A type of low alloy steel, grade F91 is referred to as a chrome moly alloy. Like other low alloy steel grades, the presence of elements as alloying content in these components is less. The content of chromium in the ASTM A182 F91 Flange ranges between 8% to 9.5%, making it one of the primary alloyants, with molybdenum between 0.85% - 1.05%. Though the content of molybdenum is maxed out at 1.05%, it follows closely behind chromium with regards to the amount. And the other elements included in the alloy by F91 Flanges Manufacturers include nickel, nitrogen, aluminum, niobium, silicon, and manganese - all of which are less than 0.6%. With molybdenum and chromium being more prominent in the alloy, it is referred to as chrome moly steel.
Steel alloys that contain higher amounts of chromium like the ASME SA182 F91 Material generally tend to have good resistance to atmospheric corrosion. In fact, this property is better than most carbon steel grades, especially in environments with elevated temperatures. The rate of corrosion is faster in such conditions, which is why the materials experience rapid degeneration. Another side-effect of prolonged exposure to thermal levels is a loss in mechanical properties like hardness and toughness. Molybdenum, silicon, and manganese included in the ASTM A182 F91 Class 3 Orifice Flanges offer the material better mechanical properties. These properties are a considerable improvement over regular carbon steel alloys. This alloy offers good weldability. The good weldability characteristics seen by this alloy have been attributed to the low content of carbon in the Alloy Steel A182 F91 Flange. Though alloying the alloy gives superior properties to the material, the use of heat treatments brings up these properties by a notch. Chrome Moly Grade F91 Blind Flange follows specification ASTM A182 for heat treatment details to optimize its mechanical properties.
Specifications format | ASTM A182 / ASME SA182 F91 Flange |
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Standards | ASME, BS, DIN, EN, GOST, ANSI/ASME B16.5, B16.47 Series A / B, B16.48, BS4504, BS 10, EN-1092, ANSI |
Size range | 1/2 Inch to 48 Inch |
DIN Standard | 6, 10, 16, 25, 40 Bar/ PN6 PN40 PN10 PN25 PN16 PN64 |
ANSI Standard | Class 150 LBS to 2500 LBS |
EN Standard | 6, 10, 16, 25, 40 Bar |
JIS Standard | 5, 10, 16 20, 30, 40, 63 K |
UNI Standard | 6, 10, 16, 25, 40 Bar |
Main Types | Screwed / Forged / Threaded / Plate |
Flange Face Type | Lap-Joint Face, Raised Face, Ring Type Joint, Flat Face, Small Tongue, Large Male-Female, Small Male-Female, Large Tongue & Groove Flange manufacturer and Supplier |
Flange Marking | All Flange are marked as follows: Supplier or Manufacturer’s Name, Size, Class, Bore, Dimension, Material, Heat No. Or according to the customer’s request. |
Supplier and Distributors Located in | Kuwait, Karachi, Rajkot, Caracas, Lagos, Manama, Khobar, Nagpur, Ankara, Perth, Gujarat, Santiago, Howrah, Melbourne, Mexico, Ludhiana, Riyadh, Noida, Baroda, Gimhae si, Abu Dhabi, Montreal, Tehran, Ernakulam, Surat, New Delhi, Bangalore, Coimbatore, Vadodara, Muscat, Gurgaon, Chennai, Jamshedpur, Ahmedabad, Calgary, Mumbai, Istanbul, Ranchi, India, Indore, Port of Spain, Bogota, London, Ahvaz, Kolkata, Janeiro, Kanpur, Hyderabad, Sydney, Courbevoie, Bengaluru, Dammam, Thiruvananthapuram, Pimpri Chinchwad, Ludhiana |
