Stainless Steel 304 Pipe Fittings

304 stainless steel pipe fittings are a general term for various pipe fittings made of 304 stainless steel. 304 stainless steel is a universal stainless steel material, belonging to austenitic stainless steel, with good corrosion resistance, heat resistance, low temperature strength and mechanical properties. It does not rust in weak corrosive media such as air, water, and steam. Therefore, 304 stainless steel pipe fittings are widely used in various fields.

Since 304 stainless steel is non-toxic, odorless, easy to clean and corrosion-resistant, it is widely used in food processing equipment, such as pipelines, storage tanks, mixers, etc. In the chemical industry, 304 stainless steel pipe fittings are often used to transport corrosive liquids and gases, such as acids, alkalis, salt solutions, etc.

What are stainless steel 304 pipe fittings?

Stainless steel 304 pipe fittings include stainless steel butt weld pipe fittings, socket weld fittings and threaded fittings. Stainless steel pipe fittings are widely used in the production of various equipment and parts due to their excellent corrosion resistance and formability. It is mainly composed of iron, chromium, nickel and other elements, of which the chromium content is about 18% and the nickel content is about 8%. This chemical composition enables stainless steel pipe fittings to exhibit good corrosion resistance in most environments, especially in oxidizing environments. In addition, stainless steel 304 pipe fittings also have good mechanical properties and heat resistance, and can maintain stable performance in a certain high temperature environment.

What are 304 stainless steel pipe fittings used for?

Stainless steel 304 pipe fittings are widely used in many fields due to their good comprehensive performance.

Chemical industry: stainless steel 304 pipe fittings can be used to transport various chemical media, such as acid, alkali, salt solution, etc. Although the corrosion resistance of 304 stainless steel in some highly corrosive media is limited, it can still meet the use requirements for some weakly corrosive or moderately corrosive chemical media. In the connection of chemical production equipment, 304 stainless steel pipe fittings play an important role.

Mechanical manufacturing field: In the hydraulic system of the machine, stainless steel 304 pipe fittings are used to connect hydraulic pipelines, transfer hydraulic oil, and realize the power transmission and control of the machine. Its high strength and corrosion resistance can withstand the high pressure and complex working environment in the hydraulic system, ensuring the reliability and stability of the hydraulic system.

What is the code for stainless steel pipe fittings?

HS Code used for Stainless steel fittings - Export

Stainless Steel 304 Butt Weld Pipe Fittings

Stainless steel 304 butt weld pipe fittings are made of stainless steel and connected to stainless steel pipes by welding. They include elbows, tees, crosses, reducers and other types, which are used to change the direction of the pipeline, branch or connect pipelines of different diameters.

When connecting the pipeline, align the welding part of the pipe fitting with the end of the pipeline, and then use the welding process to melt and fuse the metal materials of the two together to form a firm connection. This welding connection method can ensure the sealing and strength of the pipeline system, enabling it to withstand higher pressures and temperatures.

A403 WP304 Specification

Stainless Steel 304 Pipe Fittings Chemical Composition

Mechanical Properties of 304 Stainless Steel Pipe Fittings

ASTM A403 WP304 Fittings Available Types

Butt Weld 90 Degree Elbow

Butt Weld 45 Degree Elbow

Butt Weld Bend

Butt Weld Tee

Butt Weld Cross

Butt Weld Concentric Reducer

Butt Weld Eccentric Reducer

Butt Weld Cap

Lap Joint Stub End

Application Areas

Petrochemical industry: used for connecting pipeline systems for transporting various oil and gas, chemical raw materials and products, and pipeline connections in refineries and chemical plants.

Food and beverage industry: used to connect pipelines for transporting food and beverages in food processing, beverage production and other processes to ensure the hygiene and safety of products.

Medical and health industry: used for connecting pipeline systems in the fields of pharmaceuticals and medical device manufacturing to ensure the sterility and hygiene of drugs and medical devices.

Construction field: used to connect stainless steel pipes in building water supply and drainage, HVAC and other systems to ensure the normal operation of the pipeline system.

