ISO Certified Industrial Pipe Flanges Supplier and Manufacturer in all types of flanges Dimensions, Standards, and Pressure Classes.
Bhavani Industries is a leading manufacturer and supplier of high-quality industrial flanges, serving African countries, the USA, and the Middle East. We offer a comprehensive range of flanges, including Weld Neck, Slip-On, Blind, Socket Weld, Threaded, and Lap Joint Flanges, available in sizes ranging from ½” to 48” (DN15 to DN1200) and pressure ratings of 150 to 2500 Class. Manufactured as per international standards like ASTM, ASME, ANSI, DIN, EN, and JIS, our flanges ensure precision, durability, and high resistance to corrosion, making them ideal for critical applications in various industries.
At Bhavani Industries, we use premium materials such as stainless steel (SS 304, 304L, 316, 316L, 321, 347), carbon steel (ASTM A105, A350 LF2), and alloy steel (ASTM A182 F5, F9, F11, F22, F91) to meet diverse industry requirements. Our advanced manufacturing facilities are equipped with CNC machining, forging presses up to 10,000 tons, and heat treatment units, ensuring superior dimensional accuracy and mechanical strength. Our strict quality control process includes 100% PMI (Positive Material Identification), ultrasonic testing (UT), hydro testing, and third-party inspections to guarantee compliance with global quality standards.
As a top exporter, Bhavani Industries caters to major sectors like oil & gas, petrochemicals, power plants, shipbuilding, and construction, delivering bulk orders with efficient logistics support. With a strong presence in Nigeria, South Africa, UAE, Saudi Arabia, Qatar, Oman, and the USA, we ensure timely delivery and customized flange solutions. Our commitment to innovation, technical excellence, and customer satisfaction has made us a trusted name in the global piping industry.
Providing Class 150 Flanges, Series A & B Flanges, Raised Face & Flat Face Flanges, MSS SP-44 Reducing Flanges, and more, we ensure precise dimensions for Class 300#, 600#, 900#, 1500#, EN 1092-1, AWWA, and BS10 standards.
Technical Index
Industrial Pipe Flange Standard Specifications
| Flange Size Availability | ½” (15 NB) to 48” (1200 NB) |
|---|---|
| Flange Pressure Ratings | Class 150, 300, 600, 900, 1500, 2500, PN6, PN10, PN16, PN25, PN40, PN64 |
| Applicable Flange Standards | ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, GOST, MSS SP-44, ISO70051, JISB2220, BS1560-3.1, API7S-15, API7S-43, API605 |
| Flange Facing Types | Raised Face (RF), Flat Face (FF), Ring Type Joint (RTJ), Lap Joint, Male & Female (M&F), Tongue & Groove (T&G) |
| Custom Fabrication | Manufactured as per AS, BS, ANSI, DIN, JIS standards | Custom designs available | Equal and Reducing Configurations |
| Material Test Certifications | EN 10204 3.1 & EN 10204 3.2 | Compliance with NACE MR0175, NACE MR0103 |
| Testing & Inspection Reports | 100% Radiography Test Report, EN 10204/3.1B, Raw Material Certification, Third-Party Inspection Reports |
