Katariya Steel Distributors is a well-recognized manufacturer, exporter and supplier of Weld Neck Flanges. We manufacture our products with the finest quality raw materials that are available in the market. We are one of India's most renowned suppliers of Weld Neck Flanges, and we offer them at market-leading prices.
A Weld Neck Flange is called a tapered hub or high-hub flange. It is a kind of flange that can relocate stress to the pipes, ensuring a decrease in high-stress concentration at the bottom of the flange. There are two types of weld neck flange, one which can be used with pipes and the other which cannot be used with pipes but is to be used with a process plant.
The weld neck flange has a round fitting that extends beyond the rim of the circumference. These flanges are manufactured from forging and are actually welded to pipes. The rim has multiple holes which enable the flange to be attached to a bolted flange. These Weld neck flanges are suitable for pipes and are widely used in a number of applications. We make sure that all our products are tested several times to ensure they are of good quality, safety and durability. We verify our products before supplying them to our esteemed customers.
The bore of the weld neck flange matches the bore of the pipeline, reducing turbulence and erosion. Weld neck flanges have amazing properties due to which they are widely used in diverse industries. They are highly in demand where conditions are severe and critical which is high pressure, wide fluctuations in temperatures, fluids that are volatile and hazardous and temperatures in sub-zero ranges. These weld neck flanges are used in piping systems, chemical industry, petrochemical industry, food industry, waterworks, heat exchangers, condensers, marine applications and many more.
Description of Steel Welding Neck Flange
Type: | WN Forged Flange |
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Material: |
ASTM A105/A105N ASTM A182 : F304, F304L, F316, F316L, F317L, F310, F321, F321H, F347, F347H, F44, F1, F5,F9, F11, F22, F91, F51, F53, F55, F904L ASTM A350 : LF-1, LF-2, LF-3 ASTM A694 : F42, F46, F48, F50, F52, F56, F60, F65, F70 ASTM B564 : C-276, C-22, B-2, C-4, INCONEL 600, 601, 625, 800, 800H, 825 ASTM B462 : Alloy 20 ASTM A516 : 60, 65, 70 ASTM B151/B171 : Alloy 90-10 (UNS C70600) & Alloy 70-30 (UNS C71500) |
Standard: | ANSI,JIS,DIN,BS,EN,GOST |
Size: | 1/2-60 inch (DN15-DN1500) |
Pressure: | ANSI class 150,300,600,1500,2500, DIN PN6,PN10,PN16,PN25,PN40,PN64,PN100,PN160 |
Packing: | No Fumigate or Fumigate Plywood/Wood Pallet or Case |
Surface Treatment: | Anti-rust Oil, Transparent/Yellow/Black Anti-rust Paint,Zinc,Hot dipped Galvanized. |
Usage: | Oil Field, Offshore, Water System, Shipbuilding, Natural Gas, Electric Power, Pipe Projects etc. |
SPECIFICATION FOR WELD NECK FLANGES
Dimensions | ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings |
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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. |
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 |
Flange Face Type | Flate Face (FF), Raised Face (RF) |
WELD NECK FLANGES Standards, Dimensions & Weight
Pipe Normal Diam. | O.D. Flange | Thk. Of Flange Min | Diameter of Raised Face | Diam. of Bolt Circle |
Diam. of Bolt Holes | Number of Bolts | Diam. of Bolts (inch) | KG | LB | |
