Flanges Manufacturer in Mumbai
NEELAM FORGE
PRODUCTS STAINLESS STEEL,INCONEL,HASTELLOYS, MONEL
FLANGES
Weld Neck Flanges A / B
Neelam Forge is the Manufacturer, Supplier, and Exporter of Stainless Steel Flanges, Inconel Flanges, Hastelloy Flanges & Monel Flanges.
We are Manufacturer, Supplier and Exporter of high Quality Weld Neck Flanges Series A/B. Weld Neck Flanges Series A/B are highly durable, corrosion resistant and reliable. our range of Weld Neck Flanges Series A/B can also manufactured as per the client’s requirement.
| Stainless Steel | : | ASTM / ASME SA 182 F 304, 304L, 304H, 309H, 310H, 316, 316H, 316L, 316 LN, 317, 317L, 321, 321H, 347, 347 H. |
| Carbon Steel | : | ASTM / ASME A 105, ASTM / ASME A 350 LF 2 |
| Alloy Steel | : | ASTM / ASME A 182 GR F 5, F 9, F 11, F 12, F 22, F 91 |
| Duplex Steel | : | ASTM / ASME SA 182 F 44, F 45, F51, F 53, F 55, F 60, F 61. |
| Copper Alloy | : | ASTM / ASME SB 61 UNS NO. C 92200 & ASTM / ASME SB 62 UNS NO. C 83600. |
| ASTM / ASME SB 151 UNS NO. 70600, 71500, C 70600 ( CU -NI- 90/10), C 71500 ( CU -NI- 70/30), | ||
| ASTM / ASME SB 152 UNS NO C 10100, C 10200, C 10300, C 10800, C 12000, C 12200. | ||
| Nickel Alloy | : | ASTM / ASME SB 564 UNS 2200 (NICKEL 200), UNS 4400 (MONEL 400), UNS 8825 INCONEL (825), UNS 6600 |
| (INCONEL 600), UNS 6601 (INCONEL 601), UNS 6625 (INCONEL 625), UNS 10276 (HASTELLOY C 276), ASTM / | ||
| ASME SB 160 UNS 2201 (NICKEL 201 ), ASTM / ASME SB 472 UNS 8020 (ALLOY 20 / 20 CB 3) |
Weld Neck Flanges A / B Dimensions
Welding neck flange bores according ASME/ANSI B16.5-1996 Pipe Flanges and Flanged Fittings – can be found in the table below
Welding Neck Flange Bores | |||||||
Nominal Pipe Size (inches) | Outside Diameter (inches) | Inside Diameter (inches) | |||||
Light Wall 1) | Schedule 20 | Schedule 30 | Standard Wall | Schedule 40 | Schedule 60 | ||
1/2 | 0.840 | 0.674 | – | – | 0.622 | 0.622 | – |
3/4 | 1.050 | 0.884 | – | – | 0.824 | 0.824 | – |
1 | 1.315 | 1.097 | – | – | 1.049 | 1.049 | – |
1 1/4 | 1.660 | 1.442 | – | – | 1.380 | 1.380 | – |
1 1/2 | 1.900 | 1.682 | – | – | 1.610 | 1.610 | – |
2 | 2.375 | 2.157 | – | – | 2.067 | 2.067 | – |
2 1/2 | 2.875 | 2.635 | – | – | 2.469 | 2.469 | – |
3 | 3.500 | 3.260 | – | – | 3.068 | 3.068 | – |
3 1/2 | 4.000 | 3.760 | – | – | 3.548 | 3.548 | – |
4 | 4.500 | 4.260 | – | – | 4.026 | 4.026 | – |
5 | 5.563 | 5.295 | – | – | 5.047 | 5.047 | – |
6 | 6.625 | 6.357 | – | – | 6.065 | 6.065 | – |
8 | 8.625 | 8.329 | 8.125 | 8.071 | 7.981 | 7.981 | 7.813 |
