Home > Weld Neck Flanges
Jinay Metals is a reliable manufacturer and supplier of high-quality weld neck flanges in Dubai, UAE, providing reliable and robust piping solutions for a variety of industrial sectors. Our weld neck flanges are made from high-quality stainless steel, carbon steel, and alloy materials, ensuring high strength, leak resistance, and long installation life. Jinay Metals has state-of-the-art production technology and quality standards in place; we service the oil and gas industry, petrochemical industry, power industry, and shipbuilding/marine applications, providing precision-engineered parts throughout the UAE and abroad.
Weld neck flanges are made of better materials such as stainless steel, carbon steel, alloy steel, and duplex steel to give great mechanical strength and resistance to corrosion. They contain added elements like carbon, manganese, nickel, chromium, and molybdenum that improve durability and weldability. Some mechanical properties can include high tensile and yield strength, excellent hardness, and good elongation, which allows flexibility when under load. Weld neck flanges are designed to withstand high pressure, temperature, and vibration and are ideal for critical applications where secure and leak-proof connections and longevity of use is required.
| 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 |
| Weld Neck Flange Pressure Rating ANSI | Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS Weld Neck Flange |
| Weld Neck Flange Pressure Calculation in DIN | 6Bar 10Bar 16Bar 25Bar 40Bar / PN6 PN10 PN16 PN25 PN40, PN64 Weld Neck Flange |
| JIS | 5K, 10 K, 16 K 20 K, 30 K, 40 K, 63 K Weld Neck Flange |
| UNI | 6Bar 10Bar 16Bar 25Bar 40Bar Weld Neck Flange |
| EN | 6Bar 10Bar 16Bar 25Bar 40Bar Weld Neck Flange |
| Coating | Oil Black Paint, Anti-rust Paint, Zinc Plated, Yellow Transparent, Cold and Hot Dip Galvanized Weld Neck Flange |
| Most common types of Weld Neck Flange | Forged / Threaded / Screwed / Plate |
| Test Certificates | EN 10204/3.1B Raw Materials Certificate 100% Radiography Test Report Third Party Inspection Report, etc |
| Production technique |
|
| 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 |
| 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 |
| 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
|
| Weld Neck Flange Uses & application |
|
