ASME B16.47 Series B Class 400 weld neck flanges are designed for high-pressure, large-diameter piping systems, offering excellent strength, durability, and weldability. These flanges are distinguished by their long tapered hub, which provides reinforcement and reduces stress concentration, making them ideal for high-temperature and high-pressure applications. Tesco Steel & Engineering manufactures and supplies these flanges in compliance with strict dimensional and material standards to ensure superior performance in industrial environments.
At Tesco Steel & Engineering, our Class 400 weld neck flanges are crafted using premium materials such as carbon steel, stainless steel, and alloy steel to meet the needs of diverse industries. Every flange undergoes rigorous quality checks to ensure dimensional accuracy, perfect weldability, and consistent pressure-handling capability. Our state-of-the-art manufacturing facilities and skilled workforce allow us to deliver top-tier flanges that stand out for their reliability and long service life.
Tesco Steel & Engineering exports ASME B16.47 Series B weld neck flanges to various international markets including the United States, Germany, Italy, the United Arab Emirates, Saudi Arabia, and Qatar. These flanges are widely utilized in petrochemical plants, offshore drilling operations, power generation units, and water treatment systems. With a strong commitment to global quality standards and timely delivery, Tesco continues to be a preferred supplier for clients across Western and Middle Eastern regions.
| NPS | OD | D | B | H | A | G | K | L | No of Bolts |
Stud Bolt Dia x L |
|
| 26 | 660.4 | 850 | 95.25 | 155.35 | 698 | 711 | 781 | 38.1 | 28 | 1.3/8 | 279 |
| 28 | 711.2 | 915 | 101.65 | 165.35 | 740 | 762 | 838.2 | 41.3 | 24 | 1.1/2 | 298 |
| 30 | 762 | 970 | 107.95 | 176.35 | 794 | 819 | 895.4 | 41.3 | 28 | 1.1/2 | 311 |
| 32 | 812.8 | 1035 | 114.35 | 185.35 | 845 | 873 | 952.5 | 44.5 | 28 | 1.5/8 | 330 |
| 34 | 863.6 | 1085 | 117.55 | 193.35 | 899 | 927 | 1003.3 | 44.5 | 32 | 1.5/8 | 337 |
| 36 | 914.4 | 1155 | 125.45 | 206.35 | 952 | 981 | 1066.8 | 47.6 | 28 | 1.3/4 | 356 |
| 38 | 965.2 | 1205 | 130.25 | 212.35 | 1003 | 1035 | 1117.6 | 47.6 | 32 | 1.3/4 | 368 |
| 40 | 1016 | 1270 | 136.55 | 222.35 | 1054 | 1092 | 1174.8 | 50.8 | 32 | 1.7/8 | 387 |
| 42 | 1066.8 | 1320 | 139.75 | 230.35 | 1108 | 1143 | 1225.6 | 50.8 | 32 | 1.7/8 | 394 |
| 44 | 1117.6 | 1385 | 146.05 | 239.35 | 1159 | 1200 | 1282.7 | 54 | 32 | 2 | 413 |
| 46 | 1168.4 | 1440 | 152.45 | 250.35 | 1213 | 1257 | 1339.8 | 54 | 36 | 2 | 425 |
| 48 | 1219.2 | 1510 | 158.75 | 263.35 | 1267 | 1308 | 1403.4 | 60.3 | 28 | 2.1/4 | 451 |
| 50 | 1270.2 | 1570 | 163.55 | 274.35 | 1321 | 1362 | 1460.5 | 60.3 | 32 | 2.1/4 | 457 |
| 52 | 1320.8 | 1620 | 168.35 | 282.35 | 1372 | 1413 | 1511.3 | 60.3 | 32 | 2.1/4 | 470 |
| 54 | 1371.6 | 1700 | 176.25 | 295.35 | 1426 | 1470 | 1581.2 | 66.7 | 28 | 2.1/2 | 502 |
| 56 | 1422.4 | 1755 | 181.05 | 304.35 | 1480 | 1527 | 1632 | 66.7 | 32 | 2.1/2 | 508 |
| 58 | 1473.2 | 1805 | 184.15 | 312.35 | 1530 | 1578 | 1682.8 | 66.7 | 32 | 2.1/2 | 514 |
| 60 | 1524 | 1885 | 192.15 | 325.35 | 1584 | 1635 | 1752.6 | 73 | 32 | 2.3/4 | 546 |
Countries we export to: ANSI ASME B16.47 Series B Class 400 Weld Neck Flanges Manufacturers / Suppliers / Stockist in Kuwait, in UAE, in Germany, Saudi Arabia, West Africa, Iraq, Congo, Mexico, Bahra, Canada, Philippes, Thailand, Kenya, Oman, Malaysia, Turkey, Qatar, Sudan, Netherlands, Oman, Nigeria, Lithuania, Gabon, Russia, Vietnam, Angola, Bolivia, Indonesia, UK, Yemen, Italy, United States, Venezuela, Spain, Iran, Estonia, Kazakhstan, Algeria, Jordan, Ecuador, Portugal, Colombia, Libya, Chile, Peru, Iran, South Africa, Bangkok, Namibia, Jeddah, Afghanistan, Israel, Zambia, Macau, Morocco, Denmark, Taiwan, Norway, Belarus, North Macedonia, Lebanon, Sri Lanka, Bhutan, Bulgaria, Albania, Ukrae, Belgium, Fland, Slovokia, Tibet, Romania, France, Brazil, Tridad & Tobago, Fiji, Tunisia, Gambia, Mexico, Hungary, Zimbabwe, Mongolia, Ghana, Egypt, Kazakhstan, Czech Republic, Azerbaijan, Poland, Greece, Costa Rica, Kosovo, New Zealand, Croatia, Puerto Rico, Tanzania, Somalia.
