ASME SA240 Gr 317LMN (S31726) Stainless Steel Sheet

SA240 Gr 317LMN (S31726) Stainless Steel Plate Supplier | Specifications, Equivalent Materials, and Price

When your project demands a material that delivers exceptional corrosion resistance and enhanced strength in aggressive acidic and chloride-rich environments, SA240 Gr 317LMN (S31726) stainless steel plate is an ideal choice. Supplied by Gangsteel, a leading stainless steel supplier in China, this nitrogen-enhanced, low-carbon austenitic stainless steel is renowned for its superior SA240 Gr 317LMN corrosion resistance in sulfuric acid, seawater, and chloride-heavy conditions, making it perfect for chemical processing, pulp/paper, and marine applications.

Gangsteel offers SA240 Gr 317LMN stainless steel plate, sheet, bar, and custom components, meeting ASME SA240 and ASTM A240 standards.

This page provides detailed insights into the SA240 Gr 317LMN chemical composition, mechanical properties, equivalent materials, specifications, applications, and competitive SA240 Gr 317LMN price per kg. Explore our ASME SA240 stainless sheet portfolio for related grades like SA240 Gr 317LM, SA240 Gr 904L, and SA240 Type 2205.

1. What is SA240 Gr 317LMN (S31726)?

SA240 Gr 317LMN, also known as UNS S31726, is a low-carbon, molybdenum- and nitrogen-enhanced austenitic stainless steel with 17.0-20.0% chromium, 13.0-17.5% nickel, 4.0-5.0% molybdenum, and 0.10-0.20% nitrogen. This composition provides superior corrosion resistance, particularly in acidic and chloride-rich environments, along with improved strength and pitting resistance compared to standard grades.

SA240 Gr 317LMN materialis ideal for applications requiring high corrosion resistance and weldability, such as chemical reactors, pulp/paper equipment, and marine systems. Compared to SA240 Gr 317LM, SA240 Gr 317LMN offers enhanced strength and corrosion resistance due to nitrogen alloying, with a pitting resistance equivalent number (PREN) of ~33-35.

Gangsteel’s SA240 Gr 317LMN stainless steel plate is engineered for industries needing robust performance in corrosive environments, providing a reliable alternative to grades like SA240 Gr 904L or SA240 Type 2507.

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2. SA240 Gr 317LMN Chemical Composition

The SA240 Gr 317LMN chemical composition, compliant with ASME SA240, is optimized for enhanced corrosion resistance, strength, and weldability.

Note: The high molybdenum and nitrogen content give SA240 Gr 317LMN a PREN of ~33-35, offering superior pitting resistance compared to SA240 Gr 317LM (PREN ~30-32) and SA240 Gr 316 (PREN ~24), while low carbon ensures excellent weldability.

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3. SA240 Gr 317LMN Mechanical Properties

The SA240 Gr 317LMN mechanical properties, tested per ASME SA240, provide a balance of strength, ductility, and corrosion resistance, making SA240 Gr 317LMN stainless steel plate ideal for demanding corrosive applications.

Note: Solution annealing at 1050-1150°C (1922-2102°F) optimizes UNS S31726 mechanical properties for corrosion resistance and strength. Contact Gangsteel for a detailed SA240 Gr 317LMN technical data sheet.

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4. SA240 Gr 317LMN Allowable Stress

The allowable stress values for SA240 Gr 317LMN, per ASME BPVC Section II, Part D, ensure reliable performance in corrosive environments.

Note: These values ensure SA240 Gr 317LMN material performs reliably in chemical reactors and pulp/paper equipment under moderate temperatures.

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5. SA240 Gr 317LMN Equivalent Materials

SA240 Gr 317LMNaligns with international standards for global compatibility.

Note: SA240 Gr 317LMN equivalent grades comply with ASME SA240, offering interchangeability with SA240 Gr 317LM in applications requiring less strength but similar corrosion resistance.

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6. SA240 Gr 317LMN vs SA240 Gr 317LM, SA240 Gr 904L, and SA240 Type 2205

Choosing the right material is critical to your project’s success. Here’s how SA240 Gr 317LMN compares to SA240 Gr 317LM, SA240 Gr 904L, and SA240 Type 2205:

• SA240 Gr 317LMN vs SA240 Gr 317LM: SA240 Gr 317LMN offers enhanced strength and corrosion resistance due to nitrogen alloying, while SA240 Gr 317LM is more cost-effective with similar corrosion resistance.
• SA240 Gr 317LMN vs SA240 Gr 904L: SA240 Gr 317LMN is more cost-effective with comparable pitting resistance, while SA240 Gr 904L excels in sulfuric acid environments due to copper content.
• SA240 Gr 317LMN vs SA240 Type 2205: SA240 Gr 317LMN provides better acid resistance and weldability, while SA240 Type 2205 offers higher strength for chloride-heavy environments.

