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Long Weld Neck Flange

Long Weld Neck Flange has an extended neck that is welded to the flange. The extended neck guides the pipe into the flange and has additional surface for fitting and grip. This type of flanges provide an added reinforcement to the connection. The Stainless Steel Long Weld Neck Flange is made up of 304 and 316 grades of austenitic stainless steels. However, there are other material types such as carbon steel, duplex steel and high alloy steels that are used to make the flanges.

Stainless Steel Long Weld Neck Flange

Stainless Steel Long Weld Neck Flange

Carbon Steel Long Weld Neck Flange

Carbon Steel Long Weld Neck Flange

ASME B16.5 Long Weld Neck Flange

ASME B16.5 Long Weld Neck Flange

The material grade is chosen based on the chemical, mechanical and physical property requirements of the applications. The Carbon Steel Long Weld Neck is used in high wear and tear applications. The carbon steel flanges are also tougher than their stainless steel counterparts. There are different sizes and dimensions to these flanges according to different standard specifications. The Pn16 Long Weld Neck Flange has a pressure number of PN16 while there are flanges that range from Pn6 through PN64. These are also noted by the pressure classes ranging from class 150 through class 2500. The ASME B16.5 Long Weld Neck Flange can come in ½ inches to 48 inches in size. The pressure numbers and pressure classes are dependent on the flange material, the diameter and dimensions of the flanges. The ASME 16.48 Spectacle Long Weld Neck is a special type of flange in which the shape resembles a spectacle. There is a disc and a ring joint together at one point on the exterior so that the disc or the ring could be switched to fit onto the pipe. The usage is that the pipe can be opened and closed as necessary by just rotating the ring or disc into place.

Table of Content



Specification of Long Weld Neck Flange


Type Long Weld Neck Flanges
Size ½” (15 NB) to 48″ (1200NB)
Standard ANSI B16.5, ANSI B16.47, ANSI B16.36, ANSI B16.48, BS 4504, EN1092, UNI 2277/2278, DIN, JIS, SABS1123, GOST-12820
Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS, DIN Standard ND-6,10, 16, 25, 40 Etc.
DIN DIN2527, DIN2566, DIN2573, DIN2576, DIN2641, DIN2642, DIN2655, DIN2656, DIN2627, DIN2628, DIN2629, DIN 2631, DIN2632, DIN2633, DIN2634, DIN2635, DIN2636,DIN2637, DIN2638, DIN2673
BS BS4504 , BS4504, BS1560, BS10
In Form SORF, WNRF, BLRF, SWRF, LAP Joint, Threaded, Reducing, Spectacle, etc
Specialize As per drawing
Coating/Surface Treatment Anti-rust Paint, Oil Black Paint, Yellow Transparent, Zinc Plated, Cold and Hot Dip Galvanized
Connection Type Ring Type Joint, Lap-Joint Face, Raised Face, Flat Face, Large Male-Female, Small Male-Female, Large
Flange Face Type Flat Face (FF), Raise Face (RF), Ring Joint (RJT)
Dimensions ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings
Packing No Fumigate or Fumigate Plywood/Wood Pallet or Case
Usage Oil Field, Offshore, Water System, Shipbuilding, Natural Gas, Electric Power, Pipe Projects etc.

