904L stainless steel pipes are specifically designed to offer exceptional corrosion resistance in highly corrosive environments. Here are some features and benefits of 904L stainless steel pipes:

• Corrosion Resistance: 904L stainless steel is highly resistant to corrosion in a wide range of aggressive environments, including sulfuric acid, phosphoric acid, and chloride-containing media. This makes it ideal for applications in industries such as chemical processing, pharmaceuticals, petrochemicals, and offshore oil and gas.
• Acid Resistance: 904L stainless steel exhibits superior resistance to both reducing and oxidizing acids, including sulfuric acid, nitric acid, and hydrochloric acid. It can withstand high concentrations and temperatures of these acids, making it suitable for acid processing and storage applications.

904L Stainless Steel Pipe Supplier

904L Stainless Steel Pipe Factory in China

• Pitting and Crevice Corrosion Resistance: The high levels of chromium, nickel, and molybdenum in 904L stainless steel provide excellent resistance to pitting and crevice corrosion. This makes it highly reliable in environments where these types of corrosion are prevalent, such as seawater and chloride-rich environments.
• High Strength: 904L stainless steel offers high mechanical strength, allowing it to withstand high-pressure conditions and external loads. It provides structural integrity and durability in demanding applications.

China 2904L Stainless Steel Pipe Factory

China 200 Series Stainless Steel Pipe

• Temperature Resistance: 904L stainless steel can maintain its mechanical properties and corrosion resistance at elevated temperatures, making it suitable for high-temperature applications. It exhibits good thermal stability and can handle thermal cycling without significant degradation.
• Low Carbon Content: The low carbon content in 904L stainless steel minimizes carbide precipitation during welding, reducing the risk of intergranular corrosion. This makes it easier to fabricate and weld the pipes while maintaining their corrosion resistance.

The factory quality inspector is helping the customer to measure the outer diameter of the pipe purchased by the customer.

• Uniformity and Consistency: 904L stainless steel pipes manufactured according to industry standards offer uniformity and consistency in their dimensions, tolerances, and material properties. This ensures compatibility and interchangeability in various applications.
• Versatility: 904L stainless steel pipes are available in various sizes, thicknesses, and configurations to meet different application requirements. They can be customized to fit specific installation needs, offering flexibility in design and installation.

Hardness measurement of stainless steel pipe

Hardness measurement of stainless steel pipe

• Longevity and Low Maintenance: Due to its exceptional corrosion resistance, 904L stainless steel pipes have a long service life and require minimal maintenance. They can withstand harsh environments and corrosive substances, reducing the need for frequent replacements and repairs.
• Wide Application Range: 904L stainless steel pipes find applications in industries where corrosion resistance is critical, such as chemical processing, oil and gas, pharmaceuticals, pulp and paper, and desalination plants. They are also used in heat exchangers, seawater systems, and other high-corrosion environments.

Wall Thickness Measurement of Stainless Steel Tubes

Manual inspection of inner wall of stainless steel pipe

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1. Hot Extrusion: Hot extrusion is a commonly employed method for manufacturing 904L stainless steel pipes. In this process, a heated stainless steel billet is forced through a die to form a seamless pipe. Hot extrusion ensures a uniform and dense structure with excellent mechanical properties.
2. Cold Drawing: Cold drawing is another method used for producing 904L stainless steel pipes. It involves pulling a stainless steel tube through a series of dies to reduce its diameter and wall thickness. Cold drawing enhances dimensional accuracy and surface finish while maintaining the material’s properties.
3. Pilgering: Pilgering is a cold rolling process used to manufacture precision seamless stainless steel pipes, including those made of 904L. It involves feeding a heated stainless steel billet through a pair of tapered rollers that gradually reduce the diameter and wall thickness of the pipe. Pilgering ensures tight tolerances, improved surface finish, and enhanced mechanical properties.
4. Welded and Cold Worked: For certain applications, 904L stainless steel pipes can be manufactured by welding and subsequently cold working the pipe. Welded pipes are formed by joining stainless steel sheets or plates using welding techniques such as TIG (Tungsten Inert Gas) or laser welding. The welded pipes are then cold worked to achieve the desired dimensions and mechanical properties.
5. Hydroforming: Hydroforming is a process that utilizes hydraulic pressure to form stainless steel pipes, including 904L, into complex shapes. It involves placing a stainless steel tube inside a die and applying high-pressure hydraulic fluid to expand and shape the tube. This method can be used for manufacturing 904L stainless steel pipes with intricate geometries.

904L stainless steel is a high-alloy austenitic stainless steel known for its exceptional corrosion resistance, particularly in aggressive environments. Here are some common applications for 904L stainless steel pipes:

1. Chemical and Petrochemical Industry: 904L stainless steel pipes are extensively used in the chemical and petrochemical industry, especially in environments containing sulfuric acid, phosphoric acid, and other corrosive chemicals. They are employed in equipment such as reactors, storage tanks, piping systems, and heat exchangers.
2. Oil and Gas Industry: 904L stainless steel pipes find application in the oil and gas industry, particularly in offshore and onshore environments where corrosive conditions are present. They are used in pipelines, platforms, and other equipment exposed to seawater, chloride-rich environments, and corrosive gases.
3. Desalination Plants: 904L stainless steel pipes are commonly used in desalination plants for the production of fresh water from seawater. They exhibit excellent resistance to corrosion and pitting in high-salinity environments, making them suitable for seawater intake, brine discharge, and other desalination processes.
4. Pharmaceutical Industry: The pharmaceutical industry requires materials with high corrosion resistance and purity. 904L stainless steel pipes are utilized in pharmaceutical manufacturing equipment, including reactors, storage vessels, and piping systems, to handle aggressive chemicals and maintain product integrity.
5. Food and Beverage Industry: 904L stainless steel pipes are employed in the food and beverage industry for their resistance to corrosion and ability to meet hygiene standards. They are used in processing equipment, storage tanks, and piping systems for handling corrosive food substances and maintaining product purity.
6. Power Generation: 904L stainless steel pipes find application in power generation plants, including thermal power plants and nuclear power plants. They are used in heat exchangers, condenser tubes, and other components that come into contact with corrosive cooling water or steam.
7. Seawater Applications: Due to its excellent resistance to corrosion in seawater, 904L stainless steel pipes are used in various marine and offshore applications. This includes seawater intake and discharge systems, offshore structures, and seawater cooling systems.
8. Environmental and Waste Management: 904L stainless steel pipes are utilized in environmental and waste management applications, such as wastewater treatment plants and industrial waste processing. They offer resistance to corrosive chemicals and acids present in these environments.

Stainless steel pipes and tubes need to be packaged carefully to avoid any damage during transportation and handling. Here are some common ways in which stainless steel pipes are packaged:

• Bundles: Stainless steel pipes are often bundled together, with each bundle containing a specific number of pipes. They can be bundled with steel strips or plastic bands for secure transportation.

• Plastic Caps: The ends of the pipes may be covered with plastic caps to protect them from dust, moisture, and other foreign materials. This is particularly important for threaded or precision-cut ends, which need to be kept clean and undamaged.
• Wrapping: The pipes can be wrapped in plastic sheets or waterproof paper to protect against moisture, especially for long-term storage or for shipping in wet conditions.
• Padding: For certain applications or for precision-made pipes, padding material like foam or straw might be used within the package to prevent any damage or scratches on the pipe surfaces during transportation.

• Wooden Boxes or Crates: For higher-grade stainless steel pipes or for pipes that require extra protection, they may be packed in wooden boxes or crates. This provides additional protection against physical damage during shipping and handling.