Alpha Overseas is well known in the industry for its production and distribution of Alloy Steel Flanges. The grades and dimensions of low alloy steel flanges vary. We manufacture a variety of alloy steel flanges, some of the highest quality available. These flanges come in a variety of pressure capacities and classifications. For pressure piping, the specification is frequently ASTM A182, and their nominal diameter ranges from 12 inches to 48 inches. The Alloy Steel Flanges manufacturers are also employed in pipe systems to provide certain mechanical advantages. Pressure numbers from PN6 to PN64 and pressure classes from 150 to 2500 are available.
There are many types, uses, shapes, and faces for alloy steel flanges. There are various face types, including ring-type joint flanges, raised face types, and flat face types. The alloy steel lap joint flange is a unique form of a flange with a lap on it. The flanges are utilized to keep the pipes together in various industrial applications. Several manufacturing processes include threaded, welded, screwed, and alloy steel forged flanges. The raw material used to create the forged flanges is just one piece.
Alloy Steel Flanges, Chromium Molybdenum ASTM A182 Flange, Cr-Mo Material Weld Neck Flange, Chrome Moly Flanges, Alloy Steel Pipe Flanges, Alloy Steel Flanges Suppliers, Alloy Steel Slip On Flange, Alloy Steel Flanges Manufacturers in India.
Where rust indicates corrosive activity, these alloy steel slip-on flanges can be machined, shot-peened, and polished in as-built or stress-relieved states if necessary. Our alloy steel threaded flanges do not require solution annealing because they exhibit the desired mechanical characteristics in their as-built form.
These Alloy Steel Weld Neck Flanges are an exception since they have about 24 percent chromium and can be used to prevent scaling at temperatures as high as 1100 degrees Celsius. Our Alloy Steel Blind Flanges are contributed by environmental elements, including wind exposure, industrial pollution, and high temperatures. They are closer to the sea, a significant cause of salt water pollution. The high chromium content in these alloy steel weld flanges, which is advantageous to their resistance to wet corrosion, is also very beneficial to their high-temperature strength and resistance to scaling at elevated temperatures.
Alloy Steel Flange Dimensions
| NPS (in.) |
Alloy Steel Flange Dimensions | ||||
|---|---|---|---|---|---|
| Dia. of Flange (in.) |
No. of Bolts |
Dia. of Bolts (in.) |
Dia. of Bolt Holes (in.) |
Bolt Circle (in.) |
|
| 1/4 | 3-3/8 | 4 | 1/2 | 0.62 | 2-1/4 |
| 1/2 | 3-1/2 | 4 | 1/2 | 0.62 | 2-3/8 |
| 3/4 | 3-7/8 | 4 | 1/2 | 0.62 | 2-3/4 |
| 1 | 4-1/4 | 4 | 1/2 | 0.62 | 3-1/8 |
| 1-1/4 | 4-5/8 | 4 | 1/2 | 0.62 | 3-1/2 |
| 1-1/2 | 5 | 4 | 1/2 | 0.62 | 3-7/8 |
| 2 | 6 | 4 | 5/8 | 0.75 | 4-3/4 |
| 2-1/2 | 7 | 4 | 5/8 | 0.75 | 5-1/2 |
| 3 | 7-1/2 | 4 | 5/8 | 0.75 | 6 |
| 3-1/2 | 8-1/2 | 8 | 5/8 | 0.75 | 7 |
