Inconel flanges

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Inconel flanges
What is Inconel flanges ?

Inconel is a nickel based alloy that has added chromium and molybdenum in its composition. The material has high strength at elevated temperatures and can withstand corrosion. The Inconel flanges offer high thermal stability and can operate efficiently within the temperature range of cryogenic to 982 °C. The high alloy content in Inconel makes it capable of withstanding a wide range of corrosive environments. This will include mild environments, sea water, neutral salts and alkaline media. The Inconel flanges manufacturer also recommends the products for various oxidizing and reducing environments.

The Inconel screwed flanges are available in different grades and they possess varied properties. Depending on your application requirements, the flange can be used in industries like chemical processing, marine, oil & gas, etc. The exact mechanical properties of the Inconel orifice flange can depend on the grade, type and specific heat treatment.

Table of content

Genuine inconel blind flange manufacturer in India who adhere to ASTM B564, see types

What kinds of Inconel flanges are there?

There are different types of flanges made of Inconel and they are used for varied purposes. Some of them are:

  • Weld neck flange helps to provide a smooth fluid or gas transition from the flange to the pipe. They can be used in high temperature and pressure applications.
  • The Inconel threaded flange uses a screw thread for connecting the flange and pipe.
  • The slip-on flange has a slightly larger diameter than the pipe. They are slid over the pipe and can be used in less demanding applications.
  • The Inconel metal socket weld flange has its bore fixed over the pipe ends through welding. They are used with small diameter pipes for high pressure applications.
  • A blind and Inconel spectacle blind flange is used to seal the pipe end. They do not have a central bore and are used for maintenance and inspection purposes.
  • ASME SB564 Inconel reducing flange can connect pipes of different diameters as they have a small and large bore on either end.

Easily obtain Inconel alloy slip on and weld neck flange in unusual sizes according to ANSI/ASME B16.5 in Mumbai ? check out our online inventory and read where can you buy ?

ASTM B564 Inconel blind flange

ASTM B564 Inconel blind flange

Inconel slip on flange

Inconel slip on flange

ASME SB564 Inconel weld neck flange

ASME SB564 Inconel weld neck flange

Where can I buy Inconel blind flange?

You must always buy high quality Inconel blind flange from reputed suppliers. Opt for one of the top manufacturers and suppliers of Inconel products in India Regent Steel & Engineering Co. They are well known for offering competitive pricing. They have experienced professionals who will guide you through the purchase and supply you with dimensionally accurate and surface-treated blind flange fit for your application.

As a supplier, we provide a huge selection of ASME SB564 Inconel lap joint flange in size ranging from ½” to 36″, as well as custom orders at actual costs, see detail specification

Inconel flanges specification
Size Pressure Standard
1/2 " to 60" NB PN6 to PN64 ANSI/ASME B16.5, B16.47 Series A & B
Specification Class Face type
ASTM B564 | ASME SB564 150, 300, 600, 900, 1500, 2500 FF, RF, RTJ
As stockist if you need Inconel metal socket weld and reducing flange in almost any size, face and pressure, we can deliver it to you in the highest possible quality. must know its more types
Most selling types of inconel alloy flange
Inconel alloy lap joint flange

Inconel alloy lap joint flange

  • ASTM B564 | ASME SB564
  • 1/2 to 60 inch NB
  • Grade 625, 601, 718, 600
Inconel forged flange

Inconel forged flange

  • Pressure: PN6 to PN64
  • Class: 150# to 2500#
  • ANSI/ASME B16.5
Inconel metal socket weld flange

