Blind Flange

Austenitic / Duplex Steel / Nickel Alloy / Cobalt Alloy

ASTM A815 / ASME SA815 F304/304L Pipe Fitting Blind Flange

Blind Flange:
Blind flange is a solid disk used to block off a pipeline or to create a stop. Similar to a regular flange, a blind flange has mounting holes around the perimeter and the gasket sealing rings are machined into the mating surface. The difference is that a blind flange has no opening for fluids to pass through.

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ASTM A815 / ASME SA815 F304/304L Pipe Fitting Blind Flange

 ASTM A815 / ASME SA815 304/304L Pipe Fitting Blind Flange

 

Blind Flange Product Description:

 

1 . Commodity: Welding Neck, Blind, Slip-On, Lap Joint, Socket Weld, Threaded, Spectacle Blind, etc
2 . Surfacing: RF, FF, RTJ
3 . Materials: Stainless Steel, Duplex Steel, etc
4 . Standards: ANSI B16.5, ANSI B 16.47
5 . Tolerances: according to the specification or customer’s request and drawings
6 . Applications: Pipe connection, Piping project construction, etc

7 . Pressure class : 150 - 2500lbs; class 150-class 2500

 

Blind Flange Advantages

 

a) Superior surface finish

b) Better mechanical property

c) More precise dimension

d) Perfect inspection method and inspection equipment

 

Blind Flange Test:

 

NTD ( Ultrasonic test, Eddy Current test )

Mechanical Test ( Tension Test, Flaring Test, Flattening Test, Hardness Test, Hydraulic test )

Metal Test ( Metallographic Analysis, Impact Test - High/low temperature )

Chemical Analysis ( Photoelectric Emission Spectroscopic )

Manufacturing Experience

Plant Area

Max Diameter of Welded Pipe

Annealing Furnace Length

What Grades Can We Provide?

Nickel Alloy
NI-MO: N10001,N10665,N10675...
NI-CR-MO: N10276,N06022,N06035,N06455,N06002...
NI-CR-MO-CU: N06030,N06200,N08031,N08825,N08020...
NICR-MO-W: N06230...
NICKEL: N02200,N02201...
NI-CU: N04400,N05500...
NI-CR-FE: N06600,N06601,N06690,N08800,N08810,N08811...
NI-CR-MO-NB: N06625,N07718...

Austenitic
304/L/H/N, 316/L/H/N/Ti, 321/H, 309/H, 310S, 347/H, 317/L, 904L...

Duplex Steel
31803, 32205, 32750, 32760...

Cobalt Alloy
Alloy 188/ UNS R30188, Alloy L-605/ UNS R30605, Alloy S-816, Alloy 6B, UMCo50, FSX-414, MP-159...

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-ASTM A815 / ASME SA815 F304/304L Pipe Fitting Blind Flange

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FAQ

1. Can you provide samples?
Of course, We can provide a few sample tubes for you to inspect and experiment.
2. Can we mark our logo on the product?
3. What is your packing?
4. What inspection will you do?
5. What certificates do you have?
6. What is your minimum order quantity(MOQ)?
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