| 4 | 9 | 8 | 5/8 | 0.75 | 7-1/2 |
| 5 | 10 | 8 | 3/4 | 0.88 | 8-1/2 |
| 6 | 11 | 8 | 3/4 | 0.88 | 9-1/2 |
| 8 | 13-1/2 | 8 | 3/4 | 0.88 | 11-3/4 |
| 10 | 16 | 12 | 7/8 | 1 | 14-1/4 |
| 12 | 19 | 12 | 7/8 | 1 | 17 |
| 14 | 21 | 12 | 1 | 1.12 | 18-3/4 |
| 16 | 23-1/2 | 16 | 1 | 1.12 | 21-1/4 |
| 18 | 25 | 16 | 1-1/8 | 1.25 | 22-3/4 |
| 20 | 27-1/2 | 20 | 1-1/8 | 1.25 | 25 |
| 24 | 32 | 20 | 1-1/4 | 1.38 | 29-1/2 |
Alloy Steel Flanges Weight Chart
| Pipe Normal Diameter (inch) | Outer diameter Flange | Thicjness Of Flange Minimum | Diameter of Hub |
Diameter of Raised Face | Length Hub.Y | Thread Length | Diameter of Bolt Circle |
Diameter of Bolt Holes |
Number of Bolts |
Diameter of Bolts (inch) |
KG | LB | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1/2" | 15 | 89.00 | 11.20 | 30.20 | 35.10 | 15.70 | 15.70 | 60.50 | 15.80 | 4 | 1/2" | 0.4 | 0.9 |
| 3/4" | 20 | 98.50 | 12.70 | 38.10 | 42.90 | 15.70 | 15.70 | 69.90 | 15.80 | 4 | 1/2" | 0.7 | 1.5 |
| 1" | 25 | 108.00 | 14.20 | 49.30 | 50.80 | 17.50 | 17.50 | 79.30 | 15.80 | 4 | 1/2" | 0.8 | 1.8 |
| 1-1/4" | 32 | 117.50 | 15.70 | 58.70 | 63.50 | 20.60 | 20.60 | 88.90 | 15.80 | 4 | 1/2" | 1.2 | 2.6 |
| 1-1/2" | 40 | 127.00 | 17.50 | 65.00 | 73.20 | 22.40 | 22.40 | 98.60 | 15.80 | 4 | 1/2" | 1.5 | 3.3 |
| 2" | 50 | 152.50 | 19.10 | 77.70 | 91.90 | 25.40 | 25.40 | 120.70 | 19.10 | 4 | 5/8" | 2.3 | 5.1 |
| 2-1/2" | 65 | 178.00 | 22.40 | 90.40 | 104.60 | 28.40 | 28.40 | 139.70 | 19.10 | 4 | 5/8" | 3.7 | 8.1 |
| 3" | 80 | 190.50 | 23.90 | 108.00 | 127.00 | 30.20 | 30.20 | 152.40 | 19.10 | 4 | 5/8" | 4.1 | 9 |
| 3-1/2" | 90 | 216.00 | 23.90 | 122.20 | 139.70 | 31.80 | 31.80 | 177.80 | 19.10 | 8 | 5/8" | 5.1 | 11.2 |
| 4" | 100 | 228.50 | 23.90 | 134.90 | 157.20 | 33.30 | 33.30 | 190.50 | 19.10 | 8 | 5/8" | 5.9 | 13 |
| 5" | 125 | 254.00 | 23.90 | 163.60 | 185.70 | 36.60 | 36.60 | 215.90 | 22.40 | 8 | 3/4" | 7 | 15.4 |
| 6" | 150 | 279.50 | 25.40 | 192.00 | 215.90 | 39.60 | 39.60 | 241.30 | 22.40 | 8 | 3/4" | 8.4 | 18.5 |
| 8" | 200 | 343.00 | 28.40 | 246.10 | 269.70 | 44.50 | 44.50 | 298.50 | 22.40 | 8 | 3/4" | 13 | 28.6 |
| 10" | 250 | 406.50 | 30.20 | 304.80 | 323.90 | 49.30 | 49.30 | 362.00 | 25.40 | 12 | 7/8" | 18 | 39.5 |
| 12" | 300 | 482.50 | 31.80 | 365.30 | 381.00 | 55.60 | 55.60 | 431.80 | 25.40 | 12 | 7/8" | 29 | 64 |
| 14" | 350 | 533.50 | 35.10 | 400.10 | 412.80 | 57.20 | 57.20 | 476.30 | 28.50 | 12 | 1" | 39 | 86 |
| 16" | 400 | 597.00 | 36.60 | 457.20 | 469.90 | 63.50 | 63.50 | 539.80 | 28.50 | 16 | 1" | 47 | 103 |
| 18" | 450 | 635.00 | 39.60 | 505.00 | 533.40 | 68.30 | 68.30 | 577.90 | 31.80 | 16 | 1 1/8" | 57 | 126 |
| 20" | 500 | 698.50 | 42.90 | 558.80 | 584.20 | 73.20 | 73.20 | 635.00 | 31.80 | 20 | 1 1/8" | 76 | 167 |
| 24" | 600 | 813.00 | 47.80 | 663.40 | 692.20 | 82.60 | 82.60 | 749.30 | 35.10 | 20 | 1 1/4" | 97 | 214 |
Alloy Steel Flanges Types
Alloy Steel Slip On Flange
- ASTM A182 Alloy Steel SOFF Flange
