Nextgen Steel & Alloys is the highest recommended manufacturing company of B16.47 Series B Flanges. Our company is also a leading supplier of these flanges. Our company provide these flanges with the highest quality and within the time limit to our clients. There are many industries who have been our clients for many years due to our good service and customer can buy these flanges at affordable price. According to national and international standards, we produces these flanges.
These flanges are mainly used to block off a section of pipe or nozzle that is not used, and around the perimeter, holes are present. Flanges are commonly used to connect pumps and valves. Our flanges are found in different sizes, shapes, and different material grades like a duplex, super duplex steel, etc. These B16.47 series B Flanges are cost-effective. As compared to series A, series B flanges are thinner, lighter, and weaker. Our flanges are less capable of handling stress and load. These flanges are required fasteners like bolts and nuts. In our company, production processes for these flanges are forged, heat-treated, and machined.
Our B16.47 series B flanges provide many chemical and mechanical properties. These flanges show durability and tensile strength. Our flanges are resistant to corrosion and oxidation in acidic media. B16.47 Flanges come under the large-diameter steel flange group and have different classes. Our flanges perform excellently under huge pressure, so these are popularly used in heavy-duty applications and load bearing equipment. There are many advantages of B16.47 Series B Flanges, such as being used to connect pipe systems, easy repair pipe system, and assembly without welding.
B 16.47 Series B flanges are perfect for refurbishment or replacement work and also for non-critical piping applications. Our B16.47 series B Flanges are found in various industries such as the chemical industry, water pipeline industry, natural gas industry, fabrication industry, and oil and gas industry.
Dimensions
ANSI/ ASME B16.47 Series B
Standard
MSS SP-44: Steel Pipeline Flanges Or API 605: Large DiameterFlanges
Size Range
Normal Pipe Size (NPS) 26 To NPS 60
Pressure Class / Rating
Class 150 LBS, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc.
Connect Type/ Flange Face Type
Flat Face, Lap-Joint Face, Small Male-Female, Raised Face, Large Male-Female, RTJ, Small Tongue, Large Tongue & Groove
Types
Weld Neck Ring Flanges (WNRF), Slip-On Ring Flanges (SORF), Blind Ring Flanges (BLRF), Socket Weld Ring Flanges (SWRF), Lap Joint Ring Flanges (LJRF), Ring Type Joint Flanges (RTJF), Large Diameter Flanges, Orifice Flanges
Flange NPS | Outside Diam. | Minimum Thickness | O.D. of Raised Face | Hub Diam. | Length Thru Hub | Approx. Weight (lbs) | Drilling | ||||
