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310MoLN seamless pipe is a type of high-alloy austenitic stainless steel pipe known for its exceptional corrosion resistance, particularly in highly aggressive environments. It is primarily used in the chemical and petrochemical industries.The designation 310MoLN refers to the specific steel grade, which is also commonly identified by:
UNS S31050
EN 1.4466
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SEAMLESS PIPE TP310MOLN is a high-alloy austenitic stainless steel designed for demanding applications, particularly in environments requiring superior corrosion resistance and high-temperature stability.
Here is an introduction to its features and applications:
The chemical composition of 310MoLN is highly optimized, particularly with high levels of chromium, nickel, molybdenum, and a significant addition of nitrogen, which stabilizes the fully austenitic structure and enhances corrosion resistance and mechanical strength.
| Grade | C | Mn | Cr | P | S | Mo | Ni | Nitrogen | Si | Iron |
| TP310MOLN | ≤0.025 | ≤2.00 | 24.00-26.00 | ≤0.020 | ≤0.015 | 1.60-2.60 | 20.50-23.50 | 0.09-0.15 | ≤0.40 | Balance |
Chemical Composition:
Carbon ©: 0.02%
Manganese (Mn): 2.00%
Chromium (Cr): 24.00-26.00%
Phosphorus (P): 0.025%
Sulfur (S): 0.01%
Molybdenum (Mo): 2.00-2.50%
Nickel (Ni): 21.00-23.00%
Nitrogen (N): 0.10-0.16%
Silicon (Si): 0.70%
Iron (Fe): Balance
Mechanical Properties:
Tensile Strength (Mpa): 540-740
Yield Strength (Mpa): 250
Elongation (%): 40
Brinell Hardness: 95
Corrosion Resistance:
The TP310MOLN 1.4466 S31050 is known for its excellent resistance to corrosion, particularly in urea carbamate environments. This makes it ideal for use in high-pressure strippers in urea plants.
The high nitrogen content in its chemical composition helps stabilize and strengthen the austenitic phase, enhancing its resistance to intergranular corrosion.
High-Temperature Performance:
This steel maintains its strength and oxidation resistance at high temperatures, making it suitable for applications in furnaces, burners, and conveyor systems.
Manufacturing Standards:
The pipes are manufactured according to various international standards, including ASTM A213, ASTM A249, ASTM A269, EN10216-5, GOST 9940, and GOST 9941, ensuring high quality and reliability.
310MoLN stainless steel, also known as UNS S31050, is a fully austenitic stainless steel with optimized properties for specific applications. Let’s explore its characteristics and where it finds use in various industries:
Urea Plants:
310MoLN is specifically designed for applications in urea plants.
It provides improved corrosion resistance in urea carbamate environments, such as high-pressure strippers.
The nitrogen content in its chemical composition helps stabilize and strengthen the austenitic phase.
Chemical Processing:
Due to its excellent corrosion resistance, 310MoLN is used in chemical processing equipment.
It performs well in aggressive chemical environments, including acids and chlorides.
High-Temperature Applications:
310MoLN is suitable for high-temperature environments.
It finds use in furnace components, such as burners, retorts, and conveyor belts.
Petrochemical Industry:
In petrochemical plants, 310MoLN is employed for tube hangers.
Its resistance to oxidation and high-temperature strength are advantageous.
Mineral Equipment and Cement Production:
Used in mineral processing equipment and cement production due to its high strength at elevated temperatures.
Remember that 310MoLN stainless steel offers a unique combination of properties, making it valuable in critical applications.
End of Pipe and Tube
Ply Wooden Boxes
PE Fabric Bundles
Standard seaworthy export packing
Plastic Bags, or as required
Marking
Supplier / Manufacturer Name or Custom Logo - on request
Specification
Material Grade
Nominal Size
Schedule or Wall Thickness
Method of Manufacturing (Seamless or Welded)
Heat Number
Marked Pipe Sample: XTD ASTM A312 S31050 SEAMLESS 42.2x 3.56*6000MM HEAT NO. 2023121205A15
Packing
Ply Wooden Boxes
PE Fabric Bundles
Standard seaworthy export packing
Plastic Bags, or as required
Delivery Condition
Pickled&Annealed, Polished, Bright Annealed.
All tubes shall be supplied as per applicable ASTM B163 /B426
Mill test certificates will be issued
We can provide 3.2 Certification according to the needs of you
Standard
ASTM A312: Standard Specification for Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes
ASTM A213: Standard Specification for Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes
310moln stainless steel grade is a fully austenitic stainless steel that does not have intermetallic phases such as intergranular carbide precipitations.
For applications in urea plants 310MoLN steel grade has a specififically designed optimized chemical composition. To stabilize and strengthen the austenitic phase the nitrogen in the chemical composition helps.
310 MoLN, material gives excellent corrosion-resistance in urea carbamate environments such as high-pressure strippers. Among wrought austenitic stainless steels it has a fairly high base cost. And it has a fairly high embodied energy and a fairly low ductility.
High-nickel austenitic stainless steel for parts and components of chemical apparatus used mainly in the production of urea. The grade is suitable for working at elevated temperatures. 1.4466 steel is used in the paper, nitrogen, pharmaceutical, petrochemical and cellulose industries.