- Alloy Steel Pipe Slip On Flange
- Chrome Moly SteelSORF Flange
- Alloy Steel Flat Face Slip On Flanges
- Alloy Steel A182 Slip On Pipe Flange
- Cr-Mo RFSO Flanges
- CrMo SO Flanges
- Alloy Steel Raised Face Slip On Flange
- Chrome Moly FFSO Flanges
- Alloy Steel Slip On Raised Face Flange
- ASTM A182 SORTJ
- Alloy Steel PN16 Slip On Flange
Alloy Steel Weld Neck Flange
- Alloy Steel Weld Neck Flanges ANSI B16.5
- Cr-Mo RFWN Flange
- ASME SA182 Welding Neck Flanges 150#
- Chrome Molybdenum Raised Face Weld Neck Flange
- Alloy Steel Weld Neck Flanges
- Alloy Steel WNRF Flanges
- ASTM A182 Alloy Steel Weld Neck Flange 300
- CrMo Weld Neck Flanges
- ASTM A182 Welding Neck Flanges
- Chromium Molybdenum Steel WNFF Flangs
- Alloy Steel Flat Face Weld Neck Flange
- Alloy Steel WNRTJ Flange
Alloy Steel Blind Flange
- ASME B16.5 Alloy Steel Blind Raised Face Flange
- ASME SA 182 CrMo Blind Flanges
- Alloy Steel BLRF Flange
- Cr-Mo Pipe Blind Flange
- Alloy Steel BLFF Flanges
- Alloy Steel BL Flange
- ASTM A182 BLRTJ Flange
- AS ASTM A182 Blind Plate Flanges
- Alloy Steel BLRTJ Flange
- Alloy Steel RTJ Blind Flange
- ASTM A182 Cr-Mo Blind Pipe Flanges
Alloy Steel Threaded Flange
- CrMo Female Threaded Flange
- Chrome Moly Threaded Pipe Flange
- Alloy Steel Grade Threaded Flange
- ASTM A182 Threaded Flanges
- ASTM A182 Alloy Steel Thread Flange
- Alloy Steel Male Threaded Flange
- Alloy Steel Reducing Threaded Flange
- ASME SA182 Cr-Mo Screwed Flanges
- ASTM A182 Alloy Steel NPT Threaded Flange
- Alloy Steel Raised Face Threaded Flange
- Alloy Steel 3 inch Threaded Pipe Flanges
Alloy Steel Socket weld Flange
- Alloy Steel SWRTJ Flanges
- Cr-Mo RFSW Flanges
- ASME B16.5 Alloy Steel SW Flange
- ASME SA182 Flat Face Socket Weld Flange
- Alloy Steel A182 Socket Weld Pipe Flange
- Alloy Steel Socket Weld Raised Face Flange
- Alloy Steel Raised Face Socket Weld Flanges
- Alloy Steel SWFF Flanges
- Alloy Steel 300# Socket Weld Flange
- ASME SA182 CrMo Flange sw rf
- Alloy Steel SWRF Flanges
- Alloy Steel Socket Welding Flange
Alloy Steel Long Weld Neck Flange
- CrMo Raised Face Long Weld Neck Flange
- ASME SA182 Long Welding Neck Flanges
- Alloy Steel LWNRF Flanges
- ASME B16.5 Alloy Steel Long Weld Neck Flanges
- Alloy Steel Long Weld Neck Raised Face Flange
- ASTM A182 Cr-Mo Long Welding Neck Flange
- Alloy Steel LWN Flange
- Alloy Steel RFLWN Flange
Alloy Steel Lap Joint Flange
- ASTM A182 CrMo Flat Face Lap Joint Flange
- Alloy Steel Lap Joint Pipe Flange
- Alloy Steel LJ Flanges
- Chromium Molybdenum Lap Joint Flange with stub end
- ASTM A182 Alloy Steel Raised Face Lap Joint Flange
- ASTM A182 Alloy Steel Lap Joint Flange
- Cr-Mo Flange Lap Joint Stub End
- ASTM A182 Flange Lap Joint
- Alloy Steel LJFF Flange
- ANSI B16.5 Alloy Steel Lapped Joint Flange
- Chrome Moly Steel LJRF Flanges
Alloy Steel Plate Flange
- Chrome-Moly Plate Flange
- ASME SA182 Cr-Mo Plate Flange en 1092
- Alloy Steel ANSI B16.5 Plate Flanges
