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What is the difference between 904L stainless steel pipe and 310S stainless steel pipe?

When it comes to selecting the right stainless steel pipe for your project, choosing between 904L and 310S can be a tough decision.

Both materials have unique properties and advantages, but it is important to understand the differences between them to make a well-informed choice.


904L Stainless Steel Pipe


904L stainless steel is an austenitic stainless steel with a low carbon content.

It has excellent resistance to corrosion and is highly resistant to stress corrosion cracking in chloride environments.

The material also has good weldability and formability, making it an ideal choice for various applications, such as chemical processing, oil and gas, and marine engineering.


One of the key advantages of 904L stainless steel is its high nickel content, which helps to enhance its resistance to pitting and crevice corrosion.

This material is also known for its high strength and durability, making it suitable for use in harsh environments.


310S Stainless Steel Pipe


310S stainless steel is another popular choice for high-temperature applications.

It is an austenitic stainless steel with a high chromium and nickel content, which makes it highly resistant to oxidation and corrosion at high temperatures.

This material is ideal for use in thermal processing, power generation, and petrochemical industries.


One of the key advantages of 310S stainless steel is its ability to withstand extreme temperatures without losing its strength and durability.

It also offers excellent corrosion resistance, making it ideal for use in harsh chemical environments.


Differences


While both materials offer excellent corrosion resistance and high strength, there are some key differences to consider when choosing between 904L and 310S stainless steel pipes.


Temperature range


310S stainless steel has a higher temperature range than 904L stainless steel.

It can withstand temperatures up to 1150°C, whereas 904L stainless steel can only withstand temperatures up to 400°C.


Resistance to corrosion


While both materials offer good resistance to corrosion, 904L stainless steel has a higher resistance to pitting and crevice corrosion in chlorinated environments.

310S stainless steel is highly resistant to oxidation and corrosion at high temperatures, but may not be as effective in chloride-rich environments.


Cost


904L stainless steel is generally more expensive than 310S stainless steel, due to its higher nickel content and other elements.

In conclusion, choosing between 904L and 310S stainless steel pipes will depend on your specific project requirements.

Consider factors such as temperature range, resistance to corrosion, and cost to make an informed decision that will result in a high-quality and long-lasting finished product.

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