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Weld Neck Flanges Manufacturer

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ASME B16.5 Class 150 Flange, Pn40 Weld Neck Flanges Exporter, Weld Neck Raised Face Flanges Weight 150#, MSS SP-44 ASME B16.47 Weld Neck Flanges Manufacturer in India.

Unifit Metalloys Inc is one of the finest distinguished manufacturers and exporters of Weld Neck Flanges, which is a nickel-chromium alloy used for appliances that want corrosion and superior temperature resistance. Stainless Steel Weld Neck Flanges is a nickel-chromium alloy used for appliances that need resistance to corrosion and heat. Carbon Steel Weld Neck Flanges is an oxidation and corrosion resistant nickel alloy that is used together for its soaring strength and exceptional aqueous corrosion resistance. Super Duplex Steel Weld Neck Flanges is a nickel-chromium-molybdenum alloy intended to defy an extensive range of sternly corrosive situations, crevice and pitting corrosion. These Alloy Steel Weld Neck Flanges are nickel-iron-chromium alloys by means of having excellent strength and good resistance to oxidation, along with having carburization in soaring-temperature exposure.

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Din 2527 300# Weld Neck Flange, Nickel Alloy Raised Face Weld Neck Flanges, Class 2500 Weld Neck Flange, Weld Neck Flanges Din 2633, Weld Neck Flanges JIS 5k Supplier in Mumbai, India.

Weld Neck Flanges

Get a best quote for ANSI B16.11 Weld Neck Flanges from Leading Manufacturer, Buy Class 150/300/900/1500/2500 Weld Neck Flanges at Best Price in India.


However, Inconel Alloy Weld Neck Flanges is a nickel-iron-chromium alloy by means of having additions of copper and molybdenum. Monel Alloy Weld Neck Flanges is a nickel-molybdenum-chromium alloy by means of having remarkable corrosion resistance in relentless situations. Hastelloy Alloy Weld Neck Flanges is a resourceful nickel-chromium- molybdenum-tungsten alloy by means of having first-rate overall corrosion resistance than any other Ni-Cr-Mo alloys. Nickel Alloy Weld Neck Flanges is a nickel-base formed alloy by means of having an admirable resistance to hydrochloric acid at all temperatures and concentrations. These Titanium Alloy Weld Neck Flanges respectively can further be customized in terms of sizes and thicknesses as per specific requirements given by our esteemed clients.

Weld Neck Flanges Specification

ASME B16.5 ANSI B16.5 Class 150 Weld Neck Flanges Size Chart 1/2" (15 NB) to 48" (1200NB) DN10~DN5000
ANSI B16.5 Class 150 Weld Neck Flanges Standards ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, ASME Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, GOST Flange, ASME/ASME B16.5/16.36/16.47A/16.47B, MSS S44, ISO70051, JISB2220, BS1560-3.1, API7S-15, API7S-43, API605, EN1092
ANSI B16.5 Class 150 Weld Neck Flanges Pressure Rating ANSI Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS
ANSI B16.5 Class 150 Weld Neck Flanges Pressure Calculation in DIN 6Bar 10Bar 16Bar 25Bar 40Bar / PN6 PN10 PN16 PN25 PN40, PN64
JIS 5K, 10 K, 16 K 20 K, 30 K, 40 K, 63 K
UNI 6Bar 10Bar 16Bar 25Bar 40Bar
EN 6Bar 10Bar 16Bar 25Bar 40Bar
Coating Oil Black Paint, Anti-rust Paint, Zinc Plated, Yellow Transparent, Cold and Hot Dip Galvanized
Most common types of ANSI B16.5 Class 150 Weld Neck Flanges Forged / Threaded / Screwed / Plate
Test Certificates EN 10204/3.1B
Raw Materials Certificate
100% Radiography Test Report
Third Party Inspection Report, etc
Production technique
  • Forged, Heat treated and machined
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

ASME DIN, GOST, JIS, UNI, BS, AS2129, AWWA, EN, SABS, NFE etc.
ANSI B16.5 Class 150 Weld Neck Flanges: -BS Flange, EN Flange, API 6A Flanges, ASME Flanges, ASME Flanges, DIN Flanges, EN1092-1 Flanges, UNI Flanges, JIS/ KS Flanges, BS4504 Flanges, GB Flanges, AWWA C207 Flanges, GOST Flanges, PSI Flangse