- Alloy Steel din 2501 pn10 plate flange
- Alloy Steel Plate Flanges Class 150
- ASTM A182 Alloy Steel Plate Flange
- ASTM A182 CrMo Plate Flanges
- Chromium Molybdenum Alloy Plate Flanges
Alloy Steel Orifice Flange
- ASME SA182 RTJ Orifice Flange
- ASTM A182 Orifice Pipe Flange
- Cr-Mo Orifice Flanges
- Alloy Steel Class 150 Orifice Flange
- ASTM A182 Alloy Steel Raised Face Orifice Flanges
- ANSI B16.36 Alloy Steel Orifice Flanges
- Chrome Moly Steel Orifice Flanges
- SA 182 CrMo Orifice Flanges
- Alloy Steel ASME B16.36 Orifice Flange
- Alloy Steel Orifice Plate Flange
Specialized in Following ASTM A182 Alloy Steel Flanges
- Chrome Moly Steel Loose Plate Flange
- Alloy Steel Industrial Pipe Flange
- Alloy Steel Flanges Suppliers in India
- ASTM A182 Alloy Steel Flange
- Manufacturer of Alloy Steel Flanges
- Alloy Steel Flange Manufacturer
- Alloy Steel Slip On Plate Flange
- ASME B16.5 CrMo Pipe Flange Spacer Ring
- ASTM A182 Alloy Steel Flange Suppliers
- ANSI/ASME B16.5 Alloy Steel Flange Supplier in Mumbai
- ASME SA182 Alloy Steel Flat Face Flanges
- ASTM A182 CrMo Flanges
- Alloy Steel Forged Flanges
- ASTM A182 Alloy Steel Paddle Blank and Spacer
- Alloy Steel Flange Manufacturer in Mumbai
- Alloy Steel Large Diameter Flange
- Alloy Steel Spacer Ring Flanges
- Chrome Moly Steel Groove Flange
- Alloy Steel Flangeolet
- ASME SA182 Alloy Steel Exhaust Flanges
- ASTM A182 Alloy Steel Paddle Blind Flange
- Alloy Steel Custom Flanges
- Alloy Steel Flange Pressure Rating
- Alloy Steel Tongue and Groove Flanges Dealers
- Alloy Steel Spectacle Blind Flanges
- ASME SA182 Alloy Steel RTJ Flange Exporter
- Alloy Steel Raised Face Flange
- Alloy Steel Ring Type Joint Flanges
- Alloy Steel Reducing Flange
- ASTM A182 Alloy Steel Large Tongue Flange Stock
- Chrome Moly Steel Flanges Stockist
- Supplier of Alloy Steel Slip On Flat Face Flange
- ASTM A182 CrMo Flanges at Best Price List In India
- Alloy Steel Flat Face Flange
- CrMo Nipoflange
- Alloy Steel High Hub Blind Flanges
- Alloy Steel NPT Flanges
- Alloy Steel Grade Blind Spectacle Flange
Alloy Steel Flange Pressure Rating Chart
| ASME | Pressure Temperature Ratings For Alloy Steel Flanges | ||||||
| Temperature °F | Class 150 | Class 300 | Class 400 | Class 600 | Class 900 | Class 1500 | Class 2500 |
| -20 to 100 | 275 | 720 | 960 | 1440 | 2160 | 3600 | 6000 |
| 200 | 230 | 600 | 800 | 1200 | 1800 | 3000 | 5000 |
| 300 | 205 | 540 | 720 | 1080 | 1620 | 2700 | 4500 |
| 400 | 190 | 495 | 660 | 995 | 1490 | 2485 | 4140 |
| 500 | 170 | 465 | 620 | 930 | 1395 | 2330 | 3880 |
| 600 | 140 | 435 | 580 | 875 | 1310 | 2185 | 3640 |
| 650 | 125 | 430 | 575 | 860 | 1290 | 2150 | 3580 |
| 700 | 110 | 425 | 565 | 850 | 1275 | 2125 | 3540 |
| 750 | 95 | 415 | 555 | 830 | 1245 | 2075 | 3460 |
| 800 | 80 | 405 | 540 | 805 | 1210 | 2015 | 3360 |
| 850 | 65 | 395 | 530 | 790 | 1190 | 1980 | 3300 |
| 900 | 50 | 390 | 520 | 780 | 1165 | 1945 | 3240 |
