Alpha Overseas is a well-known producer and supplier of carbon steel flanges. Carbon steel pipe flange material can only have minimum chromium, nickel, molybdenum, vanadium, and titanium content. The heat treatment on the flanges makes them more complex and more robust. There are various types based on the type, such as the carbon steel blind flange, which is used to close a connection. The CS flanges come with a collar or flare for bolt holes or welding.
We are one of India's most significant carbon steel flange manufacturers, producing these flanges in various sizes and types. There is various pressure based on the pressure capacities of the flanges. Class 150 carbon steel flange is the lowest class, with higher classes ranging up to 2500.
Low Temperature Carbon Steel Flange, Carbon Steel Flanges Manufacturers, CS Flange, Carbon Steel Flanges Suppliers, Carbon Steel Slip On Flange, LTCS Material Weld Neck Flange, Carbon Steel Pipe Flanges, Carbon Steel Flanges Manufacturers in India.
Carbon steel has a good yield strength in the range of 250 mpa minimum and tensile strength of 485 mpa minimum. Carbon steel spectacle blind flanges are another type of blind flange in which a ring and a plate are joined on the horizontal axis.
Carbon steel flanges have the following characteristics:
- • Available in a variety of diameters,
- • They require very little vertical flange space.
- • It's simple to install and assemble.
- • Low price
Our clients highly regard these due to their long life and resistance to wear and strain. We guarantee the premium quality of the entire range of items to be offered because we are committed to exceeding our valued customer's expectations. These flanges are almost certainly subjected to tests and inspections to determine their quality.
The tests include:
- • A hydrostatic test.
- • A destructive test.
- • A flare test.
- • A flattening test.
- • A third-party inspection.
- • A pitting resistance test.
- • A macro- and micro-test.
These tests are carried out under the watchful eye of professionals and by industry laws and regulations. Finally, the carbon steel flanges are packaged and delivered to the clients.
Carbon Steel Flange Dimensions
NPS (in.) |
Carbon 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 |
Carbon 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 |
Carbon Steel Flanges Types

Carbon Steel Slip On Flange
- Carbon Steel Raised Face Slip On Flange
- Low Temperature Carbon Steel Slip-On Flange
- Carbon Steel Slip On Raised Face Flange
- LTCS Steel SORF Flange
- Low Temperature Carbon Steel SO Flanges
- Carbon Steel Flat Face Slip On Flanges
- CS FFSO Flanges
- CS RFSO Flanges
- PN16 Slip On Flange Carbon Steel
- Carbon Pipe Slip On Flange
- LTCS SORTJ
- Carbon Steel SOFF Flange
- CS Slip On Pipe Flange

Carbon Steel Weld Neck Flange
- Low Temperature Carbon Steel WNRTJ Flange
- LTCS Welding Neck Flanges
- Carbon Steel WNRF Flanges
- CS Weld Neck Flanges
- Carbon Steel Flat Face Weld Neck Flange
- Low Temperature Carbon Steel Raised Face Weld Neck Flange
- CS WNFF Flangs
- LTCS RFWN Flange
- Carbon Steel Weld Neck Flanges ANSI B16.5
- Carbon Steel Weld Neck Flange 300
- Carbon Steel Welding Neck Flanges 150#

Carbon Steel Blind Flange
- Carbon Steel BLRF Flange
- Low Temperature Carbon Steel BLRTJ Flange
- LTCS Blind Pipe Flanges
- CS Blind Flanges
- Carbon Steel BLFF Flanges
- LTCS BLRTJ Flange
- Carbon Steel BL Flange
- Low Temperature Carbon Steel RTJ Blind Flange
- ASME B16.5 Carbon Steel Blind Raised Face Flange
- CS Pipe Blind Flange
- CS Blind Plate Flanges

Carbon Steel Threaded Flange
- CS Threaded Flanges
- LTCS Threaded Pipe Flange
- CS Female Threaded Flange
- Carbon Steel Male Threaded Flange
- Low Temperature Carbon Steel NPT Threaded Flange
- CS Screwed Flanges
- Carbon Steel Reducing Threaded Flange
- LTCS Raised Face Threaded Flange
- Low Temperature Carbon Steel Thread Flange
- Carbon Steel 3 inch Threaded Pipe Flanges

Carbon Steel Socket weld Flange
- Carbon Steel SWRF Flanges
- CS Socket Weld Pipe Flange
- LTCS RFSW Flanges
- CS Raised Face Socket Weld Flanges
- Carbon Steel Socket Welding Flange
- CS Flat Face Socket Weld Flange
- Carbon Steel SWRTJ Flanges
- LTCS Flange sw rf
- Carbon Steel SWFF Flanges
- CS Socket Weld Raised Face Flange
- ASME B16.5 Carbon Steel SW Flange
- Carbon Steel 300# Socket Weld Flange

Carbon Steel Long Weld Neck Flange
- LTCS Long Welding Neck Flange
- Carbon Steel RFLWN Flange
- CS LWN Flanges
- Low Temperature Carbon Steel LWNRF Flanges
- CS LWN Flange
- LTCS Raised Face Long Weld Neck Flange
- CS Long Welding Neck Flanges
- Low Temperature Carbon Steel Long Weld Neck Raised Face Flange
- ASME B16.5 Carbon Steel Long Weld Neck Flanges

Carbon Steel Lap Joint Flange
- Low Temperature Steel Lap Joint Flange
- Carbon Steel Raised Face Lap Joint Flange
- CS Lap Joint Flange with stub end
- Carbon Steel LJFF Flange
- Carbon Steel LJ Flanges
- CS Lap Joint Pipe Flange
- LTCS LJRF Flanges
- CS Flange Lap Joint
- ANSI B16.5 Carbon Steel Lapped Joint Flange
- LTCS Flat Face Lap Joint Flange
- Low Temperature CS Flange Lap Joint Stub End

