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AISI 317Ln Stainless Steel Chemical Properties, Grades, Table and Online Pdf

AISI 317LN is a carbon-practical, nitrogen-boosted alloy of austenite stainless steel, developed for a higher strength and corrosion resistance at increased temperatures. Generally known for its chemical composition that often consists of chromium, nickel, molybdenum, and nitrogen, grade 904L is backed with excellent resistance towards various acid-alkaline solutions and chloride-containing media. Processes and weldability of 317LN is high, hence this material is great for such industries as chemical processing, pharmaceuticals, food process industries and it is also used in pulp and paper industries. The table and PDF file provide a thorough specification of the mechanical properties, corrosion resistance, and the fabrication standard which will facilitate engineers and designers in the choice of the corresponding material. The 316 grade of stainless steel is credited for its dependability and quality ability to withstand adversities. The performance of your investment is not hampered and minimizes the expenditure for maintenance.

AISI 317Ln Austenitic Stainless Steel Chemical Composition And Grade Table

AISI 317LN, the common name of the austenitic stainless steel with excellent corrosion resistance, as well as high strength at elevated temperatures, became known for this two properties. It is made of a chemical composition comprising 18-20% of chromium, 11-15% of nickel and 3-4% of molybdenum as well as other trace elements like carbon, manganese, phosphorus, sulfur, silicon, and nitrogen. This alloy brings the property of superb corrosion resistance in many environments such as acidic and chloride-containing ones. One major application of AISI 317LN is in chemical processing, pharmaceuticals, pulp and paper, as well as food processing wherein corrosion resistance and durability takes a center stage.

AISI 317Ln Austenitic Stainless Steel
Elements Fe Cr Ni Mo Mn Si N P C S
Min (%) 57.9 18 11 3.0 - - 0.1 - - -
Max (%) 67.9 20 15 4.0 2.0 0.75 0.22 0.045 0.030 0.030

The Advantages and Disadvantages of AISI 317Ln Austenitic Stainless Steel

    Advantages:

  • Excellent Corrosion Resistance: AISI 317LN stainless steel exhibits excellent corrosion properties in various corrosive environments, including acidic and alkaline media, and chloride-containing solutions.

  • High Temperature Performance: It does not undergo any change in mechanical properties and corrosion resistance at high temperatures, thus suitable for chemical processing and exhaust systems.

  • Superior Weldability: AISI 317LN has good weldability, this means that it can be easily fabricated and constructed in various industries while maintaining its corrosion resistance properties.

  • Enhanced Strength: AISI 317LN has greater Nitrogen and Molybdenum content than other austenitic grades like 304 and 316, which enhances its strength and toughness.

  • Low Maintenance: Since it is less likely to corrode and stain, AISI 317LN needs minimal maintenance, thus cutting on the costs of time and money that would be used in the maintenance.

    Disadvantages:

  • Cost: AISI 317LN stainless steel can be expensive than the standard austenitic grades because of the alloying elements that it possesses.

  • Sensitization Risk: This can cause sensitization which lowers the alloys resistance to corrosion in specific conditions. This risk can be reduced through the appropriate heat treatment and welding practices.

  • Limited Availability: AISI 317LN may be less readily available than other types of stainless steel and this may be problematic in terms of procurement of materials for particular applications.

  • Potential Embrittlement: Nevertheless, when cold worked to excess or heat treated incorrectly, AISI 317LN can become brittle and degrade its mechanical properties.

  • Surface Contamination: Carbon steel tools or equipment used during fabrication of AISI 317LN can cause contamination and affect the corrosion resistance of the alloy and therefore proper handling and control of the fabrication process is recommended.

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Frequently Asked Questions

FAQs
What are the chemical compositions of AISI 317LN stainless steel?

AISI 317LN stainless steel is an austenitic material that has chromium, nickel, molybdenum, and nitrogen in it and highly resistant to corrosion and possesses good strength in various conditions.

Which industries can use AISI 317LN stainless steel?

AISI 317LN is commonly used where there is exposure to aggressive chemicals and this makes it ideal for use in chemical processing, production of pulp and paper, and the production of pharmaceuticals.

Is AISI 317LN stainless steel weldable?

Yes, AISI 317LN can be welded using conventional techniques for welding, where GTAW and SMAW methods of welding can be adopted provided certain measures are taken so that the material does not get sensitized and loses its corrosion resistance.

What is the temperature range for the use of AISI 317LN?

AISI 317LN stainless steel has excellent performance for both high and low temperatures with temperature range for service from cryogenic to about 1000 °C (1832 °F).

Raw Material Prices (Updated as on: 27 Jul 2024 02:29 AM) LIVE RATES

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Stainless Steel
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