| 950 | 35 | 380 | 510 | 765 | 1145 | 1910 | 3180 |
| 1000 | 20 | 320 | 430 | 640 | 965 | 1605 | 2675 |
| 1050 | 20 | 310 | 410 | 615 | 925 | 1545 | 2570 |
| 1100 | 20 | 255 | 345 | 515 | 770 | 1285 | 2145 |
| 1150 | 20 | 200 | 265 | 400 | 595 | 995 | 1655 |
| 1200 | 20 | 155 | 205 | 310 | 465 | 770 | 1285 |
| 1250 | 20 | 115 | 150 | 225 | 340 | 565 | 945 |
| 1300 | 20 | 85 | 115 | 170 | 255 | 430 | 715 |
| 1350 | 20 | 60 | 80 | 125 | 185 | 310 | 515 |
| 1400 | 20 | 50 | 65 | 95 | 145 | 240 | 400 |
| 1450 | 15 | 35 | 45 | 70 | 105 | 170 | 285 |
| 1500 | 10 | 25 | 35 | 55 | 80 | 135 | 230 |
Alloy Steel Flange HSN Code
| HSN Code | Product Description |
| 73079190 | HS or HSN Codes for Alloy Steel flange |
Alloy Steel Flange Price List India
Check out the Alloy Steel Flange Price List.
| Alloy Steel Flange in India | Alloy Steel Flange Price in INR |
| Alloy Steel Flanges A182 F22, 150, 300, 600 LBS, 900 LBS, 1500#, Class 2500 | Rs. 324 |
| AS Flanges A182 B16.5 | Rs. 4,893 |
| Alloy Steel Class 150 Flanges as per ASME B 16.5 | Rs. 4,124 |
| Pn16 Dn65 Dn80 CrMo Flange | Rs. 295 |
| Alloy Steel Plate Flange | Rs. 3,450 |
| Alloy Steel Flange F22 | Rs. 4,473 |
Alloy Steel Flanges Standard
For more information on flange standards, or to learn more about custom flanges for particular specifications, contact us today.
ASME Flanges
ANSI Flanges
ASTM Flanges
AWWA Flanges
MSS flanges
DIN flanges
EN Flanges
ISO Flanges
JIS Flanges
GOST Flanges
UNI Flanges
API Flanges
Applications of Alloy Steel Flanges
Oil & Gas Industry
Power Generation Industry
Petrochemical Industry
Chemical Industry
Cement Industry
We Export Alloy Steel Flanges Across the Globe
United Arab Emirates, Azerbaijan, Macau, Qatar, Ukraine, Argentina, Gabon, Philippines, Yemen, United States, Hungary, Algeria, Romania, Czech Republic, Hong Kong, Afghanistan, Tunisia, Denmark, Malaysia, Singapore, Libya, China, Chile, Namibia, Lahore, Brazil, Lithuania, Colombia, Canada, Lebanon, Egypt, India, France, Ireland, Netherlands, New Zealand, Kazakhstan, Austria, Kuwait, Costa Rica, Jordan, Estonia, Peru, Puerto Rico, Thailand, Finland, Bangladesh, South Africa, Pakistan, Saudi Arabia, Venezuela, Bhutan, Indonesia, Morocco, Iraq, Bahrain, Croatia, Oman, Tibet, Norway, Spain, Serbia, Israel, Kenya, columbia, Germany, Greece, Ecuador, Sri Lanka, Zimbabwe, Vietnam, Russia, Bolivia, Belgium, Portugal, Poland, Switzerland, Italy, Sweden, United Kingdom, Nigeria, Nepal, Trinidad & Tobago, Slovakia, Iran, Gambia, Mexico, Turkey, Algiera, Belarus, Taiwan, Angola, South Korea, Bulgaria, Mongolia, Japan, Ghana, Australia.
Domestic Supply Alloy Steel Flanges
Nashik, Thiruvananthapuram, Rajkot, Thane, Navi Mumbai, Visakhapatnam, Noida, Bhopal, Haryana, Kanpur, Indore, Jamshedpur, Howrah, Pune, mumbai, Hyderabad, Surat, Secunderabad, Chennai, Ranchi, Kolkata, Ludhiana, Jaipur, Bengaluru, Gurgaon, Faridabad, Ahmedabad, Nagpur, Ernakulam , Chandigarh, Pimpri-Chinchwad, New Delhi.