Different ASME B16.5 Long Weld Neck Flange Types


Class 150 Long Weld Neck Flange

Class 150 Long Weld Neck Flange

Long Weld Neck Flange Cap

Long Weld Neck Flange Cap

Carbon Steel Long Weld Neck Flange

Carbon Steel Long Weld Neck Flange

Long Weld Neck Flange Class 300

Long Weld Neck Flange Class 300

Class 600 Long Weld Neck Flange

Class 600 Long Weld Neck Flange

Long Weld Neck Flange Drilled And Tapped

Long Weld Neck Flange Drilled And Tapped

B16.47 Long Weld Neck Flange

B16.47 Long Weld Neck Flange

Long Weld Neck Flange Brass

Long Weld Neck Flange Brass

Paddle Long Weld Neck Flange

Paddle Long Weld Neck Flange

Long Weld Neck Flange With Bleed Valve

Long Weld Neck Flange With Bleed Valve

Series B Long Weld Neck Flange

Series B Long Weld Neck Flange

Long Weld Neck Flange Asme B16.5 Class 300

Long Weld Neck Flange Asme B16.5 Class 300


ANSI B16.5 Long Weld Neck Flange Dimension Chart


Pipe
O.D.
Thk. Of
Diameter
Hub
Diameter
Length
Diam. of
Number
Diam. of
Normal
Flange
of Raised
Diameter
Bolt
Flange
of Bore
Through Hub
of Bolts
Holes
Diam.
Min
Face
at Bevel
Circle
inch
O
C
R
A
B
H
H1
BC
n
d
1/2"
95.5
14.3
34.9
38.1
12.7
228. 6
304. 8
66.7
4
15.8
3/4"
117. 5
15.9
42.9
47.6
19.1
228. 6
304. 8
82.5
4
19
1"
124. 0
17.5
50.8
54
25.4
228. 6
304. 8
88.9
4
19
1-1/4"
133. 5
19.1
63.5
63.5
31.8
228. 6
304. 8
98.4
4
19
1-1/2"
155. 5
20.6
73
69.8
38.1
228. 6
304. 8
114.
3
4
22.5
2"
165. 0
22.2
92.1
82.5
50.8
228. 6
304. 8
127.
0
8
19
2-1/2"
190. 5
25.4
104.
8
100.
0
63.5
228. 6
304. 8
149.
2
8
22.5
3"
209. 5
28.6
127.
0
117.
5
76.2
228. 6
304. 8
168.
3
8
22.5
3-1/2"
228. 5
30.2
139.
7
133.
4
88.9
228. 6
304. 8
184.
1
8
22.5
4"
254. 0
31.8
157.
2
146.
0
101. 6
228. 6
304. 8
200.
0
8
22.5
5"
279. 5
34.9
185.
7
177.
8
127. 0
228. 6
304. 8
234.
9
8
22.5
6"
317. 5
36.5
215.
9
206.
4
152. 4
228. 6
304. 8
269.
9
12
22.5
8"
381. 0
41.3
269.
9
260.
3
203. 2
228. 6
304. 8
330.
2
12
25.5
10"
444. 5
47.6
323.
9
320.
7
254. 0
228. 6
304. 8
387.
3
16
28.5
12"
520. 5
50.8
381.
0
374.
6
304. 8
228. 6
304. 8
450.
8
16
31.8
14"
584. 0
54
412.
8
425.
4
355. 6
228. 6
304. 8
514.
3
20
31.8
16"
647. 5
57.2
469.
9
482.
6
406. 4
228. 6
304. 8
571.
5
20
35.1
18"
711. 0
60.3
533.
4
533.
4
457. 2
228. 6
304. 8
628.
6
24
35.1
20"
774. 5
63.5
584.
2
587.
3
508. 0
228. 6
304. 8
685.
8
24
35.1
24"
914. 5
69.9
692.
2
701.
6
609. 6
228. 6
304. 8
812.
8
24
41.2

Weld Neck Flange Class 400 Dimensions
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 Refer Note 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
4 100 255 35 146 114.3 89 157.2 7 200 1.6
5 125 280 38.1 178 141.3 102 185.7 7 235 1.6
6 150 320 41.3 206 168.3 103 215.9 7 269.9 1.6
8 200 380 47.7 260 219.1 117 269.9 7 330 1.6
10 250 445 54 321 273 124 323.8 7 387.4 1.6
12 300 520 57.2 375 323.8 137 381 7 450.8 1.6
14 350 585 60.4 425 355.6 149 412.8 7 514.4 1.6
16 400 650 63.5 483 406.4 152 469.9 7 571.5 1.6
18 450 710 66.7 533 457 165 533.4 7 628.6 1.6
20 500 775 69.9 587 508 168 584.2 7 685.8 1.6
24 600 915 76.2 702 610 175 692.2 7 812.8 1.6

Weld Neck Flange Dimensions Class 600
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 Refer Note 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