Inconel metal socket weld flange

  • Ring Type Joint (RTJ)
  • Raised Face (RF)
  • Flate Face (FF)
We are providing ASME SB564 Inconel alloy threaded, forged and plate flange with mill TC at the most affordable prices, view equivalent/ chemical /mechanical properties
Inconel blind flange equivalent
Nickel Alloys Werkstoff No. UNS no. Density (8.8 g/cm3) Tradename
Alloy 718 2.4668 N07718 8.19 Inconel 718
Alloy 601 2.4851 N06601 8.2 Inconel 601
Alloy 625 2.4856 N06625 8.44 Inconel 625
Alloy 600 2.4816 N06600 8.42 Inconel 600
Inconel metal socket weld flange mechanical properties
  Inconel 625 Inconel 600 Inconel 718 Inconel 601
Yield strength – Mpa 345min. 240min. 550 min. 300min.
Density 8.4 g/cm³ 8.4 g/cm³ 8.2 g/cm³ 8.1g/cm³
Tensile strength – Mpa 760min. 550min. 965min 650min.
Brinell hardness (HB) ≤220 ≤195 ≤363 ≤220
Elongation % 30 min. 30min. 30 min. 30 min.
Melting Range,℃ 1290-1350℃ 1370-1425 ℃ 1260-1340 ℃ 1320-1370℃
Inconel slip on flange chemical properties
Inconel Element (% by mass)
Co Mo Fe Cr Nb Ni Ti Mn Al Cu Si S   C B P
625 1.0 8.0-10.0 5.0 20.0-23.0 3.15-4.15 58.0 0.4 0.5 0.4 0.5 0.015   0.1 0.015
600 6.0-10.0 14.0-17.0 72.0 1.0 0.5 0.5 0.015   0.15
718 1.0 2.8-3.3 balance 17.0-21.0 4.75-5.5 50.0-55.0 0.3 0.35 0.65-1.15 0.2-0.8 0.35 0.015   0.08 0.006 0.015
617 10.0-15.0 8.0-10.0 3.0 20.0-24.0 44.2-56.0 0.6 0.5 0.8-1.5 0.5 0.5 0.015   0.15 0.006 0.015
X-750 1.0 5.0-9.0 14.0-17.0 0.7-1.2 70.0 2.25-2.75 1.0 0.4-1.0 0.5 0.5 0.01   0.08
What is the procedure for installing Inconel slip on flange?
  • Prepare the pipes by cleaning and making them free from debris, irregularities, etc. They should be smooth and free of any defects that can affect their sealing properties. Also, check the Inconel slip on flange to ensure there are no defects or damage.
  • Insert the gasket between the raised face of the flange and the pipe end.
  • Align the flange withe the pipe end and insert the bolts & nuts.
  • Tighten them in a cross pattern and ensure even pressure distribution. Do not forget to check the flange alignment in the meantime.
  • Use a torque wrench to tighten the bolt to a specific torque value. You can refer to the manufacturer’s guidelines for this, as under tightening or overtightening can impact the sealing operations.
What factors should be considered when choosing Inconel weld neck flange?
  • The Inconel weld neck flange material and dimension should be compatible with the pipe material.
  • The pressure and temperature rating of the flange should not exceed the operating conditions of the system.
  • The weld neck flange must adhere to appropriate standards and specifications.
  • Consider the corrosion resistance properties and weldability of the flange material.
What is the purpose of Inconel alloy lap joint flange?

The ASTM B564 Inconel alloy lap joint flange and stub end assembly is used in piping system that require frequent disassembly for routine inspection and maintenance. They are quite efficient and well-suited for corrosive applications.

