Class 600 Weld Neck Flanges are generally used in high pressure applications, where hot or cold temperatures exist. These steel ASME B16.5 weld neck flanges are circumferentially welded into the system at its neck which means that the integrity of the butt welded area can be easily examined by radiography. These ANSI B16.5 weld neck flanges reduce the turbulence and erosion inside the pipeline because the bores of both pipe and flange match. This also reduces high stress concentration at the base of the hub of the ANSI weld neck pipe flange. Such weld neck are favoured in critical applications. The inside diameter of a #600 weld neck flange is machined to match the inside diameter of the pipe. Tesco Steel & Engineering manufacture a wide range of high quality ASME 600 Weld Neck Flanges in India. We offer these flanges in ASME/ANSI/DIN standards.
Size in Inch | Size in mm | Outer Diameter | Flange Thickness | Hub OD | Weld Neck OD | Welding Neck Length | Bore | RF Diameter | RF Height | PCD | Weld Face |
A | B | C | D | E | F | G | H | I | J | ||
1/2 | 15 | 95 | 14.3 | 38 | 21.3 | 52 | According to Schedule | 34.9 | 7 | 66.7 | 1.6 |
3/4 | 20 | 115 | 15.9 | 48 | 26.7 | 57 | 42.9 | 7 | 82.6 | 1.6 | |
1 | 25 | 125 | 17.5 | 54 | 33.4 | 62 | 50.8 | 7 | 88.9 | 1.6 | |
1 1/4 | 32 | 135 | 20.7 | 64 | 42.2 | 67 | 63.5 | 7 | 98.4 | 1.6 | |
1 1/2 | 40 | 155 | 22.3 | 70 | 48.3 | 70 | 73 | 7 | 114.3 | 1.6 | |
2 | 50 | 165 | 25.4 | 84 | 60.3 | 73 | 92.1 | 7 | 127 | 1.6 | |
2 1/2 | 65 | 190 | 28.6 | 100 | 73 | 79 | 104.8 | 7 | 149.2 | 1.6 | |
3 | 80 | 210 | 31.8 | 117 | 88.9 | 83 | 127 | 7 | 168.3 | 1.6 | |
3 1/2 | 90 | 230 | 35 | 133 | 101.6 | 86 | 139.7 | 7 | 184.2 | 1.6 | |
4 | 100 | 275 | 38.1 | 152 | 114.3 | 102 | 157.2 | 7 | 215.9 | 1.6 | |
5 | 125 | 330 | 44.5 | 189 | 141.3 | 114 | 185.7 | 7 | 266.7 | 1.6 | |
6 | 150 | 355 | 47.7 | 222 | 168.3 | 117 | 215.9 | 7 | 292.1 | 1.6 | |
8 | 200 | 420 | 55.6 | 273 | 219.1 | 133 | 269.9 | 7 | 349.2 | 1.6 | |
10 | 250 | 510 | 63.5 | 343 | 273 | 152 | 323.8 | 7 | 431.8 | 1.6 | |
12 | 300 | 560 | 66.7 | 400 | 323.8 | 156 | 381 | 7 | 489 | 1.6 | |
14 | 350 | 605 | 69.9 | 432 | 355.6 | 165 | 412.8 | 7 | 527 | 1.6 | |
16 | 400 | 685 | 76.2 | 495 | 406.4 | 178 | 469.9 | 7 | 603.2 | 1.6 | |
18 | 450 | 745 | 82.6 | 546 | 457 | 184 | 533.4 | 7 | 654 | 1.6 | |
20 | 500 | 815 | 88.9 | 610 | 508 | 190 | 584.2 | 7 | 723.9 | 1.6 | |
24 | 600 | 940 | 101.6 | 718 | 610 | 203 | 692.2 | 7 | 838.2 | 1.6 |
