A240 904L Stainless Steel Plate Equal UNS N08904 DIN 1.4539

A240 904L Stainless Steel Plate Supplier,Specifications, Equivalent Materials and Price

ASTM A240/ASME SA240 904L stainless steel plate, offered by Gangsteel, is a high-alloy austenitic stainless steel renowned for its exceptional corrosion resistance in aggressive environments, such as sulfuric acid, chlorides, and seawater.

As a leading stainless steel supplier in China, Gangsteel provides 904L stainless steel plate, sheet, pipe, and custom components, meeting ASTM, ASME, and DIN standards. This page details the 904L stainless steel chemical composition, mechanical properties, equivalent materials, expanded specifications, and applications, along with competitive 904L stainless steel price per kg. Explore our nickel alloy steel grades for other high-performance alloys like Alloy G-3, Alloy 20, and Alloy 825.

1. What is A240 904L Stainless Steel?

904L stainless steel(UNS N08904, DIN 1.4539) is a super austenitic stainless steel designed for superior corrosion resistance in harsh environments. With high nickel (23-28%), molybdenum (4-5%), and copper (1-2%), 904L material excels in resisting pitting, crevice corrosion, and stress corrosion cracking, making it ideal for 904L stainless steel plate in petrochemical, pharmaceutical, and marine applications. Its low carbon content (≤0.02%) ensures excellent weldability, distinguishing it from other nickel alloy steel grades like Inconel 625 or Hastelloy C-276.

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2. A240 904L Stainless Steel Chemical Composition

The 904L stainless steel chemical composition, as per ASTM A240 and ASME SA-240, is optimized for corrosion resistance in acidic and chloride-rich environments. The high alloy content enhances 904L stainless steel corrosion resistance compared to standard grades like 316L.

Note: The high molybdenum and copper content make 904L stainless steel plate ideal for sulfuric acid and seawater applications, outperforming Alloy 20 in chloride resistance.

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3. Mechanical Properties of ASTM A240 904L Stainless Steel

The 904L stainless steel mechanical properties ensure durability and formability for demanding applications. Tested per ASTM A240, 904L stainless steel plate offers a balance of strength and ductility, suitable for chemical processing and marine environments.

• Tensile Strength: Supports structural integrity in corrosive conditions.
• Yield Strength: Ensures reliability for 904L stainless steel plate in high-stress applications.
• Elongation: High ductility facilitates forming and welding.
• Hardness: Moderate hardness ensures wear resistance for long-term use.

Note: Contact Gangsteel for a detailed 904L stainless steel properties datasheet, including properties at elevated temperatures.

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4. A240 904L Stainless Steel sheet Equivalent Materials

ASTM A240 904L stainless steel(UNS N08904) is equivalent to several international grades, ensuring compatibility across global standards. Below are common equivalents:

Note: 904L material equivalent grades comply with ASTM A240, ASME SA-240, and EN 10028-7, ensuring interchangeability with 254SMO or AL-6XN in specific applications.

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5. 904L vs 316L Stainless Steel

Comparing ASTM A240 904L stainless steel to 316L stainless steel helps in selecting the right material for your project. Below is a detailed comparison:

• Corrosion Resistance: 904L stainless steel corrosion resistance outperforms 316L in aggressive environments due to higher alloy content, ideal for 904L stainless steel plate in seawater systems.
• Cost: 904L is more expensive due to its premium alloying elements, while 316L is cost-effective for less corrosive conditions.
• Applications: 904L is suited for high-corrosion environments, while 316L is ideal for general-purpose uses.

Conclusion: Choose 904L stainless steel plate for superior corrosion resistance in demanding applications, or opt for 316L for cost-sensitive projects with milder conditions.

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6. Expanded Specifications for A240 904L Stainless Steel

Gangsteel offers 904L stainless steel plate, sheet, pipe, and custom components with a wide range of specifications to meet diverse project requirements:

6.1 Plate and Sheet

• Thickness: 0.3 mm to 100 mm
• Width: 1000 mm to 3500 mm
• Length: 2000 mm to 15000 mm
• Surface Finish: Hot-rolled, cold-rolled, annealed, pickled, 2B, No.1, No.4, or customized (e.g., mirror, brushed)
• Standards: ASTM A240, ASME SA-240, EN 10028-7, JIS G4304
• Applications: Chemical reactors, heat exchangers, marine equipment

6.2 Pipe and Tube

• Types: Seamless, welded, ERW
• Outer Diameter: 6 mm to 610 mm
• Wall Thickness: Sch 5S to Sch XXS
• Length: Up to 18 m
• Standards: ASTM A312, A269, ASME SA-312, SA-269
• Applications: Chemical processing pipelines, seawater systems

6.3 Round Bar

• Diameter: 6 mm to 500 mm
• Length: Up to 12000 mm
• Finish: Hot-rolled, cold-drawn, centerless ground
• Standards: ASTM A276, A479, ASME SA-479
• Applications: Valves, pump shafts, fasteners

6.4 Custom Components

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

Note: Custom sizes, finishes, and heat treatments (e.g., solution annealing, quenching) are available. Contact Gangsteel for bespoke 904L stainless steel plate solutions.

