ASME SA240 Gr 347 (S34700) Stainless Steel Sheet

SA240 Gr 347 (S34700) Stainless Steel Plate Supplier | Specifications, Equivalent Materials, and Price

When your project requires a material that combines excellent corrosion resistance with high-temperature stability, SA240 Gr 347 (S34700) stainless steel plate is an exceptional choice. Supplied by Gangsteel, a leading stainless steel supplier in China, this austenitic stainless steel, stabilized with columbium (niobium), is renowned for its superior SA240 Gr 347 corrosion resistance and resistance to intergranular corrosion in high-temperature environments up to 850°C (1562°F).

Gangsteel offers SA240 Gr 347 stainless steel plate, sheet, bar, and custom components, meeting ASME SA240 and ASTM A240 standards.

This page provides detailed insights into the SA240 Gr 347 chemical composition, mechanical properties, equivalent materials, specifications, applications, and competitive SA240 Gr 347 price per kg. Explore our ASME SA240 stainless sheet portfolio for related grades like SA240 Gr 347H, SA240 Gr 334, and SA240 Gr 904L.

1. What is SA240 Gr 347 (S34700)?

SA240 Gr 347, also known as UNS S34700, is an austenitic stainless steel alloy with 17.0-19.0% chromium, 9.0-13.0% nickel, and columbium (niobium) additions for stabilization. It is designed to resist intergranular corrosion caused by sensitization during welding or high-temperature exposure, making SA240 Gr 347 material ideal for applications in aerospace, chemical processing, and power generation.

Compared to SA240 Gr 347H, SA240 Gr 347 has a lower carbon content, offering better weldability but slightly reduced creep strength at high temperatures.

Gangsteel’s SA240 Gr 347 stainless steel plate is engineered for industries requiring reliable performance in corrosive and high-temperature environments, providing a versatile alternative to grades like SA240 Gr 348 or SA240 Gr 317LMN.

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2. SA240 Gr 347 Chemical Composition

The SA240 Gr 347 chemical composition, compliant with ASME SA240, is optimized for corrosion resistance and high-temperature stability.

Note: The columbium (niobium) addition stabilizes SA240 Gr 347 against intergranular corrosion, offering better high-temperature performance than SA240 Gr 316 in welded structures.

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3. SA240 Gr 347 Mechanical Properties

The SA240 Gr 347 mechanical properties, tested per ASME SA240, provide a balance of strength and ductility, making SA240 Gr 347 stainless steel plate suitable for high-temperature and corrosive applications.

Note: Solution annealing at 1050-1150°C (1922-2102°F) optimizes UNS S34700 mechanical properties for corrosion resistance and high-temperature stability. Contact Gangsteel for a detailed SA240 Gr 347 technical data sheet.

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4. SA240 Gr 347 Allowable Stress

The allowable stress values for SA240 Gr 347, per ASME BPVC Section II, Part D, ensure reliable performance in high-temperature applications.

Note: These values ensure SA240 Gr 347 material performs reliably in aerospace components and chemical processing equipment under high temperatures.

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5. SA240 Gr 347 Equivalent Materials

SA240 Gr 347aligns with international standards for global compatibility.

Note: SA240 Gr 347 equivalent grades comply with ASME SA240, offering interchangeability with SA240 Gr 347H for applications requiring higher creep resistance.

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6. SA240 Gr 347 vs SA240 Gr 347H, SA240 Gr 334, and SA240 Gr 904L

Choosing the right material is critical to your project’s success. Here’s how SA240 Gr 347 compares to SA240 Gr 347H, SA240 Gr 334, and SA240 Gr 904L:

• SA240 Gr 347 vs SA240 Gr 347H: SA240 Gr 347 offers better weldability due to lower carbon content, while SA240 Gr 347H provides enhanced creep strength for high-temperature applications.
• SA240 Gr 347 vs SA240 Gr 334: SA240 Gr 347 excels in intergranular corrosion resistance, while SA240 Gr 334 offers superior scaling resistance for heating elements.
• SA240 Gr 347 vs SA240 Gr 904L: SA240 Gr 347 is suited for high-temperature applications, while SA240 Gr 904L provides better corrosion resistance in acidic and seawater environments.

Conclusion: Choose SA240 Gr 347 for high-temperature corrosion resistance in aerospace, SA240 Gr 347H for creep-resistant applications, SA240 Gr 334 for heating elements, or SA240 Gr 904L for acid and seawater resistance.

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7. SA240 Gr 347 Specifications

Gangsteel provides SA240 Gr 347 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 347 plate for aerospace components, UNS S34700 sheet for chemical reactors

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 347 bar for high-temperature 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 aerospace and chemical industries

Note: Need a specific size or finish? Gangsteel offers custom solutions, including annealing at 1050-1150°C. Contact us for bespoke SA240 Gr 347 material specifications.

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8. Applications of SA240 Gr 347

SA240 Gr 347is designed for industries requiring corrosion resistance and high-temperature stability. Key SA240 Gr 347 applications include:

• Aerospace: SA240 Gr 347 stainless steel plate for jet engine components and exhaust systems.
• Chemical Processing: UNS S34700 plate for reactors and heat exchangers.
• Power Generation: SA240 Gr 347 sheet for boiler tubes and superheaters.
• Petrochemical: SA240 Gr 347 bar for fittings in high-temperature environments.
• Oil and Gas: Components for refining equipment.

Note: Compared to SA240 Gr 348, SA240 Gr 347 is more versatile for non-nuclear applications due to higher cobalt content.

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9. Price of SA240 Gr 347

The SA240 Gr 347 price per kg ranges from USD 7-14 per kg (FOB), influenced by:

• Alloy Content: Moderate nickel (9.0-13.0%) and columbium keep costs lower than SA240 Gr 904L.
• Market Demand: Demand in aerospace and chemical industries drives UNS S34700 price.
• Product Form: SA240 Gr 347 stainless steel plate may cost more than sheet due to processing complexity.
• Global Supply Chain: Freight and availability impact SA240 Gr 347 cost.

For a precise SA240 Gr 347 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 347 for various applications:

• SA240 Gr 347H: Enhanced creep resistance for high-temperature applications.
• SA240 Gr 334: High-temperature resistance for heating elements.
• SA240 Gr 348: Low-cobalt for nuclear applications.
• SA240 Gr 348H: High-carbon for enhanced high-temperature strength.
• SA240 Gr 317LM: Cost-effective corrosion resistance for acidic environments.
• SA240 Gr 317LMN: Nitrogen-enhanced for improved strength and corrosion resistance.
• 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 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 347 in aerospace, chemical, and high-temperature 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 347 stainless steel plate is crafted to meet the highest industry standards, delivering exceptional performance in corrosive and high-temperature environments.

With a commitment to customer satisfaction, we offer:

• Quality Assurance: Every SA240 Gr 347 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 347H and SA240 Gr 348.

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12. Conclusion

For projects requiring excellent corrosion resistance and high-temperature stability, SA240 Gr 347 stainless steel plate from Gangsteel is your ideal solution.

Known as UNS S34700, its columbium-stabilized austenitic structure delivers unmatched performance for aerospace components, chemical reactors, and power generation equipment, offering better weldability than SA240 Gr 347H.

Available in versatile specifications (0.5-100 mm thickness, up to 3000 mm width) and equivalent grades (W.Nr. 1.4550, EN X6CrNiNb18-10), Gangsteel provides quality at a competitive SA240 Gr 347 price per kg (USD 7-14/kg).

Contact Gangsteeltoday for a quick quote on SA240 Gr 347 price per kg or to request a detailed UNS S34700 technical data sheet.

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