Carbon Steel Plate Flange
- Low Temperature CS Plate Flanges
- LTCS Plate Flange
- Carbon Steel Plate Flanges Class 150
- Carbon Steel Plate Flange
- LTCS Plate Flange en 1092
- Carbon Steel din 2501 pn10 plate flange
- CS Plate Flanges
- Low Temperature Steel Plate Flanges
- Carbon Steel ANSI B16.5 Plate Flanges

Carbon Steel Orifice Flange
- Carbon Steel ASME B16.36 Orifice Flange
- LTCS Orifice Flanges
- Carbon Steel Raised Face Orifice Flanges
- CS Orifice Pipe Flange
- Low Temperature Carbon Steel RTJ Orifice Flange
- Carbon Steel Orifice Plate Flange
- Carbon Steel Orifice Flanges
- CS Orifice Flanges
- ANSI B16.36 Carbon Steel Orifice Flanges
- CS Orifice Flanges
- LT Carbon Steel Class 150 Orifice Flange
Specialized in Following Carbon Steel Flanges
- CS Flange Manufacturer in Mumbai
- Low Temperature Carbon Steel Flange Manufacturer
- Carbon Steel Flanges Suppliers in India
- Carbon Steel Spacer Ring Flanges
- Low Temperature Carbon Steel Slip On Plate Flange
- LTCS Industrial Pipe Flange
- Carbon Steel Flange Suppliers
- Type CS Loose Plate Flange
- Manufacturer of Carbon Steel Flanges
- CS Large Diameter Flange
- Carbon Steel Groove Flange
- LTCS Flat Face Flanges
- Carbon Steel Paddle Blank and Spacer
- CS Large Tongue Flange Stock
- ANSI/ASME B16.5 Carbon Steel Flange Supplier in Mumbai
- Low Temperature Steel Forged Flanges
- ASME B16.5 LTCS Pipe Flange Spacer Ring
- CS Flange Supplier
- Low Temperature Carbon Steel Custom Flanges
- Carbon Steel Flange Pressure Rating
- Supplier of CS Slip On Flat Face Flange
- Carbon Steel Tongue and Groove Flanges Dealers
- Low Temperature CS Ring Type Joint Flanges
- CS Flat Face Flange
- Carbon Steel RTJ Flange Exporter
- Carbon Steel Raised Face Flange
- CS Flanges Stockist
- LTCS Flanges at Best Price List In India
- CS Exhaust Flanges
- Carbon Steel Reducing Flange
- Low Temperature Carbon Steel NPT Flanges
- Carbon Steel Spectacle Blind Flanges
- LTCS Nipoflange
- Carbon Steel Flangeolet
- Carbon Steel Paddle Blind Flange
- CS Blind Spectacle Flange
Carbon Steel Flanges Ratings
ASME | Pressure Temperature Ratings For Carbon 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 |
Carbon Steel Flange HSN Code
HSN Code | Product Description |
73072100 | HS or HSN Codes for Carbon Steel flange |
Carbon Steel Flange Price List India
Check out the CS Flange Price List.
Carbon Steel Flange in India | Carbon Steel Flange Price in INR |
Carbon Steel Flanges, 150#, 300, 600 LBS, 900 LBS, 1500#, Class 2500 | Rs. 213 |
Carbon Steel Flanges B16.5 | Rs. 3,463 |
Carbon Steel Class 150 Flanges as per ASME B 16.5 | Rs. 4,235 |
Pn16 Dn65 Dn80 CS Flange | Rs. 195 |
Carbon Steel Plate Flange | Rs. 4,190 |
Carbon Steel Flange | Rs. 5,903 |
Carbon Steel Flanges Standard
For more information on flange standards, or to learn more about custom flanges for particular specifications, contact us today.
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Applications of Carbon Steel Flanges
We Export Carbon Steel Flanges Across the Globe
China, Slovakia, columbia, South Korea, Costa Rica, Bulgaria, Vietnam, Czech Republic, Angola, Belarus, Philippines, Israel, Lebanon, Qatar, Hong Kong, Belgium, Peru, Azerbaijan, Turkey, Hungary, Bolivia, Gambia, Tunisia, Croatia, India, Greece, Norway, Afghanistan, Italy, Lithuania, Netherlands, Puerto Rico, Lahore, Nigeria, Estonia, Bhutan, Morocco, New Zealand, Brazil, Thailand, France, Argentina, Finland, Switzerland, Germany, Pakistan, Serbia, Kazakhstan, Denmark, Kuwait, Trinidad & Tobago, Iran, Indonesia, Romania, Gabon, Malaysia, Canada, Mongolia, Russia, Ghana, Algiera, Bangladesh, United States, Iraq, Namibia, Sri Lanka, United Kingdom, Jordan, Zimbabwe, Saudi Arabia, Colombia, Venezuela, Tibet, Spain, Macau, Taiwan, Austria, Mexico, Singapore, Poland, Chile, United Arab Emirates, South Africa, Libya, Kenya, Oman, Sweden, Australia, Ukraine, Egypt, Japan, Bahrain, Ireland, Algeria, Yemen, Ecuador, Nepal, Portugal.
Domestic Supply CS Flanges
Rajkot, Jaipur, Pune, Navi Mumbai, mumbai, Bengaluru, Thiruvananthapuram, Ranchi, Surat, Thane, Haryana, Faridabad, Chennai, Howrah, Nagpur, Jamshedpur, Ludhiana, Hyderabad, Ernakulam , Indore, Kanpur, Pimpri-Chinchwad, Chandigarh, Gurgaon, Noida, Visakhapatnam, Ahmedabad, New Delhi, Nashik, Bhopal, Kolkata, Secunderabad.