304 Stainless Steel Plain Weave Mesh
High-quality 304 stainless steel plain woven wire mesh for filtration, screening and separation.
Mesh Count
20–325
Wire Diameter
0.035–0.4 mm
Aperture
0.043–0.87 mm
Open Area
30.1–46.9%
Material
304 Stainless Steel
Standard Specs
6
Sample
Available
Official Standard Tolerance SKU Matrix
Select and lock exact sub-specifications (supports batch multi-spec consolidated inquiry)
| Nominal Mesh Count | Std. Wire Dia. (mm)Std. Wire Dia. (inch / Gauge) | Aperture Size (mm)Aperture Size (inch) | Ref. Open Area | Est. Weight (kg/m²)Est. Weight (lb/ft²) | Micro Link | |
|---|---|---|---|---|---|---|
| 20 Mesh | 0.400 mm0.01570" | 0.870 mm0.03430" | 46.9% | 1.60 kg/m²0.3300 lb/sq.ft | ||
| 40 Mesh | 0.250 mm0.00980" | 0.385 mm0.01520" | 36.8% | 1.25 kg/m²0.2600 lb/sq.ft | ||
| 80 Mesh | 0.120 mm0.00470" | 0.198 mm0.00780" | 38.8% | 0.58 kg/m²0.1200 lb/sq.ft | ||
| 120 Mesh | 0.080 mm0.00310" | 0.132 mm0.00520" | 38.8% | 0.38 kg/m²0.0800 lb/sq.ft | ||
| 200 Mesh | 0.050 mm0.00200" | 0.077 mm0.00300" | 36.8% | 0.25 kg/m²0.0500 lb/sq.ft | ||
| 325 Mesh | 0.035 mm0.00140" | 0.043 mm0.00170" | 30.1% | 0.20 kg/m²0.0400 lb/sq.ft |
100X Simulated Microscope Lens View (Auxiliary Physical Design)
Typical Applications
Where 304 plain weave mesh is most commonly specified by our buyers across filtration, screening and separation duties.
- Chemical filtration
- food processing
- mining screening
- architectural panels
Metallurgical Composition & Alloy Ratio Analysis
304 Wire Purity & Heat Traceability
Every 304 wire batch for this product family is spectrometer-tested before weaving. The Cr 18-20% / Ni 8-10.5% balance below is what gives this mesh its corrosion resistance in freshwater, steam and most food-processing environments, and each shipment includes an EN 10204 3.1 mill certificate tied to the wire heat number.
- C: ≤0.08
- Cr: 18-20
- Ni: 8-10.5
- Mn: ≤2.0
- Si: ≤1.0
- Fe: Balance
304 Physical & Service Limits
- Max Oxidation Temperature：Resists scaling in continuous air service up to 870°C; intermittent service limit is 925°C.
- Sensitization Warning：Holding 304 in the 425-860°C range precipitates chromium carbides at grain boundaries. For welded filter assemblies, ask us about the low-carbon 304L version of this mesh.
- Yield Strength：205 MPa minimum in annealed condition, rising to 310 MPa after the cold-drawing used for weaving wire, which keeps apertures stable under tension.
- Food Contact：Complies with FDA food-contact requirements, suitable for direct use in food, dairy and pharmaceutical processing lines.
ASTM E2016-22 Reference Tolerances for 304 Plain Weave
This family's 20-325 mesh range spans the tolerance bands referenced by ASTM E2016-22. Confirm the applicable band in your purchase order or incoming inspection plan, and request actual measured values in the pre-shipment report.
| Nominal Mesh Range | Max Wire Dia. Tolerance | Max Aperture Size Tolerance | Warp Tilt Deviation |
|---|---|---|---|
| 1 to 50 Mesh | ± 0.013 mm (0.0005 inch) | ± 3% of nominal aperture | Tilt deviation ≤ 2° |
| 51 to 200 Mesh | ± 0.008 mm (0.0003 inch) | ± 5% of nominal aperture | Tilt deviation ≤ 1.5° |
| 201 to 400 Mesh | ± 0.004 mm (0.00015 inch) | ± 8% of nominal aperture | Tilt deviation ≤ 1° |
Custom Processing for Woven Mesh · Quality Assurance for Woven Mesh · Packaging & Logistics
Custom Processing for Woven Mesh
Deep-processing services available on woven mesh rolls before shipment.
Precision Slitting
Woven rolls slit down to 5.0 mm width on high-precision slitting lines, with clean, burr-controlled edges ready for filter element production.
Disc Stamping & Spot Welding
Single or multi-layer woven mesh filter discs stamped and spot-welded per your CAD drawings, including rimmed and bound-edge versions.
Cutting & Edging
Custom sheet cutting, edge folding and framing so the mesh drops directly into your production line without secondary trimming.
Quality Assurance for Woven Mesh
Every exported batch of woven mesh is verified against documented inspection standards.
EN 10204 3.1 MTC
Mill test certificates covering heat number, wire composition and tensile data shipped with every order.
Spectrometer Verification
Handheld PMI spectrometer sampling on wire batches confirms alloy grade before weaving, eliminating mixed-grade risk.
Pre-shipment Inspection
Mesh count, wire diameter and aperture are re-measured batch by batch against ASTM E2016-15 tolerances before container loading.
Packaging & Logistics
Export-standard packing engineered for woven mesh rolls on long-distance sea freight.
Standard Rolls
30 m or 100 ft roll lengths in standard widths from 0.5 m to 1.5 m; custom width and roll length available on request.
Moisture-proof Packing
Waterproof kraft paper inner wrap plus woven bag or palletized outer packing to prevent rust and edge deformation in transit.
Container Loading
Optimized 20GP / 40HQ loading plans with photos and loading reports shared before vessel departure.
Trade Terms
FOB Tianjin or CIF major ports; DHL, FedEx and SF Express available for sample shipments worldwide.
Technical Purchasing FAQ
Related Product Families
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