HR CR Seamless Stainless Steel Pipe Tube SS Pipe DIN 1.4539 / 904L SS Pipes

HR CR Seamless Stainless Steel Pipe Tube SS Pipe DIN 1.4539 / 904L SS Pipes

904L Stainless Steel Pipe – A Premium Quality Option for Industrial Use

As a manufacturer in China, I would like to introduce the premium quality 904L stainless steel pipe to merchants outside of China. Our 904L stainless steel pipes are of top-notch quality, which can be used for industrial as well as other engineering purposes. We follow all the necessary production standards to promise a product that meets every quality specification required in the market. In this article, we will discuss the many aspects of our 904L stainless steel pipes, including the composition, properties, and benefits, which make these products highly attractive for industrial use.

1. Composition of 904L Stainless Steel Pipe

904L stainless steel pipe is made of a higher proportion of alloying elements. These elements include chromium, nickel, and molybdenum, enhanced with copper to make it highly resistant to corrosion in aggressive environments. Among these metals, the presence of molybdenum provides 904L stainless steel pipes with better resistance to crevice corrosion, stress cracking, and pitting. The copper content in the pipe plays a critical role in providing additional resistance and making the pipe more weldable and ductile than other austenitic stainless steel pipes.

2. Properties of 904L Stainless Steel Pipe

904L stainless steel pipes are known for their superior mechanical, chemical, and physical properties. Compared to other stainless steel pipes, 904L pipes have higher resistance to acids, alkalis, and chloride solutions, making it an ideal choice for applications that require corrosion resistance, such as in the chemical process industry. The pipes can endure a wide range of temperatures and pressures, making them highly suitable for oil and gas production applications.

The strength, ductility, and toughness of 904L stainless steel pipes are superior to those of other stainless steel pipes. Moreover, the pipes have less thermal expansion, providing it with better mechanical properties over a broad range of temperatures, making it a perfect choice for cryogenic applications.

3. Benefits of Using 904L Stainless Steel Pipe

Higher Resistant to Corrosion - 904L stainless steel pipes have high levels of chromium making them highly resistant to pitting, crevice corrosion, and stress cracking, which is a common problem encountered in high chloride environments.

Weldability - The presence of copper in 904L stainless steel pipes makes them highly weldable, making them ideal for use in weld-intensive applications.

Durability - 904L stainless steel pipes have superior mechanical properties that make them highly durable, providing customers with a reliable product that lasts longer without showing signs of wear and tear.

Cost Savings - Though 904L stainless steel pipes are slightly more expensive than other stainless steel pipes on the market, they offer significant cost savings over time, thanks to their long-lasting and corrosion-resistant properties.

4. Standards Compliance

At our factory in China, our production process, including the composition of materials, follows strict quality standards. Our 904L stainless steel pipes come in various dimensions and sizes, all produced from high-quality raw materials, ensuring compliance with the highest quality standards.

5. Applications

Our 904L stainless steel pipes are highly versatile and can be used in a wide range of applications, including Oil & Gas, Chemical processing, Pharmaceutical, Pulp and Paper, Sea Water, Marine, Food Industry, and Architecture.

904L is a highly alloyed, low carbon containing, non-stabilized austenitic stainless steel grade. Copper has been added to the alloy of 904L Stainless Steel Pipe. Hence, its resistance to strong reducing acids such as sulfuric acid is very high. The lower content of carbon makes it easier to produce the AISI 904L Welded Pipe according to specification ASTM A312. Though the content of carbon is lower, these pipes could be used for high temperature applications. The significant inclusion of nickel to the alloy of ASME SA 312 TP904L makes it possible for the pipes to have an outstanding performance even in elevated settings. Along with being a non-magnetic alloy, the Stainless Steel 904L Pipe also exhibits good resistance to stress related corrosion cracking. The presence of molybdenum in the alloy reduces the occurrence of crevice corrosion. Along with being used in applications between moderate to high temperatures, the ASTM A312 TP904L is primarily useful for general corrosion applications.

Mechanical tests like a transverse or longitudinal tension test as well as a flattening test are conducted on the 904L Seamless Pipe to determine its conformance to the tensile properties. Keeping in accordance with ASTM A312 every 904L Pipe must be furnished in a heat-treated condition, with the appropriate heat treatment temperature and fundamentals with regards to cooling or testing.

Available tube product forms

• Straight Pipes
• Coiled Tubes
• Seamless Pipes

Typical Applications

• Seawater cooling equipment
• Chemical processing for sulphuric, phosphoric and acetic acids
• Gas washing
• Condenser tubes
• Control and instrumentation
• Heat exchangers

Typical manufacturing specifications

• ASTM A213
• ASTM A269
• ASTM A312
• BS EN 10216 pt.5

Also individual customer specifications.

Industries predominantly using this grade

• Chemical processing
• Oil and gas
• Pharmaceutical