Carbon Steel Blind Flange

Payment Type: L/C,T/T,D/P,Paypal,Money Gram,Western Union
Min. Order: 1 Bag/Bags
Delivery Time: 3 Days

Basic Info

Model No.: 3/4"-100"

Standard: DIN, GB, ANSI, GOST, BSW, ASME  B16.5,ASME/ANSI B16.36,ASME B16.47

Type: Welding Flange, Carbon Steel Blind Flange

Material: Carbon Steel

Structure: Flanges

Connection: Welding

Sealing Surface: RF

Manufacturing Way: Forging

Certification: ISO.UKS.SGS.BV

Package: Wooden Boxes, Wooden Pallets

Brand Name: HAOYUAN

Crafts: Cold Extrusion, Thermoforming, Forging

Application: Water Conservancy, Electric Power, Power Station

Materials: A105,Q345,Q235...

Size: 3/4"-100"

Nominal Pressure: Class150-Class2500

Additional Info

Packaging: Wooden boxes, Wooden pallets

Productivity: 20T/Day


Transportation: Ocean,Land,Air

Place of Origin: CANGZHOU

Supply Ability: 500T/Month

Certificate: ISO

Product Description

Carbon Steel Flange, Forged stainless steel Flange,Weld Neck Flange, Slip on flange , Plate flange , Blind Flange

Production process is divided into forging, casting, cutting, these three.
Casting flange and forged flange
Casting out of the flange, rough shape size, processing capacity is small, low cost, but there are casting defects (pores. Cracks. Inclusions); casting internal organization streamlined poor (if the cutting parts, streamlined)
Forging flange is generally less than the casting flange carbon is not easy to rust, forging streamlined, the organization is more compact, mechanical performance is better than casting flange;
Forging process improper also appear grain large or uneven, hardening crack phenomenon, forging costs higher than the casting flange.
Forging is able to withstand higher shear and tensile forces than castings.
Casting the advantage is that you can come up with more complex shape, the cost is relatively low;
Forging the advantages of internal organization is uniform, there is no castings in the pores, inclusions and other harmful defects;

High-quality products

Blind flange

8 blind flange

blank flange

Blind Flange sealing surface in the form of more types, FF, RF, MF, TG, RJ. It is the middle of the flange without holes, used to plug the pipe mouth. Materials are carbon steel, stainless steel, alloy steel.

Our packaging

blind flange weight


blind flange with npt tap

Steel Flange Production Process                      

Flange production process



Steel Flange workshop


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Production Process

Sales Network

Contact Info



Address: Yanshan County,Cangzhou,Hebei

Contact Person: YIN



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