Size in Inch | Size in mm | No of Bolts | Bolt Size UNC | RF Stud Length | Hole Size | ISO Stud Size | Weight in kg |
1/2 | 15 | 4 | 1/2 | 75 | 5/8 | M14 | 1.5 |
3/4 | 20 | 4 | 5/8 | 90 | 3/4 | M16 | 1.8 |
1 | 25 | 4 | 5/8 | 90 | 3/4 | M16 | 1.8 |
1 1/4 | 32 | 4 | 5/8 | 95 | 3/4 | M16 | 2.7 |
1 1/2 | 40 | 4 | 3/4 | 110 | 7/8 | M20 | 3.7 |
2 | 50 | 8 | 5/8 | 110 | 3/4 | M16 | 5.5 |
2 1/2 | 65 | 8 | 3/4 | 120 | 7/8 | M20 | 8.2 |
3 | 80 | 8 | 3/4 | 125 | 7/8 | M20 | 10.5 |
3 1/2 | 90 | 8 | 7/8 | 140 | 1 | M24 | 11.8 |
4 | 100 | 8 | 7/8 | 145 | 1 | M24 | 19.1 |
5 | 125 | 8 | 1 | 165 | 1 1/8 | M27 | 31 |
6 | 150 | 12 | 1 | 170 | 1 1/8 | M27 | 36 |
8 | 200 | 12 | 1 1/8 | 190 | 1 1/4 | M30 | 55 |
10 | 250 | 16 | 1 1/4 | 215 | 1 3/8 | M33 | 86 |
12 | 300 | 20 | 1 1/4 | 220 | 1 3/8 | M33 | 102 |
14 | 350 | 20 | 1 3/8 | 235 | 1 1/2 | M36 | 127 |
16 | 400 | 20 | 1 1/2 | 255 | 1 5/8 | M39 | 177 |
18 | 450 | 20 | 1 5/8 | 275 | 1 3/4 | M42 | 216 |
20 | 500 | 24 | 1 5/8 | 285 | 1 3/4 | M42 | 268 |
24 | 600 | 24 | 1 7/8 | 330 | 2 | M48 | 377 |
Class #150 Weld Neck Flange |
Class #300 Weld Neck Flange |
Class #400 Weld Neck Flange |
Class #600 Weld Neck Flange |
Class #900 Weld Neck Flange |
Class #1500 Weld Neck Flange |
Class #2500 Weld Neck Flange |
Countries we export to: Manufacturers / Suppliers / Stockist of ANSI ASME B16.5 Class 600 Weld Neck Flanges in Kuwait, in UAE, Germany, Saudi Arabia, West Africa, Dubai, Iraq, Congo, Mexico, Bahrain, Canada, Philippines, Thailand, Kenya, Oman, Malaysia, Turkey, Qatar, Sudan, Netherlands, Oman, Nigeria, Muscat, Russia, Vietnam, Angola, Indonesia, UK, Nigeria, Yemen, Italy, United States, Venezuela, Kazakhstan, Algeria, Jordan, Colombia, Libya, Chine, Peru, Iran, South Africa, Bangkok, Jiddah, Afghanistan, Israel, Zambia, Tanzania, Somalia, Pakistan
Domestic: Mumbai, Delhi, Bangalore, Hyderabad, Ahmedabad, Chennai, Kolkata, Surat, Pune, Jaipur, Lucknow, Kanpur, Nagpur, Visakhapatnam, Indore, Thane, Bhopal, Pimpri-Chinchwad, Patna, Vadodara, Ghaziabad, Ludhiana, Coimbatore, Agra, Andhra Pradesh, Arunachal Pradesh, Assam, Bihar, Chandigarh, Chattisgarh, Dadra and Nagar Haveli, Daman and Diu, Delhi, Goa, Gujarat, Haryana, Himachal Pradesh, Jammu and Kashmir, Jharkhand, Karnataka, Kerala, Lakshadweep, Madhya Pradesh, Maharashtra, Manipur, Meghalaya, Mizoram, Nagaland, Odisha, Puducherry, Punjab, Rajasthan, Sikkim, Tamil Nadu, Telangana, Tripura, Uttar Pradesh, Uttarakhand, West Bengal.