Weld Neck Flange | Blind | Weld Neck Flange | Weld Neck Flange | Blind Flange | No. Holes | Diam. Holes | Bolt Circle Diam. | ||||
26 | 30 | 1.25 | 1.25 | 27.75 | 26.63 | 2.25 | 80 | 255 | 36 | 0.75 | 28.50 |
28 | 32 | 1.25 | 1.25 | 29.75 | 28.63 | 2.38 | 85 | 290 | 40 | 0.75 | 30.50 |
30 | 34 | 1.25 | 1.25 | 31.75 | 30.63 | 2.50 | 90 | 330 | 44 | 0.75 | 32.50 |
32 | 36 | 1.32 | 1.38 | 33.75 | 32.63 | 2.69 | 105 | 390 | 48 | 0.75 | 34.50 |
34 | 38 | 1.32 | 1.44 | 35.75 | 34.63 | 2.82 | 110 | 430 | 52 | 0.75 | 36.50 |
36 | 40.69 | 1.38 | 1.61 | 38 | 36.81 | 3.32 | 145 | 58 | 40 | 0.75 | 39.06 |
38 | 42.69 | 1.44 | 1.69 | 40 | 38.81 | 3.44 | 160 | 595 | 40 | 0.88 | 41.06 |
40 | 44.69 | 1.44 | 1.69 | 42 | 40.81 | 3.57 | 170 | 760 | 44 | 0.88 | 43.06 |
42 | 16.69 | 1.50 | 1.82 | 44 | 42.81 | 3.69 | 185 | 895 | 48 | 0.88 | 45.06 |
44 | 49.25 | 1.63 | 1.88 | 46.25 | 44.88 | 4.07 | 230 | 1065 | 36 | 1 | 47.38 |
46 | 51.25 | 1.69 | 1.94 | 48.25 | 46.88 | 4.19 | 245 | 1185 | 40 | 1 | 49.38 |
48 | 53.25 | 1.75 | 2.07 | 50.25 | 48.88 | 4.32 | 270 | 1315 | 44 | 1 | 51.38 |
50 | 55.25 | 1.82 | 2.13 | 52.25 | 50.94 | 4.50 | 290 | 1505 | 44 | 1 | 53.38 |
52 | 57.38 | 1.82 | 2.19 | 54.25 | 52.94 | 4.69 | 310 | 1665 | 48 | 1 | 55.50 |
54 | 59.38 | 1.88 | 2.31 | 56.25 | 55 | 4.88 | 340 | 1840 | 48 | 1 | 57.50 |
56 | 62 | 1.94 | 2.38 | 58.50 | 57.13 | 5.25 | 400 | 2110 | 40 | 1.12 | 59.88 |
58 | 64 | 2 | 2.44 | 60.50 | 59.13 | 5.38 | 430 | 2300 | 44 | 1.12 | 61.88 |
60 | 66 | 2.13 | 2.56 | 62.50 | 61.13 | 5.63 | 475 | 2500 | 44 | 1.12 | 63.88 |
Flange NPS | Outside Diam. | Minimum Thickness | O.D. of Raised Face | Hub Diam. | Length Thru Hub | Approx. Weight (lbs) | Drilling | ||||
Weld Neck Flange | Blind | Weld Neck Flange | Weld Neck Flange | Blind Flange | No. Holes | Diam. Holes | Bolt Circle Diam. | ||||
26 | 30.94 | 1.57 | 1.69 | 28 | 26.94 | 3.44 | 120 | 375 | 36 | 0.88 | 29.31 |
28 | 32.94 | 1.69 | 1.82 | 30 | 28.94 | 3.69 | 140 | 455 | 40 | 0.88 | 31.31 |
30 | 34.94 | 1.69 | 1.94 | 32 | 31 | 3.88 | 150 | 545 | 44 | 0.88 | 33.31 |
32 | 37.06 | 1.75 | 2.07 | 34 | 33.06 | 4.19 | 170 | 648 | 48 | 0.88 | 35.44 |
34 | 39.56 | 1.88 | 2.13 | 36.25 | 35.12 | 4.28 | 210 | 782 | 40 | 1 | 37.69 |
36 | 41.62 | 2 | 2.25 | 38.25 | 37.19 | 4.57 | 240 | 890 | 44 | 1 | 39.75 |
38 | 44.25 | 2.07 | 2.44 | 40.25 | 39.25 | 4.82 | 290 | 1090 | 40 | 1.12 | 42.12 |
40 | 46.25 | 2.13 | 2.57 | 42.50 | 41.31 | 5 | 310 | 1247 | 44 | 1.12 | 44.12 |
42 | 48.25 | 2.25 | 2.63 | 44.50 | 43.38 | 5.19 | 345 | 1393 | 48 | 1.12 | 46.12 |
44 | 50.25 | 2.32 | 2.75 | 46.50 | 45.38 | 5.32 | 310 | 1579 | 52 | 1.12 | 48.12 |
46 | 52.81 | 2.38 | 2.88 | 48.62 | 47.44 | 5.63 | 435 | 1825 | 40 | 1.25 | 50.56 |
48 | 54.81 | 2.50 | 3 | 50.75 | 48.50 | 5.82 | 480 | 2045 | 44 | 1.25 | 52.56 |
