Forged Flanges

This specification covers forged low alloy flanges for use in pressure systems manufactured to specified dimensions or industry standard dimensional specifications.

These are available in different types such as Slip On Flanges., Blind Flanges, Weld Neck Flanges, Socket Weld Flanges, Orifice Flanges, Spectacle Blind Flanges, Screwed / Threaded Flanges, Reducing Flanges, and Ring Type Joint Flanges (RTJ).

Other than carbon, these contain in them substantial quantities of nickel, manganese, chromium, silicon, tungsten, vanadium, molybdenum.

These are also added with limited amounts of elements like sulphur, silicon, manganese and phosphorous that helps in increasing ¨C Hardness, Strength, Chemical resistance, and more.

Alloy A182 flange also has durability and longevity.

Although blind flanges and certain reducing flanges could include plate as a material for construction.

Alloy Steel Flanges are made in different steel alloys. The flanges vary in dimensions and types. There are ? inches through 48 inches of nominal diameter sizes of flanges.

HT PIPE is a leading manufacturer of the ASTM A182 Low Alloy Steel flanges as well as the other types of alloys. The ASTM A 182 specification specifies flanges for high pressure services.

The flanges also come in B16.5, B16.47 and other standards and dimensions. The Alloy Steel Flange Material can vary according to the chemical composition.

The ANSI B16.5 Alloy Steel Slip On Flange is a flange type that allows the pipes to slip onto the flange and makes the connection in a precise locations.

Seamless pipes are used with slip on flanges to make the process smooth. The Alloy Steel Blind Flanges are used to close a pipe connection.

There are different types and grades of the blind flanges as well. There are other different types of ASME SA 182 AS Pipe Flanges such as the weld neck flanges and socket weld flanges each specified for a particular role

The flanges can be threaded, ring type joint, lap joint, weld neck or socket welded.

The Alloy Steel Weld Neck Flange has a welded neck onto it that holds larger pipes in place for easy welding and installation.

As one of the leading Alloy Steel Flanges Manufacturers in China we supply all different types of flanges in all material grades. Please contact us for your alloy steel flange needs.

While the term alloy steel could even apply to stainless steel grades, the ASTM specification or ANSI standard used to produce the Alloy Steel Flanges would give the buyer details regarding the chemistry details of these products.

Several ANSI/ ASME standards use materials that are forged or cast to produce Cast AS Blind Flanges.

F51 duplex stainless steel is especially suitable for use in the temperature range of -50¡ãF/+600¡ãF, and can also be used for lower temperatures under strictly limited conditions (especially for welded structures).

Application fields of duplex stainless steel:
¡¤ Pressure vessels, high-pressure storage tanks, high-pressure pipelines, heat exchangers (chemical processing industry).
¡¤ Oil and gas pipelines, heat exchanger fittings.
¡¤ Sewage treatment system.

The ASTM A182 F51 flanges refer to standard or non-standard flanges manufactured in accordance with ASTM A182 Grade F51, which is designated with UNS number S31803.

Astm A182 F51 flange is made up of carbon, chromium, manganese, silicon, phosphorus, sulfur, nickel, nitrogen, molybdenum and iron.

The A182 Gr. F51 / S31803 material is a typical duplex stainless steel, which contains approximately 50% ferrite and 50% austenite.

The 21% chromium content is the key to extreme corrosion resistance and strength of the SA 182 f51 flanges. HT PIPE is a leading supplier and manufacturer of the flanges in various scales, shapes and types.

The combination of the ferritic phase and austenitic phase provides both high strength and excellent corrosion resistance.

The material has high strength values. The minimum yield strength is 450MPa and the minimum tensile strength is 620MPa, with 25% minimum elongation and 290HB Brinell hardness.

The SA 182-F51 S31803 comes under ASME B16.47, B16.48 and B16.5 standards with sizes ranging from 1/8 NB to 48NB.

The pressure ratings of the material are designated by classes 150Lbs through 2500LBs. There are different types of the duplex f51 flanges such as the raised face, ring type joint and flat face flanges.

The different face types have their own advantages in piping applications.

The A182 F51 material has carbon, 2% manganese, phosphorus, sulfur, 1% silicon, chromium, 4.5% nickel, 2.5% molybdenum and nitrogen it.

Due to the material composition, the strength and the corrosion resistance, these flanges are used in a variety of applications.