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UNS S31050 - EN 1.4466

UNS S31050 - EN 1.4466

S31050 stainless steel is a fully austenitic stainless steel with no intermetallic phases, such as intergranular carbide precipitation. It exhibits excellent corrosion resistance, along with a high internal energy and low ductility.

Equivalent grades

• UNS S31050
• DIN 1.4466
• AISI 310 MoLN
• X1CrNiMoN25-22-2

Chemical Composition Reference


Physical Property Reference

• Density: 8.0 kg/m³

• Tensile Strength: 630 MPa

• Yield Strength: 250 MPa

• Modulus of Elasticity: 195 GPa

• Thermal 100°C: 15.7 10-6/°C

• Thermal Conductivity: 14 W/m°C

Stock & Dimensions

Our warehouse has a large number of stock to provide you with a variety of products in different sizes, and can also customize the size according to your needs.
• Bar: 0.5~600mm Diameter
• Coil: 0.5~150mm Thick
• Plate: 0.5~200mm Thick
• Pipe: 6~630mm External Diameter; 0.5~40mm Wall Tick
• Available in specific sizes

Product Forms

We provide you with a variety of product forms, including but not limited to:
• Bar/Rod
• Pipe/Tube
• Coil/Strip
• Plate/Sheet/Circle
• Wire
• Fitting (Flange, Elbow, Tee...)
• Customize

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UNS S31050 - EN 1.4466

Essential details
UREA 1.4466 chemical composition has been optimised for specific uses in Urea plants. It is a 310L modified austenitic stainless steel with low carbon, low silicon and high nitrogen additions in order to stabilize and strengthen the austenitic phase.

The alloy is particularly designed for improved corrosion resistance properties in urea carbonate environments including strippers. The grade is also well designed for resistance in wet corrosive conditions due to its high contents of chromium, molybdenum and nitrogen (PREN > 33). UREA UNS S31050 is designed for the fabrication of lining interiors in Urea units or complementary products (pipes, fittings…). The grade can be used for urea strippers.

Typical Applications:

- Urea applications

- Pulp & Paper industry

- Flue gas cleaning

- Chemical industry

- Pharmaceutical industry

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