| Testing Procedures | Hydrostatic Testing, Direct-Reading Spectrograph, Ultrasonic Flaw Detection, X-ray Examination, Magnetic Particle Inspection |
| Manufacturing Equipment | Hydraulic Press Machines, Induction Heating, Bending Machines, Sand-Blasting Units, CNC Machining, Beveling Machines |
| Flange Coating Options | Anti-Rust Paint, Black Oil Paint, Yellow Transparent Coating, Zinc Plating, Hot-Dip & Cold-Dip Galvanization |
| Material Sourcing Regions | India, USA, Japan, West Europe, South Korea |
| Global Export Markets | UAE, Jordan, Bahrain, Kuwait, Oman, Qatar, Saudi Arabia, USA, Singapore, Malaysia, Azerbaijan, Armenia, Georgia, Egypt, Nigeria, South Africa, Kenya, Morocco, Ethiopia, Ghana, Tanzania, Sudan, Uganda, Angola |
Industrial Flange Standards
| ANSI/ASME B16.47 Flanges | ANSI/ASME B16.36 Flanges | ANSI/ASME B16.5 Flanges | Pr. EN1902-1 Flanges |
| DIN Flanges | JIS Flanges | BS 4504 Flanges | BS 10 Flanges |
| MSS SP-44 Flanges | JIS B2220 Flanges | KS B1503 Flanges | UNI Flanges |
| SABS/SANS 1123 Flanges | AS 2129, AS 4087 Flanges | ISO 9624, ISO 7005-1 Flanges | AWWA Flanges Standard |
| GOST Standard Flanges | API Flanges | AS/ANZ 4331.1 Flanges | Series A Flange |
| Series B Flange | SAE J518 Flanges | GB Flange | Norwegian Standard Flanges |
Flange Material Grades and Standards
| Stainless Steel Flanges | ASTM/ASME A/SA182: F304, F304L, F316, F316L | ASTM/ASME A/SA351: CF3, CF3M, CF8, CF8M | DIN: 1.4306, 1.4301, 1.4404, 1.4401, 1.4408, 1.4308, 1.4409 |
|---|---|
| Duplex Steel Flanges | ASTM A182: S31803 / S32205 | Grades: F51, F52, F53, F54, F55, F57, F59, F60, F61 |
| Super Duplex Steel Flanges | ASTM A182: S32750 / S32760 | Grades: F51, F52, F53, F54, F55, F57, F59, F60, F61 |
| Copper Nickel Flanges | ASTM/ASME SB 61 / 62 / 151 / 152 | UNS: C70600 (90/10), C71500 (70/30), C71640 |
| Titanium Flanges | ASTM B381 / ASME SB381: Gr.1, Gr.2, Gr.4, Gr.5, Gr.7 | UNS: R50250 (Gr.1), R50400 (Gr.2), R50550 (Gr.3), R50700 (Gr.4), R52400 (Gr.7), R53400 (Gr.12), R56320 (Gr.9), R56400 (Gr.5) |
| Copper Flanges | Grades: TP1, TP2, C10100 – C12300, TU1, TU2, C12500, C14200, C14500 – C14530, C17200, C19200, C21000, C23000, C26000, C27000, C28000, C33000, C37000, C44300 – C44500, C60800, C63020, C68700, C70400, C70600, C71500, C71640 |
| Incoloy Flanges | ASTM B564 / ASME SB564: Incoloy 800, 800H, 800HT (UNS N08800), 825 (UNS N08825), 925 |
| Inconel Flanges | ASTM B564 / ASME SB564: Inconel 600, 601, 625, 718, 783, 690, X750 |
| Nickel Alloy Flanges | ASTM B564 / ASME SB564: Nickel 200, Nickel 201, Nickel 205, Nickel 205LC |
| Hastelloy Flanges | ASTM B564 / ASME SB564: Hastelloy C276 (UNS N10276), C22 (UNS N06022), C4, C2000, B2, B3, X |
| Monel Flanges | ASTM B564 / ASME SB564: Monel 400 (UNS N04400), Monel 500 (UNS N05500) |
| Carbon Steel Flanges | ASTM/ASME A/SA105, A/SA105N, A/SA216-WCB | DIN: 1.0460, 1.0402, 1.0619 | ASTM A105N, ASTM A350 LF2, ASTM A694 (F52, F56, F60, F65, F70, F80) |
| Alloy Steel Flanges | ASTM A182 / ASME SA182: F5, F9, F11, F12, F22, F91 |
| Alloy 20 Flanges | ASTM B462 / ASME SB462: Carpenter® 20 Alloy, Alloy 20Cb-3 |
