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ToggleRiddhi Siddhi Metal Impex is one of the leading Screwed/Threaded Flanges Manufacturers in Mumbai, India. The Stainless Steel MSS SP44 has been designed under national and international industry rules using high-grade raw materials and advanced technology. Our ANSI B16.5 Screwed/Threaded Flanges and other products are subjected to various quality checks, and then goes for packaging. We have a ready stock of Screwed/Threaded Flanges of different sizes and shapes per the customers’ requirements. These metals are used in Industrial Sectors like Building & Construction Industry, petrochemical, Oil & Gas Industry, and chemical industries. Moreover, Screwed/Threaded Flanges can be tailored per our client’s requirements.

Screwed/Threaded Flanges are machined with solid forgings. We are also known as one of the Largest Suppliers of high-quality Stainless Steel Threaded Flanges, Alloy Steel Screwed Flanges, Nickel Alloy Screwed Flanges, and Duplex Steel Threaded Flanges, and many more. Screwed/Threaded Flanges are defined as one of the essential parts of the Pipe Fitting Industry. We are also known as one of the Largest Suppliers of Long Weld Neck Flanges.
| ASME B16.5 Threaded Flange/ Screwed Flange Size Chart | 1/2″ (15 NB) to 48″ (1200NB) DN10~DN5000 | 
|---|---|
| Threaded Flange/ Screwed Flange Standards | ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, ANSI Threaded Flange/ Screwed Flange, ASME Threaded Flange/ Screwed Flange, BS Threaded Flange/ Screwed Flange, DIN Threaded Flange/ Screwed Flange, EN Threaded Flange/ Screwed Flange, 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 | 
| Threaded Flange/ Screwed Flange Pressure Rating ANSI | Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS Threaded Flange/ Screwed Flange | 
| Threaded Flange/ Screwed Flange Pressure Calculation in DIN | 6Bar 10Bar 16Bar 25Bar 40Bar / PN6 PN10 PN16 PN25 PN40, PN64 Threaded Flange/ Screwed Flange | 
| JIS threaded Flanges pn16 | 5K, 10 K, 16 K 20 K, 30 K, 40 K, 63 K Threaded Flange/ Screwed Flange | 
| UNI threaded reducing Flanges | 6Bar 10Bar 16Bar 25Bar 40Bar Threaded Flange/ Screwed Flange | 
| EN npt threaded Flanges | 6Bar 10Bar 16Bar 25Bar 40Bar Threaded Flange/ Screwed Flange | 
| Coating | Oil Black Paint, Anti-rust Paint, Zinc Plated, Yellow Transparent, Cold and Hot Dip Galvanized Threaded Flange/ Screwed Flange | 
| Most common types of Threaded Flange/ Screwed 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 | 
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| 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 threaded flange din 2566 | As per your drawingAS, 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 ultrasonic flaw detector, Magnetic particle detector | 
| Equipment weld on threaded flange | Press machine, Bending machine, Pushing Machine, electric bevelling machine, Sand-blasting machine, etc | 
| Origin Of reducing threaded flange | Indian / West Europe / Japan / USA / Korean | 
| Manufacturer of | ANSI DIN, GOST, JIS, UNI, BS, AS2129, AWWA, EN, SABS, NFE etc. Threaded Flange/ Screwed 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 
 | 
| Threaded Flange/ Screwed Flange Uses & application | 
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| Export to A105 threaded flange | Ireland, Singapore, Indonesia, Ukraine, Saudi Arabia, Spain, Canada, USA, Brazil, Thailand, Korea, Iran, India, Egypt, Oman, Dubai, Peru, etc | 
| Material Test Certificates (MTC) as per EN 10204 3.1 and EN 10204 3.2, Test Certificates certifying NACE MR0103, NACE MR0175 | |
| ASME B16.5 NPT Threaded Flanges Manufacturer In India | |
Riddhi Siddhi Metal Impex is India’s most trusted Screwed/Threaded Flanges Supplier. Our High-quality, sensible customer service, and in-house processing capabilities have made us one of the best emerging and leading suppliers in India. We are an ISO 9001:2009 certified company that has been in existence since 2003. ASTM | ASME | ANSI Screwed/Threaded Flanges at Riddhi Siddhi Metal Impex In bears toughness and hardness check before provision it to our purchasers.