Stainless Steel 304 Forged Pipe Fittings

Stainless steel 304 forged pipe fittings refer to pipe fittings made of stainless steel materials and processed into specific shapes and sizes through forging processes. During the forging process, the metal billet undergoes plastic deformation under pressure, making its internal structure denser, thereby improving the strength and performance of the pipe fittings.

ASTM A182 F304 Specification

Stainless Steel 304 Pipe Fittings Chemical Composition

Mechanical Properties of F304 Stainless Steel Pipe Fittings

Socket Weld Pipe Fittings Types

Socket Weld Cap

Socket Weld Elbow

Socket Weld Tee

Socket Weld Cross

Socket Weld Coupling

Socket Weld Union

Advantages of Stainless Steel Socket Weld Pipe Fittings

No welding required: Compared with traditional welded pipe fittings, stainless steel socket weld pipe fittings do not require complicated welding operations during installation. This not only saves the cost of using welding equipment and professional welders, but also greatly shortens the installation time.

Easy to adjust: During the installation of the pipeline system, it is inevitable that the pipeline position will deviate or the pipeline needs to be fine-tuned. The connection method of Stainless steel 304 pipe fittings makes it very convenient to adjust the pipeline. Only a slight adjustment of the insertion depth or angle of the pipeline can meet the installation requirements, unlike welded pipe fittings, which are difficult to adjust once welding is completed.

Reasonable sealing structure design: Stainless steel socket weld pipe fittings usually adopt special sealing structures, such as rubber sealing rings. This sealing structure can effectively prevent medium leakage and maintain good sealing performance even under harsh working conditions such as high pressure, high temperature or vibration.

Strong corrosion resistance: Stainless steel itself has excellent corrosion resistance and can resist the erosion of a variety of chemicals. Stainless steel 304 pipe fittings are made of stainless steel, so that they can operate stably for a long time in various corrosive environments and are not easy to rust or corrode.

Threaded Pipe Fittings Types

Threaded Elbow

Threaded Tee

Threaded Cross

Threaded Coupling

Threaded Cap

Threaded Union

Threaded Nipple

Threaded Hex Nipple

Threaded Swage Nipple

Threaded Plug

Threaded Bushing

Advantages of stainless steel threaded pipe fittings

Reliability of threaded connection: Stainless steel threaded pipe fittings connect pipes through the screwing of threads, and the mutual engagement between threads provides greater connection strength and stability. During the operation of the pipeline system, it can withstand high pressure and tension, and is not prone to loosening, falling off, etc.

Convenient multiple disassembly and installation: Unlike welded pipe fittings, stainless steel threaded pipe fittings are very convenient when they need to be disassembled and reinstalled. Just use the corresponding tools to unscrew the pipe fittings, and no damage will be caused to the pipes and fittings.

Unified standards and specifications: The thread size and specifications of stainless steel threaded pipe fittings follow international or national relevant standards and have good versatility. This means that the threaded pipe fittings produced by different manufacturers are basically the same in size and connection method, and can be replaced and used in conjunction with each other.

Applicable to a variety of pipe materials: Threaded pipe fittings are not only suitable for the connection of stainless steel pipes, but also can be connected to pipes of other materials (such as carbon steel, copper, plastic, etc.). As long as the outer diameter and thread specifications of the pipe match the pipe fittings, the connection can be achieved.

What is the difference between 304 and 316 stainless steel pipe fittings?

Type 304 stainless steel contains chromium and nickel and is low in carbon, making it the most versatile and widely used austenitic stainless steel. Type 304 stainless steel is resistant to oxidation and corrosion.

Type 304 stainless steel is easy to fabricate and clean, prevents product contamination, and is available in a variety of surface finishes. Type 304 stainless steel is used for housings, tanks, pressure vessels, and piping.

Type 316 stainless steel is an austenitic chromium-nickel stainless steel and heat-resistant steel that resists corrosion better than other chromium-nickel steels when exposed to a variety of chemical corrosives.

Although the properties of stainless steel alloy 316 are at a significantly higher level, the addition of molybdenum in its alloy increases the price as well. While comparing the price of both metals, grade 304 would cost lesser simply, because of the absence of molybdenum in its alloy.