Domestic: ASME B16.47 Series B CLass 400 Weld Neck Flanges Manufacturers / Suppliers / Stockist in Moscow, Port-Of-Spain, Seoul, Montreal, Dubai, Kuala Lumpur, Aberdeen, Tehran, Bogota, Petaling Jaya, Melbourne, Abu Dhabi, Courbevoie, Edmonton, Ho Chi Minh City, Bangkok, Toronto, Muscat, Milan, Busan, Mexico City, Perth, La Victoria, Santiago, Rio de Janeiro, London, Karachi, Los Angeles, Manama, Geoje-si, Atyrau, Sydney, Riyadh, New York, Jeddah, Houston, Granada, Jakarta, Brisbane, Algiers, Kuwait City, Dubai, Hanoi, Doha, Al Jubail, Chiyoda, Cairo, Gimhae-si, Caracas, Lagos, Al Khobar, Madrid, Singapore, Calgary, Colombo, Ulsan, Istanbul, Ahvaz, Dammam, Dallas, Texas, Ankara, Sharjah, Vung Tau, Angola, Benin, Burundi, Botswana, Burkina Faso, Cameroon, Douala, Central African Republic, Republic of Congo, Democratic Republic of Congo, Côte d'Ivoire, Djibouti, Eritrea, Ethiopia, Equatorial Guinea, Gabon, Guinea, Kenya, Liberia,Malawi, Mali, Mauritania, Mauritius, Casablanca-Settat, Tanger-Tetouan-Al Hoceima, Fès-Meknès, Marrakesh-Safi, Oriental, Béni Mellal-Khénifra, Souss-Massa, Laâyoune-Sakia El Hamra, Rabat-Salé-Kénitra region, Mozambique, Temara, Niger, Rwanda, Senegal, Sierra Leone, Sudan, Tanzania, Togo, Uganda, Bangkok, Bangchan, Khlong Sam Wa, Gemopolis, Lard Krabang, Pathumthani, Bangkadi, Navanakorn, Samut Prakarn, Bangplee, Bangpoo, Saraburi, Nongkhae, SIL I/Land, Chachoengsao, 304 I/P, Gateway City, Wellgrow, Rayong, Amata City, Eastern Seaboard, Hemaraj Eastern Seaboard, Rojana, Soam Eastern, Chonburi, Amata Nakorn, Hemaraj Chonburi, Pinthong, Ayutthaya, Bangpa-in, Saha Ratna Nakorn, Nakornratchasima, Kabinburi, Prachinburi, HCMC, Tan Thuan Export Processing Zone, Bien Hoa, Dong Nai Province, Amata City Bien Hoa Industrial Park, Long Binh Techno Park, Binh Duong Province, Vietnam Singapore Industrial Park, My Phuoc Industrial Park, Ho Nai Industrial Zone, Bau Xeo Industrial Park, Long Thanh Industrial Zone, Long Duc Industrial Park, Duc Hao I, Tan Huong, Long Jiang, Tra Noc I/II, Hung Phu I, Hiep Phuoc Industrial Park, Phuoc Dong Industrial Park, Dinh Vu – Cat Hai Economic Zone.