Size chart of inconel alloy flanges
Standard Class Diameter Diameter of Bolt Hole Bolt Size Number of Bolts Bolt Circle Diameter
AS4087 Flanges Table C Flanges 95 14 13 4 67
AS 2129 Flange Table F Flanges 95 14 13 4 67
Table J Flanges 114 17 16 4 83
PN14 Flanges 95 14 M12 4 67
Table D Flanges 95 14 13 4 67
Table E Flanges 95 14 13 4 67
Table H Flanges 114 17 16 4 83
ANSI B16.5 Flanges ANSI 150 Flanges 89 16 13 4 60
ANSI 300 Flanges 95 16 13 4 67
ANSI 900 Flanges 121 22 19 4 83
ANSI 600 Flanges 95 16 13 4 67
ANSI 1500 Flanges 121 22 19 4 83
ISO 7005 (DIN) Flange PN16 Flanges 95 14 M12 4 65
PN10 Flanges 95 14 M12 4 65
PN20 Flanges 90 16 M14 4 60.5
PN6 Flanges 80 11 M10 4 55
PN25 Flanges 95 14 M12 4 65
PN40 Flanges 95 14 M12 4 65
Documentation of Inconel blind flange
  • Fumigation Certificates
  • Packing List
  • Test Certificates certifying NACE MR0175, NACE MR0103
  • Commercial Invoice which includes HS Code
  • Certificate of Origin
  • Material Traceability Records
  • Raw Material Test Reports
  • Heat Treatment Charts
  • Quality Assurance Plan (QAP)
Inconel flanges technical details
Pipe Size - Pipe Flanges Flange Connection Type Max. Pressure Flange Schedule/Class
1/2" FNPT 150 psi ASME B16.5 Class 150
1/2" Socket Weld 275 psi ASME B16.5 Class 150
2-1/2" Slip On 720 psi ASME B16.5 Class 300
3/4" FNPT 150 psi ASME B16.5 Class 150
4" Slip On 720 psi ASME B16.5 Class 300
1/2" Welded 150 psi ASME B16.5 Class 150
3/4" Socket Weld 275 psi ASME B16.5 Class 150
3" Slip On 720 psi ASME B16.5 Class 300
3" Slip On 720 psi ASME B16.5 Class 300
4" Slip On 720 psi ASME B16.5 Class 300
1-1/4" Socket Weld 275 psi ASME B16.5 Class 150
1-1/2" Socket Weld 275 psi ASME B16.5 Class 150
2" FNPT 150 psi ASME B16.5 Class 150
2-1/2" Socket Weld 275 psi ASME B16.5 Class 150
1" Slip On 720 psi ASME B16.5 Class 300
1-1/2" Slip On 720 psi ASME B16.5 Class 300
1/2" Slip On 720 psi ASME B16.5 Class 300
2" Socket Weld 275 psi ASME B16.5 Class 150
2-1/2" Slip On 720 psi ASME B16.5 Class 300
3" Socket Weld 275 psi ASME B16.5 Class 150
4" FNPT 150 psi ASME B16.5 Class 150
4" Socket Weld 275 psi ASME B16.5 Class 150
2" Slip On 720 psi ASME B16.5 Class 300
1/2" Slip On 720 psi ASME B16.5 Class 300
1-1/4" FNPT 720 psi ASME B16.5 Class 300
1" Slip On 720 psi ASME B16.5 Class 300
1-1/4" Slip On 720 psi ASME B16.5 Class 300
1-1/2" Slip On 720 psi ASME B16.5 Class 300
2" Slip On 720 psi ASME B16.5 Class 300
Application of Inconel metal socket weld flange
  • Construction industry
  • Oil and Gas Industry
  • Plumbing
  • Iin Power Plant
  • General Purpose Applications
  • Heating
  • Chemical Industry
  • Defence Industry
ASME SB564 Inconel reducing flange dimensions
Dimensions
‘DN’ (Nominal Diameter) in mm
DN INCH DN INCH
20 3/4 350 14
125 5 800 32
15 1/2 300 12
25 1 375 15
40 1 1/2 450 18
32 1 1/4 400 16
50 2 500 20
80 3 700 28
65 2 1/2 600 24
100 4 750 30