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Choosing Weld Neck Flanges from Jinay Metals ensures unmatched quality and long-lasting performance. These Flanges are engineered for superior corrosion resistance, strength, and precision, making them ideal for a wide range of industrial applications. With a strong focus on customer satisfaction, timely delivery, and technical expertise. Jinay Metals providing reliable and high-performance Weld Neck Flanges tailored to meet your specific operational and project requirements.
|
ø |
D |
b |
g |
m |
a |
J* |
h |
k |
Holes |
l |
Kg. |
|
1/2″ |
88,9 |
11,1 |
34,9 |
30,2 |
21,3 |
15,7 |
47,6 |
60,3 |
4 |
15,9 |
0,500 |
|
3/4″ |
98,4 |
12,7 |
42,9 |
38,1 |
26,7 |
20,8 |
52,4 |
69,8 |
4 |
15,9 |
0,700 |
|
1″ |
107,9 |
14,3 |
50,8 |
49,2 |
33,5 |
26,7 |
55,6 |
79,4 |
4 |
15,9 |
1,100 |
|
1 1/4″ |
117,5 |
15,9 |
63,5 |
58,8 |
42,2 |
35,1 |
57,1 |
88,9 |
4 |
15,9 |
1,500 |
|
1 1/2″ |
127,0 |
17,5 |
73,0 |
65,1 |
48,3 |
40,9 |
61,9 |
98,4 |
4 |
15,9 |
1,800 |
|
2″ |
152,4 |
19,0 |
92,1 |
77,8 |
60,3 |
52,6 |
63,5 |
120,6 |
4 |
19,0 |
2,700 |
|
2 1/2″ |
177,8 |
22,2 |
104,8 |
90,5 |
73,1 |
62,7 |
69,8 |
139,7 |
4 |
19,0 |
4,400 |
|
3″ |
190,5 |
23,8 |
127,0 |
107,9 |
88,9 |
78,0 |
69,8 |
152,4 |
4 |
19,0 |
5,200 |
|
3 1/2″ |
215,9 |
23,8 |
139,7 |
122,2 |
101,6 |
90,2 |
71,4 |
177,8 |
8 |
19,0 |
6,400 |
|
4″ |
228,6 |
23,8 |
157,2 |
134,9 |
114,3 |
102,4 |
76,2 |
190,5 |
8 |
19,0 |
7,500 |
|
5″ |
254,0 |
23,8 |
185,7 |
163,5 |
141,2 |
128,3 |
88,9 |
215,9 |
8 |
22,2 |
9,200 |
|
6″ |
279,4 |
25,4 |
215,9 |
192,1 |
168,4 |
154,2 |
88,9 |
241,3 |
8 |
22,2 |
11,000 |
|
8″ |
342,9 |
28,6 |
269,9 |
246,1 |
219,1 |
202,7 |
101,6 |
298,4 |
8 |
22,2 |
18,300 |
|
10″ |
406,4 |
30,2 |
323,8 |
304,8 |
273,0 |
254,5 |
101,6 |
361,9 |
12 |
25,4 |
25,000 |
|
12″ |
482,6 |
31,7 |
381,0 |
365,1 |
323,8 |
304,8 |
114,3 |
431,8 |
12 |
25,4 |
39,000 |
|
14″ |
533,4 |
34,9 |
412,7 |
400,0 |
355,6 |
336,5 |
127,0 |
476,2 |
12 |
28,6 |
51,000 |
|
16″ |
596,9 |
36,5 |
469,9 |
457,2 |
406,4 |
387,3 |
127,0 |
539,7 |
16 |
28,6 |
60,000 |
|
18″ |
635,0 |
39,7 |
533,4 |
504,8 |
457,2 |
438,1 |
139,7 |
577,8 |
16 |
31,7 |
71,000 |
|
20″ |
698,5 |
42,9 |
584,2 |
558,8 |
508,0 |
488,9 |
144,5 |
635,0 |
20 |
31,7 |
88,000 |
|
22″ |
749,3 |
46,0 |
641,2 |
609,6 |
558,8 |
539,7 |
149,2 |
692,1 |
20 |
34,9 |
102,000 |
|
24″ |
812,8 |
47,6 |
692,1 |
663,6 |
609,6 |
590,5 |
152,4 |
749,3 |
20 |
34,9 |
119,000 |
|
* |
The data “J” corresponds to the STD schedule |
||||||||||
|
ANS I/ ASME / ASA B16.5 300lb/sq.in. Flange WN-RF |
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|
ø |
D |
b |
g |
m |
a |
J* |
h |
k |
Holes |
l |
Kg. |
|
1/2″ |
95,2 |
14,3 |
34,9 |
38,1 |
21,3 |
15,7 |
52,4 |
66,7 |
4 |
15,9 |
0,900 |
|
3/4″ |
117,5 |
15,9 |
42,9 |