Description | Price Per Piece in INR | Price Per Piece in USA $ | Price Per Piece in UAE Dirham |
---|---|---|---|
Forged ASME B16.5 Alloy Steel ASTM A182 Gr F91 So Blf Wn Flange | INR 746.07 | USA $ 10.00 | AED 36.73 |
Alloy Steel Flange, ASTM A182 F91, Size 1/2"-48", Pressure 150#-2500# | INR 373.03 | USA $ 5.00 | AED 18.37 |
ASTM A182 F91 Forged Steel Flange | INR 149.21 | USA $ 2.00 | AED 7.35 |
A182 F91 Welded Neck Alloy Steel Flange | INR 74.61 | USA $ 1.00 | AED 3.67 |
Alloy Steel Flange, ASTM A182 F91, Size 1/2"-48", Pressure 150#-2500# | INR 1492.14 | USA $ 20.00 | AED 73.46 |
Astm A182 F91 Rf Slip On Plate Flange
Forged 1/2"-24" Astm A182 F91 Wn Plate Flange
Astm A182 F91 Carbon Steel Plate Flange
Flange Long Neck 600lb Astm A182 F91 B16.5
Forged Alloy Pipe Flange A182 F91 Steel Thread Flange
Astm A182 F91 Cl2 Carbon Steel Class 150 Npt Flange
F91 Alloy Steel Spectacle Blind Flange, 300 Lb, 3 Inch, Rf
Astm A182 F91 Alloy Steel Pipe Rf Slip On Plate Flange
F91 Weld Neck Orifice Flange, 900lb, 10 Inch, Rf
Astm A182 F91 Nps Long Welding Neck Flange
3 Inch F91 Wn Orifice Flange, Sch 80
Astm A182 F91 Alloy Steel Slip On Flange
Temperature °F | Cl 150 LB | Cl 300 LB | Cl 400 LB | Cl 600 LB | Cl 900 LB | Cl 1500 LB | Cl 2500 LB |
-20 to 100 | 265 | 695 | 925 | 1390 | 2085 | 3470 | 5785 |
200 | 260 | 680 | 905 | 1360 | 2035 | 3395 | 5660 |
400 | 200 | 640 | 855 | 1280 | 1920 | 3200 | 5330 |
500 | 170 | 620 | 830 | 1245 | 1865 | 3105 | 5180 |
600 | 140 | 605 | 805 | 1210 | 1815 | 3025 | 5040 |
750 | 95 | 530 | 710 | 1065 | 1595 | 2660 | 4430 |
300 | 230 | 655 | 870 | 1305 | 1955 | 3260 | 5435 |
650 | 125 | 590 | 785 | 1175 | 1765 | 2940 | 4905 |
700 | 110 | 570 | 755 | 1135 | 1705 | 2840 | 4730 |
800 | 80 | 510 | 675 | 1015 | 1525 | 2540 | 4230 |
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 |
Dimension Standards | Size Range | Ratings |
---|---|---|
F91 Socket Weld Flange | 1/2 inch to 24 inch | 150# to 2500# |
A182 F91 Lapped joint Flange | 1 inch TO 24 inch | 300# TO 2500# |
SA182 Gr F91 flange | 26 inch TO 48 inch | 150# TO 600# |
Chromoly F91 lap joint flange | 12 inch TO 60 inch | 150# to 900# |
Low F91 WNRF Flange | 26 inch TO 60 inch | -- |
SA182 F91 RTJ Flange | 2 1/6 inch TO 30 inch | 2000 PSI TO 20000 PSI |
A182 Gr F91 Flat Flange | 1/2 inch TO 24 inch | 150# TO 2500# |
F91 Slip On Flange | DN10 TO DN3600 | PN6 TO PN160 |
Nominal pipe diameter in Inch | Outer Diameter Flange | Thickness | Diameter of Hub | Diameter of Raised Face | Length | Thread Length | KG | LB | |
---|---|---|---|---|---|---|---|---|---|
1 | 25 | 108.00 | 14.20 | 49.30 | 50.80 | 17.50 | 17.50 | 0.8 | 1.8 |
1/2 | 15 | 89.00 | 11.20 | 30.20 | 35.10 | 15.70 | 15.70 | 0.4 | 0.9 |
1-1/4 | 32 | 117.50 | 15.70 | 58.70 | 63.50 | 20.60 | 20.60 | 1.2 | 2.6 |
1-1/2 | 40 | 127.00 | 17.50 | 65.00 | 73.20 | 22.40 | 22.40 | 1.5 | 3.3 |
3/4 | 20 | 98.50 | 12.70 | 38.10 | 42.90 | 15.70 | 15.70 | 0.7 | 1.5 |