10 | 10.750 | 10.420 | 10.250 | 10.136 | 10.020 | 10.020 | 9.750 |
12 | 12.750 | 12.390 | 12.250 | 12.090 | 12.000 | 11.938 | 11.626 |
14 | 14.000 | 13.500 | 13.376 | 13.250 | 13.250 | 13.124 | 12.812 |
16 | 16.000 | 15.500 | 15.376 | 15.250 | 15.250 | 15.000 | 14.688 |
18 | 18.000 | 17.500 | 17.376 | 17.124 | 17.250 | 16.876 | 16.500 |
20 | 20.000 | 19.500 | 19.250 | 19.000 | 19.250 | 18.812 | 18.376 |
24 | 24.000 | 23.500 | 23.250 | 22.876 | 23.250 | 22.624 | 22.062 |
30 | 30.000 | 29.376 | 29.000 | 28.750 | 29.250 | – | – |
36 | 36.000 | 35.376 | 35.000 | 34.750 | 35.250 | 34.500 | – |
42 | 42.000 | – | – | – | 41.250 | – | – |
48 | 48.000 | – | – | – | 47.250 | – | – |
| Welding Neck Flange Bores | ||||||||
Nominal Pipe Size (inches) | Outside Diameter (inches) | Inside Diameter (inches) | ||||||
Extra Strong | Schedule 80 | Schedule 100 | Schedule 120 | Schedule 140 | Schedule 160 | Double Extra Strong | ||
1/2 | 0.840 | 0.546 | 0.546 | – | – | – | 0.464 | 0.252 |
3/4 | 1.050 | 0.742 | 0.742 | – | – | – | 0.612 | 0.434 |
1 | 1.315 | 0.957 | 0.957 | – | – | – | 0.815 | 0.599 |
1 1/4 | 1.660 | 1.278 | 1.278 | – | – | – | 1.160 | 0.896 |
1 1/2 | 1.900 | 1.500 | 1.500 | – | – | – | 1.338 | 1.100 |
2 | 2.375 | 1.939 | 1.939 | – | – | – | 1.687 | 1.503 |
2 1/2 | 2.875 | 2.323 | 2.323 | – | – | – | 2.125 | 1.771 |
3 | 3.500 | 2.900 | 2.900 | – | – | – | 2.624 | 2.300 |
3 1/2 | 4.000 | 3.364 | 3.364 | – | – | – | – | 2.728 |
4 | 4.500 | 3.826 | 3.826 | – | 3.624 | – | 3.438 | 3.152 |
5 | 5.563 | 4.813 | 4.813 | – | 4.563 | – | 4.313 | 4.063 |
6 | 6.625 | 5.761 | 5.761 | – | 5.501 | – | 5.187 | 4.897 |
8 | 8.625 | 7.625 | 7.625 | 7.437 | 7.187 | 7.001 | 6.813 | 6.875 |
10 | 10.750 | 9.750 | 9.562 | 9.312 | 9.062 | 8.750 | 8.500 | 8.750 |
12 | 12.750 | 11.750 | 11.374 | 11.062 | 10.750 | 10.500 | 10.126 | 10.750 |
14 | 14.000 | 13.000 | 12.500 | 12.124 | 11.814 | 11.500 | 11.188 | – |
16 | 16.000 | 15.000 | 14.312 | 13.938 | 13.564 | 13.124 | 12.812 | – |
18 | 18.000 | 17.000 | 16.124 | 15.688 | 15.250 | 14.876 | 14.438 | – |
20 | 20.000 | 19.000 | 17.938 | 17.438 | 17.000 | 16.500 | 16.062 | – |
24 | 24.000 | 23.000 | 21.562 | 20.938 | 20.376 | 19.876 | 19.312 | – |
30 | 30.000 | 29.000 | – | – | – | – | – | – |
36 | 36.000 | 35.000 | – | – | – | – | – | – |
42 | 42.000 | 41.000 | – | – | – | – | – | – |
48 | 48.000 | 47.000 | – | – | – | – | – | – |
1) Stainless steel Schedule 10S diameters are equal to Light Wall in sizes up to 12″ and to Schedule 10 above.
