“T304” and “304” stainless steel generally refer to the same material, with “T304” being a common designation used to indicate Type 304 stainless steel. Both terms are often used interchangeably.
Choosing Between 304 and 304L:
- 304L: Due to its lower carbon content, 304L offers superior resistance to intergranular corrosion, making it ideal for applications involving welding and demanding high corrosion resistance.
- UNS S30403 Wire Mesh, also known as 304L stainless steel wire mesh, is a versatile and widely used material across various industrial applications. This wire mesh finds common use in industries like chemical processing, petrochemical, food processing, and marine environments, where both durability and resistance to intergranular corrosion are crucial.
- 304: If high strength is your primary concern and welding is not a major factor, then 304 stainless steel might be a better choice due to its slightly higher strength.
Here’s a composition comparison table for 304, 304L stainless steel wire meshes:
Comparison Table
| Property/Feature | 304 Stainless Steel Wire Mesh | 304L(UNS S30403) Stainless Steel Wire Mesh |
| Carbon Content | ≤ 0.08% | ≤ 0.03% |
| Corrosion Resistance | Good | Better in welded structures |
| Weldability | Excellent, may need post-weld annealing | Superior, no post-weld annealing required |
| Tensile Strength | Higher | Slightly lower |
| Applications | General industrial, architectural, food processing | Extensive welding, chemical, petrochemical, marine environments |
Mesh Width
304 stainless steel wire mesh is available in a variety of widths to suit different applications. Standard widths include:
- 36 inches (915 mm)
- 48 inches (1220 mm)
- 60 inches (1524 mm)
- 72 inches (1830 mm)
These widths can be customized further to meet specific requirements.
Mesh Opening
The mesh opening size of 304 stainless steel wire mesh can vary significantly depending on the application. Common mesh openings include:
- 200 mesh (0.001 inches or 0.0254 mm) for very fine filtration
- 100 mesh (0.005 inches or 0.127 mm) for medium filtration
- 60 mesh (0.01 inches or 0.254 mm) for coarse filtration
- 10 mesh (0.1 inches or 2.54 mm) for general industrial applications
Custom mesh openings are available to meet precise filtration and separation needs.
Wire Diameter
304 stainless steel wire mesh is available in various wire diameters to suit different applications. Common wire diameters include:
- 0.001 inches (0.0254 mm) (33 BWG): For very fine meshes and delicate applications
- 0.005 inches (0.127 mm) (36 BWG): For medium meshes
- 0.01 inches (0.254 mm) (28 BWG): For general purpose meshes
- 0.04 inches (1.016 mm) (18 BWG): For heavy-duty meshes
BWG is a standardized wire gauge system used to denote wire diameter. Custom wire diameters can be manufactured to match specific project requirements.
Roll Length
Standard roll lengths for 304 stainless steel wire mesh are designed to accommodate various industrial uses:
- 50 feet (15 meters)
- 100 feet (30 meters)
Custom roll lengths can be manufactured to match specific project requirements.
Finishing
Finishing options for 304 stainless steel wire mesh include:
- Mill Finish: The natural finish after the weaving process.
- Polished Finish: For applications requiring a smooth and shiny surface.
- Electro-polished Finish: Enhanced corrosion resistance and aesthetic appeal.
Customized finishes are available based on application needs.
Weave Types
304 stainless steel wire mesh is available in various weave types, each suited for different applications:
- Plain Weave: The most common, providing uniformity and strength.
- Dutch Weave: Offers a tighter weave for finer filtration.
- Twill Weave: Allows for finer mesh with increased strength.
- Twilled Dutch Weave: Combines twill and Dutch weaves for high-pressure filtration.
- Herringbone Weave: Provides an aesthetically pleasing pattern with enhanced strength.
- Five Heddle Weave: Offers high stability and flow rates, ideal for heavy-duty filtration.
Specialized weave types can be produced for unique applications.
Crimp Style
The crimp style of 304 stainless steel wire mesh affects its rigidity and strength:
- Lock Crimp: Ensures the mesh remains tight and stable, providing high rigidity.
- Double Crimp: Provides extra stability and rigidity with crimps in both directions.
- Intercrimp: Offers a high degree of stability with crimps at intersections, suitable for larger openings.
- Flat Top: Provides a smooth surface on one side, reducing wear and tear and improving product handling.
Customized crimp styles are available to meet specific needs.
Construction Type
304 stainless steel wire mesh can be constructed in various forms:
- Woven Wire Mesh: Standard construction for uniformity.
- Welded Wire Mesh: Provides extra strength and stability.
- Knitted Wire Mesh: Offers flexibility and is used in specific filtration applications.
Special construction types can be developed for specialized uses.
Edge Reinforcement
Edge reinforcement options for 304 stainless steel wire mesh include:
- Plain Edge: Standard finish for most applications.
- Reinforced Edge: Provides additional strength and durability.
- Selvage Edge: Prevents fraying and increases longevity.
Customized edge reinforcements are available based on application requirements.
Packaging
304 stainless steel wire mesh is packaged to ensure safe transportation and storage:
- Rolls: Standard for most wire meshes, typically wrapped in plastic and placed in wooden crates.
