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Weld Neck Flange Manufacturer

Typically sold to industries that have a process based piping system, weld neck flanges are the most widely used type of flange. Many Weld Neck Flange Manufacturer prefer using the ASME B16.5 standard as a guidance system while producing these flanges. Since the ASME B16.5 standard allots requirements in terms of the material used, pressure and temperature rating, a pre-defined set of tolerances in addition to the testing methods to be used, size and dimensions as well. The pressure ranting for an ASME B16.5 weld neck flange ranges between class 150 to class 2500. Although one of the more expensive costing devices used in a piping system, most industries prefer using the class 150 WNRF flange since they offer the highest level of joint integrity on account of being Butt-welded to a pipe.

Stainless Steel Weld Neck Flange, Carbon Steel Weld Neck Flange manufacturer in India

ASME B16.5 Weld Neck Flange

ASME B16.5 Weld Neck Flange

Stainless Steel Weld Neck Flange

Stainless Steel Weld Neck Flange

Carbon Steel Weld Neck Flange

Carbon Steel Weld Neck Flange

Buy ASME B16.5 weld neck flange, class 150 weld neck flange at factory price

Moreover, these pipes are used for both high temperature as well as high pressure applications. Generally, stainless steel grades are preferred for high temperature settings, while carbon and alloy steel grades are used for pressure settings. Since the Carbon Steel Weld Neck Flange is to be butt-welded, the carbon content of the alloy needs to be less, in order to facilitate the welding process.  And since carbon steel grades cost low, the cost of producing them is lowered too. In comparison to both alloy steel and carbon steel grades, the Stainless Steel Weld Neck Flange is more expensive. However, the fact that stainless steel flanges outperform either of the forementioned grades, makes up for its expensiveness.

Table of Content

Specifications Chart of ASME B16.5 Weld Neck Flange

ASME B16.5 Weld Neck Flange Size Chart 1/2″ (15 NB) to 48″ (1200NB) DN10~DN5000
Weld Neck Flange Standards ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, GOST Flange, ASME/ANSI B16.5/16.36/16.47A/16.47B, MSS S44, ISO70051, JISB2220, BS1560-3.1,
API7S-15, API7S-43, API605, EN1092
UNI 6Bar 10Bar 16Bar 25Bar 40Bar
EN 6Bar 10Bar 16Bar 25Bar 40Bar
Weld Neck Flange Pressure Rating ANSI Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS
Weld Neck Flange Pressure Calculation in DIN 6Bar 10Bar 16Bar 25Bar 40Bar / PN6 PN10 PN16 PN25 PN40, PN64
JIS 5K, 10 K, 16 K 20 K, 30 K, 40 K, 63 K
Test Certificates EN 10204/3.1B
Raw Materials Certificate
100% Radiography Test Report
Third Party Inspection Report, etc
Coating Oil Black Paint, Anti-rust Paint, Zinc Plated, Yellow Transparent, Cold and Hot Dip Galvanized
Most common types of Weld Neck Flange forged / Threaded / Screwed / Plate
Production technique
  • forged, Heat treated and machined
Connect Type/ Flange Face Type Raised Face (RF), Ring Type Joint (RTJ), Flat Face (FF), Large Male-Female (LMF), Lap-Joint Face (LJF), Small Male-Female (SMF), Small Tongue, Large Tongue & Groove, , Groove
Special design

As per your drawing

AS, ANSI, BS, DIN and JIS
15 NB (1/2″) to 200 NB (8″)
Equal and Reducing Configurations
Origin Indian / West Europe / Japan / USA / Korean
Manufacturer of

ANSI DIN, GOST, JIS, UNI, BS, AS2129, AWWA, EN, SABS, NFE etc.
Weld Neck Flange: -BS Flange, EN Flange, API 6A Flange, ANSI Flange, ASME Flange, DIN Flange, EN1092-1 Flange, UNI Flange, JIS/ KS Flange, BS4504 Flange, GB Flange,
AWWA C207 Flange, GOST Flange, PSI Flange

  • B.S: BS4504 , BS3293, BS1560, BS10
  • AS 2129: Table D; Table E; Table H
  • ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings
  • ANSI : ANSI B16.5, ANSI B16.47(API605), MSS SP44, ANSI B16.36, ANSI B16.48
  • ANSI B16.5, ANSI B16.47, MSS SP44, ANSI B16.36, ANSI B16.48
  • American standard (ANSI)
  • German (DIN)
  • British standard (BS)
  • DIN: DIN 2527, DIN 2566, DIN 2573, DIN 2576, DIN 2641, DIN 2642, DIN 2655, DIN 2656, DIN 2627, DIN 2628, DIN 2629, DIN 2631, DIN 2632, DIN 2633, DIN 2634, DIN 2635, DIN 2636, DIN 2637, DIN 2638 Weld Neck Flange
  • The other standard: AWWA C207; EN1092-1, GOST12820, JIS B2220; KS B1503, SABS1123; NFE29203; UNI2276
Test Direct-reading Spectrograph, Hydrostatic testing machine, X-ray detector, UI trasonic flaw detector, Magnetic particle detector
Equipment Press machine, Bending machine, Pushing Machine, electric bevelling machine, Sand-blasting machine etc