Conclusion: Choose SA240 Gr 317LMN for enhanced strength and corrosion resistance in acidic environments, SA240 Gr 317LM for cost-effective corrosion resistance, SA240 Gr 904L for sulfuric acid applications, or SA240 Type 2205 for high-strength chloride environments.

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7. SA240 Gr 317LMN Specifications

Gangsteel provides SA240 Gr 317LMN stainless steel plate, sheet, bar, and custom components to meet your project’s needs:

7.1 Plate and Sheet

• Thickness: 0.5 mm to 100 mm (plate), 0.1 mm to 6 mm (sheet)
• Width: 1000 mm to 3000 mm
• Length: 2000 mm to 12000 mm (or coiled for sheet)
• Surface Finish: Hot-rolled, cold-rolled, annealed, pickled, 2B, No.1, or customized
• Standards: ASTM A240, ASME SA240
• Applications: SA240 Gr 317LMN plate for chemical reactors, UNS S31726 sheet for pulp/paper equipment

7.2 Bar

• Diameter: 6 mm to 500 mm
• Length: Up to 12000 mm
• Finish: Hot-rolled, cold-drawn, centerless ground
• Standards: ASTM A479, ASME SA-479
• Applications: SA240 Gr 317LMN bar for fittings and fasteners

7.3 Custom Components

• Types: Flanges (ASME B16.5), fittings, CNC-machined parts
• Tolerances: ±0.05 mm for precision components
• Applications: Tailored solutions for chemical and marine industries

Note: Need a specific size or finish? Gangsteel offers custom solutions, including annealing at 1050-1150°C. Contact us for bespoke SA240 Gr 317LMN material specifications.

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8. Applications of SA240 Gr 317LMN

SA240 Gr 317LMNis designed for industries facing aggressive corrosion challenges. Key SA240 Gr 317LMN applications include:

• Chemical Processing: SA240 Gr 317LMN stainless steel plate for reactors in sulfuric acid environments.
• Pulp and Paper: UNS S31726 plate for bleach plant equipment.
• Marine: SA240 Gr 317LMN sheet for seawater systems and shipbuilding components.
• Pharmaceutical: SA240 Gr 317LMN bar for high-purity fittings.
• Oil and Gas: Components for offshore platforms in chloride-rich conditions.

Note: Compared to SA240 Gr 317LM, SA240 Gr 317LMN offers enhanced strength and pitting resistance due to nitrogen alloying.

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9. Price of SA240 Gr 317LMN

The SA240 Gr 317LMN price per kg ranges from USD 9-16 per kg (FOB), influenced by:

• Alloy Content: High molybdenum (4.0-5.0%) and nitrogen (0.10-0.20%) increase costs compared to SA240 Gr 317LM.
• Market Demand: Demand in chemical and marine industries drives UNS S31726 price.
• Product Form: SA240 Gr 317LMN stainless steel plate may cost more than sheet due to processing complexity.
• Global Supply Chain: Freight and availability impact SA240 Gr 317LMN cost.

For a precise SA240 Gr 317LMN price per kg or bulk discounts, contact Gangsteel.

We’ll ensure you get the best value for your project.

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10. Related Stainless Steel Grades

Gangsteel offers a wide range of ASME SA240 stainless sheet grades to complement SA240 Gr 317LMN for various applications:

