ASTM A240 904L (UNS N08904) Stainless Steel Sheet
Top 904L Stainless Steel Sheet Manufacturer in China
ASTM A240 904L (UNS N08904) Stainless Steel Sheet exhibits outstanding longevity and resistance against wear and tear in environments such as harsh chemicals, marine, or any industrial extreme climatic conditions. It can survive severe situations, including exposure to sulfuric acid and chloride. Equipped with suitable mechanical characteristics, this top-of-the-line sheet metal ensures an extended service life and meticulous machining, providing unsurpassed quality for any severe application that requires stiff and high-strength materials.
Discover high-quality 904L stainless sheet products here.
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Characteristics of 904L Stainless Steel
- Exceptional Corrosion Resistance: Resistant to sulfuric, phosphoric, and acetic acids, with high resistance to crevice corrosion.
- High Alloy Composition: Contains nickel (23-28%), chromium (19-23%), molybdenum (4-5%), and copper (1-2%).
- Non-Magnetic Properties: Completely non-magnetic, making it suitable for specialized applications.
- Superior Weldability: Easily welded using conventional methods without pre- or post-weld heat treatments.
- Excellent Formability: Can be bent and shaped into complex forms without cracking or stress issues.
- Resistance to Stress Corrosion Cracking: High nickel content ensures durability in chloride-rich and harsh environments.
- Low Carbon Content: Prevents intergranular corrosion and ensures stability during welding processes.
- Versatile Industrial Applications: Used in seawater cooling, chemical processing, heat exchangers, and pollution control systems.
ASTM A240 904L (UNS N08904) Stainless Steel Technical Specifications
| Element | Percentage Range (%) | Purpose |
|---|---|---|
| Chromium (Cr) | 19.00 – 23.00 | Enhances corrosion resistance and strength. |
| Nickel (Ni) | 23.00 – 28.00 | Improves overall stability, toughness, and resistance to cracking. |
| Molybdenum (Mo) | 4.00 – 5.00 | Provides resistance to pitting and crevice corrosion. |
| Copper (Cu) | 1.00 – 2.00 | Enhances resistance to reducing acids like sulfuric acid. |
| Manganese (Mn) | 2.00 max | Aids in deoxidation and increases hardness. |
| Silicon (Si) | 1.00 max | Improves oxidation resistance at high temperatures. |
| Carbon (C) | 0.020 max | Maintains weldability and prevents carbide precipitation. |
| Phosphorus (P) | 0.045 max | Added in trace amounts; excessive amounts may reduce ductility. |
| Sulfur (S) | 0.035 max | Helps improve machinability. |
| Property | Value |
|---|---|
| Tensile Strength (UTS) | ≥490 MPa (71,000 psi) |
| Yield Strength (0.2% Proof) | ≥220 MPa (32,000 psi) |
| Elongation at Break | ≥35% |
| Hardness (Rockwell B) | ≤90 HRB |
| Brinell Hardness | 170 |
| Elastic Modulus | 200 GPa (29 x 10⁶ psi) |
| Shear Strength | 370 MPa (53 x 10³ psi) |
| Fatigue Strength | 200 MPa (30 x 10³ psi) |
| Property | Value |
|---|---|
| Density | 8.0 g/cm³ (500 lb/ft³) |
| Melting Range | 1390–1440°C (2530–2620°F) |
| Thermal Conductivity | 12 W/m·K (6.8 BTU/h·ft·°F) |
| Specific Heat Capacity | 470 J/kg·K (0.11 BTU/lb·°F) |
| Thermal Expansion | 16 µm/m·K |
| Elastic Modulus | 200 GPa (29 x 10⁶ psi) |
| Electrical Conductivity | 1.7% IACS |
| Maximum Service Temperature | 430°C (800°F) for corrosion resistance |
| Latent Heat of Fusion | 300 J/g |
- ASTM: A240 904L, UNS N08904
- JIS: SUS 904L
- BS: 904S13
- NF: Z2NCDU25-20
- EN: X1NiCrMoCu25-20-5 (1.4539)
Common Applications of 904L Stainless Steel
Chemical Processing
Marine Engineering
Oil & Gas Industry
Pulp and Paper Industry
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904L Stainless Steel Sheet Customization
Beyond standard stock, we provide comprehensive processing services to deliver products that meet your exact project requirements.
- Custom Dimensions: 904L stainless steel sheets can be tailored to specific lengths and widths, meeting unique project requirements and applications.
- Thickness Range: Available in thicknesses from 0.3 mm to 120 mm, accommodating diverse industrial and structural needs.
- Surface Finishing: Offered in finishes like 2B, BA, No.8, satin, and hairline, ensuring aesthetic and functional versatility.
- Processing Services: Includes cutting, bending, polishing, heat treatment, and cladding, providing ready-to-use sheets for various industries and applications.
Contact our technical team to discuss your custom fabrication needs.
Contact Us
Locate genuine ASTM A240 904L stainless steel sheets of your preferred specifications, including size, thickness (in inches), and finish (2B or satin). They are advantageous for sectors such as those involved in chemical processes and sailing, due to the resistance and toughness of these sheets, which are resistant to blast corrosion and wear. Drop us a line to place an order for shipping within 1-4 working days!
Ready to begin? Contact our expert team for a detailed, no-obligation quote and professional material consultation. We are here to discuss your technical requirements and provide a tailored solution with competitive pricing and on-time delivery. Let us simplify your procurement process and help bring your project to life with the support it deserves. Send your inquiry now to secure the premium materials you need.
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