50 | 56.81 | 2.63 | 3.13 | 52.75 | 51.50 | 6 | 520 | 2284 | 48 | 1.25 | 54.56 |
52 | 58.81 | 2.69 | 3.25 | 54.75 | 53.56 | 6.13 | 520 | 2547 | 52 | 1.25 | 56.56 |
54 | 61 | 2.75 | 3.38 | 56.75 | 55.62 | 6.32 | 620 | 2848 | 56 | 1.25 | 58.75 |
56 | 63 | 2.82 | 3.50 | 58.75 | 57.69 | 6.50 | 650 | 3145 | 60 | 1.25 | 60.75 |
58 | 65.94 | 2.88 | 3.62 | 60.75 | 59.69 | 6.82 | 780 | 3560 | 48 | 1.38 | 63.44 |
60 | 67.94 | 2.94 | 3.75 | 63 | 61.81 | 7 | 850 | 3913 | 52 | 1.38 | 65.44 |
Flange NPS | Outside Diam. |
Minimum Thickness | O.D. of Raised Face |
Hub Diam. | Length Thru Hub |
Approx. Weight (lbs) | Drilling | ||||
Weld Neck Flange | Blind | Weld Neck Flange | Weld Neck Flange | Blind Flange | No. Holes | Diam. Holes |
Bolt Circle Diam. |
||||
26 | 34.12 | 3.44 | 3.44 | 29 | 26.19 | 5.63 | 400 | 905 | 32 | 1.38 | 31.62 |
28 | 36.25 | 3.44 | 3.44 | 31 | 28.19 | 5.81 | 450 | 1023 | 36 | 1.38 | 33.75 |
30 | 39 | 3.63 | 3.63 | 33.25 | 30.25 | 6.16 | 550 | 1250 | 36 | 1.50 | 36.25 |
32 | 41.50 | 4 | 4 | 35.50 | 32.25 | 6.56 | 685 | 1556 | 32 | 1.62 | 38.50 |
34 | 43.62 | 4 | 4 | 37.50 | 34.25 | 6.75 | 750 | 1719 | 36 | 1.62 | 40.62 |
36 | 46.12 | 4 | 4 | 39.75 | 36.25 | 7.06 | 840 | 1920 | 32 | 1.75 | 42.88 |
38 | 48.12 | 4.31 | 4.31 | 41.75 | 38.25 | 7.50 | 915 | 2257 | 36 | 1.75 | 44.88 |
40 | 50.12 | 4.50 | 4.50 | 43.88 | 40.25 | 7.75 | 990 | 2550 | 40 | 1.75 | 46.88 |
42 | 52.50 | 4.63 | 4.63 | 46 | 42.31 | 8 | 1135 | 2875 | 36 | 1.88 | 49 |
44 | 54.50 | 4.94 | 4.94 | 48 | 44.31 | 8.38 | 1235 | 3305 | 40 | 1.88 | 51 |
46 | 57.50 | 5 | 5.06 | 50 | 46.31 | 8.69 | 1470 | 3766 | 36 | 2 | 53.75 |
48 | 59.50 | 5 | 5.25 | 52.25 | 48.31 | 8.75 | 1575 | 4183 | 40 | 2 | 55.75 |
50 | 61.50 | 5.38 | 5.44 | 54.25 | 50.31 | 9.19 | 1710 | 4629 | 44 | 2 | 57.75 |
52 | 63.50 | 5.56 | 5.61 | 56.25 | 52.31 | 9.50 | 1840 | 5096 | 48 | 2 | 59.75 |
54 | 65.88 | 5.32 | 5.81 | 58.25 | 54.31 | 9.38 | 1980 | 5679 | 48 | 2 | 62.12 |
56 | 69.50 | 6 | 6.12 | 60.50 | 56.31 | 10.50 | 2295 | 6642 | 36 | 2.38 | 65 |
58 | 71.94 | 6 | 6.31 | 62.75 | 58.31 | 10.75 | 2770 | 7347 | 40 | 2.38 | 67.44 |
60 | 73.94 | 5.88 | 6.50 | 65 | 60.31 | 10.63 | 2870 | 7980 | 40 | 2.38 | 69.44 |
Flange NPS | Outside Diam. |
Minimum Thickness | O.D. of Raised Face |
Hub Diam. | Length Thru Hub |
Approx. Weight (lbs) | Drilling | ||||
Weld Neck Flange | Blind | Weld Neck Flange | Weld Neck Flange | Blind Flange | No. Holes | Diam. Holes |
Bolt Circle Diam. |
||||
26 | 33.50 | 3.50 | 3.50 | 28 | 27.12 | 5.88 | 360 | 875 | 28 | 1.50 | 30.75 |
28 | 36 | 3.75 | 3.75 | 30 | 29.12 | 6.25 | 450 | 1081 | 24 | 1.62 | 33 |
30 | 38.25 | 4 | 4 | 32.25 | 31.25 | 6.69 | 530 | 1302 | 28 | 1.62 | 35.25 |
32 | 40.75 | 4.25 | 4.25 | 34.38 | 33.25 | 7.06 | 635 | 1570 | 28 | 1.75 | 37.50 |