47,6 |
26,7 |
20,8 |
57,1 |
82,5 |
4 |
19,0 |
1,500 |
|
1″ |
123,8 |
17,5 |
50,8 |
54,0 |
33,5 |
26,7 |
61,9 |
88,9 |
4 |
19,0 |
1,900 |
|
1 1/4″ |
133,3 |
19,0 |
63,5 |
63,5 |
42,2 |
35,1 |
65,1 |
98,4 |
4 |
19,0 |
2,600 |
|
1 1/2″ |
155,6 |
20,6 |
73,0 |
69,8 |
48,3 |
40,9 |
68,3 |
114,3 |
4 |
22,2 |
3,300 |
|
2″ |
165,1 |
22,2 |
92,1 |
84,1 |
60,3 |
52,6 |
69,8 |
127,0 |
8 |
19,0 |
3,600 |
|
2 1/2″ |
190,5 |
25,4 |
104,8 |
100,0 |
73,1 |
62,7 |
76,2 |
149,2 |
8 |
22,2 |
5,400 |
|
3″ |
209,5 |
28,6 |
127,0 |
117,5 |
88,9 |
78,0 |
79,4 |
168,3 |
8 |
22,2 |
7,400 |
|
3 1/2″ |
228,6 |
30,2 |
139,7 |
133,3 |
101,6 |
90,2 |
81,0 |
184,1 |
8 |
22,2 |
8,900 |
|
4″ |
254,0 |
31,7 |
157,2 |
146,0 |
114,3 |
102,4 |
85,7 |
200,0 |
8 |
22,2 |
11,900 |
|
5″ |
279,4 |
34,9 |
185,7 |
177,8 |
141,2 |
128,3 |
98,4 |
234,9 |
8 |
22,2 |
16,000 |
|
6″ |
317,5 |
36,5 |
215,9 |
206,4 |
168,4 |
154,2 |
98,4 |
269,9 |
12 |
22,2 |
20,200 |
|
8″ |
381,0 |
41,3 |
269,9 |
260,3 |
219,1 |
202,7 |
111,1 |
330,2 |
12 |
25,4 |
31,000 |
|
10″ |
444,5 |
47,6 |
323,4 |
320,7 |
273,0 |
254,5 |
117,5 |
387,3 |
16 |
28,6 |
44,300 |
|
12″ |
520,7 |
50,8 |
381,0 |
374,6 |
323,8 |
304,8 |
130,2 |
450,8 |
16 |
31,7 |
64,000 |
|
14″ |
584,2 |
54,0 |
412,7 |
425,4 |
355,6 |
336,5 |
142,9 |
514,3 |
20 |
31,7 |
88,000 |
|
16″ |
647,7 |
57,1 |
469,9 |
482,6 |
406,4 |
387,3 |
146,0 |
571,5 |
20 |
34,9 |
113,000 |
|
18″ |
711,2 |
60,3 |
533,4 |
533,4 |
457,2 |
438,1 |
158,7 |
628,6 |
24 |
34,9 |
134,000 |
|
20″ |
774,7 |
63,5 |
584,2 |
587,4 |
508,0 |
488,9 |
161,9 |
685,8 |
24 |
34,9 |
171,000 |
|
22″ |
838,2 |
66,7 |
641,2 |
641,2 |
558,8 |
539,7 |
165,1 |
742,9 |
24 |
41,3 |
195,000 |
|
24″ |
914,4 |
69,8 |
692,1 |
701,7 |
609,6 |
590,5 |
168,3 |
812,8 |
24 |
41,3 |
238,000 |
|
* |
The data “J” corresponds to the STD schedule |
||||||||||
|
ANS I /ASME / ASA B16.5 600lb/sq.in. Flanges WN-RF |
||||||||||
|
ø |
D |
b |
g |
m |
J |
h |
k |
Holes |
l |
Kg. |
|
1/2″ |
95,2 |
14,3 |
34,9 |
38,1 |
22,3 |
22,2 |
66,7 |
4 |
15,9 |
0,800 |
|
3/4″ |
117,5 |
15,9 |
42,9 |
47,6 |
27,7 |
25,4 |
82,5 |
4 |
19,0 |
1,400 |
|
1″ |
123,8 |
17,5 |
50,8 |
54,0 |
34,5 |
27,0 |
88,9 |
4 |
19,0 |
1,600 |
|
1 1/4″ |
133,3 |
20,6 |
63,5 |
63,5 |
43,2 |
28,6 |
98,4 |
4 |
19,0 |
2,100 |
|
1 1/2″ |
155,6 |
22,2 |
73,0 |
69,8 |
49,5 |
31,7 |
114,3 |
4 |
22,2 |
3,100 |
|
2″ |
165,1 |
25,4 |
92,1 |
84,1 |
62,0 |
36,5 |
127,0 |
8 |
19,0 |
3,700 |
|
2 1/2″ |
190,5 |
28,6 |
104,8 |
100,0 |
74,7 |
41,3 |
149,2 |
8 |
22,2 |
5,400 |
|
3″ |
209,5 |
31,7 |
127,0 |
117,5 |
90,7 |
46,0 |
168,3 |
8 |
22,2 |
7,300 |
|
3 1/2″ |