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7. Applications of A240 904L Stainless Steel

904L stainless steelis a versatile material used in industries requiring exceptional corrosion resistance. Key 904L stainless steel applications include:

• Petrochemical Industry: 904L stainless steel plate for reactors, pipelines, and storage tanks handling sulfuric and phosphoric acids.
• Pharmaceutical Industry: 904L stainless steel pipe for high-purity systems in drug manufacturing.
• Pulp and Paper Industry: 904L material for digesters and bleach plants resisting chloride-induced corrosion.
• Marine Applications: 904L stainless steel plate for seawater cooling systems, shipbuilding, and offshore platforms.
• Flue Gas Desulfurization: Scrubbers and heat exchangers leveraging 904L stainless steel corrosion resistance.
• Oil and Gas: 904L stainless steel pipe for sour gas and acidic environments.

Note: Compared to Alloy G-3 or Alloy 825, 904L offers a cost-effective balance of corrosion resistance and austenitic properties.

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8. A240 904L Stainless Steel Price per KG

The 904L stainless steel price per kg ranges from USD 20-35 per kg (FOB), influenced by:

• Alloy Content: High nickel (23-28%) and molybdenum (4-5%) increase costs due to volatile raw material prices.
• Market Demand: High demand in petrochemical and marine sectors drives price fluctuations.
• Product Form: 904L stainless steel plate may cost more than sheet or pipe due to thickness and processing.
• Global Supply Chain: Freight costs and availability impact 904L stainless steel cost.

For precise pricing or bulk order discounts, contact Gangsteel, a leading stainless steel supplier in China, for tailored quotes.

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9. Related Alloy Steel Grades

Gangsteel offers a wide range of nickel alloy steel grades alongside 904L stainless steel, suitable for complementary applications:

• Alloy G-3(UNS N06985): High corrosion resistance in reducing acids, ideal for phosphoric acid service.
• Alloy 20(UNS N08020): Optimized for sulfuric acid resistance, used in chemical processing.
• Alloy 825(UNS N08825): Versatile corrosion resistance in mixed acids and marine environments.
• Alloy 80A(UNS N07080): High-temperature strength for aerospace and gas turbines.
• Inconel 625(UNS N06625): High strength and corrosion resistance for aerospace and marine applications.
• Hastelloy C-276(UNS N10276): Superior corrosion resistance in aggressive chemical environments.
• Hastelloy C-22(UNS N06022): Enhanced resistance to pitting and crevice corrosion.
• 254SMO(UNS S31254): Super austenitic stainless steel with enhanced chloride resistance.
• Duplex 2205(UNS S32205): High strength and corrosion resistance for oil and gas.
• Duplex 2507(UNS S32750): Superior strength and corrosion resistance for harsh environments.

Note: These alloys complement 904L stainless steel plate in applications requiring specialized corrosion or temperature resistance. Contact Gangsteel for a full catalog.

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10. FAQ about ASTM A240 904L Stainless Steel

Below are frequently asked questions about 904L stainless steel

1. What is 904L stainless steel used for?
   904L stainless steel is used in petrochemical, pharmaceutical, pulp and paper, marine, and flue gas desulfurization systems for 904L stainless steel plate and pipe due to its superior corrosion resistance.
2. Is 904L stainless steel better than 316L?
   Yes, 904L stainless steel offers superior corrosion resistance in sulfuric acid and chloride-rich environments due to higher nickel and molybdenum content, though it is more expensive.
3. What is the price of 904L stainless steel per kg?
   The 904L stainless steel price per kg ranges from USD 20-35 per kg (FOB), depending on alloy content, product form, and market demand.
4. Does 904L stainless steel rust?
   904L stainless steel is highly resistant to rust due to its high chromium, nickel, and molybdenum content, ideal for corrosive environments like seawater and acids.
5. What are the equivalent materials for 904L stainless steel?
   Equivalent grades include UNS N08904, DIN 1.4539, EN X1NiCrMoCu25-20-5, and W.Nr. 2.4539, compliant with ASTM A240 and EN 10028-7.
6. Where to buy 904L stainless steel plate or pipe?
   Contact Gangsteel, a leading stainless steel supplier in China, for high-quality 904L stainless steel plate, pipe, and custom components with global delivery.

11. Why Choose Gangsteel?

• Quality Assurance: All 904L stainless steel plate products comply with ASTM A240, ASME SA-240, EN 10028-7, and JIS G4304, with EN 10204 3.1/3.2 material test certificates.
• Fast Delivery: Standard orders delivered in 7-15 days, with expedited options for urgent projects.
• Customization: Precision cutting, CNC machining, and heat treatment (e.g., solution annealing) tailored to your specifications.
• Global Supply: Serving markets in Saudi Arabia, UAE, India, Europe, and beyond with efficient logistics.
• Comprehensive Inventory: Wide range of nickel alloy steel grades, including Alloy 80A, Hastelloy C-22, and Duplex 2507.

12. Conclusion

ASTM A240 904L stainless steel plate from Gangsteel offers unmatched corrosion resistance, making it the ideal choice for petrochemical, pharmaceutical, and marine applications. With high nickel, molybdenum, and copper content, 904L material outperforms 316L in aggressive environments, supported by expanded specifications (0.3-100 mm thickness, up to 3500 mm width) and equivalent grades (UNS N08904, DIN 1.4539). As a trusted stainless steel supplier in China, Gangsteel delivers high-quality 904L stainless steel plate, pipe, and custom components at competitive prices (USD 20-35/kg).

Contact Gangsteel today for the latest 904L stainless steel plate and pipe price in China or to request a detailed datasheet. Explore our nickel alloy steel grades for tailored solutions to your project needs!