| Pipe Size(NPS) | Outside Diameter of FlangeA | Diameter of Raised FaceB | Thickness of FlangeC | Diameter of Hub at BaseJ | Length of HubL | Minimum Thread LengthN | Number of Bolt Holes | Approx. Weight(Lbs.) | 
|---|---|---|---|---|---|---|---|---|
| 1/2 | 3 1/2 | 1 3/8 | 7/16 | 1 3/16 | 5/8 | 5/8 | 4 | 2 | 
| 3/4 | 3 7/8 | 1 11/16 | 1/2 | 1 1/2 | 5/8 | 5/8 | 4 | 2 | 
| 1 | 4 1/4 | 2 | 9/16 | 1 15/16 | 11/16 | 11/16 | 4 | 2 | 
| 1 1/4 | 4 5/8 | 2 1/2 | 5/8 | 2 5/16 | 13/16 | 13/16 | 4 | 3 | 
| 1 1/2 | 5 | 2 7/8 | 11/16 | 2 9/16 | 7/8 | 7/8 | 4 | 3 | 
| 2 | 6 | 3 5/8 | 3/4 | 3 7/16 | 1 | 1 | 4 | 5 | 
| 2 1/2 | 7 | 4 1/8 | 7/8 | 3 9/16 | 1 1/8 | 1 1/8 | 4 | 7 | 
| 3 | 7 1/2 | 5 | 15/16 | 4 1/4 | 1 3/16 | 1 3/16 | 4 | 8 | 
| 3 1/2 | 8 1/2 | 5 1/2 | 15/16 | 4 13/16 | 1 1/4 | 1 1/4 | 8 | 11 | 
| 4 | 9 | 6 3/16 | 15/16 | 5 5/16 | 1 5/16 | 1 5/16 | 8 | 13 | 
| 5 | 10 | 7 5/16 | 15/16 | 6 7/16 | 1 7/16 | 1 7/16 | 8 | 15 | 
| 6 | 11 | 8 1/2 | 1 | 7 9/16 | 1 9/16 | 1 9/16 | 8 | 19 | 
| 8 | 13 1/2 | 10 5/8 | 1 1/8 | 9 11/16 | 1 3/4 | 1 3/4 | 8 | 30 | 
| 10 | 16 | 12 3/4 | 1 3/16 | 12 | 1 15/16 | 1 15/16 | 12 | 43 | 
| 12 | 19 | 15 | 1 1/4 | 14 3/8 | 2 3/16 | 2 3/16 | 12 | 64 | 
| 14 | 21 | 16 1/4 | 1 3/8 | 15 3/4 | 2 1/4 | 2 1/4 | 12 | 85 | 
| 16 | 23 1/2 | 18 1/2 | 1 7/16 | 18 | 2 1/2 | 2 1/2 | 16 | 93 | 
| 18 | 25 | 21 | 1 9/16 | 19 7/8 | 2 11/16 | 2 11/16 | 16 | 120 | 
| 20 | 27 1/2 | 23 | 1 11/16 | 22 | 2 7/8 | 2 7/8 | 20 | 155 | 
| 22 | 29 1/2 | 25 1/4 | 1 13/16 | 24 | 3 1/8 | 3 1/8 | 20 | 159 | 
| 24 | 32 | 27 1/4 | 1 7/8 | 26 1/8 | 3 1/4 | 3 1/4 | 20 | 210 | 
| Pipe Normal Diam. | O.D. Flange | Thk. Of Flange Min | Diam. of Hub | Diameter of Raised Face | Length Hub.Y | Thread Length | Diam. of Bolt Circle | Diam. of Bolt Holes | Number of Bolts | Diam. of Bolts (inch) | KG | LB | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| inch | dn | O | C | X | G | Y | T | BC | BH | BN | BD | ||
| 1/2″ | 15 | 89.00 | 11.20 | 30.20 | 35.10 | 15.70 | 15.70 | 60.50 | 15.80 | 4 | 1/2″ | 0.4 | 0.9 | 
| 3/4″ | 20 | 98.50 | 12.70 | 38.10 | 42.90 | 15.70 | 15.70 | 69.90 | 15.80 | 4 | 1/2″ | 0.7 | 1.5 | 
| 1″ | 25 | 108.00 | 14.20 | 49.30 | 50.80 | 17.50 | 17.50 | 79.30 | 15.80 | 4 | 1/2″ | 0.8 | 1.8 | 
| 1-1/4″ | 32 | 117.50 | 15.70 | 58.70 | 63.50 | 20.60 | 20.60 | 88.90 | 15.80 | 4 | 1/2″ | 1.2 | 2.6 | 
| 1-1/2″ | 40 | 127.00 | 17.50 | 65.00 | 73.20 | 22.40 | 22.40 | 98.60 | 15.80 | 4 | 1/2″ | 1.5 | 3.3 | 
| 2″ | 50 | 152.50 | 19.10 | 77.70 | 91.90 | 25.40 | 25.40 | 120.70 | 19.10 | 4 | 5/8″ | 2.3 | 5.1 | 
| 2-1/2″ | 65 | 178.00 | 22.40 | 90.40 | 104.60 | 28.40 | 28.40 | 139.70 | 19.10 | 4 | 5/8″ | 3.7 | 8.1 | 
| 3″ | 80 | 190.50 | 23.90 | 108.00 | 127.00 | 30.20 | 30.20 | 152.40 | 19.10 | 4 | 5/8″ | 4.1 | 9 | 
| 3-1/2″ | 90 | 216.00 | 23.90 | 122.20 | 139.70 | 31.80 | 31.80 | 177.80 | 19.10 | 8 | 5/8″ | 5.1 | 11.2 | 
| 4″ | 100 | 228.50 | 23.90 | 134.90 | 157.20 | 33.30 | 33.30 | 190.50 | 19.10 | 8 | 5/8″ | 5.9 | 13 | 
| 5″ | 125 | 254.00 | 23.90 | 163.60 | 185.70 | 36.60 | 36.60 | 215.90 | 22.40 | 8 | 3/4″ | 7 | 15.4 | 
| 6″ | 150 | 279.50 | 25.40 | 192.00 | 215.90 | 39.60 | 39.60 | 241.30 | 22.40 | 8 | 3/4″ | 8.4 | 18.5 | 
| 8″ | 200 | 343.00 | 28.40 | 246.10 | 269.70 | 44.50 | 44.50 | 298.50 | 22.40 | 8 | 3/4″ | 13 | 28.6 | 
| 10″ | 250 | 406.50 | 30.20 | 304.80 | 323.90 | 49.30 | 49.30 | 362.00 | 25.40 | 12 | 7/8″ | 18 | 39.5 | 
