Wrought and Forged Fittings

Wrought and forged fittings are two types of fittings used in piping systems, particularly in industries like oil and gas, chemical, and construction. Both types are made from metal but have different manufacturing processes, which affect their properties and uses.

Key Differences between Wrought and Forged Fittings

Manufacturing Process: wrought fittings are shaped through a process like bending or rolling, while forged fittings are made using compressive forces at high temperatures.
Strength and Durability: forged fittings tend to be stronger and more durable because the forging process improves the metal’s structure.
Application: wrought fittings are generally used in standard pressure systems, while forged fittings are used in high-pressure, high-temperature, or high-stress applications.

Both wrought and forged fittings are essential components in piping systems, but their choice depends on the specific demands of the application, such as strength, pressure tolerance, and environmental factors.

Wrought Fittings

Manufacturing Process: wrought fittings are made by wrought (or shaping) the metal using processes like rolling, bending, and forging while it is still in a malleable state. The metal is worked at room temperature or slightly elevated temperatures to create the fitting shape.

Materials: these fittings are typically made from a variety of materials like stainless steel, carbon steel, alloy steel, or copper alloys.

Key features of Wrought Fittings

They have excellent uniformity and structural integrity because of the process used to shape them.
Wrought fittings are often used in applications that require high strength and resistance to stress, such as high-pressure or high-temperature systems.
The manufacturing process ensures fewer internal defects and greater resistance to corrosion or cracking.

Available Wrought Fittings ASME B16.9 – EN10253

Type: Welded & Seamless BW fittings

Size: from ½” to 24″

Schedules: 20, 40, STD, 80, XS, 160

Materials:

Carbon Steel & Stainless steel while Alloy steels are available on request
Stainless steel – Stock from ½”o 8”
304L and 316L
Up to DN200 mainly Elbows, Tees, Concentric / Eccentric Reducers and Caps

Welded & Seamless Carbon steel pipe up to DN800.

Furthermore, we can supply fittings in Malleable cast iron, Brass, Bronze, Copper for Water supply and Heating applications as well as Compression Fittings in Carbon & Stainless steel for Instrumental, Hydraulic and Pneumatic applications.

Common Applications

Oil & Gas Industry
Construction & Infrastructure
Transportation
Pharmaceutical Industry
Pneumatic & Hydraulic Systems
Fire Protection Systems
Power Generation
Chemical/Petrochemical Plants
HVAC Systems
Water Treatment Plants
Shipbuilding & Marine Applications
Food & Beverage Industry

Types of Wrought Fittings

Elbows 45° – 90° – 180° Long & Short Radius
Bends 180° – ASME, Iso, Din, EN
Concentric – Eccentric Reducers
Equal – Reducing Tees
Barred – Lateral Tees
Caps – Crosses

Forged Fittings

Manufacturing Process: forged fittings are created by forging the metal, which involves shaping the metal using compressive force (like hammering or pressing) while it’s at a high temperature. The process results in a denser structure that improves the strength and toughness of the material.

Material: like wrought fittings, forged fittings are often made from stainless steel, carbon steel, or alloy steel.

Key features of Forged Fittings

Forged fittings are typically stronger and more durable than wrought fittings due to the forging process, which increases the density and integrity of the material.
They are particularly used in high-stress, high-pressure environments where strength is a primary consideration.
The process often results in fittings with fewer internal voids, making them less prone to failure under extreme pressure or temperature.

Connections of Forged Fittings

1.Threaded Connections

Purpose: threaded fittings are used for connecting pipes where no welding is required. They are commonly used in smaller pipe sizes and low-pressure systems.

Thread Types:

NPT (National Pipe Thread): The most common type of threaded connection in the United States. It uses a tapered thread to create a tight, pressure-tight seal.
BSPT (British Standard Pipe Tapered): Like NPT but used in British and European systems.
BSPP (British Standard Pipe Parallel): For parallel threads, these require the use of seals, gaskets, or o-rings to create a leak-tight seal.

Common Threaded Fittings: Couplings, Elbows typically at 90° or 45°, Plugs, Caps

Pression Ratings:

Common pressure classes for threaded fittings are:

Class 2000 – Class 3000 – Class 6000

2. Socket-Weld Connections

Purpose: socket-weld connections are used where the pipe is inserted into the fitting, and a weld is applied around the joint to create a secure and leak-tight connection. This method is commonly used for medium-pressure and high-pressure applications.

Socket-Weld Process: the pipe end is inserted into the socket of the fitting, and then the connection is welded around the fitting, ensuring a strong, permanent joint.

Common Socket-Weld Fittings: Couplings, Elbows, Tees, Reducers

Pression Ratings:

Common pressure classes for socked weld fittings are:

Class 3000 – Class 6000 – Class 9000

Available Forged Fittings ASME B16.11

Type: High Pressure forged fittings SW, NPT, BSP, BW #3000 – #6000 ASME

Materials: Carbon & Stainless steel while Alloy steels are available on request

Classes: #150 to #4500