Supplier of Alloy steel expander weld neck flange, alloy 20 weld neck flange at best price

Available Material of Weld Neck Flange

Carbon Steel
  • ASTM A105
  • ASME SA105
  • DIN 1.0402
  • DIN 1.0460
  • DIN 1.0619
  • ASTM A105N
  • ASME SA105N
  • ASTM A350 LF2
  • ASME SA350
  • High Yield CS ASTM A694
Stainless Steel
  • ASTM A182 F304
  • ASTM A182 F304L
  • ASTM A182 F316
  • ASTM A182 F316L
  • ASTM A182 F317
  • ASTM A182 F317L
  • ASTM A182 F321
  • ASTM A182 F321H
  • ASTM A182 F347
  • ASTM A182 F347H
Alloy Steel
  • ASTM A182 F5
  • ASTM A182 F9
  • ASTM A182 F11
  • ASTM A182 F22
  • ASTM A182 F91
Inconel
  • Inconel 600
  • Inconel 601
  • Inconel 625
  • Inconel 718
  • Inconel x750
Copper T1, T2, C10100, C10200, C10300, C10400, C10500, C10700, C10800, C10910,C10920, TP1, TP2, C10930, C11000, C11300, C11400, C11500, C11600, C12000,C12200, C12300, TU1, TU2, C12500, C14200, C14420, C14500, C14510, C14520, C14530, C17200, C19200,
C21000, C23000, C26000, C27000, C27400, C28000, C33000, C33200, C37000, C44300, C44400, C44500, C60800, C63020, C68700, C70400, C70600, C70620, C71000, C71500, C71520, C71640, etc
Copper Nickel Copper Nickel 90/10 (C70600 ), Cupro Nickel 70/30 (C71500), UNS C71640
Brass 3602 / 2604 / H59 / H62 / etc.
Hastelloy Hastelloy C276 (UNS N10276), C22 (UNS N06022), C4, C2000, B2, B3, X
Monel Monel 400 (UNS No. N04400), Monel 500 (UNS No. N05500)
Alloy 20 Carpenter® 20 Alloy, Alloy 20Cb-3
Aluminium 5052 /6061/ 6063 / 2017 / 7075 / etc.
Nickel Nickel 200, Nickel 201
Duplex S31803 / S32205 A182 Gr F51 / F52 / F53 / F54 / F55 / F57 / F59 / F60 / F61
Super Duplex S32750 / S32760 A182 Gr F51 / F52 / F53 / F54 / F55 / F57 / F59 / F60 / F61
Incoloy Incoloy 800, Incoloy 800H, Incoloy 800HT (UNS N08800), Incoloy 825 (UNS N08825)
254 Smo SMO 254/6Mo, UNS S31254, DIN 1.4547
Nimonic Nimonic 75, Nimonic 80A, Nimonic 90
Other material Tin bronze, Alumunum bronze, Lead bronze
Titanium
  • ASTM B381 Titanium Gr. 1
  • ASTM B381 Titanium Gr. 2
  • ASTM B381 Titanium Gr. 4
  • ASTM B381 Titanium Gr. 5
  • ASTM B381 Titanium Gr. 7
Ready stock of Hastelloy Reducing weld neck flange, SS Weld Neck Flange in any shape and size

