Weld Neck Flanges Manufacturer in India.

Weld Neck Flange Manufacturer, Stockist, Supplier and Exporter in Mumbai, India – Unifit Metalloys Inc.

Unifit Metalloys Inc. is one of the prime Weld Neck Flange Supplier in Mumbai, India. We are the first company in India to supply fabricated and large size ASME/ANSI B16.5 SS Weld Neck Flanges to our national and international clients. At our manufacturing unit, Carbon Steel Weld Neck Flanges and all other products are customized according to the requirement of our clients.

Every year we tend to supply 300+ containers of Stainless Steel Weld Neck Flanges all over the world. We have highly experienced and certified technical specialists that oversee the end-to-end process throughout the manufacturing cycle and guarantee that quality is maintained at all times.


ASME B16.5 Weld Neck Flange, Carbon Steel A105 Weld Neck Flanges, Stainless Steel Weld Neck Flange, Api 6A Weld Neck Flange, Weld Neck Flanges Manufacturers in India

Weld Neck Flanges manufacturers in India are appropriate for use in hostile situations because they can endure temperature, pressure, and other sources of stress. Weld Neck Flanges ASME B16.5 Class 300 are chemically and oxidation resistant (corrosion resistant), and have high stress-rupture efficacy and low creep rates at high strains at temperatures following appropriate heat treatment.

A Weld Neck Flange is available in two styles. With the pipe, the standard Api 6A Weld Neck Flange is used. Shipbuilding, power generating, petrochemical plants, oil refineries, waste water treatment plants, paper mills, pharmaceutical plants, and turnkey projects are among the industries for which we provide weld neck pipe flanges manufactured at our facility.

A Weld Neck Flange (BLRF) is a plate used to cover or close the pipe’s end. A Weld Neck Flange Joint is a pipe connection with flanges on the connecting sections that allow the parts to be bolted together. As a Weld Neck Flange manufacturer in India we offer these Flanges in various materials like these Carbon Steel A105 Weld Neck Flange, Super Duplex Blind Flange, Alloy 20 Blind Flange, Nickel Blind Flange, Copper Blind Flange, Duplex Blind Flange, etc.

Weld Neck Flange Specification

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.
Special Alloy Weld Neck Flanges: Carbon Steel, Duplex, Super Duplex, Nickel Alloys
Flange Face Type: Flat 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

Weld Neck Flange Material

High quality Weld Neck Flange manufacturers in India offer these Carbon Steel Weld Neck Flange in DIN, EN, BS, ISO, JIS or ANSI standard.

Stainless Steel Weld Neck Flange ASTM/ASME A/SA182 F304, F304L, F316, F316L, ASTM/ASME A/SA351 CF8, CF3, CF8M, CF3M, DIN 1.4301, DIN 1.4306, DIN 1.4401, DIN 1.4404, DIN 1.4308, DIN 1.4408, DIN 1.4306, DIN 1.4409
Carbon Steel Weld Neck Flange ASTM/ASME A/SA105 A/SA105N & A/SA216-WCB, DIN 1.0402, DIN 1.0460, DIN 1.0619, Die Steel, ASTM A105 / ASME SA105, A105N, ASTM A350 LF2 / ASME SA350, High Yield CS ASTM A694 / A694 (F52 F56 F60 F65 F70 F80)
Alloy Steel Weld Neck Flange ASTM A182 / ASME SA182 F5, F9, F11, F12, F22, F91
Copper Weld Neck Flange 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
Titanium Weld Neck Flange ASTM B381 / ASME SB381, Titanium Gr. 1, Titanium Gr. 2, Titanium Gr. 4, Titanium Gr. 5, Titanium Gr. 7
ASTM R50250/GR.1 | R50400/GR.2 | R50550/GR.3 | R50700/GR.4 | GR.6 |R52400/GR.7 | R53400/GR.12 | R56320/GR.9 |R56400/GR.5
Copper Nickel Weld Neck Flange ASTM / ASME SB 61 / 62 / 151 / 152, Copper Nickel 90/10 (C70600 ), Cupro Nickel 70/30 (C71500), UNS C71640
Brass Weld Neck Flange 3602 / 2604 / H59 / H62 / etc.
Nickel Weld Neck Flange ASTM B564 / ASME SB564, Nickel 200, Nickel 201, Nickel 205, Nickel 205LC
Inconel Weld Neck Flange ASTM B564 / ASME SB564, Inconel 600, 601, 625, 718, 783, 690, x750 Weld Neck Flange
Hastelloy Weld Neck Flange ASTM B564 / ASME SB564, Hastelloy C276 (UNS N10276), C22 (UNS N06022), C4, C2000, B2, B3, X Flanges
Monel Weld Neck Flange ASTM B564 / ASME SB564, Monel 400 (UNS No. N04400), Monel 500 (UNS No. N05500)
Alloy 20 Weld Neck Flange ASTM B462 / ASME SB462, Carpenter® 20 Alloy, Alloy 20Cb-3
Aluminium Weld Neck Flange 5052 /6061/ 6063 / 2017 / 7075 / etc.
Duplex Weld Neck Flange S31803 / S32205 A182 Gr F51 / F52 / F53 / F54 / F55 / F57 / F59 / F60 / F61
Super Duplex Weld Neck Flange S32750 / S32760 A182 Gr F51 / F52 / F53 / F54 / F55 / F57 / F59 / F60 / F61
Incoloy Weld Neck Flange ASTM B564 / ASME SB564, Incoloy 800, 800H, 800HT (UNS N08800), 825 (UNS N08825), 925 Flanges
254 Smo Weld Neck Flange ASTM A182 / ASME SA182, SMO 254/6Mo, UNS S31254, DIN 1.4547
Nimonic Weld Neck Flange Nimonic 75, Nimonic 80A, Nimonic 90