Weld Neck Flange Dimensions Class 900
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 15 120 22.3 38 21.3 60 Refer Note 34.9 7 82.6 1.6
3/4 20 130 25.4 44 26.7 70 42.9 7 88.9 1.6
1 25 150 28.6 52 33.4 73 50.8 7 101.6 1.6
1 1/4 32 160 28.6 64 42.2 73 63.5 7 111.1 1.6
1 1/2 40 180 31.8 70 48.3 83 73 7 123.8 1.6
2 50 215 38.1 105 60.3 102 92.1 7 165.1 1.6
2 1/2 65 245 41.3 124 73 105 104.8 7 190.5 1.6
3 80 240 38.1 127 88.9 102 127 7 190.5 1.6
4 100 290 44.5 159 114.3 114 157.2 7 235 1.6
5 125 350 50.8 190 141.3 127 185.7 7 279.4 1.6
6 150 380 55.6 235 168.3 140 215.9 7 317.5 1.6
8 200 470 63.5 298 219.1 162 269.9 7 393.7 1.6
10 250 545 69.9 368 273 184 323.8 7 469.9 1.6
12 300 610 79.4 419 323.8 200 381 7 533.4 1.6
14 350 640 85.8 451 355.6 213 412.8 7 558.8 1.6
16 400 705 88.9 508 406.4 216 469.9 7 616 1.6
18 450 785 101.6 565 457 229 533.4 7 685.8 1.6
20 500 855 108 622 508 248 584.2 7 749.3 1.6
24 600 1040 139.7 749 610 292 692.2 7 901.7 1.6

Class 1500 Weld Neck Flange Dimensions
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 15 120 22.3 38 21.3 60 Refer Note 34.9 7 82.6 1.6
3/4 20 130 25.4 44 26.7 70 42.9 7 88.9 1.6
1 25 150 28.6 52 33.4 73 50.8 7 101.6 1.6
1 1/4 32 160 28.6 64 42.2 73 63.5 7 111.1 1.6
1 1/2 40 180 31.8 70 48.3 83 73 7 123.8 1.6
2 50 215 38.1 105 60.3 102 92.1 7 165.1 1.6
2 1/2 65 245 41.3 124 73 105 104.8 7 190.5 1.6
3 80 265 47.7 133 88.9 117 127 7 203.2 1.6
4 100 310 54 162 114.3 124 157.2 7 241.3 1.6
5 125 375 73.1 197 141.3 156 185.7 7 292.1 1.6
6 150 395 82.6 229 168.3 171 215.9 7 317.5 1.6
8 200 485 92.1 292 219.1 213 269.9 7 393.7 1.6
10 250 585 108 368 273 254 323.8 7 482.6 1.6
12 300 675 123.9 451 323.8 283 381 7 571.5 1.6
14 350 750 133.4 495 355.6 298 412.8 7 635 1.6
16 400 825 146.1 552 406.4 311 469.9 7 704.8 1.6
18 450 915 162 597 457 327 533.4 7 774.7 1.6
20 500 985 177.8 641 508 356 584.2 7 831.8 1.6
24 600 1170 203.2 762 610 406 692.2 7 990.6 1.6

Class 2500 Weld Neck Flange Dimensions
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 15 135 30.2 43 21.3 73 Refer Note 34.9 7 88.9 1.6
3/4 20 140 31.8 51 26.7 79 42.9 7 95.2 1.6
1 25 160 35 57 33.4 89 50.8 7 108 1.6
1 1/4 32 185 38.1 73 42.2 95 63.5 7 130.2 1.6
1 1/2 40 205 44.5 79 48.3 111 73 7 146 1.6
2 50 235 50.9 95 60.3 127 92.1 7 171.4 1.6
2 1/2 65 265 57.2 114 73 143 104.8 7 196.8 1.6
3 80 305 66.7 133 88.9 168 127 7 228.6 1.6
4 100 355 76.2 165 114.3 190 157.2 7 273 1.6
5 125 420 92.1 203 141.3 229 185.7 7 323.8 1.6
6 150 485 108 235 168.3 273 215.9 7 368.3 1.6
8 200 550 127 305 219.1 318 269.9 7 438.2 1.6
10 250 675 165.1 375 273 419 323.8 7 539.8 1.6
12 300 760 184.2 441 323.8 464 381 7 619.1 1.6

