Views: 0 Author: Site Editor Publish Time: 2026-04-21 Origin: Site
SS304 (AISI 304) is the standard “18/8” stainless steel – 18% chromium, 8% nickel. China ss304 stainless steel wire mesh is produced in enormous volumes for domestic and export markets. This article provides a complete technical overview, including chemical composition, mechanical properties, common mesh specifications, and quality assurance practices.
| Element | Percentage (%) |
|---|---|
| Chromium (Cr) | 18.0 – 20.0 |
| Nickel (Ni) | 8.0 – 10.5 |
| Carbon (C) | ≤ 0.08 |
| Manganese (Mn) | ≤ 2.0 |
| Silicon (Si) | ≤ 1.0 |
| Phosphorus (P) | ≤ 0.045 |
| Sulfur (S) | ≤ 0.030 |
| Iron (Fe) | Balance |
This composition gives SS304 its characteristic corrosion resistance, formability, and weldability.
| Property | Typical Value |
|---|---|
| Tensile strength (wire) | 500 – 750 MPa |
| Yield strength | 200 – 300 MPa |
| Elongation at break | 40 – 55% |
| Hardness (Brinell) | ≤ 201 HB |
| Modulus of elasticity | 193 GPa |
Note: Values depend on wire drawing and annealing condition.
| Mesh count | Wire dia (mm) | Opening (μm) | Open area % | Typical roll width |
|---|---|---|---|---|
| 20×20 | 0.40 | 870 | 70% | 1.0 – 1.5 m |
| 40×40 | 0.25 | 385 | 58% | 1.0 – 1.5 m |
| 60×60 | 0.15 | 273 | 55% | 1.0 – 1.2 m |
| 80×80 | 0.12 | 198 | 49% | 1.0 m |
| 100×100 | 0.10 | 154 | 45% | 1.0 m |
| 120×120 | 0.0635 | 148 | 45% | 1.0 m |
| 200×200 | 0.053 | 74 | 34% | 1.0 m |
Reputable producers of china ss304 stainless steel wire mesh implement:
Raw material verification – Spectrometer analysis of incoming wire rod.
In‑process checks – Loom tension monitoring, visual inspection for broken weft.
Final inspection – Random sampling of openings using optical comparator or microscope.
Packaging – Rolls are wound on plastic or cardboard cores, wrapped with VCI (vapor corrosion inhibitor) paper, and packed in plywood cases or pallets.
One nuance often overlooked is the difference between 304 and 304L. The “L” grade has lower carbon (≤0.03%), which reduces the risk of intergranular corrosion after welding. For mesh that will be welded into filter elements, 304L is preferred. For general screening, standard 304 is adequate and often less expensive.
Another insight: electropolishing SS304 mesh after weaving can improve corrosion resistance and cleanability by removing surface impurities and micro‑burrs. This is beneficial for food and pharmaceutical applications.
Q1: Is SS304 mesh magnetic?
A: In the annealed (soft) condition, SS304 is essentially non‑magnetic. However, cold working during weaving can induce slight magnetism. This does not affect corrosion resistance.
Q2: Can SS304 mesh be used with acidic solutions?
A: SS304 resists many organic acids and dilute mineral acids at room temperature. For strong acids (e.g., concentrated sulfuric, hydrochloric) or elevated temperatures, 316 or higher grades are necessary.
Q3: How do I clean heavily fouled SS304 mesh?
A: Soaking in a warm (50–60°C) mild alkaline detergent followed by ultrasonic cleaning is effective. For scale removal, use a passivating acid solution (e.g., 10% nitric acid), then rinse thoroughly.
China ss304 stainless steel wire mesh is a versatile, cost‑effective material for thousands of applications. By understanding its composition, mechanical limits, and available specifications, buyers can confidently select the right mesh for their needs. Anping Milesen Metal Net Products Co., Ltd. supplies high‑quality SS304 mesh with full material traceability and export packaging.
