ASME SA240 Gr 348H (S34809) Stainless Steel Sheet

SA240 Gr 348H (S34809) Stainless Steel Plate Supplier | ASME SA240 Specifications, Equivalent Materials, and Price

When your project demands a material that excels in high-temperature environments with superior creep resistance, corrosion resistance, and low cobalt content for nuclear applications, ASME SA240 Gr 348H (S34809) stainless steel plate is an outstanding choice. Supplied by Gangsteel, a leading ASME SA240 stainless steel supplier in China, this high-carbon, columbium-stabilized austenitic stainless steel is renowned for its exceptional ASME SA240 Gr 348H high-temperature strength and resistance to intergranular corrosion, making it ideal for nuclear reactors, petrochemical, and power generation applications.

Gangsteel offers ASME SA240 Gr 348H stainless steel plate, sheet, bar, and custom components, fully compliant with ASME SA240 and ASTM A240 standards.

This page provides detailed insights into the ASME SA240 Gr 348H chemical composition, mechanical properties, equivalent materials, specifications, applications, and competitive ASME SA240 Gr 348H price per kg. Explore our ASME SA240 stainless sheet portfolio for related grades like ASME SA240 Gr 348, ASME SA240 Gr 347H, and ASME SA240 Gr 904L.

1. What is ASME SA240 Gr 348H (S34809)?

ASME SA240 Gr 348H, also known as UNS S34809, is a high-carbon, columbium (niobium)-stabilized austenitic stainless steel with 17.0-19.0% chromium, 9.0-13.0% nickel, and a restricted cobalt content (≤ 0.2%) for nuclear applications. It is designed for enhanced creep and rupture strength at high temperatures up to 850°C (1562°F), with excellent resistance to intergranular corrosion caused by sensitization during welding or prolonged heat exposure.

ASME SA240 Gr 348H materialis ideal for applications requiring durability in high-temperature and corrosive environments, such as nuclear reactor components, petrochemical reformers, and boiler tubes. Compared to ASME SA240 Gr 348, ASME SA240 Gr 348H offers superior creep resistance due to its higher carbon content, making it suitable for more demanding high-temperature nuclear applications.

Gangsteel’s ASME SA240 Gr 348H stainless steel plate is engineered for industries needing reliable performance in extreme conditions, providing a specialized alternative to grades like ASME SA240 Gr 347H or ASME SA240 Gr 334.

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2. ASME SA240 Gr 348H Chemical Composition

The ASME SA240 Gr 348H chemical composition, compliant with ASME SA240 standards, is optimized for high-temperature creep resistance, corrosion resistance, and low cobalt content.

Note: The higher carbon content and columbium (niobium) stabilization, combined with low cobalt, enhance ASME SA240 Gr 348H’s creep resistance and suitability for nuclear applications, outperforming ASME SA240 Gr 316 in high-temperature welded structures.

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3. ASME SA240 Gr 348H Mechanical Properties

The ASME SA240 Gr 348H mechanical properties, tested per ASME SA240, provide excellent strength and ductility at elevated temperatures, making ASME SA240 Gr 348H stainless steel plate ideal for high-temperature nuclear and petrochemical applications.

Note: Solution annealing at 1050-1150°C (1922-2102°F) optimizes UNS S34809 mechanical properties for creep resistance and high-temperature stability. Contact Gangsteel for a detailed ASME SA240 Gr 348H technical data sheet.

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4. ASME SA240 Gr 348H Allowable Stress

The allowable stress values for ASME SA240 Gr 348H, per ASME BPVC Section II, Part D, ensure reliable performance in high-temperature and nuclear applications.

Note: These values ensure ASME SA240 Gr 348H material performs reliably in nuclear reactor components and petrochemical reformers under prolonged high temperatures.

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5. ASME SA240 Gr 348H Equivalent Materials

ASME SA240 Gr 348Haligns with international standards for global compatibility.

Note: ASME SA240 Gr 348H equivalent grades comply with ASME SA240, offering interchangeability with ASME SA240 Gr 348 for applications requiring less creep resistance and ASME SA240 Gr 347H for non-nuclear uses.