Tolerance of Long Weld Neck Flange


Outside Diameter
≤ 24 = 1.6 mm | > 24 = ± 3.2 mm		 Inside Diameter
not applicable
Diameter of Contact Face
1.6 mm Raised Face = ± 0.8 mm
6.35 mm Raised Face, Tongue & Groove / Male-Female = ± 0.4 mm		 Outside Diameter of Hub
≤ 12 = + 2.4 mm / - 1.6 mm | ≥ 14 = ± 3.2 mm
Diameter of Counterbore
not applicable		 Drilling
Bolt Circle = 1.6 mm | Bolt Hole Spacing = ± 0.8 mm
Eccentricity of Bolt Circle with Respect to Facing
≤ 2½ = 0.8 mm max. | ≥ 3 = 1.6 mm max.
Thickness
≤ 18 = + 3.2 mm / - 0 | ≥ 20 = + 4.8 mm / - 0		 Length thru Hub
≤ 18 = + 3.2 mm / - 0.8 mm | ≥ 20 = + 4.8 mm / - 1.6 mm

Stainless Steel Long Weld Neck Flange Schedule Chart


WELDING NECK FLANGES BORES (in inchines)
Nom
Pipe
Size		 Outside
Diam		 Sched
10		 Sched
20		 Sched
30		 Std.
Wall		 Sched
40		 Sched
60		 Extra
Strong		 Sched
80		 Sched
100		 Sched
120		 Sched
140		 Sched
160		 Double
Extra
Strong
1/2” 0.840 0.674 – – 0.622 0.622 – 0.546 0.546 – – – 0.464 0.252
3/4” 1.050 0.884 – – 0.824 0.824 – 0.742 0.742 – – – 0.612 0.434
1” 1.315 1.097 – – 1.049 1.049 – 0.957 0.957 – – – 0.815 0.599
1.1/4” 1.660 1.442 – – 1.380 1.380 – 1.278 1.278 – – – 1.160 0.896
1.1/2” 1.900 1.682 – – 1.610 1.610 – 1.500 1.500 – – – 1.338 1.100
2” 2.375 2.157 – – 2.067 2.067 – 1.939 1.939 – – – 1.687 1.503
2.1/2” 2.875 2.635 – – 2.469 2.469 – 2.323 2.323 – – – 2.125 1.771
3” 3.500 3.260 – – 3.068 3.068 – 2.900 2.900 – – – 2.624 2.300
3-1/2” 4.000 3.760 – – 3.548 3.548 – 3.364 3.364 – – – – 2.728
4” 4.500 4.260 – – 4.026 4.026 – 3.826 3.826 – 3.624 – 3.438 3.152
5” 5.563 5.295 – – 5.047 5.047 – 4.813 4.813 – 4.563 – 4.313 4.063
6” 6.625 6.357 – – 6.065 6.065 – 5.761 5.761 – 5.501 – 5.187 4.897
8” 8.625 8.329 8.125 8.071 7.981 7.981 7.813 7.625 7.625 7.437 7.187 7.001 6.813 6.875
10” 10.750 10.420 10.250 10.136 10.020 10.020 9.750 9.750 9.562 9.312 9.062 8.750 8.500 8.750
12” 12.750 12.390 12.250 12.090 12.000 11.938 11.626 11.750 11.374 11.062 10.750 10.500 10.126 10.750
14” 14.000 13.500 13.376 13.250 13.250 13.124 12.812 13.000 12.500 12.124 11.814 11.500 11.188 –
16” 16.000 15.500 15.376 15.250 15.250 15.000 14.688 15.000 14.312 13.938 13.564 13.124 12.812 –
18” 18.000 17.500 17.376 17.124 17.250 16.876 16.500 17.000 16.124 15.688 15.250 14.876 14.438 –
20” 20.000 19.500 19.250 19.000 19.250 18.812 18.376 19.000 17.938 17.438 17.000 16.500 16.062 –
24” 24.000 23.500 23.250 22.876 23.250 22.624 22.062 23.000 21.562 20.938 20.376 19.876 19.312 –
30” 30.000 29.376 29.000 28.750 29.250 – – 29.000 – – – – – –
36” 36.000 35.376 35.000 34.750 35.250 34.500 – 35.000 – – – – – –
42” 42.000 – – – 41.250 – – 41.000 – – – – – –