| SMO 254 Flanges | ASTM A182 / ASME SA182: SMO 254/6Mo, UNS S31254, DIN 1.4547 |
| Aluminium Flanges | Grades: 5052, 6061, 6063, 2017, 7075 |
| Brass Flanges | Grades: 3602, 2604, H59, H62 |
| Other Specialty Flanges | Materials: Tin Bronze, Aluminum Bronze, Lead Bronze, Nimonic 75, Nimonic 80A, Nimonic 90, AISI 4140, AISI 4130, Mild Steel, Al6XN |
ASME B16.5 Flanges Types
Steel Flange Industries & Applications
ASME B16.5 Flange Weight Chart
| Flange Weights by Pressure Class and Size | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size | 150 # | 300 # | 600 # | 900 # | 1500 # | 2500 # | ||||||||||||
| WN | SO | BLD | WN | SO | BLD | WN | SO | BLD | WN | SO | BLD | WN | SO | BLD | WN | SO | BLD | |
| 1/2″ | 2 | 1 | 1 | 2 | 1 | 1 | 2 | 2 | 2 | SEE 1500 # WEIGHTS | 5 | 4 | 4 | 7 | 7 | 7 | ||
| 3/4″ | 2 | 2 | 2 | 3 | 3 | 3 | 4 | 3 | 3 | SEE 1500 # WEIGHTS | 6 | 5 | 6 | 8 | 8 | 8 | ||
| 1″ | 3 | 2 | 2 | 4 | 3 | 3 | 4 | 4 | 4 | SEE 1500 # WEIGHTS | 9 | 8 | 8 | 12 | 11 | 11 | ||
| 1 1/2″ | 4 | 3 | 3 | 7 | 6 | 6 | 8 | 7 | 8 | SEE 1500 # WEIGHTS | 13 | 12 | 13 | 25 | 22 | 23 | ||
| 2″ | 6 | 5 | 5 | 9 | 7 | 8 | 12 | 9 | 10 | SEE 1500 # WEIGHTS | 25 | 25 | 25 | 42 | 37 | 39 | ||
| 2 1/2″ | 8 | 7 | 7 | 12 | 10 | 12 | 18 | 13 | 15 | SEE 1500 # WEIGHTS | 36 | 36 | 35 | 52 | 55 | 56 | ||
| 3″ | 10 | 8 | 9 | 15 | 13 | 16 | 23 | 16 | 20 | 31 | 26 | 29 | 48 | 48 | 48 | 94 | 83 | 86 |
| 4″ | 15 | 13 | 17 | 25 | 22 | 27 | 42 | 37 | 41 | 53 | 53 | 54 | 73 | 73 | 73 | 145 | 125 | 130 |
| 5″ | 19 | 15 | 20 | 32 | 28 | 35 | 68 | 63 | 68 | 86 | 83 | 87 | 130 | 130 | 140 | 245 | 210 | 225 |
| 6″ | 24 | 19 | 26 | 42 | 39 | 50 | 81 | 80 | 86 | 110 | 110 | 115 | 165 | 165 | 160 | 380 | 325 | 345 |
| 8″ | 39 | 30 | 45 | 67 | 58 | 81 | 120 | 115 | 140 | 175 | 170 | 200 | 275 | 260 | 300 | 580 | 485 | 530 |
| 10″ | 52 | 43 | 70 | 91 | 81 | 124 | 190 | 170 | 230 | 260 | 245 | 290 | 455 | 435 | 510 | 1075 | 930 | 1025 |
| 12″ | 80 | 64 | 110 | 140 | 115 | 185 | 225 | 200 | 295 | 325 | 325 | 415 | 690 | 580 | 690 | 1525 | 1100 | 1300 |
| 14″ | 110 | 90 | 140 | 180 | 165 | 250 | 280 | 230 | 355 | 400 | 400 | 520 | 940 | NA | 975 | NA | NA | NA |
| 16″ | 140 | 98 | 180 | 250 | 190 | 295 | 390 | 330 | 495 | 495 | 425 | 600 | 1250 | NA | 1300 | NA | NA | NA |
| 18″ | 150 | 130 | 220 | 320 | 250 | 395 | 475 | 400 | 630 | 680 | 600 | 850 | 1625 | NA | 1750 | NA | NA | NA |
| 20″ | 180 | 165 | 285 | 400 | 315 | 505 | 590 | 510 | 810 | 830 | 730 | 1075 | 2050 | NA | 2225 | NA | NA | NA |
| 22″ | 225 | 185 | 355 | 465 | 370 | 640 | 720 | 590 | 1000 | NA | NA | NA | NA | NA | NA | NA | NA | NA |
| 24″ | 260 | 220 | 430 | 580 | 475 | 790 | 830 | 730 | 1250 | 1500 | 1400 | 2025 | 3325 | NA | 3625 | NA | NA | NA |
Industrial Flange Wall Thickness
| NOMINAL WALL THICKNESS | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Nom Pipe Size | OD | Sch 10 | Sch 20 | Sch 30 | STD Wall | Sch 40 | Sch 60 | EXT Hvy | Sch 80 | Sch 100 | Sch 120 | Sch 140 | Sch 160 | XX Hvy |
| ½ | 0.84 | 0.083 | …….. | …….. | 0.109 | 0.109 | …….. | 0.147 | 0.147 | …….. | …….. | …….. | 0.188 | 0.294 |