| 12″ | 300 | 482.50 | 31.80 | 365.30 | 381.00 | 55.60 | 55.60 | 431.80 | 25.40 | 12 | 7/8″ | 29 | 64 | 
| 14″ | 350 | 533.50 | 35.10 | 400.10 | 412.80 | 57.20 | 57.20 | 476.30 | 28.50 | 12 | 1″ | 39 | 86 | 
| 16″ | 400 | 597.00 | 36.60 | 457.20 | 469.90 | 63.50 | 63.50 | 539.80 | 28.50 | 16 | 1″ | 47 | 103 | 
| 18″ | 450 | 635.00 | 39.60 | 505.00 | 533.40 | 68.30 | 68.30 | 577.90 | 31.80 | 16 | 1 1/8″ | 57 | 126 | 
| 20″ | 500 | 698.50 | 42.90 | 558.80 | 584.20 | 73.20 | 73.20 | 635.00 | 31.80 | 20 | 1 1/8″ | 76 | 167 | 
| 24″ | 600 | 813.00 | 47.80 | 663.40 | 692.20 | 82.60 | 82.60 | 749.30 | 35.10 | 20 | 1 1/4″ | 97 | 214 | 
We regularly supply this product to different cities in India. We have a huge clientele covering more than 55 cities in India and 33 countries worldwide. We are known for Socket Weld Flange Supplier and Exporters.
| Product supplied | City | 
| Screwed/Threaded Flanges for Automobile Industry | Mumbai, Maharashtra | 
| ARAMCO Flanges supply | Hyderabad, Telangana | 
| Stainless Steel Flanges supply for Water Supply System | Banglore, Karnataka | 
| Flanges for the Chemical industry | Surat, Gujarat | 
Screwed/Threaded Flanges’ dependability and performance have created Riddhi Siddhi Metal Impex leading suppliers, dealers, manufacturers, and exporters of Stainless Steel Screwed/Threaded Flanges in India. Each month we tend to supply/export Screwed/Threaded Flanges to Indian port around fifty-two containers to completely different customers. We are a Screwed/Threaded Flanges Supplier in Mumbai, Chennai, Surat, New Delhi, Bangalore, and more than 80+ other cities.
| The city we supply Types of Screwed/Threaded Flanges: | |||||
|---|---|---|---|---|---|
| Bengaluru | Mumbai | Chennai | Hyderabad | Kolkata | Pune | 
| New Delhi | Ahmedabad | Jaipur | Surat | Salem | Gandhinagar | 
| Bhiwandi | Tiruppur | Sivakasi | Jamnagar | Thiruvananthapuram | Rajahmundry | 
| Bhubaneswar | Vijaywada | Firozabad | Bokaro Steel City | Rajkot | Bharuch | 
| Panna | Raipur | Cochin | Ludhiana | Panipat | Durgapur | 
| Peenya | Pimpri-Chinchwad | Channapatna | Kharagpur | Nashik | Bareilly | 
| Varanasi | Haldia | Rourkela | Bangalore | Moradabad | Indore | 
| Visakhapatnam | Trivandrum | Pithampur | Dibrugarh | Angul | Gwalior | 
| Coimbatore | Kannur | Nagpur | Vadodara | Rudrapur | Noida | 
| Agra | Bhagalpur | Jamshedpur | Bhilai | Lucknow | Kanpur | 
| Thane | Bhopal | Sri City | Bareilly | Hosdurg | Pithampur | 
Riddhi Siddhi Metal Impex exports Screwed/Threaded Flanges to UAE, European countries, Africa, Asian countries, and other continents. We have shipments going to various countries every month. With the increasing clientele, we export 3 containers of Screwed/Threaded Flanges to new locations and ports Each month. We are India’s top Manufacturers and have been leading the market for the past few decades.
| Countries we supply and export Types of Screwed/Threaded Flanges worldwide: | ||||
|---|---|---|---|---|
| Saudi Arabia | Oman | Kuwait | Netherlands | Iran | 
| Bahrain | Qatar | UAE | Africa | China | 
| Nigeria | Mexico | Canada | Venezuela | United Kingdom | 
| United States | South Africa | Malaysia | Bangladesh | Turkey | 
| Singapore | Sri Lanka | Australia | Brazil | Germany | 
| France | Italy | South Korea | Poland | Belgium |