Forged Flange, Forged steel flanges

Forged flange is defined as a plate type device, normally round, that is attached to the end of a pipe, fitting, valve or other object to facilitate the assembly and disassembly of a piping system.

Forged flanges are manufactured in all the different materials to match the material of the pipe and fittings to which they are being attached. While some flanges are made of Cast Iron, the vast majority of flanges are forged carbon steel.

Forged steel flanges are made in seven primary ratings:

  • ANSI B 16.5 Class 150 lb
  • ANSI B 16.5 Class 400 lb
  • ANSI B 16.5 Class 900 lb
  • ANSI B 16.5 Class 2500 lb
  • ANSI B 16.5 Class 300 lb
  • ANSI B 16.5 Class 600 lb
  • ANSI B 16.5 Class 1500 lb

Forged flange is defined as a plate type device, normally round, that is attached to the end of a pipe, fitting, valve or other object to facilitate the assembly and disassembly of a piping system.

Forged steel flanges are made in seven primary ratings: Class 150, Class 300, Class 400, Class 600, Class 900, Class 1500 & Class 2500

Product Specification and Size

Standard Specification for Forged Flanges: ASME B16.5, ASME B16.47

  • Size Available: NPS 1/2 ~ NPS 120 (DN 15 ~ DN 3000)
  • Pressure Rate: 150LB, 300LB, 400LB, 600LB, 900LB, 1500LB, 2500LB

Material Available

  • A182 F1, F5, F9, F11, F22, F91
  • A105, A350 LF1/LF2/LF3, A694 F42/46/52/56/60/65/70
  • A182 F304/304L, F316/316L, F321, F321H, F317L, F310, F347

Presentation

The above products are very competitive with superior quality, and timely delivery. As one of mass suppliers licensed by Sinopec Corp., the products have been supplied to many foreign engineering companies and clients such as Kvaerner, Toyo, Uhde, Rotary, Dow, Dupont, LG, BP, ConocoPhilips, Emerson, Shell, Bayer, Secco etc.

Forged steel flanges made of carbon steel or stainless steel, the materials conform to the JIS, ASTM A182,A105, DIN17100 ST-2 and BS standard. Dimension to be in accordance with JIS ANSI DIN BS standard accordingly.

Forged stainless steel flanges

The flanges are suitable for connection of steel pipes conveying mediums such as steam, oil, air and water. They are widely used in Chemical industry and Shipbuilding . And the flanges are suitable for welding.The flanges mainly include Welding Neck, Blind, Slip-on, Lap-Joint, Socket,Reducing and Plate type.

150LB Carbon steel forged flange

Size available: 1/2″–72″(DN15-DN1800).

We can supply according to the customer’s drawings or samples stating the materials used.

Forged flanges are manufactured in all the different materials to match the material of the pipe and fittings to which they are being attached. While some flanges are made of Cast Iron, the vast majority of flanges are forged carbon steel.

Forged flange process

Forged steel flanges made of carbon steel or stainless steel, the materials conform to the JIS, ASTM A182,A105, DIN17100 ST-2 and BS standard.

In the production, press the mass of the forging parts, the quantity of the batch of different forging methods. Free forging productivity is low, processing surplus is large, but the tool is simple, universality is large, so it is widely…

Forged steel flanges are made in seven primary ratings:

  • ANSI B 16.5 Class 150 lb
  • ANSI B 16.5 Class 400 lb
  • ANSI B 16.5 Class 900 lb
  • ANSI B 16.5 Class 2500 lb
  • ANSI B 16.5 Class 300 lb
  • ANSI B 16.5 Class 600 lb
  • ANSI B 16.5 Class 1500 lb

Forged flange is the best mechanical properties of a flange product, its raw materials are generally tube, and then after cutting and then continue to beat, to eliminate the ingot in the segregation, loose and other defects. Price and mechanical properties are higher than ordinary casting flange a grade. The flange is a part that connects the pipe with the pipe and the valve, is connected to the pipe end. It is also used for the flange on the equipment inlet and outlet.

The connection between the two devices is the part connecting the pipe to the pipe. At the end of the tube. Is a subsidiary of the pipeline accessories products. Forging flange The main materials are carbon steel, alloy steel, stainless steel. The main criteria are GB, superscript, American Standard, German standard, the Japanese standard and so on.

The main anti-corrosion treatment is oil and galvanized. Forging flange pressure, temperature performance is better, generally applicable to high pressure and high temperature working environment.

The various types of Forged steel flanges are:

Blind Flanges
A blind, or blanking, flange is a round plate with no center hold (but with bolt holes) that closes the ends of piping systems.

Lap Joint Flanges
Piping fitted with lapped pipe or with lap joint stub ends often use lap joint flanges. Also, systems frequently taken apart for inspection and cleaning often use lap joint flanges.

Orifice Flanges
Orifice meters that measure the flow rate of either gases or liquids use orifice flanges.

Reducing Flanges
When a change in diameter is required in a piping system, reducing flanges are used. A reducing flange has a specified diameter with a bore of a different, smaller diameter.

Slip-On Flanges
Slip-on flanges slide over the end of a pipe and are then welded into place. These flanges work well for low-pressure applications.

Socket Weld Flange
The socket weld flange is counter-bored to accept the pipe before being fillet welded. This type of flange is similar to a slip-on flange. The bore of the pipe and flange are the same, which provides good flow characteristics.

Threaded Flanges
Threaded flanges, which are threaded in the bore to match an external thread on the pipe, are attachable to a pipe without welding.

Weld Neck Flanges
Weld neck flanges have a long tapered hub and are often used for high-pressure applications. The pipe and flange bores match, which reduces turbulence and erosion inside the pipeline.

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