200 8 900 36
Face types of Inconel weld neck flange
Type Face Type of Inconel 625 Flanges
B Raised Face
A Flat Face
C Tongue Face
E Spigot
D Grooved Face
G Ring Recess
F Recess
H O-Ring Groove
Pressure rating of Inconel forged flange
Nominal Diameter Pressure Rating (PN)  
**Nominal BSP Pipe Size PN25 PN10 PN6 PN16 PN40  
DN 15 95 95 80 95 95  
1/2" 65 65 55 65 65 Bolt circle (PCD)
  4 x 14 4 x 14 4 x 11 4 x 14 4 x 14 *
DN 10 90 90 75 90 90  
3/8" 60 60 50 60 60 Bolt circle (PCD)
  4 x 14 4 x 14 4 x 11 4 x 14 4 x 14 *
DN 25 115 115 100 115 115  
1" 85 85 75 85 85 Bolt circle (PCD)
  4 x 14 4 x 14 4 x 11 4 x 14 4 x 14 *
DN 20 105 105 90 105 105  
3/4" 75 75 65 75 75 Bolt circle (PCD)
  4 x 14 4 x 14 4 x 11 4 x 14 4 x 14 *
DN 40 150 150 130 150 150  
1 1/2" 110 110 100 110 110 Bolt circle (PCD)
  4 x 18 4 x 18 4 x 14 4 x 18 4 x 18 *
DN 32 140 140 120 140 140  
1 1/4" 100 100 90 100 100 Bolt circle (PCD)
  4 x 18 4 x 18 4 x 14 4 x 18 4 x 18 *
DN 65 185 185 160 185 185  
2 1/2" 145 145 130 145 145 Bolt circle (PCD)
  8 x 18 4 x 18 4 x 14 4 x 18 8 x 18 *
DN 50 165 165 140 165 165  
2" 125 125 110 125 125 Bolt circle (PCD)
  4 x 18 4 x 18 4 x 14 4 x 18 4 x 18 *
DN 100 235 220 210 220 235  
4" 190 180 170 180 190 Bolt circle (PCD)
  8 x 22 8 x 18 4 x 18 8 x 18 8 x 22 *
DN 80 200 200 190 200 200  
3" 160 160 150 160 160 Bolt circle (PCD)
  8 x 18 8 x 18 4 x 18 8 x 18 8 x 18 *
DN 150 300 285 265 285 300  
6" 250 240 225 240 250 Bolt circle (PCD)
  8 x 26 8 x 22 8 x 18 8 x 22 8 x 26 *
DN 125 270 250 240 250 270  
5" 220 210 200 210 220 Bolt circle (PCD)
  8 x 26 8 x 18 8 x 18 8 x 18 8 x 26 *
DN 200 360 340 320 340 375  
8" 310 295 280 295 320 Bolt circle (PCD)
  12 x 26 8 x 22 8 x 18 12 x 22 12 x 30 *
DN 175 330 315   315 350  
7" 280 270   270 295 Bolt circle (PCD)
  12 x 26 8 x 22   8 x 22 12 x 30 *
DN 300 485 445 440 460 515  
12" 430 400 395 410 450 Bolt circle (PCD)
  16 x 30 12 x 22 12 x 22 12 x 26 16 x 33 *
DN 250 425 395 375 405 450  
10" 370 350 335 355 385 Bolt circle (PCD)
  12 x 30 12 x 22 12 x 18 12 x 26 12 x 33 *
DN 500 730 670 645 715 755  
20" 660 620 600 650 670 Bolt circle (PCD)
  20 x 36 20 x 26 20 x 22 20 x 33 20 x 42 *
DN 350 555 505 490 520 580  
14" 490 460 445 470 510 Bolt circle (PCD)
  16 x 33 16 x 22 12 x 22 16 x 26 16 x 36 *
DN 400 620 565 540 580 660  
16" 550 515 495 525 585 Bolt circle (PCD)
  16 x 36 16 x 26 16 x 22 16 x 30 16 x 39 *
DN 600 845 780 755 840    
24" 770 725 705 770   Bolt circle (PCD)
  20 x 36 20 x 27 20 x 24 20 x 33   *
Testing of ASTM B564 Inconel alloy lap joint flange
  • Flattening Test
  • Pitting Resistance Test
  • Chemical Analysis – Spectro Analysis
  • Mechanical Testing Such as Tensile of Area
  • Positive Material Identification – PMI Testing
  • Hardness Test
  • Micro and MacroTest
  • Pitting Resistance Test
  • Flaring Test
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