Dimensions of ANSI B16.5 Weld Neck Flange

Dimension of Weld Neck Flanges
 
Nominal size
Outside diam. of flange
Thick. of flange
Diam. of raised face
Diam of hub at base
Diam. of hub at point of welding
Length thru hub
No. of holes
Diam. of holes
Diam. of bolts
Diam. of bolt circle
Approx. weight pounds Kg
O
C
R
X
A
Y
in.
1/2″
3.50
0.44
1.38
1.19
0.84
1.88
4
0.62
1/2
2.38
2
mm.
88.9
11.2
35.1
30.2
21.3
47.8
15.7
12.7
60.5
1
in.
3/4″
3.88
0.50
1.69
1.50
1.05
2.06
4
0.62
1/2
2.75
2
mm.
98.6
12.7
42.9
38.1
26.7
52.3
15.7
12.7
69.9
1
in.
1″
4.25
0.56
2.00
1.94
1.32
2.19
4
0.62
1/2
3.12
3
mm.
108.0
14.2
50.8
49.3
33.5
55.6
15.7
12.7
79.2
1
in.
1 1/4″
4.62
0.62
2.50
2.31
1.66
2.25
4
0.62
1/2
3.50
3
mm.
117.3
15.7
63.5
58.7
42.2
57.2
15.7
12.7
88.9
1
in.
1 1/2″
5.00
0.69
2.88
2.56
1.90
2.44
4
0.62
1/2
3.88
4
mm.
127.0
17.5
73.2
65.0
48.3
62.0
15.7
12.7
98.6
2
in.
2″
6.00
0.75
3.62
3.06
2.38
2.50
4
0.75
5/8
4.75
6
mm.
152.4
19.1
91.9
77.7
60.5
63.5
19.1
15.9
120.7
3
in.
2 1/2″
7.00
0.88
4.12
3.56
2.88
2.75
4
0.75
5/8
5.50
8
mm.
177.8
22.4
104.6
90.4
73.2
69.9
19.1
15.9
139.7
4
in.
3″
7.50
0.94
5.00
4.25
3.50
2.75
4
0.75
5/8
6.00
10
mm.
190.5
23.9
127.0
108.0
88.9
69.9
19.1
15.9
152.4
5
in.
3 1/2″
8.50
0.94
5.50
4.81
4.00
2.81
8
0.75
5/8
7.00
12
mm.
215.9
23.9
139.7
122.2
101.6
71.4
19.1
15.9
177.8
5
in.
4″
9.00
0.94
6.19
5.31
4.50
3.00
8
0.75
5/8
7.50
15
mm.
228.6
23.9
157.2
134.9
114.3
76.2
19.1
15.9
190.5
7
in.
5″
10.00
0.94
7.31
6.44
5.56
3.50
8
0.88
3/4
8.50
19
mm.
254.0
23.9
185.7
163.6
141.2
88.9
22.4
19.1
215.9
9
in.
6″
11.00
1.00
8.50
7.56
6.63
3.50
8
0.88
3/4
9.50
24
mm.
279.4
25.4
215.9
192.0
168.4
88.9
22.4
19.1
241.3
11
in.
8″
13.50
1.12
10.62
9.69
8.63
4.00
8
0.88
3/4
11.75
39
mm.
342.9
28.4
269.7
246.1
219.2
101.6
22.4
19.1
298.5
18
in.
10″
16.00
1.19
12.75
12.00
10.75
4.00
12
1.00
7/8
14.25
52
mm.
406.4
30.2
323.9
304.8
273.1
101.6
25.4
22.2
362.0
24
in.
12″
19.00
1.25
15.00
14.38
12.75
4.50
12
1.00
7/8
17.00
80
mm.
482.6
31.8
381.0
365.3
323.9
114.3
25.4
22.2
431.8
36
in.
14″
21.00
1.38
16.25
15.75
14.00
5.00
12
1.12

1
18.75
110
mm.
533.4
35.1
412.8
400.1
355.6
127.0
28.4
25.4
476.3
50
in.
16″
23.50
1.44
18.50
18.00
16.00
5.00
16
1.12

1
21.25
140
mm.
596.9
36.6
469.9
457.2
406.4
127.0
28.4
25.4
539.8
64
in.
18″
25.00
1.56
21.00
19.88
18.00
5.50
16
1.25
1 1/8
22.75
150
mm.
635.0
39.6
533.4
505.0
457.2
139.7
31.8
28.6
577.9
68
in.
20″
27.50
1.69
23.00
22.00
20.00
5.69
20
1.25
1 1/8
25.00
180
mm.
698.5
42.9
584.2
558.8
508.0
144.5
31.8
28.6
635.0
82
in.
24″
32.00
1.88
27.25
26.12
24.00
6.00
20
1.38
1 1/4
29.50
260
mm.
812.8
47.8
692.2
663.4
609.6
152.4
35.1
31.8
749.3
118
Stockist and Distributor of an extensive range of Weld neck flange, Nickel Alloy weld neck flange manufacturer in Mumbai, India

Price List of Weld Neck Flange

Types of Weld neck flanges Price Unit
stainless steel Weld neck flanges class 150 $22.45 NOS
stainless steel Weld neck flanges class 300 $25.39 NOS
stainless steel Weld neck flanges class 600 $31.19 NOS
carbon steel Weld neck flanges class 150 $75.89 NOS
carbon steel Weld neck flanges class 300 $88.12 NOS
carbon steel Weld neck flanges class 600 $99.52 NOS
Weld neck flanges ansi b16 5 class 150 $75.56 NOS
Weld neck flanges ansi b16 5 class 300 $95.56 NOS
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