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Inconel Flanges

Inconel Flanges

Manufacturer, Supplier & Exporter

Emirerri Steel is a trusted manufacturer and supplier of Inconel flanges, engineered to deliver exceptional strength, corrosion resistance, and performance under extreme temperatures and pressure. Inconel, a nickel-chromium-based superalloy, is widely recognized for its ability to withstand oxidation, high heat, and aggressive chemical environments — making it an ideal choice for critical industrial applications.

Key Features

  • Outstanding Corrosion Resistance: Performs effectively in oxidizing and reducing environments.

  • High-Temperature Strength: Retains mechanical integrity even at elevated temperatures.

  • Excellent Oxidation and Scaling Resistance: Ensures durability under extreme heat.

  • Superior Fatigue and Creep Resistance: Ideal for long-term performance under stress.

  • Excellent Weldability and Fabrication: Compatible with various joining and machining processes.

  • Available in Multiple Pressure Ratings and Sizes: To suit diverse industrial requirements.

Inconel Flanges

Types of Inconel Flanges

  • Weld Neck Flanges (WN): Provide strong, leak-proof welded connections in high-pressure systems.

  • Slip-On Flanges (SO): Easy to align and install, suitable for low to moderate pressure.

  • Blind Flanges (BL): Used to close off pipe ends or vessels for inspection and maintenance.

  • Socket Weld Flanges (SW): Ideal for small-diameter, high-pressure pipelines.

  • Threaded (Screwed) Flanges (TH): Enable non-welded connections, perfect for moderate-pressure applications.

  • Lap Joint Flanges (LJ): Used with stub ends for easy disassembly and cleaning.

  • Ring Type Joint (RTJ) Flanges: Provide a high-integrity seal for critical applications involving high pressure and temperature.

  • Spectacle Blind Flanges: Used for isolating sections of a pipeline during maintenance.

Inconel Flanges Grades & Standards

Emirerri Steel offers Inconel flanges in various grades, ensuring compatibility with diverse industrial needs and global standards:

Common Grades:

Standards Compliance:

  • ASTM B564

  • ASME B16.5

  • EN 1092-1: 

  • DIN

Flange Ratings / Pressure Classes

ASME/ANSI B16.5 Formula
PT = (Pr x SI) / 8750
  • PT = rated working pressure in psig for specified material at temperature T.
  • Pr = Pressure rating as per Class in Psig.
  • SI = Selected stress in Psig for specified material at Temperature T.
  • Refer to ASME B16.5 Annex B for the detailed calculation of Pressure Ratings.
Flanges pressure rating in psig for common carbon steel ASME flanges
( A105 / A350 LF2 / A350 LF3 / A350 LF6)
Temperature (F°)150#300#400#600#900#1500#2500#
-20 to 1002857409851480222037056170
2002606809051360203533955655
3002306558701310196532705450
4002006358451265190031705280
5001706058051205181030155025
6001405707551135170528404730
6501255507301100165027454575
7001105307101060159026554425
750955056751015152025354230
80080410550825123520553430
8506532042564095515952655
9005023030546069011501915
950351351852754106851145
10002085115170255430715

 

Face Types

  • Flat Face (FF)
  • Raised Face (RF)
  • Ring Type Joint (RTJ)

Sizes and Pressure Classes

  • Nominal Pipe Size (NPS): ½” to 48”

  • DN Range: DN15 to DN1200

  • Flange Ratings: Class 150, 300, 400, 600, 900

  • DIN/EN Ratings: PN6, PN10, PN16, PN25, PN40

Applications

  • Chemical and Petrochemical Plants: For heat exchangers, reactors, and pressure vessels.

  • Aerospace Industry: In jet engines, exhaust systems, and turbine components.

  • Oil & Gas Industry: For offshore platforms, pipelines, and refining systems.

  • Marine Applications: Withstand seawater corrosion and high-salinity environments.

  • Power Generation: Used in gas turbines, boilers, and superheater systems.

  • Pharmaceutical and Food Processing: Provide contamination-free connections in critical systems.

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