| 1-1/2 | 8 | 5-3/4 | 1-1/8 | 4 | 1.25 |
| 2 | 9-1/4 | 6-3/4 | 1 | 8 | 1.12 |
| 2-1/2 | 10-1/2 | 7-3/4 | 1-1/8 | 8 | 1.25 |
| 3 | 12 | 9 | 1-1/4 | 8 | 1.38 |
| 4 | 14 | 10-3/4 | 1-1/2 | 8 | 1.62 |
| 5 | 16-1/2 | 12-3/4 | 1-3/4 | 8 | 1.88 |
| 6 | 19 | 14-1/2 | 2 | 8 | 2.12 |
| 8 | 21-3/4 | 17-1/4 | 2 | 12 | 2.12 |
| 10 | 26-1/2 | 21-1/4 | 2-1/2 | 12 | 2.62 |
| 12 | 30 | 24-3/8 | 2-3/4 | 12 | 2.88 |
| Grades | Carbon | Manganese | Silicon | Sulfur | Phosphorus | Chromium | Molybdenum |
| ASTM A182 F11 Flange | 0.05 - 0.15 | 0.3 - 0.6 | 0.5 - 1 | 0.03 | 0.03 | 1 - 1.5 | 0.044 - 0.65 |
| Mechanical Properties | Original Value | Comments |
|---|---|---|
| Hardness, Brinell | 143 - 207 | |
| Tensile Strength, Yield | 275 MPa | |
| Tensile Strength, Ultimate | 485 MPa | |
| Elongation at Break | 20 % | in 2 in. (50 mm) |
| Reduction of Area | >= 30 % |
| Material Group | Common Name | Type | UNS | Forging Spec. | Casting Spec. Equivalent | DIN | DIN W. No |
|---|---|---|---|---|---|---|---|
| ASTM A182 F11 Flange | 1.1/4Cr-1/2Mo | K11572 | A182-F11 cl2 | A217-WC6 | 13CRM044 | 1.7335 | Up to 593ºC (1100ºF) |
| Dimension Standards | Size Range | Ratings |
|---|---|---|
| F11 Socket Weld Flanges | 1/2" to 24" | 150# to 2500# |
| A182 F11 Lapped joint Flanges | 1" TO 24" | 300# TO 2500# |
| SA182 Gr F11 flange | 26" TO 48" | 150# TO 600# |
| Chromoly F11 lap joint flange | 12" TO 60" | 150# to 900# |
| Low F11 WNRF Flanges | 26" TO 60" | -- |
| SA182 F11 RTJ Flange | 2 1/6" TO 30" | 2000 PSI TO 20000 PSI |
| A182 Gr F11 Flat Flange | 1/2" TO 24" | 150# TO 2500# |
| F11 Slip On Flanges | DN10 TO DN3600 | PN6 TO PN160 |
| HSN Code | Description |
|---|---|
| 73071190 | Astm A182 F11 Flange |