  • B.S: BS4504 , BS3293, BS1560, BS10
  • AS 2129: Table D; Table E; Table H
  • ASME B16.5, ASME B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings
  • ASME : ASME B16.5, ASME B16.47(API605), MSS SP44, ASME B16.36, ASME B16.48
  • ASME B16.5, ASME B16.47, MSS SP44, ASME B16.36, ASME B16.48
  • American standard (ANSI)
  • German (DIN)
  • British standard (BS)
  • DIN: DIN 2527, DIN 2566, DIN 2573, DIN 2576, DIN 2641, DIN 2642, DIN 2655, DIN 2656, DIN 2627, DIN 2628, DIN 2629, DIN 2631, DIN 2632, DIN 2633, DIN 2634, DIN 2635, DIN 2636, DIN 2637, DIN 2638 ANSI B16.5 Class 150 Weld Neck Flanges
  • The other standard: AWWA C207; EN1092-1, GOST12820, JIS B2220; KS B1503, SABS1123; NFE29203; UNI2276
ANSI B16.5 Class 150 Weld Neck Flanges Uses & application
  • Bitumen upgraders.
  • Heavy oil refineries.
  • Nuclear power (mostly seamless).
  • Petrochemicals and acids.

ASTM A182 Weld Neck Flamges Material

Stainless Steel ANSI B16.5 Class 150 Weld Neck Flanges 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 ANSI B16.5 Class 150 Weld Neck Flanges 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 ANSI B16.5 Class 150 Weld Neck Flanges ASTM A182 / ASME SA182 F5, F9, F11, F12, F22, F91
Titanium ANSI B16.5 Class 150 Weld Neck Flanges 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 ANSI B16.5 Class 150 Weld Neck Flanges ASTM / ASME SB 61 / 62 / 151 / 152, Copper Nickel 90/10 (C70600 ), Cupro Nickel 70/30 (C71500), UNS C71640
Inconel ANSI B16.5 Class 150 Weld Neck Flanges ASTM B564 / ASME SB564, Inconel 600, 601, 625, 718, 783, 690, x750 ANSI B16.5 Class 150 Weld Neck Flanges
Hastelloy ANSI B16.5 Class 150 Weld Neck Flanges ASTM B564 / ASME SB564, Hastelloy C276 (UNS N10276), C22 (UNS N06022), C4, C2000, B2, B3, X Flanges
Monel ANSI B16.5 Class 150 Weld Neck Flanges ASTM B564 / ASME SB564, Monel 400 (UNS No. N04400), Monel 500 (UNS No. N05500)
Alloy 20 ANSI B16.5 Class 150 Weld Neck Flanges ASTM B462 / ASME SB462, Carpenter® 20 Alloy, Alloy 20Cb-3
Nickel ANSI B16.5 Class 150 Weld Neck Flanges ASTM B564 / ASME SB564, Nickel 200, Nickel 201, Nickel 205, Nickel 205LC
Duplex ANSI B16.5 Class 150 Weld Neck Flanges S31803 / S32205 A182 Gr F51 / F52 / F53 / F54 / F55 / F57 / F59 / F60 / F61
Super Duplex ANSI B16.5 Class 150 Weld Neck Flanges S32750 / S32760 A182 Gr F51 / F52 / F53 / F54 / F55 / F57 / F59 / F60 / F61
Incoloy ANSI B16.5 Class 150 Weld Neck Flanges ASTM B564 / ASME SB564, Incoloy 800, 800H, 800HT (UNS N08800), 825 (UNS N08825), 925 Flanges

Manufacturing Standards of Weld Neck Flanges

ASME/ANSI B16.5 Weld Neck Flange
PRESSURE CLASS 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS, DIN Standard ND-6,10, 16, 25, 40 Etc.
DIN EN 1092-1 Face Dimensions PN 2.5, PN 6, PN 10, PN 16, PN 25, PN 40, PN 63, PN 100, PN 160, PN 250, PN 320, PN 400
BS 4504 SEC 3.1, BS 4504[PART 1], BS 1560 BOSS Weld Neck Hubbed Flange
BS10 Weld Neck Boss Flange
TABLE D, E, F, H
DIN FLANGES DIN 2527, 2566, 2573, 2576, 2641,2642, 2655, 2656, 2627, 2628, 2629, 2631, 2632, 2633, 2634, 2635, 2636, 2637,2638, 2673
PRESSURE CLASS PN 6 TO PN 100

