At Tesco Steel & Engineering, we proudly export ASME B16.5 Class 300 slip on flanges to a wide network of clients across the USA, Germany, France, Italy, Saudi Arabia, UAE, and Kuwait. Our flanges are widely used in oil & gas, shipbuilding, petrochemical, power generation, and water treatment industries, where reliable and high-quality piping components are essential. With a strong global presence and a reputation for consistent quality and customer-focused service, we are a trusted partner for engineered flange solutions that meet international standards.
Our state-of-the-art Mumbai factory is equipped with the latest CNC technology, automated forging lines, and precision testing tools. This modern infrastructure allows us to manufacture SORF Flanges #300 (Slip On Raised Face) and SOFF Flanges #300 (Slip On Flat Face) that offer superior dimensional accuracy and long-term performance. Tesco Steel & Engineering is known for its superior manufacturing quality, ensuring that each slip on flange meets rigorous standards for pressure resistance, corrosion protection, and welding compatibility across a wide range of materials, including stainless steel, carbon steel, and alloy steel.
ASME B16.5 Class 300 Slip On Flanges are highly preferred in moderate-pressure piping systems due to their ease of installation and precise fitment. These flanges are designed to be slipped over the pipe and welded both on the inside and outside, ensuring a strong, leak-free connection. Commonly referred to as SORF #300 or SOFF #300, these slip on flanges are ideal for pipelines that require frequent inspection or replacement. With a focus on durability and reliability, Tesco Steel & Engineering delivers flange solutions that consistently exceed industry expectations.
| Size in Inch | Size in mm | Outer Dia. | Flange Thick. | Hub OD | Flange Length | RF Dia. | RF Height | PCD | Socket Bore | No of Bolts | Bolt Size UNC | Machine Bolt Length | RF Stud Length | Hole Size | ISO Stud Size | Weight in kg |
| A | B | C | D | E | F | G | H | |||||||||
| 1/2 | 15 | 95 | 12.7 | 38 | 21 | 34.9 | 2 | 66.7 | 22.2 | 4 | 1/2 | 55 | 65 | 5/8 | M14 | 1.2 |
| 3/4 | 20 | 115 | 14.3 | 48 | 24 | 42.9 | 2 | 82.6 | 27.7 | 4 | 5/8 | 65 | 75 | 3/4 | M16 | 1.4 |
| 1 | 25 | 125 | 15.9 | 54 | 25 | 50.8 | 2 | 88.9 | 34.5 | 4 | 5/8 | 65 | 75 | 3/4 | M16 | 1.4 |
| 1 1/4 | 32 | 135 | 17.5 | 64 | 25 | 63.5 | 2 | 98.4 | 43.2 | 4 | 5/8 | 70 | 85 | 3/4 | M16 | 1.8 |
| 1 1/2 | 40 | 155 | 19.1 | 70 | 29 | 73 | 2 | 114.3 | 49.5 | 4 | 3/4 | 75 | 90 | 7/8 | M20 | 2.7 |
| 2 | 50 | 165 | 20.7 | 84 | 32 | 92.1 | 2 | 127 | 61.9 | 8 | 5/8 | 75 | 90 | 3/4 | M16 | 3.2 |
| 2 1/2 | 65 | 190 | 23.9 | 100 | 37 | 104.8 | 2 | 149.2 | 74.6 | 8 | 3/4 | 85 | 100 | 7/8 | M20 | 4.6 |
| 3 | 80 | 210 | 27 | 117 | 41 | 127 | 2 | 168.3 | 90.7 | 8 | 3/4 | 90 | 110 | 7/8 | M20 | 5.9 |
| 3 1/2 | 90 | 230 | 28.6 | 133 | 43 | 139.7 | 2 | 184.2 | 103.4 | 8 | 3/4 | 95 | 110 | 7/8 | M20 | 7.7 |
| 4 | 100 | 255 | 30.2 | 146 | 46 | 157.2 | 2 | 200 | 116.8 | 8 | 3/4 | 95 | 115 | 7/8 | M20 | 10 |
| 5 | 125 | 280 | 33.4 | 178 | 49 | 185.7 | 2 | 235 | 144.4 | 8 | 3/4 | 110 | 120 | 7/8 | M20 | 12.7 |
| 6 | 150 | 320 | 35 | 206 | 51 | 215.9 | 2 | 269.9 | 171.4 | 12 | 3/4 | 110 | 120 | 7/8 | M20 | 17.7 |
| 8 | 200 | 380 | 39.7 | 260 | 60 | 269.9 | 2 | 330.2 | 222.2 | 12 | 7/8 | 120 | 140 | 1 | M24 | 26 |
| 10 | 250 | 445 | 46.1 | 321 | 65 | 323.8 | 2 | 387.4 | 277.4 | 16 | 1 | 140 | 160 | 1 1/8 | M27 | 36 |
| 12 | 300 | 520 | 49.3 | 375 | 71 | 381 | 2 | 450.8 | 328.2 | 16 | 1 1/8 | 145 | 170 | 1 1/4 | M30 | 52 |
| 14 | 350 | 585 | 52.4 | 425 | 75 | 412.8 | 2 | 514.4 | 360.2 | 20 | 1 1/8 | 160 | 180 | 1 1/4 | M30 | 75 |
| 16 | 400 | 650 | 55.6 | 483 | 81 | 469.9 | 2 | 571.5 | 411.2 | 20 | 1 1/4 | 165 | 190 | 1 3/8 | M33 | 86 |
| 18 | 450 | 710 | 58.8 | 533 | 87 | 533.4 | 2 | 628.6 | 462.3 | 24 | 1 1/4 | 170 | 195 | 1 3/8 | M33 | 113 |
| 20 | 500 | 775 | 62 | 587 | 94 | 584.2 | 2 | 685.8 | 514.4 | 24 | 1 1/4 | 185 | 205 | 1 3/8 | M33 | 143 |
| 24 | 600 | 915 | 68.3 | 702 | 105 | 692.2 | 2 | 812.8 | 616 | 24 | 1 1/2 | 205 | 230 | 1 5/8 | M39 | 216 |
Countries we export to: ASME B16.5 Class 300 Slip On 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.
Major Exporting Areas: ANSI B16.5 #300 Slip On 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.