- Sheets: Cut to size and stacked, often with protective layers between sheets.
Customized packaging options can be arranged to meet specific logistical needs.
Mesh Count Table
This table provides a general comparison of mesh count and wire diameter for 304 stainless steel wire mesh.
| Mesh Count | Wire Diameter (mm) | Wire Diameter (BWG) |
| 2 | 1.600 | 16 |
| 3 | 1.400 | 17 |
| 4 | 1.191 | 18 |
| 6 | 0.914 | 20 |
| 8 | 0.711 | 22 |
| 10 | 0.610 | 24 |
| 12 | 0.559 | 25 |
| 14 | 0.457 | 27 |
| 16 | 0.457 | 27 |
| 18 | 0.406 | 28 |
| 20 | 0.356 | 30 |
| 24 | 0.356 | 30 |
| 30 | 0.305 | 32 |
| 32 | 0.254 | 33 |
| 40 | 0.229 | 34 |
| 48 | 0.203 | 36 |
| 50 | 0.203 | 36 |
| 60 | 0.152 | 38 |
| 80 | 0.127 | 40 |
| 100 | 0.102 | 42 |
| 120 | 0.089 | 43 |
| 150 | 0.064 | 45 |
| 200 | 0.053 | 46 |
| 250 | 0.041 | 48 |
| 300 | 0.032 | 50 |
| 400 | 0.025 | 52 |
Welded Wire Mesh – 304 Stainless Steel (Medical Grade)
This section details the specifications of various welded wire mesh options available in 304 stainless steel (medical grade).
Wire Diameter: 2.0 MM
- Mesh Size: 4′ x 100′
- Mesh Size: 1″ x 1″
- Mesh Size: 3″ x ½”
- Mesh Size: 1″ x ½”
Wire Diameter: 2.5 MM
- Mesh Size: 1219 x 3048 MM (4′ x 100′)
- Mesh Size: 25.4 x 25.4 MM (1″ x 1″)
- Mesh Size: 76.2 x 12.7 MM (3″ x ½”)
- Mesh Size: 25.4 x 12.7 MM (1″ x ½”)
Welded 304 Stainless Steel Mesh – Available for Shipment within the USA
Mesh Material: 304 Stainless Steel (Medical Grade)
Mesh Roll Dimensions:
- Length: 25 meters (82.02 feet)
- Width: 1.8 meters (5.9 feet)
Mesh Specifications:
- Wire Diameter: 0.65 mm (0.026 inches)
- Mesh Opening: 19.05 mm x 19.05 mm (¾ inch x ¾ inch)
Precision Woven Stainless Steel Wire Mesh
Our precision woven stainless steel wire mesh available in two variants: SD 40/25 and SD 42/36.
Material: DIN 1.4301 / AISI 304 (equivalent)
Mesh Specifications:
- Part Number: SD 40/25, SD 42/36
- Aperture Size: 40 µm for SD 40/25, 42 µm for SD 42/36
- Wire Diameter: 25 µm for SD 40/25, 36 µm for SD 42/36
- Mesh Count: 400 and 325 wires per 25.4 mm (1 inch), for SD 40/25 and SD 42/36 respectively
Open Area: 38% for SD 40/25, 29% for SD 42/36
Thickness: 50 µm ± 2 µm for SD 40/25, 76 µm ± 2 µm for SD 42/36
Notes:
µm refers to micrometers.
Mesh count refers to the number of wires per linear inch (25.4 mm).
Stainless Steel Wire Mesh (Type 304)
Mesh Specifications:
- Aperture (Opening): 3 mm x 3 mm (equivalent to 0.118 inches x 0.118 inches)
- Wire Diameter: 0.08 mm (equivalent to 0.003 inches)
Mesh Dimensions:
- Width: 36 inches (standard width can be provided)
- Length: Standard roll length
What is ASTM A167 Type 304 Wire Mesh?
ASTM A167 Type 304 wire mesh is a versatile and durable stainless steel product that meets ASTM A167 specifications for corrosion-resistant sheet steel and strip. Made from austenitic chromium-nickel steel with 18% chromium and 8% nickel, it offers excellent strength and resistance to oxidation and corrosion. Featuring a uniform weave pattern, it is commonly used in filtration, sieving, and architectural design due to its robustness and aesthetic appeal. Key advantages include high tensile strength, resistance to rust and chemical damage, and ease of fabrication and cleaning, making it suitable for both industrial and commercial applications.
Key Features of ASTM A167 Type 304:
- Material: Austenitic chromium-nickel steel (Type 304)
- Chemical Composition:
- Minimum 18% chromium for enhanced corrosion resistance
- Minimum 8% nickel for improved strength and ductility at high temperatures
Applications:
- Filtration
- Sieving
- Architectural Design
- Industrial Applications
Square mesh wire mesh made from SS304 stainless steel, compliant with ASTM A167 Type 304 standard.
- Material: Stainless Steel 304 (ASTM A167 Type 304)
- Mesh Specifications:
- Aperture (Square): 25 mm
- Wire Diameter: 1.6 mm
- Form of Supply: Roll
