Manufacturer, Exporter & Supplier of Weld Neck Flanges A / B , Carbon Steel Weld Neck Flanges A / B, SS Weld Neck Flanges A / B

Weld Neck Flanges A / B

Weld Neck Flanges A / B

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.
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