228,6 |
34,9 |
139,7 |
133,3 |
103,4 |
49,2 |
184,1 |
8 |
25,4 |
8,900 |
|
4″ |
273,0 |
38,1 |
157,2 |
152,4 |
116,1 |
54,0 |
215,9 |
8 |
25,4 |
11,800 |
|
5″ |
330,2 |
44,4 |
185,7 |
188,9 |
143,8 |
60,3 |
266,7 |
8 |
28,6 |
24,500 |
|
6″ |
355,6 |
47,6 |
215,9 |
222,2 |
170,7 |
66,7 |
292,1 |
12 |
28,6 |
29,500 |
|
8″ |
419,1 |
55,6 |
269,9 |
273,0 |
221,5 |
76,2 |
349,2 |
12 |
31,7 |
43,000 |
|
10″ |
508,0 |
63,5 |
323,8 |
342,8 |
276,3 |
85,7 |
431,8 |
16 |
34,9 |
70,000 |
|
12″ |
558,8 |
66,7 |
381,0 |
400,0 |
327,1 |
92,1 |
488,9 |
20 |
34,9 |
86,000 |
|
14″ |
603,2 |
69,8 |
412,7 |
431,8 |
359,1 |
93,7 |
527,0 |
20 |
38,1 |
100,000 |
|
16″ |
685,8 |
76,2 |
469,9 |
495,3 |
410,5 |
106,4 |
603,2 |
20 |
41,3 |
142,000 |
|
18″ |
742,9 |
82,5 |
533,4 |
546,1 |
461,8 |
117,5 |
654,0 |
20 |
44,4 |
175,000 |
|
20″ |
812,8 |
88,9 |
584,2 |
609,6 |
513,1 |
127,0 |
723,9 |
24 |
44,4 |
232,000 |
|
22″ |
869,9 |
95,2 |
641,2 |
666,7 |
564,4 |
133,3 |
777,9 |
24 |
47,6 |
292,000 |
|
24″ |
939,8 |
101,6 |
692,1 |
717,5 |
615,9 |
139,7 |
838,2 |
24 |
50,8 |
330,000 |
Jinay Metals, one of the leading suppliers of Weld Neck Flanges in Dubai, UAE, offers a wide selection of high-quality flanges suitable for various industrial applications. With an extensive inventory, reliable sourcing, and a strong commitment to quality, service, and timely delivery, Jinay Metals has established itself as a trusted name for premium stainless steel products across the UAE.
Yes, we provide Weld Neck Flanges to match your exact project requirements. At Jinay Metals, our team is dedicated to delivering tailored flanges solutions that ensure precision and reliability. For more information or personalized assistance, reach out to us at sales@jinaymetals.ae.
Weld neck flanges are commonly used in piping systems that operate under high pressure and high temperature, where combinations must be strong and leakproof. Industries that would be a good candidate for using weld neck flanges include oil and gas, petrochemical, power generation, marine, and chemical processing. A weld neck flange is purposely designed with a long tapered hub for ensuring excellent reinforcement and stress distribution that allows the weld neck flange to withstand fatigue and prevent cracking. Common applications include pipelines, refineries, pressure vessels, and heat exchangers in all industries. Due to their high durability, weld integrity, and the ability to perform in extreme conditions while maintaining reliability and safety, weld neck flanges are a preferred choice for critical operations.