34 | 42.75 | 4.38 | 4.38 | 36.50 | 35.38 | 7.38 | 690 | 1780 | 32 | 1.75 | 39.50 |
36 | 45.50 | 4.69 | 4.69 | 38.62 | 37.50 | 7.88 | 855 | 2160 | 28 | 1.88 | 42 |
Flange NPS | Outside Diam. |
Minimum Thickness | O.D. of Raised Face |
Hub Diam. | Length Thru Hub |
Approx. Weight (lbs) | Drilling | ||||
Weld Neck Flange | Blind | Weld Neck Flange | Weld Neck Flange | Blind Flange | No. Holes | Diam. Holes |
Bolt Circle Diam. |
||||
26 | 35 | 4.38 | 4.38 | 28.62 | 27.50 | 7.12 | 550 | 1195 | 28 | 1.75 | 31.75 |
28 | 37.50 | 4.56 | 4.56 | 30.88 | 29.62 | 7.50 | 650 | 1427 | 28 | 1.88 | 34 |
30 | 40.25 | 4.94 | 5 | 33.12 | 31.75 | 8.062 | 810 | 1800 | 28 | 2 | 36.50 |
32 | 42.75 | 5.12 | 5.31 | 35.25 | 33.88 | 8.50 | 950 | 2160 | 28 | 2.12 | 38.75 |
34 | 45.75 | 5.56 | 5.68 | 37.50 | 36 | 9.19 | 1205 | 2645 | 24 | 2.38 | 41.50 |
36 | 47.75 | 5.75 | 5.94 | 39.75 | 38.12 | 9.56 | 1340 | 3013 | 28 | 2.38 | 43.50 |
Flange NPS | Outside Diam. | Minimum Thickness | O.D. of Raised Face | Hub Diam. | Length Thru Hub | Approx. Weight (lbs) | Drilling | ||||
Weld Neck Flange | Blind | Weld Neck Flange | Weld Neck Flange | Blind Flange | No. Holes | Diam. Holes | Bolt Circle Diam. | ||||
26 | 40.25 | 5.31 | 6.06 | 30 | 29.25 | 10.19 | 1050 | 2185 | 20 | 2.63 | 35.50 |
28 | 43.50 | 5.81 | 6.56 | 32.25 | 31.38 | 10.88 | 1520 | 2762 | 20 | 2.88 | 38.25 |
30 | 46.50 | 6.12 | 6.93 | 34.50 | 33.50 | 11.38 | 1820 | 3334 | 20 | 3.13 | 40.75 |
32 | 48.75 | 6.31 | 7.31 | 36.50 | 35.75 | 11.94 | 2065 | 3865 | 20 | 3.13 | 43 |
34 | 51.75 | 6.75 | 7.68 | 39 | 37.88 | 12.56 | 2450 | 4575 | 20 | 3.38 | 45.50 |
36 | 53 | 6.81 | 7.94 | 40.50 | 40 | 12.81 | 2520 | 4963 | 24 | 3.13 | 47.25 |
Flange ASME B16.47-B (API 605) | ||||||||
NPS Size | CLASS 150 | CLASS 300 | CLASS 600 | CLASS 900 | ||||
WELDING NECK | BLIND | WELDING NECK | BLIND | WELDING NECK | BLIND | WELDING NECK | BLIND | |
26 | 65 | 165 | 193 | 404 | 260 | 534 | ||
28 | 75 | 200 | 211 | 457 | 305 | 637 | ||
30 | 82 | 226 | 258 | 555 | 378 | 793 | ||
32 | 94 | 263 | 315 | 693 | 436 | 925 | ||
34 | 113 | 320 | 339 | 765 | 550 | 1150 | ||
36 | 128 | 374 | 380 | 858 | 591 | 1290 | ||
38 | 153 | 434 | 425 | 1005 | 668 | 1481 | ||
40 | 166 | 489 | 459 | 1132 | 718 | 1662 | ||
42 | 182 | 560 | 514 | 1280 | 888 | 1989 | ||
44 | 195 | 626 | 567 | 1466 | 942 | 2188 | ||
46 | 229 | 709 | 666 | 1657 | 1046 | 2458 | ||
48 | 248 | 799 | 687 | 1772 | 1237 | 2859 | ||
50 | 268 | 899 | 797 | 2029 | 1412 | 3280 | ||
52 | 284 | 985 | 806 | 2230 | 1481 | 3573 | ||
54 | 309 | 1081 | 840 | 2310 | 1623 | 3949 | ||
56 | 329 | 1181 | 1117 | 2891 | 1829 | 4423 | ||
58 | 391 | 1322 | 1194 | 3093 | 1939 | 4791 | ||
60 | 414 | 1430 | 1215 | 3213 | 2336 | 5533 |
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