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Threaded Flanges

Sotco India is acknowledged as a manufacturer, exporter & suppliers of Threaded Flange & Stainless steel Flanges (Gr. 304, 304L, 316, 316L) available in a variety or grades, materials, and finishes, in metric and inch sizes. These Threaded Flange are manufacture in different Material of Flanges like SORF Flanges, Carbon Steel Threaded Flanges, Stainless Steel Threaded Flanges, Alloy Steel Threaded Flanges, Duplex Steel Threaded Flanges, Inconel Threaded Flanges, Monel Threaded Flanges, Hastelloy Threaded Flanges, Copper Nickel Threaded Flanges in India & Asia, conform to Slip On specifications.

Threaded flanges are widely used in low pressure piping systems, as no welding is involved while connecting the flanges to pipes or other equipment. However, the flange may be welded around the joint after assembly, but it is not considered a satisfactory method of increasing its applications. Threaded flanges are also known as screwed flanges and are similar to slip-on flanges, but the bore is threaded to enable assembling without welding. Threaded pipe flanges are usually used with pipes that have external threads.

Threaded Flange, Threaded Forged Flanges, Screwed Flanges Production Range
Size: 1/2″ (15 NB) to 48″ (1200NB)

Standards: ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings

Pressure Ratings: Class 150, Class 300, Class 400, Class 600, Class 900, Class1500, Class 2500 | PN6, PN10, PN16, PN25, PN40, PN64 etc.

Carbon Steel Threaded Flanges: ASTM A105/A105N, A350 LF1, LF2 CL1/CL2, LF3 CL1/CL2, A694 F42, F46, F48, F50, F52, F56, F60, F65, F70, A516.60, 65, 70 (Spectacle Blind Flange, Spacer Ring/Spade Flange), Steel RST37.2, C22.8

Stainless Steel Threaded Flanges: ASTM A182 F202, F304/304L/304H, F316/316L, F316H, F316TI, F310, F321, F904L


Alloy Steel Threaded Flanges: ASTM A182 F1, F5, F9, F11, F22, F91

Special Alloy Threaded Flanges: Duplex, Super Duplex, Nickel Alloys

Flange Face Type: Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)

Coating/Surface Treatment: Anti-rust Paint, Oil Black Paint, Yellow Transparent, Zinc Plated, Cold and Hot Dip Galvanized

Value Added Services: CNC Machining, Customised Flanges

Diameter : 1/2″ to 24″


Sotco India is specialized in manufacturing and supplying of Stainless Steel Flanges , Pipe Fitting, Forged Fittings, Butt weld fittings, Flanges in Stainless steel, alloy Steel & carbon Steel since 1991, we manufacture wide range of Stainless Steel Flanges such as SS Slip On Flange, SS Welding Neck Flange, SS Blind Flange, SS Socket Weld Flanges, SS Plate Flange, SS Collar Flange, Stainless Steel Threaded Flange etc. as per International standard like ASME/ASTM/API, we are supplying & exporting Stainless Steel Flanges in seamless & welded both forms to more than 60 countries for over 2 decades, we have our dealers & distributors in Nigeria, Australia, Malaysia, Egypt, South Africa, Tanzania, Kenya, Mozambique, Angola, Gabon Germany, Turkey, France, United Kingdom, Italy, Netherlands, Iran , Iraq , Saudi Arabia, United Arab Emirates , Iisrael, Jordan, Oman, Kuwait, Qatar, Bahrain, Bangladesh, China, Indonesia, South Korea, Pakistan, Philippines, Singapore, Sri Lanka, Thailand, Vietnam, Brazil, Colombia, Argentina & United States of America, Sotco India is the only company in INDIA which is approved Manufacturer & supplier of Stainless Steel Flanges in 300 top companies worldwide. Few of them are ORPIC, NIORDC, Saudi Aramco, SABIC, PIDMCO, GASCO, KNPC, Indian Oil, BPCL, HPCL, NTPC, BARC & Indian Navy, Sotco India is ISO 9001:2008, ISO 14001, OHSAS 18001 Certified Company since 2006 & PED approved Manufacturer since 2008, Sotco India is India's 6th largest Manufacturer, supplier & exporter of Stainless Steel Flanges .

Sotco India is manufacturing & exporting pipe flange from 1/2” thru 200”, 150 lbs to 3000 lbs including carbon Steel flanges , stainless Steel flanges and alloy Steel flanges according to ANSI , API , MSS , AWWA , DIN , JIS , BS and GB for the world market. We are experienced & specialized in manufacturing special ring flanges and other forgings as per drawing provided by our clients.

We supply ASME Code and Non Code Industrial flanges for the Petrochemical, Chemical & Waterworks industries. check our price before buying ANSI, API, AWWA pipe flanges in carbon Steel flanges , stainless Steel flanges , alloy Steel flanges and chrome steel flanges. Weld Neck flanges , flanges Slip on flanges , Blind flanges , Threaded flanges , socket weld flanges , Lap Joint flanges , Orifice Flanges in sizes 1/2" to 198" .


Specialized Products

   Duplex and Super Duplex Stockist

   Nickel Alloys Stockist

   Marine Products Suppliers

   F51, F53, F55 Materials

   1.4462 / 1.4410 Products

   Stainless Steel Elbow

   Stainless Steel Tee

   Duplex Steel Elbow

   Duplex Steel Tee

   Butt weld pipe fittings

   Socket weld Fittings

   Weldolet, Sockolet, Olets

   Stockholder of Stainless Steel

   Stockholder of Nickel Alloys

   Stockholder of Duplex alloys

   Stainless Steel Pipe Price

   BS Flanges

   Socket weld Flange

   Reducing Flange

   SWRF-Socket Weld Raised Face Flanges

   JIS Standard Flange

   DIN Standard Flange