Weight Chart of ASME 16.48 Spectacle Long Weld Neck


ANSI B16.5 Long Weld Neck FLANGES WEIGHT (KGS)
Nom
Pipe
Size		 150# 300# 600# 900# 1500# 2500#
WN S/O B/K WN S/O B/K WN S/O B/K WN S/O B/K WN S/O B/K WN S/O B/K
1/2” 0.7 0.4 0.5 0.8 0.7 0.8 0.9 0.8 0.8 2.1 1.8 1.9 2.1 1.8 1.9 3.2 3 3
3/4” 0.8 0.7 0.8 1.4 1.2 1.2 1.6 1.4 1.4 2.7 2.4 2.7 2.7 2.4 2.7 3.6 4 4.5
1” 1.1 0.8 0.9 1.7 1.4 1.5 1.9 1.7 1.7 3.9 3.6 3.7 3.9 3.6 3.7 5.4 5 5
1.1/4” 1.5 1.2 1.3 2.2 1.8 2 2.6 2.1 2.4 4.5 4.1 4.3 4.5 4.1 4.3 7.8 8 8
1.1/2” 1.8 1.4 1.6 3.2 2.7 2.9 3.6 3.1 3.4 6.2 5.4 5.9 6.2 5.4 5.9 11.5 11 11
2” 2.7 2.2 2.6 3.6 3.2 3.5 4.7 3.9 4.4 11.3 10.5 11.3 11.3 10.5 11.3 19 17 17
2.1/2” 4.4 3.5 4.1 5.4 4.5 5.3 4.8 5.4 6.8 16.3 15.8 16 16.3 15.8 16 24 25 25
3” 5.2 3.8 5.1 7.3 5.9 7.2 8.7 7.3 8.9 15 12.3 16.8 21 21.5 19.5 42.6 38 39
3-1/2” 6.4 5 6.5 8.9 7.5 9.2 11.6 9 12.7 – – – – – – – – –
4” 7.5 5.6 7.5 11.8 10 12.2 18.4 16.5 18.6 24 23.2 24.5 31.8 31 33 64 58 60
5” 9.2 6.5 9.2 16 12.5 16 31 28.5 30.8 38.5 37.5 39.5 59 58.8 60 111 95 101
6” 11.0 8.1 11.8 20.2 16.5 22 37 36.2 38 50 48.3 51.5 72 74 75 171 146 156
8” 18.4 13 20.4 31.2 25.5 36 54.5 51.5 62.2 85 75 89 124 112 125 261 220 242
10” 25.5 18.4 31 44.3 35 55 98.5 76.2 102 123 110 131 207 184 215 485 420 465
12” 37 28.5 47 63.5 52 82.5 105 89.5 132 168 146 187 306 264 316 698 590 665
14” 51 37.5 60 86 73 108 150 102 158 198 172 224 416 – – – – –
16” 61.5 44.5 61 112 88 139 177 150 225 225 192 259 567 – – – – –
18” 71.5 54 93 141 115 178 228 180 285 318 272 383 736 – – – – –
20” 85 72 127 173 139 228 285 231 365 376 330 482 929 – – – – –
24” 119 95 190 248 212 350 372 330 532 680 632 905 1504 – – – – –

Long Weld Neck Flange Material


Materials Standard, Grades
Stainless Steel Long Weld Neck Flange ASTM A 182, A 240 F 304, 304L, 304H, 316, 316L, 316Ti, 310, 310S, 321, 321H, 317, 347, 347H,904L
Carbon Steel Long Weld Neck Flange 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 Long Weld Neck Flange ASTM / ASME A/SA 182 & A 387 F1, F5, F9, F11, F12, F22, F91
Duplex Steel Long Weld Neck Flange ASTM / ASME A/SA 182 F 44, F 45, F51, F 53, F 55, F 60, F 61
6% Moly / Super Duplex Long Weld Neck Flange ASTM / ASME A/SA 182 F 44, F 45, F51, F 53, F 55, F 60, F 61
Low Temperature Steel Long Weld Neck Flange ASTM A350 LF2, LF3, LF6
High Yield Long Weld Neck Flange ASTM A694 F42, F52, F60, F65, F70
Nickel Alloys Long Weld Neck Flange ASTM SB564, SB160, SB472, SB162 – 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)
Copper Alloys Long Weld Neck Flange ASTM SB 61 , SB62 , SB151 , SB152 – UNS No. C 70600 (Cu-Ni 90/10), C 71500 (Cu-Ni 70/30), UNS No. C 10100, 10200, 10300, 10800, 12000, 12200
Alloys Long Weld Neck Flange ALLOY 20, ALLOY C, ALLOY C276, ALLOY B2
Other Grade of Long Weld Neck Flange Bronze, Brass, Cupro Nickel, Titanium, Inconel, Monel, Hastelloy

Types of Flanges