6 | 150 | 279.50 | 25.40 | 192.00 | 215.90 | 39.60 | 39.60 | 8.4 | 18.5 |
3 | 80 | 190.50 | 23.90 | 108.00 | 127.00 | 30.20 | 30.20 | 4.1 | 9 |
2-1/2 | 65 | 178.00 | 22.40 | 90.40 | 104.60 | 28.40 | 28.40 | 3.7 | 8.1 |
3-1/2 | 90 | 216.00 | 23.90 | 122.20 | 139.70 | 31.80 | 31.80 | 5.1 | 11.2 |
2 | 50 | 152.50 | 19.10 | 77.70 | 91.90 | 25.40 | 25.40 | 2.3 | 5.1 |
4 | 100 | 228.50 | 23.90 | 134.90 | 157.20 | 33.30 | 33.30 | 5.9 | 13 |
5 | 125 | 254.00 | 23.90 | 163.60 | 185.70 | 36.60 | 36.60 | 7 | 15.4 |
8 | 200 | 343.00 | 28.40 | 246.10 | 269.70 | 44.50 | 44.50 | 13 | 28.6 |
14 | 350 | 533.50 | 35.10 | 400.10 | 412.80 | 57.20 | 57.20 | 39 | 86 |
10 | 250 | 406.50 | 30.20 | 304.80 | 323.90 | 49.30 | 49.30 | 18 | 39.5 |
20 | 500 | 698.50 | 42.90 | 558.80 | 584.20 | 73.20 | 73.20 | 76 | 167 |
24 | 600 | 813.00 | 47.80 | 663.40 | 692.20 | 82.60 | 82.60 | 97 | 214 |
16 | 400 | 597.00 | 36.60 | 457.20 | 469.90 | 63.50 | 63.50 | 47 | 103 |
12 | 300 | 482.50 | 31.80 | 365.30 | 381.00 | 55.60 | 55.60 | 29 | 64 |
18 | 450 | 635.00 | 39.60 | 505.00 | 533.40 | 68.30 | 68.30 | 57 | 126 |
Element | Weight % |
C | 0.08-0.12 |
Mn | 0.30-0.60 |
S | 0.010 Max |
Si | 0.20-0.50 |
P | 0.020 Max |
Mo | 0.85-1.05 |
Ni | 0.40 Max |
Cr | 8.0-9.5 |
V | 0.18-0.25 |
Cu | – |
Other | Cb, 0.06-0.10; N, 0.03-0.07; Al, 0.04 max. |
Grade | Tensile Strength (Mpa) | Elongation % | Yield Strength (Mpa) |
ASTM A182 F91 Flange | 415 | 20 | 585 |
Material Group | Common Name | Type | Forging Spec. | UNS | Casting Spec. Equivalent | DIN |
---|---|---|---|---|---|---|
9Cr-1Mo-V | ASTM A182-F91 | X 10 CrMoVNb 9 1 | A217-C12A | 1.4903 | High pressure steam |
Products | We supplied to following Locations |
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Black A182 F91 Weld Neck Plate Flange, 8 Inch | Chile, Italy, Iran, Singapore |
Forged F91 Wn So Plate Flange | Norway, Malaysia, United Arab Emirates (UAE), Turkey |
Astm A182 F91 Alloy Steel Flange | Indonesia, Belgium, Dammam -KSA, Philippines. |
Ansi B 16.5 F91 Forged 300lb Blind Flange | Malaysia, Philippines, Canada, Singapore |
Forged Steel F91 Slip On Flange | UK, Mexico, Egypt, Spain |
Astm A182 F91 Rf Slip On Plate Flange | Bahrain, South Africa, Singapore |
Forged 1/2"-24" Astm A182 F91 Wn Plate Flange | Thailand, France, Europe, Qatar |
Astm A182 F91 Carbon Steel Plate Flange | Czechia, Malaysia, Germany, Thailand |
Flange Long Neck 600lb Astm A182 F91 B16.5 | Sweden, China, Colombia, Malaysia |
Forged Alloy Pipe Flange A182 F91 Steel Thread Flange | Netherlands, Russia, Dubai, Malaysia |
Astm A182 F91 Cl2 Carbon Steel Class 150 Npt Flanges | Saudi Arabia (KSA), Kuwait, South Africa, Brazil |
F91 Alloy Steel Spectacle Blind Flanges, 300 Lb, 3 Inch, Rf | Australia, Philippines, Nigeria, UK |
Astm A182 F91 Alloy Steel Pipe Rf Slip On Plate Flange | Hong Kong, Oman, Malaysia, UAE |
F91 Weld Neck Orifice Flanges, 900lb, 10 Inch, Rf | Malaysia, USA, Finland, Bangladesh |
Astm A182 F91 Nps Long Welding Neck Flanges | Poland, Canada, Ellington -United States, UK |
3 Inch F91 Wn Orifice Flanges, Sch 80 | Europe, UAE, United Kingdom -UK, Malaysia |
Astm A182 F91 Alloy Steel Slip On Flange | Malaysia, Japan, Europe, Romania |