| ¾ | 1.05 | 0.083 | …….. | …….. | 0.113 | 0.113 | …….. | 0.154 | 0.154 | …….. | …….. | …….. | 0.219 | 0.308 |
| 1 | 1.315 | 0.109 | …….. | …….. | 0.133 | 0.133 | …….. | 0.179 | 0.179 | …….. | …….. | …….. | 0.25 | 0.358 |
| 1 ¼ | 1.66 | 0.109 | …….. | …….. | 0.14 | 0.14 | …….. | 0.191 | 0.191 | …….. | …….. | …….. | 0.25 | 0.382 |
| 1 ½ | 1.9 | 0.109 | …….. | …….. | 0.145 | 0.145 | …….. | 0.2 | 0.2 | …….. | …….. | …….. | 0.281 | 0.4 |
| 2 | 2.375 | 0.109 | …….. | …….. | 0.154 | 0.154 | …….. | 0.218 | 0.218 | …….. | …….. | …….. | 0.344 | 0.436 |
| 2 ½ | 2.875 | 0.12 | …….. | …….. | 0.203 | 0.203 | …….. | 0.276 | 0.276 | …….. | …….. | …….. | 0.375 | 0.552 |
| 3 | 3.5 | 0.12 | …….. | …….. | 0.216 | 0.216 | …….. | 0.3 | 0.3 | …….. | …….. | …….. | 0.438 | 0.6 |
| 3 ½ | 4 | 0.12 | …….. | …….. | 0.226 | 0.226 | …….. | 0.318 | 0.318 | …….. | …….. | …….. | …….. | 0.636 |
| 4 | 4.5 | 0.12 | …….. | …….. | 0.237 | 0.237 | …….. | 0.337 | 0.337 | …….. | 0.438 | …….. | 0.531 | 0.674 |
| 5 | 5.563 | 0.134 | …….. | …….. | 0.258 | 0.258 | …….. | 0.375 | 0.375 | …….. | 0.5 | …….. | 0.625 | 0.75 |
| 6 | 6.625 | 0.134 | …….. | …….. | 0.28 | 0.28 | …….. | 0.432 | 0.432 | …….. | 0.562 | …….. | 0.719 | 0.864 |
| 8 | 8.625 | 0.148 | 0.25 | 0.277 | 0.322 | 0.322 | 0.406 | 0.5 | 0.5 | 0.594 | 0.719 | 0.812 | 0.906 | 0.875 |
| 10 | 10.75 | 0.165 | 0.25 | 0.307 | 0.365 | 0.365 | 0.5 | 0.5 | 0.594 | 0.719 | 0.844 | 1 | 1.125 | 1 |
| 12 | 12.75 | 0.18 | 0.25 | 0.33 | 0.375 | 0.406 | 0.562 | 0.5 | 0.688 | 0.844 | 1 | 1.125 | 1.312 | 1 |
| 14 | 14 | 0.25 | 0.312 | 0.375 | 0.375 | 0.438 | 0.594 | 0.5 | 0.75 | 0.938 | 1.094 | 1.25 | 1.406 | …….. |
| 16 | 16 | 0.25 | 0.312 | 0.375 | 0.375 | 0.5 | 0.656 | 0.5 | 0.844 | 1.031 | 1.219 | 1.438 | 1.594 | …….. |
| 18 | 18 | 0.25 | 0.312 | 0.438 | 0.375 | 0.562 | 0.75 | 0.5 | 0.938 | 1.156 | 1.375 | 1.562 | 1.781 | …….. |
| 20 | 20 | 0.25 | 0.375 | 0.5 | 0.375 | 0.594 | 0.812 | 0.5 | 1.031 | 1.281 | 1.5 | 1.75 | 1.969 | …….. |
| 22 | 22 | 0.25 | …….. | …….. | 0.375 | …….. | …….. | 0.5 | …….. | …….. | …….. | …….. | …….. | …….. |
| 24 | 24 | 0.25 | 0.375 | 0.562 | 0.375 | 0.688 | 0.969 | 0.5 | 1.219 | 1.531 | 1.812 | 2.062 | 2.344 | …….. |
| 26 | 26 | …….. | …….. | …….. | 0.375 | …….. | …….. | 0.5 | …….. | …….. | …….. | …….. | …….. | …….. |
| 30 | 30 | 0.312 | 0.5 | 0.625 | 0.375 | …….. | …….. | 0.5 | …….. | …….. | …….. | …….. | …….. | …….. |
| 36 | 36 | 0.312 | 0.5 | 0.625 | 0.375 | 0.75 | …….. | 0.5 | …….. | …….. | …….. | …….. | …….. | …….. |
| 40 | 40 | …….. | …….. | …….. | 0.375 | …….. | …….. | 0.5 | …….. | …….. | …….. | …….. | …….. | …….. |
| 42 | 42 | …….. | …….. | …….. | 0.375 | …….. | …….. | 0.5 | …….. | …….. | …….. | …….. | …….. | …….. |
| 48 | 48 | …….. | …….. | …….. | 0.375 | …….. | …….. | 0.5 | …….. | …….. | …….. | …….. | …….. | …….. |
Major Industrial Flanges Export Countries
United Arab Emirates (UAE), Jordan, Bahrain, Kuwait, Oman, Qatar, Saudi Arabia, United States of America (USA), Singapore, Malaysia, Azerbaijan, Armenia, Georgia, Egypt, Algeria, Nigeria, South Africa, Kenya, Morocco, Ethiopia, Ghana, Tanzania, Sudan, Uganda, Angola.