| Product name | 904L Stainless Steel Wire Mesh |
| Material | 904L (19-23% Cr, 23-28% Ni, 4-5% Mo, 1-2% Cu) |
| Mesh Size | 2 – 400 Mesh |
| Wire Diameter | 0.05mm – 3.0mm |
| Free simple | Sample is available |
| Packaging | Moisture-proof paper + bubble wrap + wooden box |
| Payment method | T/T,LC, Western Union, PayPal, Escrow and Money Gram |
904L stainless steel wire mesh is a high-end metal mesh product meticulously crafted by our company, using premium 904L super austenitic stainless steel wires. Renowned for its exceptional corrosion resistance, 904L is a super austenitic stainless steel with a high nickel (Ni) and chromium (Cr) content, along with additions of molybdenum (Mo) and copper (Cu). This unique alloy composition makes it highly resistant to a wide range of aggressive chemicals, particularly in environments with high concentrations of sulfuric acid and other reducing acids. It is the material of choice for industries where extreme corrosion resistance is non-negotiable.
Material Characteristics
- Superior Corrosion Resistance: 904L stainless steel contains approximately 24-26% chromium, 19-23% nickel, 4-5% molybdenum, and 1-2% copper. This high alloy content forms a dense and stable passive film on the surface of the woven mesh, enabling it to resist corrosion in highly aggressive environments. It excels in handling sulfuric acid, phosphoric acid, formic acid, and acetic acid, as well as in marine and coastal settings with high salt concentrations. Compared to conventional stainless steels like 316, 904L offers significantly better resistance to pitting, crevice corrosion, and general corrosion.
- Excellent Mechanical Properties: While 904L has a lower tensile strength than duplex stainless steels, it maintains good ductility and toughness, even at low temperatures. This makes the woven mesh easy to fabricate, form, and weld, allowing for flexible customization to meet specific application requirements. It retains its mechanical stability over a wide temperature range, ensuring reliable performance in both high and low-temperature environments.
- High Temperature Resistance: 904L stainless steel wire mesh can withstand continuous operating temperatures up to 400°C, making it suitable for applications involving high-temperature fluids or processes. It resists oxidation and scaling at elevated temperatures, ensuring long-term performance in heat-intensive industrial settings.
- Good Weldability and Fabricability: 904L stainless steel offers excellent weldability, allowing for easy joining and integration into complex systems. The woven mesh can be cut, bent, and shaped without compromising its corrosion resistance or structural integrity, facilitating seamless installation in various equipment and applications.
Structural Characteristics
- Uniform and Precise Mesh: Our 904L stainless steel wire mesh is produced using advanced weaving techniques, ensuring uniform mesh size, consistent opening area, and precise filtration accuracy. The tightly interwoven wires create a stable structure that delivers reliable screening and filtering performance, with minimal variation across the entire mesh surface.
- Durable and Stable Structure: The inherent strength and ductility of 904L stainless steel, combined with the precise weaving pattern, give the mesh excellent structural stability. It is resistant to deformation under pressure, tension, or mechanical stress, maintaining its original shape and functionality even in demanding operating conditions. This durability ensures a long service life and reduces maintenance costs.
- Smooth Surface for Easy Cleaning: The surface of 904L stainless steel wire mesh is smooth and non-porous, minimizing the adhesion of contaminants, sediments, and particles. This feature simplifies cleaning and maintenance, as the mesh can be easily rinsed with water, cleaned with chemical detergents, or subjected to ultrasonic cleaning. Its resistance to staining ensures a clean and hygienic surface, making it ideal for applications in the pharmaceutical and food industries.
- Customizable Specifications: To cater to diverse industrial needs, we offer extensive customization options for 904L stainless steel wire mesh. This includes a wide range of mesh counts (from fine meshes for precision filtration to coarse meshes for heavy-duty screening), wire diameters, mesh shapes (square, rectangular, etc.), and sheet sizes. Our technical team works closely with customers to develop tailored solutions that meet their exact requirements.
Applications
1. Chemical Processing
- Sulfuric Acid Plants: Filter meshes, scrubber components
- Pharmaceutical: Reactor screens, CIP systems
- Dye & Pigment Production: Filtration of aggressive media
2. Oil & Gas
- FGD Systems: Flue gas desulfurization scrubbers
- Subsea Equipment: Christmas tree screens, manifold filters
- Sour Gas Service: H₂S-resistant components (NACE MR0175 compliant)
3. Marine Engineering
- Seawater Intake Screens
- Desalination Plant Filters
- Shipboard Exhaust Scrubbers
4. Pollution Control
- Scrubber Systems for acid gas removal
- Waste Incineration flue gas filters
Chemical Composition of 904L Stainless Steel
| Element | Content (%) |
|---|---|
| Carbon (C) | ≤ 0.020 |
| Manganese (Mn) | ≤ 2.00 |
| Phosphorus (P) | ≤ 0.045 |
| Sulfur (S) | ≤ 0.035 |
| Silicon (Si) | ≤ 1.00 |
| Chromium (Cr) | 19.00 – 23.00 |
| Nickel (Ni) | 23.00 – 28.00 |
| Molybdenum (Mo) | 4.00 – 5.00 |
| Copper (Cu) | 1.00 – 2.00 |
| Iron (Fe) | Balance |
904L vs 2507 Super Duplex Wire Mesh
| Property | 904L Super Austenitic | 2507 Super Duplex |
|---|---|---|
| Structure | Austenitic (non-magnetic) | Duplex |
| Best acid resistance | Sulfuric, reducing acids | Chloride, oxidizing |
| PREN (pitting resistance) | ≈ 36 | ≈ 42 |
| Max service temperature | 400°C | 300°C |
| Weldability | Excellent | Good |
Standards & Compliance
904L stainless steel wire mesh complies with ASTM B625 and corresponds to UNS N08904 (EN 1.4539). Its copper addition (1–2%) gives it outstanding resistance to sulfuric, phosphoric and other reducing acids, and it meets NACE MR0175 for sour-gas service.
FAQ
What is 904L stainless steel wire mesh?
904L stainless steel wire mesh is woven from a super austenitic alloy (UNS N08904) with high nickel, chromium and molybdenum plus a 1–2% copper addition. The copper gives it outstanding resistance to sulfuric and other reducing acids, far beyond standard 316.
What acids can 904L wire mesh resist?
904L excels in sulfuric, phosphoric, formic and acetic acids, as well as chloride-bearing environments. Its copper addition makes it especially effective against reducing acids where conventional 316 stainless steel corrodes.
What is the difference between 904L and 2507 wire mesh?
904L is austenitic and optimized for reducing acids such as sulfuric acid, with excellent weldability and a 400°C rating. 2507 is a super duplex optimized for chloride pitting with a higher PREN (≈ 42 vs ≈ 36). Choose 904L for strong reducing acids, 2507 for high-chloride seawater service.
What is the difference between 904L and 316L wire mesh?
904L has far higher nickel, molybdenum and added copper, giving it much better resistance to sulfuric acid, reducing acids and pitting than 316L. It is chosen where 316L would corrode, such as in concentrated acid and sour-gas service.
Is 904L wire mesh resistant to sulfuric acid?
Yes. 904L is one of the standard stainless steel choices for sulfuric acid service, including concentrated acid and acid mixtures. Its copper content provides the reducing-acid resistance that 316L and most duplex grades lack.
What temperature can 904L wire mesh withstand?
904L stainless steel wire mesh withstands continuous operating temperatures up to about 400°C, with good oxidation and scaling resistance, making it suitable for heat-intensive chemical processes.
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