UNSS31803 is a high-performance duplex stainless steel widely used in various industrial fields.Chinese brand：00Cr22Ni5Mo3N，F51. Below is a detailed introduction to this material:
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Chemical Composition:
– Extremely low carbon content, usually not exceeding 0.030%, which helps to improve weldability and corrosion resistance.
– Chromium content between 21.00% and 23.00%, a key element that gives stainless steel its “stainless” characteristics.
– Nickel content ranging from 4.50% to 6.50%, which enhances the toughness and ductility of the material.
– Molybdenum content between 2.50% and 3.50%, which increases resistance to pitting and crevice corrosion.
– Nitrogen content from 0.08% to 0.20%, which strengthens the material’s strength and resistance to chloride stress corrosion.
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Mechanical Properties:
– Yield strength is higher than many traditional austenitic stainless steels, about double theirs.
– Possesses excellent tensile strength and elongation, ensuring good formability and malleability.
– Maintains good mechanical properties at high temperatures, suitable for various extreme conditions.
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Application Fields:
– Due to its outstanding resistance to chloride stress corrosion cracking, it is particularly suitable for salt-containing environments, such as marine engineering, desalination equipment, etc.
– In the oil and gas industry, it is used for pipelines, valves, and other critical components, as it can withstand high pressures and harsh environments.
– In the chemical industry, it is used for reactors and storage tanks that handle various chemicals, especially in applications requiring resistance to high temperatures and strong acids and bases.
– In the papermaking and food processing industries, it is used to manufacture equipment and containers that come into contact with food or chemicals, ensuring product safety and hygiene.
In summary, UNS S31803 duplex stainless steel plays a significant role in various industries with its exceptional chemical and physical properties. Whether in demanding chemical environments or ordinary structural applications, it demonstrates extraordinary performance and is an indispensable material in modern industry.
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With a strong global presence and a reputation for excellence, CANGZHOU NFI STEEL CO., LTD stands out as a reliable partner for any pipeline-related endeavor, ensuring efficient, safe, and sustainable solutions for clients worldwide.Our company has a significant advantage in the production of flanges. The UNS S31803 we produce is of high quality and competitively priced. Welcome to negotiate with colleagues from all walks of life.