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inch | dn | O | C | G | BC | BH | BN | BD | ||
1/2" | 15 | 89.00 | 11.20 | 35.10 | 60.50 | 15.80 | 4 | 1/2" | 0.5 | 1.1 |
3/4" | 20 | 98.50 | 12.70 | 42.90 | 69.90 | 15.80 | 4 | 1/2" | 0.8 | 1.8 |
1" | 25 | 108.00 | 14.20 | 50.80 | 79.30 | 15.80 | 4 | 1/2" | 0.9 | 2 |
1-1/4" | 32 | 117.50 | 15.70 | 63.50 | 88.90 | 15.80 | 4 | 1/2" | 1.3 | 2.9 |
1-1/2" | 40 | 127.00 | 17.50 | 73.20 | 98.60 | 15.80 | 4 | 1/2" | 1.6 | 3.5 |
2" | 50 | 152.50 | 19.10 | 91.90 | 120.70 | 19.10 | 4 | 5/8" | 2.6 | 5.7 |
2-1/2" | 65 | 178.00 | 22.40 | 104.60 | 139.70 | 19.10 | 4 | 5/8" | 4.1 | 9 |
3" | 80 | 190.50 | 23.90 | 127.00 | 152.40 | 19.10 | 4 | 5/8" | 5..1 | 11.2 |
3-1/2" | 90 | 216.00 | 23.90 | 139.70 | 177.80 | 19.10 | 8 | 5/8" | 6.5 | 14.3 |
4" | 100 | 228.50 | 23.90 | 157.20 | 190.50 | 19.10 | 8 | 5/8" | 7.5 | 16.5 |
5" | 125 | 254.00 | 23.90 | 185.70 | 215.90 | 22.40 | 8 | 3/4" | 9.2 | 20.3 |
6" | 150 | 279.50 | 25.40 | 215.90 | 241.30 | 22.40 | 8 | 3/4" | 11.8 | 26 |
8" | 200 | 343.00 | 28.40 | 269.70 | 298.50 | 22.40 | 8 | 3/4" | 20.4 | 45 |
10" | 250 | 406.50 | 30.20 | 323.90 | 362.00 | 25.40 | 12 | 7/8" | 31 | 68 |
12" | 300 | 482.50 | 31.80 | 381.00 | 431.80 | 25.40 | 12 | 7/8" | 47 | 103 |
14" | 350 | 533.50 | 35.10 | 412.80 | 476.30 | 28.50 | 12 | 1" | 60 | 132 |
16" | 400 | 597.00 | 36.60 | 469.90 | 539.80 | 28.50 | 16 | 1" | 81 | 178 |
18" | 450 | 635.00 | 39.60 | 533.40 | 577.90 | 31.80 | 16 | 1 1/8" | 93 | 205 |
20" | 500 | 698.50 | 42.90 | 584.20 | 635.00 | 31.80 | 20 | 1 1/8" | 127 | 280 |
24" | 600 | 813.00 | 47.80 | 692.20 | 749.30 | 35.10 | 20 | 1 1/4" | 190 | 419 |
GRADES FOR WELD NECK FLANGES
Material | ASTM A105/A105N ASTM A182 : F304, F304L, F316, F316L, F317L, F310, F321, F321H, F347, F347H, F44, F1, F5,F9, F11, F22, F91, F51, F53, F55, F904L ASTM A350 : LF-1, LF-2, LF-3 ASTM A694 : F42, F46, F48, F50, F52, F56, F60, F65, F70 ASTM B564 : C-276, C-22, B-2, C-4, INCONEL 600, 601, 625, 800, 800H, 825 ASTM B462 : Alloy 20 ASTM A516 : 60, 65, 70 ASTM B151/B171 : Alloy 90-10 (UNS C70600) & Alloy 70-30 (UNS C71500) |
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Sizes for Blind Flange 150# | 1/2" NB to 24" NB (ASME 16.5) & A/B/C SERIES and Above 26" NB to 60" NB (B 16.47) |
Class for Blind Flange 150# | 150# |
Domestic Supply Of Weld Neck Flanges
- Thane
- Nagpur
- Hyderabad
- Secunderabad
- New Delhi
- Jamshedpur
- Kanpur
- Visakhapatnam
- Pune
- Ludhiana
- Kolkata
- Surat
- Noida
- Ahmedabad
- Bhopal
- Thiruvananthapuram
- Indore
- Ranchi
- Jaipur
- Howrah
- Faridabad
- Mumbai
- Chandigarh
- Pimpri-Chinchwad
- Chennai
- Rajkot
- Haryana
- Gurgaon
- Navi Mumbai
- Ernakulam
- Bengaluru
- Nashik
International Supply Of Weld Neck Flanges
- India
- Saudi Arabia
- Germany
- Canada
- Turkey
- Philippines
- Australia
- Brazil
- Spain
- Taiwan
- Ukraine
- Angola
- Tobago
- Sri Lanka
- Japan
- Kuwait
- Italy
- Iran
- Morocco
- Egypt
- Qatar
- France
- Hong Kong
- Nigeria
- Poland
- Colombia
- Greece
- Myanmar
- Russia
- Singapore
- China
- Thailand
- Costa Rica
- Vietnam
- Portugal
- South Africa
- Netherlands
- Bangladesh
- Romania
- Norway
- Czechia
- Venezuela
- United States
- Malaysia
- UK
- South Korea
- Kazakhstan
- Oman
- Mexico
- Jordan
- Indonesia
- Iraq
- Cyprus
- Chile
- Belgium