Hastelloy flanges

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Hastelloy flanges
What is Hastelloy flanges ?

Hastelloy is a nickel based material that shows very high resistance to corrosion. The alloy contains chromium and molybdenum which enhances the properties. Hastelloy screwed flange shows great performance in both oxidizing and reducing environments, along with different corrosive media. They show exceptional resistance to both sulphuric and hydrochloric acids. Due to its properties, reputed Hastelloy flanges manufacturers recommend the products for chemical processing applications, especially the C276 grade.

The Hastelloy flanges have their standard sizes ranging between ½ to 12”. They are available with different standards & specifications and pressure classes from PN6 to PN 64 and higher. The Hastelloy orifice flange is easily customizable and they can be manufactured as per application requirements. They come in different types for serving varied piping operations. The Hastelloy plate flange has low thermal stability and can be used in waste management technologies.

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We are pleased to introduce ourselves as the first hastelloy slip on and blind flange manufacturer in India, know more about its application

What are Hastelloy blind flange used for?

The Hastelloy blind flange can be used to close the end of a piping system for permanent or temporary sealing. It can be used during pressure testing or if there is a plan for future expansion of the piping system. The Hastelloy spectacle blind flange can also be used for maintenance or repair purposes and it can block piping equipment too like valves, pumps, etc. These can also be considered as safety devices that can reduce the risk of leaks and spills.

Trust regent steel for supplier of top quality ASTM B564 hastelloy alloy forged and weld neck flange in Mumbai as per ANSI/ASME B16.5 standards. Learn more about buying tips

Hastelloy blind flange

Hastelloy blind flange

ASTM B564 hastelloy slip on flange

ASTM B564 hastelloy slip on flange

Hastelloy weld neck flange

Hastelloy weld neck flange

How do you choose the best Hastelloy flange for your needs?

To select the best Hastelloy forged flange for your requirements, you can consider the following:

  • Identify the purpose and operational condition of the application to select the right Hastelloy grade.
  • Determine the right type, standard and size of the flange for your application.
  • The surface finish should be chosen carefully to enhance the flange properties.
  • The gasket and piping material should be compatible to the Hastelloy threaded flange.
  • Select the appropriate pressure class and consider different environmental factors to maximize the flange performance over time.
  • Always purchase the ASME SB564 Hastelloy reducing flange from renowned manufacturers like Regent Steel & Engineering Co. They are reliable, reputed and have many satisfied clients worldwide.

we keep a ready stock inventory of hastelloy alloy lap joint flange ranging from ½” to 36″ in class 150 to 2500 with different face use for fuel and water pipelines applications.

Hastelloy flanges specification
Size Type Pressure
1/2 To 60 Inch NB Socket-Weld, Threaded, Lap Joint, Blind, Weld Neck, Slip-On PN6 to PN64
Specification Grade Face type

ASTM B564 | ASME SB564

C276, C22, B2, B3, X, C-4, C2000 FF, RF, RTJ
Class Standard Application

150 to 2500

ANSIASME B16.5, B16.47 Series A & B Fuel and water pipe line
Explore our ASME SB564 hastelloy steel socket weld and threaded flange stock and other supply range , which can be provide in custom size to meet customer requirements.
Basic types of hastelloy alloy flanges
Hastelloy alloy lap joint flange

Hastelloy alloy lap joint flange

  • 1/2 to 60 inch NB
  • ANSI/ASME B16.5
  • ASTM B564 | ASME SB564
Hastelloy steel socket weld flange

Hastelloy steel socket weld flange

  • Ring Type Joint (RTJ)
  • Raised Face (RF)
  • Flate Face (FF),
ASME SB564 hastelloy forged flange

ASME SB564 hastelloy forged flange

  • Class: 150 to 2500
  • Pressure: PN6 to PN64
  • Grade: C276, B2, C22, B3, X
Is it difficult to find hastelloy reducing and plate flange in uncommon sizes. purchase online at dealer pricing and examine its composition at Regent Steel.
Hastelloy steel socket weld flange chemical properties
Grade UNS Cr Mo S≤ Si≤ Fe C≤ Co≤ Mn≤ P≤
C276 N10276 14.5-16.5 15.0-17.0 0.03 0.08 4.0-7.0 0.01 2.5 1.0 0.04
C22 N06022 20.0-22.5 12.5-14.5 0.02 0.08 3.0-6.0 0.015 2.5 0.5 0.02
B3 N10675 1.0-3.0 27.0-32.0 0.01 0.10 1.0-3.0 0.01 3.0 3.0 0.03
B2 N10665 1.0max 26.0-30.0 0.03 0.10 2.0max 0.02 1.0 1.0 0.04
X N06002 20.5-23.0 8.0-10.0 0.03 1.0 17.0-20.0 0.05-0.15 0.5-2.5 1.0 0.04
C2000 N06200 22.0-24.0 15.0-17.0 0.01 0.08 3.0max 0.01 2.0 0.5 0.025
Hastelloy slip on flange mechanical properties
  Elongation Density Melting Point Tensile Strength Yield Strength (0.2%Offset)
C276 40% 1370 °C (2500 °F) Psi – 1,15,000 , MPa – 790 8.89 G/Cm33 Psi – 52,000 , MPa – 355
C22 45 % 1399 °C (2550 °F) Psi – 1,00,000 , MPa – 690 8.69 G/Cm3 Psi – 45000 , MPa – 310
B3 40% 1370 °C (2550 °F) Psi – 1,15,000 , MPa –760 9.2 G/Cm3 Psi – 52,000 , MPa – 350
B2 40% 1370 °C (2550 °F) Psi – 1,15,000 , MPa –760 9.2 G/Cm3 Psi – 52,000 , MPa – 350
Hybrid BC1 40% 1343 - 1443°C 725 8.83 G/Cm³ 310
C4 55% 1350-1400 °C 783 8.64 G/Cm3 365
X 35% 1355°C 655 MPa 8.22 G/Cm³ 240 MPa
Hastelloy blind flange equivalent
Hastelloy C22 N06022 - 2.4602 NW 6022 - NiCr21Mo14W -
Hastelloy C276 N10276 - 2.4819 NW 0276 ХН65МВУ NiMo16Cr15W ЭП760
Hastelloy B2 N10665 - 2.4617 - - - -
Is it possible to customize Hastelloy slip on flange?

Different aspects of the Hastelloy slip on flange can be customized as per the application requirements.

  • Non-standard sizes and dimensions.
  • Grade of the flange
  • The face and surface finish on the flange.
  • Pressure class and ratings.
  • Custom bolt holes and drilling patterns and special features like extended neck, hubs, etc.,
  • Properties like corrosion resistance and strength level.
How do Hastelloy c276 and Hastelloy c22 flanges differ?
  • Hastelloy c276 has higher molybdenum content whereas C22 has higher chromium content.
  • C22 offers higher corrosion resistance than C276.
  • C276 ASTM B564 Hastelloy alloy lap joint flange shows good performance within the temperature range of cryogenic to 1040 °C. C22 can be used up to 677 °C in oxidizing environments.
  • C276 is easily machinable while C22 is hard to machine.
  • C22 Hastelloy steel socket weld flange is slightly more expensive than C276.
What are the Hastelloy weld neck flange standards?

Some standards of Hastelloy weld neck flange are ASME B16.5, ASME B16.47 Series A and B, EN 1092-1, JIS B2220, etc.