Other Types of Weld Neck Flanges in Stock

  • Inconel Weld Neck Flange Flat Face
  • Titanium Weld Neck Flange Din 2527
  • High Nickel Alloy Weld Neck Flanges
  • ASME B16.5 Weld Neck Flanges
  • Titanium ASME B16.47 Series A and B Weld Neck Flanges
  • En 1092-1 Ring joint Weld Neck Flange Flange
  • Pn10 ANSI B16.5 Class 300 Weld Neck Flanges
  • ASME B16.5 Weld Neck Flange
  • Monel Alloy Weld Neck Flange Weight 150#
  • Hastelloy Weld Neck Pipe Flange
  • Class 600 WNRF Flange
  • Weld Neck Flange With 1/2 Npt

Manufacturer and Supplier of ASTM A182 Weld Neck Flanges in India, view weight chart & dimensions

ASME B16.5 Weld Neck Flanges Dimensions

Nominal Pipe Size Outside Diameter (O) Thickness (T) Raised Face Diameter (R) Length Thru Hub (Y) Point of Weld (A) Hub Diameter (X) Bore (B) Approximate Weight (lbs) Bolt Circle (C) Number of Holes Diameter of Holes
1/2 3.50 0.44 1.38 1.88 0.84 1.19 0.62 2 2.38 4 0.63
3/4 3.88 0.50 1.69 2.06 1.05 1.50 0.82 2 2.75 4 0.63
1 4.25 0.56 2.00 2.19 1.32 1.94 1.05 3 3.13 4 0.63
1 1/4 4.63 0.63 2.50 2.25 1.66 2.31 1.38 3 3.50 4 0.63
1 1/2 5.00 0.69 2.88 2.44 1.90 2.56 1.61 4 3.88 4 0.63
2 6.00 0.75 3.63 2.50 2.38 3.06 2.07 6 4.75 4 0.75
2 1/2 7.00 0.88 4.13 2.75 2.88 3.56 2.47 8 5.50 4 0.75
3 7.50 0.94 5.00 2.75 3.50 4.25 3.07 10 6.00 4 0.75
3 1/2 8.50 0.94 5.50 2.81 4.00 4.81 3.55 12 7.00 8 0.75
4 9.00 0.94 6.19 3.00 4.50 5.31 4.03 15 7.50 8 0.75
5 10.00 0.94 7.31 3.50 5.56 6.44 5.05 19 8.50 8 0.88
6 11.00 1.00 8.50 3.50 6.63 7.56 6.07 24 9.50 8 0.88
8 13.50 1.13 10.63 4.00 8.63 9.69 7.98 39 11.75 8 0.88
10 16.00 1.19 12.75 4.00 10.75 12.00 10.02 52 14.25 12 1.00
12 19.00 1.25 15.00 4.50 12.75 14.38 12.00 80 17.00 12 1.00
14 21.00 1.38 16.25 5.00 14.00 15.75 13.25 110 18.75 12 1.13
16 23.50 1.44 18.50 5.00 16.00 18.00 15.25 140 21.25 16 1.13
18 25.00 1.56 21.00 5.50 18.00 19.88 17.25 150 22.75 16 1.25
20 27.50 1.69 23.00 5.69 20.00 22.00 19.25 180 25.00 20 1.25
22 29.50 1.81 25.25 5.88 22.00 24.25 21.25 225 27.25 20 1.38
24 32.00 1.88 27.25 6.00 24.00 26.13 23.25 260 29.50 20 1.38

ANSI B16.11 Weld Neck Flanges Suppliers in India

City We Supply 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

Weld Neck Flanges Exporter in India

Countries we export Flanges worldwide:
Manama Atyrau 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
Russia Vietnam Jordan Portugal Egypt
Morocco Israel Costa Rica Iraq Madagascar
Kazakhstan Thailand Romania Philippines Spain
Hongkong Taiwan Japan Ukraine Chile