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China 904L Super Austenitic Stainless Steel Industrial Seamless Pipes - Top Suppliers & Factory Quality
Chemical composition
Chromium (Cr): 19-23%
Nickel (Ni): 14-16%
Molybdenum (Mo): 4-5%
Copper (Cu): 1.0-2.0%
Nitrogen (N): 0.18-0.25%
Carbon (C): ≤0.03%
Manganese (Mn): ≤2.0%
Silicon (Si): ≤1.0%
Phosphorus (P): ≤0.045%
Sulfur (S): ≤0.030%
Characteristic
Corrosion resistance
904L stainless steel has excellent resistance to pitting, crevice corrosion and stress corrosion cracking. It is suitable for a variety of corrosive environments, including seawater, acidic environments and media containing chlorides.
Mechanical properties
904L stainless steel has good mechanical properties, including high strength and toughness.
Weldability
904L stainless steel has good welding performance and can be welded by a variety of welding methods.
Processability
904L stainless steel has good processing performance and can be processed cold and hot.
Application area
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Chemical and petrochemical industry: Used in the manufacture of reactors, heat exchangers, valves and pumps.
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Food and beverage industry: Used in the manufacture of food processing equipment and containers.
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Marine engineering: Used in the manufacture of seawater desalination equipment, ship components and submarine pipelines.
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Pulp and paper industry: Used to manufacture pulp and paper equipment.
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Energy industry: Used to manufacture components for nuclear power plants.
Frequently Asked Questions
What are the primary chemical components of 904L stainless steel?
904L is composed primarily of Chromium (19-23%), Nickel (14-16%), and Molybdenum (4-5%), with additions of Copper and Nitrogen to enhance its properties.
Is 904L stainless steel resistant to seawater?
Yes, 904L has excellent resistance to pitting and crevice corrosion, making it highly suitable for marine engineering and seawater desalination equipment.
What makes 904L suitable for the chemical industry?
Its exceptional resistance to stress corrosion cracking and acidic environments makes it ideal for manufacturing reactors, heat exchangers, and valves used in petrochemical processes.
Can 904L stainless steel be easily welded?
Yes, 904L stainless steel demonstrates good welding performance and is compatible with a variety of standard welding methods.
How is the processability of 904L stainless steel?
904L offers good processing performance, allowing it to be effectively handled through both cold and hot processing techniques.
What are the mechanical advantages of using 904L?
It provides high strength and toughness, ensuring durability in demanding applications like nuclear power plants and submarine pipelines.