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6. ASME SA240 Gr 348H vs ASME SA240 Gr 348, ASME SA240 Gr 347H, and ASME SA240 Gr 904L

Choosing the right material is critical to your project’s success. Here’s how ASME SA240 Gr 348H compares to ASME SA240 Gr 348, ASME SA240 Gr 347H, and ASME SA240 Gr 904L:

• ASME SA240 Gr 348H vs ASME SA240 Gr 348: ASME SA240 Gr 348H offers enhanced creep and rupture strength due to higher carbon content, while ASME SA240 Gr 348 provides better weldability for less demanding nuclear applications.
• ASME SA240 Gr 348H vs ASME SA240 Gr 347H: ASME SA240 Gr 348H has lower cobalt content for nuclear applications, while ASME SA240 Gr 347H is more versatile for non-nuclear high-temperature uses.
• ASME SA240 Gr 348H vs ASME SA240 Gr 904L: ASME SA240 Gr 348H excels in high-temperature nuclear applications, while ASME SA240 Gr 904L offers superior corrosion resistance in acidic and seawater environments.

Conclusion: Choose ASME SA240 Gr 348H for creep-resistant nuclear applications, ASME SA240 Gr 348 for general nuclear uses, ASME SA240 Gr 347H for non-nuclear high-temperature applications, or ASME SA240 Gr 904L for acid and seawater resistance.

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7. ASME SA240 Gr 348H Specifications

Gangsteel provides ASME SA240 Gr 348H stainless steel plate, sheet, bar, and custom components to meet your project’s needs, compliant with ASME SA240 standards:

7.1 Plate and Sheet

• Thickness: 0.5 mm to 100 mm (plate), 0.1 mm to 6 mm (sheet)
• Width: Up to 4200 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: ASME SA240, ASTM A240
• Applications: ASME SA240 Gr 348H plate for nuclear reactor components, UNS S34809 sheet for petrochemical reformers

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: ASME SA240 Gr 348H 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 nuclear and petrochemical industries

Note: Need a specific size or finish? Gangsteel offers custom solutions, including annealing at 1050-1150°C, to meet ASME SA240 requirements. Contact us for bespoke ASME SA240 Gr 348H material specifications.

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8. Applications of ASME SA240 Gr 348H

ASME SA240 Gr 348His designed for industries requiring high-temperature strength, corrosion resistance, and low cobalt content. Key ASME SA240 Gr 348H applications include:

• Nuclear: ASME SA240 Gr 348H stainless steel plate for reactor components and fuel assemblies.
• Petrochemical: UNS S34809 plate for reformers and cracking furnaces.
• Power Generation: ASME SA240 Gr 348H sheet for boiler tubes and superheaters.
• Chemical Processing: ASME SA240 Gr 348H bar for fittings in high-temperature reactors.
• Aerospace: Components for high-temperature exhaust systems.

Note: Compared to ASME SA240 Gr 347H, ASME SA240 Gr 348H is optimized for nuclear applications due to its low cobalt content.

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9. Price of ASME SA240 Gr 348H

The ASME SA240 Gr 348H price per kg ranges from USD 8-15 per kg (FOB), influenced by:

• Alloy Content: Moderate nickel (9.0-13.0%) and columbium, with restricted cobalt, keep costs similar to ASME SA240 Gr 347H.
• Market Demand: Demand in nuclear and petrochemical industries drives UNS S34809 price.
• Product Form: ASME SA240 Gr 348H stainless steel plate may cost more than sheet due to processing complexity.
• Global Supply Chain: Freight and availability impact ASME SA240 Gr 348H cost.

For a precise ASME SA240 Gr 348H 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 ASME SA240 Gr 348H for various applications:

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

Note: These grades complement ASME SA240 Gr 348H in nuclear, petrochemical, 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 ASME SA240 Gr 348H stainless steel plate is crafted to meet the stringent requirements of ASME SA240 standards, delivering exceptional performance in high-temperature and corrosive environments.

With a commitment to customer satisfaction, we offer:

• Quality Assurance: Every ASME SA240 Gr 348H stainless steel plate complies with ASME SA240 and ASTM A240 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, including widths up to 4200 mm.
• 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 ASME SA240 Gr 348 and ASME SA240 Gr 347H.

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12. Conclusion

For projects requiring superior creep resistance, corrosion resistance, and low cobalt content for nuclear and high-temperature applications, ASME SA240 Gr 348H stainless steel plate from Gangsteel is your ideal solution.

Known as UNS S34809, its high-carbon, columbium-stabilized, low-cobalt austenitic structure delivers unmatched performance for nuclear reactor components, petrochemical reformers, and boiler tubes, offering enhanced creep strength compared to ASME SA240 Gr 348.

Available in versatile specifications (0.5-100 mm thickness, up to 4200 mm width) and equivalent grades (W.Nr. 1.4948, EN X6CrNiNb18-12), Gangsteel provides quality at a competitive ASME SA240 Gr 348H price per kg (USD 8-15/kg).

Contact Gangsteeltoday for a quick quote on ASME SA240 Gr 348H price per kg or to request a detailed UNS S34809 technical data sheet.

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