Weld Neck Flange Production Range


Weld Neck Flange Manufacturer


Weld Neck Flange Dealer

Dimensions of Weld Neck Flange

Outside Diameter
≤ 24 = 1.6 mm | > 24 = ± 3.2 mm
Inside Diameter
≤ 10 = ± 0.8 mm | ≥ 12 = + 1.6 mm / – 0 mm
Diameter of Contact Face
1.6 mm Raised Face = ± 0.8 mm
6.35 mm Raised Face, Tongue & Groove / Male-Female = ± 0.4 mm
Outside Diameter of Hub
≤ 12 = + 2.4 mm / – 1.6 mm | ≥ 14 = ± 3.2 mm
Diameter of Counterbore
Same as for Inside Diameter
Bolt Circle = 1.6 mm | Bolt Hole Spacing = ± 0.8 mm
Eccentricity of Bolt Circle with Respect to Facing
≤ 2½ = 0.8 mm max. | ≥ 3 = 1.6 mm max.
≤ 18 = + 3.2 mm / – 0 | ≥ 20 = + 4.8 mm / – 0
Length thru Hub
≤ 18 = + 3.2 mm / – 0.8 mm | ≥ 20 = + 4.8 mm / – 1.6 mm

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Supplier of Weld Neck Flanges in the following cities

Unifit Metalloys Inc. is one of the topmost Supplier of Weld Neck Flanges in the following Cities

Moradabad Mumbai Chennai Hyderabad Kolkata Thane
New Delhi Gandhinagar Jaipur Surat Salem Ahmedabad
Bhiwandi Tiruppur Channapatna Jamnagar Bhubaneswar Rajahmundry
Thiruvananthapuram Vijaywada Firozabad Bokaro Steel City Rajkot Bharuch
Panna Raipur Cochin Ludhiana Panipat Durgapur
Peenya Pimpri-Chinchwad Sivakasi Kharagpur Nashik Bareilly
Varanasi Haldia Rourkela Hosdurg Bengaluru Indore
Visakhapatnam Trivandrum Pithampur Dibrugarh Angul Gwalior
Coimbatore Kannur Nagpur Vadodara Rudrapur Noida
Agra Bhagalpur Jamshedpur Bhilai Lucknow Kanpur
Pune Bhopal Sri City Bareilly Bangalore Pithampur

Exporter of Weld Neck Flanges in the following Countries

Unifit Metalloys Inc. is one of the topmost Exporter of Weld Neck Flanges in Nigeria, Israel, Saudi Arabia, Qatar, Bahrain, Jordan, Mexico, Indonesia, Singapore, Thailand, and Malaysia.

Nigeria Israel Saudi Arabia Qatar Bahrain
Jordan Mexico Indonesia Singapore Thailand
Malaysia France Canada Venezuela United Kingdom
United States South Africa Greece Bangladesh Turkey
Croatia Sri Lanka Australia Brazil Germany
France Italy South Korea Poland Belgium
Jordan Denmark Thailand Kuwait Oman