• SA240 Gr 317LM: Cost-effective corrosion resistance for acidic environments.
• SA240 Gr 904L: Superior sulfuric acid resistance for chemical applications.
• SA240 Type 2205: Balanced corrosion resistance for marine applications.
• SA240 Type 2304: Cost-effective for milder corrosive environments.
• SA240 Type 2507: Superior corrosion resistance for aggressive chloride environments.
• SA240 Type 255: Enhanced sulfuric acid resistance for chemical applications.
• SA240 Type 329: Duplex stainless steel for chemical and marine applications.
• SA240 Gr 334: High-temperature resistance for heating elements.
• SA240 Gr 347: Stabilized for high-temperature corrosion resistance.
• SA240 Gr 347H: Enhanced creep resistance for high-temperature applications.
• SA240 Gr 348: Low-cobalt for nuclear applications.
• SA240 Gr 348H: High-carbon for enhanced high-temperature strength.
• SA240 Gr 201: Cost-effective for general applications.
• SA240 Gr 202: General corrosion resistance for decorative uses.
• SA240 Gr 301: High strength for springs and fasteners.
• SA240 Gr 301L: Low-carbon for improved weldability.
• SA240 Gr 301LN: Nitrogen-enhanced for strength and weldability.
• SA240 Gr 302: General-purpose austenitic stainless steel.
• SA240 Gr 304: Versatile for food and general industries.
• SA240 Gr 304H: High-temperature strength for heat exchangers.
• SA240 Gr 304L: Low-carbon for weldability in corrosive environments.
• SA240 Gr 304LN: Nitrogen-enhanced for strength.
• SA240 Gr 304N: High strength for structural applications.
• SA240 Gr 305: High nickel for deep drawing applications.
• SA240 Gr 309CB: High-temperature corrosion resistance.
• SA240 Gr 309H: High-temperature strength for furnaces.
• SA240 Gr 309HCB: Enhanced high-temperature performance.
• SA240 Gr 309S: Corrosion resistance for high-temperature applications.
• SA240 Gr 310CB: High-temperature strength with columbium.
• SA240 Gr 310H: High-temperature resistance for furnaces.
• SA240 Gr 310HCB: Enhanced high-temperature performance.
• SA240 Gr 310MOLN: Nitrogen-enhanced for urea production.
• SA240 Gr 310S: High-temperature corrosion resistance.
• SA240 Gr 316: Excellent corrosion resistance for marine applications.
• SA240 Gr 316CB: Columbium-stabilized for weldability.
• SA240 Gr 316H: High-temperature strength for chemical processing.
• SA240 Gr 316L: Low-carbon for enhanced weldability.
• SA240 Gr 316LN: Nitrogen-enhanced for strength and corrosion resistance.
• SA240 Gr 316N: High strength for structural applications.
• SA240 Gr 316Ti: Titanium-stabilized for high-temperature weldability.
• SA240 Gr 317: High corrosion resistance for chemical processing.
• SA240 Gr 317L: Low-carbon for acidic environments.
• SA240 Gr 415: High strength for oilfield and turbine applications.

Note: These grades complement SA240 Gr 317LMN in chemical, pulp/paper, and corrosion-resistant applications. Contact Gangsteel for a full catalog to find the perfect material for your project.

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11. Why Choose Gangsteel?

At Gangsteel, we prioritize quality and reliability to ensure your project succeeds.

Our SA240 Gr 317LMN stainless steel plate is crafted to meet the highest industry standards, delivering exceptional performance in corrosive environments.

With a commitment to customer satisfaction, we offer:

• Quality Assurance: Every SA240 Gr 317LMN stainless steel plate complies with ASTM A240 and ASME SA240 standards, backed by EN 10204 3.1/3.2 certificates for complete confidence.
• Fast Delivery: Standard orders ship in 7-15 days, with expedited options to keep your project on schedule.
• Customization: Need a specific size or shape? We provide precision cutting (CNC, laser, waterjet), welding, and tailored heat treatments to meet your exact requirements.
• Global Supply: Serving clients in Saudi Arabia, UAE, India, Europe, and beyond, we ensure reliable delivery no matter where you are.
• Extensive Inventory: Explore our wide range of ASME SA240 stainless sheet grades, including SA240 Gr 317LM and SA240 Gr 904L.

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12. Conclusion

For projects requiring enhanced strength and superior corrosion resistance in acidic and chloride-rich environments, SA240 Gr 317LMN stainless steel plate from Gangsteel is your ideal solution.

Known as UNS S31726, its nitrogen-enhanced austenitic structure delivers exceptional performance for chemical reactors, pulp/paper equipment, and marine systems, offering improved strength over SA240 Gr 317LM and cost-effectiveness compared to SA240 Gr 904L.

Available in versatile specifications (0.5-100 mm thickness, up to 3000 mm width) and equivalent grades (W.Nr. 1.4439, EN X2CrNiMoN17-13-5), Gangsteel provides quality at a competitive SA240 Gr 317LMN price per kg (USD 9-16/kg).

Contact Gangsteeltoday for a quick quote on SA240 Gr 317LMN price per kg or to request a detailed UNS S31726 technical data sheet.

Browse our ASME SA240 stainless sheet portfolio to find the perfect solution for your corrosion-resistant needs!