Short Description

Model No.: Hastelloy-C276-Custom-Blind-Flange-RF-2-Inch-150LB

China Custom Flange Manufacturer offers ASTM B574 Hastelloy C276 Custom Blind Flange, RF, 2 Inch, 150LB.

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Key Specifications / Features

Type: Custom Blind Flange

Material: Hastelloy C276 (UNS N10276)
Size: 2” (DN50)
Standard:  ASTM B574

Pressure: 150#

Custom flange is usually used for customers’ special requirement. They indicate the application service , the data, the specification and the drawing. Then we produced the Non-Standard flanges according to their requirements.

20185291725451019610 - ASTM B574 Hastelloy C276 Custom Blind Flange RF 2 Inch 150LB

custom blind flange is a solid disk used to block off a pipeline or to create a stop. It is machined in the same manner as a regular flange with the mounting holes around the perimeter and the gasket sealing rings machined into the mating surface. The difference is that a custom blind flange has no opening to allow fluid to pass through. The custom blind flange can be inserted between two open flanges and used to block off the flow of liquid through a pipeline.

Without the custom blind flange it would be difficult to perform maintenance or repairs on a pipeline. The flow would need to be shut off at the nearest valve, which could be miles away from the repair area. Valves are also very expensive and are prone to sticking. The Non-Standard blind flange is a much more cost efficient way of sealing a pipe.

China Custom Flange Manufacturer Yaang supplies ASTM B574 Alloy C276 Blind Flange, RF, 2 Inch, 150LB, Non-Standard.

Specifications – ASTM B574 Hastelloy C276 Custom Blind Flange


B619, B366, B564 


SB619, SB366, SB564



Chemical Composition – ASTM B574 Hastelloy C276 Custom Blind Flange

C Co Cr Fe Mn Mo Ni P S Si V W
Max Max     Max     Max Max Max Max  
0.01% 2.5%



4-7% 1.0% 15 -17% BAL .04% 0.03% 0.08% 0.35% 3-4.5%

Mechanical & Physical Properties Of ASTM B574 Hastelloy C276 Custom Blind Flange

Density 8.89 g/cm3
Melting Point 1370 °C (2500 °F)
Tensile Strength Psi – 1,15,000 , MPa – 790
Yield Strength (0.2%Offset) Psi – 52,000 , MPa – 355
Elongation 40 %
Yaang offer a made to order custom flanges service to customers that require something non-standard. This may be something simple like a reduction in the bore of the product to meet a higher working pressure, an increase of the thread lengths, the use of exotic materials or simply you have a flange and you don’t know where to get it from, we can reverse engineer the product and create it exactly as the sample.
We have had many requests throughout the years for some of the very bespoke and unusual requests for Non-Standard Flanges and Custom Flanges. No matter how complicated we like the challenge.

If you have a Non-Standard flanges or custom flanges request and we say we cannot make it then it simply cannot be done.

Standard Fittings in Other Material:

The list below shows the range of materials available for Non-Standard fittings or Custom fittings.

  • C1144 Stressproof
  • 1018
  • 12L14

  • 4130
  • 4140
  • 4340
  • C464 Brass
  • CDA C510 Bronze
  • Aluminum 6061 T-6
  • 17-4
  • 13-8 MO
  • 303
  • 304
  • 316L
  • Nitronic 50 and 60
  • Super Duplex 2507
  • Hastelloy 276 and C22
  • Monel 400 and K-500
  • Titanium
  • Inconel 625, 718 and 925

Non-Standard and Hard-to-Find Fittings:

  • Standard connections in unusual sizes
  • Standard connections in non-standard lengths
  • Standard connections with non-standard ID and/or OD
  • Metric, SAE, Socket or Butt Weld connections

Custom Fittings:

  • Pipe couplings
  • Half couplings, full couplings
  • flange
  • Manifolds with unusual connection combinations
  • Custom parts
  • Pipe unions
  • Olets
  • Pipe elbows
  • Pipe tees

Application range: Petroleum, chemical, power, gas, metallurgy, shipbuilding, construction, etc

For any non-standard, custom or standard flanges in the above materials, please feel free to contact by email

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