Weld Neck Flanges A / B

Guru Gautam Steels is Manufacturer, Supplier and Exporter of high Quality Weld Neck Flanges Series A/B. Also, we can produce as per your drawings and specifications.
Weld Neck Flanges A/B

ANSI B16.5 Weld Neck Flanges A, ASME B16.47 Weld Neck Flanges B, DIN Weld Neck Flanges A/B Manufacturer & Supplier in india.

WELD NECK FLANGES A/B SPECIFICATION :

Standard - ANSI/ASME : ANSI B16.5, ANSI B16.47, MSS SP44, ANSI B16.36, ANSI B16.48

DIN : DIN2527, DIN2566, DIN2573, DIN2576, DIN2641, DIN2642, DIN2655, DIN2656, DIN2627, DIN2628, DIN2629, DIN 2631, DIN2632, DIN2633, DIN2634, DIN2635, DIN2636, DIN2637, DIN2638, DIN2673

B.S : BS4504, BS4504, BS1560, BS10

Size : 1/2" (15 NB) to 48" (1200NB)

Class : 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS, DIN Standard ND-6,10, 16, 25, 40 Etc.

Specialize :As per drawing


WELD NECK FLANGES A/B MATERIAL & GRADES :

Stainless Steel Weld Neck A/B Flanges : ASTM A182, A240 F 304, 304L, 304H, 316, 316L, 316Ti, 310, 310S, 321, 321H, 317, 347, 347H, 904L

Carbon Steel Weld Neck A/B Flanges : ASTM / ASME A/SA 105 ASTM / ASME A 350 , ASTM A 181 LF 2 / A516 Gr.70 A36, A694 F42, F46, F52, F60, F65, F70

Alloy Steel Weld Neck A/B Flanges : ASTM / ASME A/SA 182 & A 387 F1, F5, F9, F11, F12, F22, F91

Duplex Steel Weld Neck A/B Flanges : ASTM / ASME A/SA 182 F 44, F 45, F51, F 53, F 55, F 60, F 61

Super Duplex Weld Neck A/B Flanges : ASTM / ASME A/SA 182, A240 F 44, F 45, F51, F 53, F 55, F 60, F 61

Nickel Alloy Weld Neck A/B Flanges : Nickel 200 (UNS No. N02200), Nickel 201 (UNS No. N02201), Monel 400 (UNS No. N04400), Monel 500 (UNS No. N05500), Inconel 800 (UNS No. N08800), Inconel 825 (UNS No. N08825), Inconel 600 (UNS No. N06600), Inconel 625 (UNS No. N06625), Inconel 601 (UNS No. N06601), Hastelloy C 276 (UNS No. N10276), Alloy 20 (UNS No. N08020), Titanium (Grade I & II)

Copper Alloy Weld Neck A/B Flanges : UNS No. C10100, 10200, 10300, 10800, 12000, 12200, 70600, 71500, UNS No. C 70600 (Cu -Ni- 90/10), C 71500 (Cu-Ni-70/30)

Low Temperature Carbon Steel Weld Neck A/B Flanges : ASTM A350, LF2, LF3


Weld Neck A/B Flanges Dimensions :

Welding neck flange bores according ASME/ANSI B16.5-1996 Pipe Flanges & 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.

Marking & Packing
Our products like flanges are packaged to make sure that there’s no damage throughout transit. Just in case of exports, customary export packaging is completed in wooden boxes or cases. All flanges are marked with Trademark (Company’s LOGO), Grade, Size and Lot No. On requests we can do custom marking on our products.

Test Certificates
Manufacturer Test Certificate as per EN 10204-3.1, EN 10204-3.2, Raw Materials Certificate, NABL approved Lab Test Report, 100% Radiography Test Report, Third Party Inspection Report etc.