321 stainless steel wire mesh is a stabilized austenitic stainless steel mesh widely used in high-temperature and corrosive environments. By adding titanium to stabilize chromium carbide precipitation, it greatly improves intergranular corrosion resistance after welding or heating.
With outstanding heat resistance, mechanical performance and durability, 321 stainless steel wire mesh has become a preferred material for industries such as aerospace, power generation, furnace manufacturing, exhaust treatment and high-temperature filtration.
Key Properties of 321 Stainless Steel Wire Mesh
1. Excellent High Temperature Resistance
321 stainless steel wire mesh performs stably under continuous high-temperature conditions, with an operating temperature range from -270°C up to 900°C.
It maintains good strength and structure without deformation or embrittlement, making it ideal for high-temperature filters, heat shields, furnace components and exhaust equipment.
2. Superior Weldability & Corrosion Resistance
Titanium stabilizes the material and prevents chromium carbide precipitation, so 321 mesh has excellent intergranular corrosion resistance after welding or heating.
It performs well in mildly corrosive environments such as chemical pipelines, steam systems, exhaust gases and industrial waste gas treatment.
3. High Mechanical Strength & Ductility
321 stainless steel wire mesh has high tensile strength, good toughness and ductility.
It is not easy to break or tear under pressure, impact or vibration, and can be easily cut, formed, welded and processed into filter cylinders, discs, caps and custom parts.
4. Good Creep Resistance
Under long-term high-temperature stress, 321 stainless steel shows strong creep resistance, which ensures long service life in high-temperature equipment such as boilers, heat exchangers and industrial furnaces.
5. Wide Compatibility
It is compatible with many media including steam, weak acids, alkalis, oils and gases, making it suitable for harsh industrial environments where 304 mesh is not sufficient.
Common Specifications of 321 Stainless Steel Wire Mesh
- Material: 321 / 1.4541 stainless steel
- Weave types: Plain weave, twill weave, Dutch weave
- Mesh count: 1 mesh – 350 mesh
- Wire diameter: 0.05mm – 2.0mm
- Standard size: 1m × 2m, 1.22m × 2.44m, customizable
- Surface: Bright, pickled, electrolytic polished
Main Applications of 321 Stainless Steel Wire Mesh
1. High-Temperature Filtration
321 mesh is widely used in high-temperature gas filtration, furnace filters, heat treatment equipment, and high-temperature dust collection systems where heat stability is critical.
2. Exhaust & Emission Systems
Due to its excellent heat and corrosion resistance, it is widely used in automotive exhaust filters, engine exhaust purification, industrial flue gas treatment and catalytic conversion devices.
3. Aerospace & Aviation
It is used in engine components, high-temperature shielding, insulation mesh, filtration parts and high-temperature-resistant structural parts in the aerospace industry.
4. Power & Boiler Industry
321 stainless steel wire mesh is used in boiler filters, heat exchangers, steam pipeline filtration and high-temperature pipeline protection.
5. Industrial Furnaces & Thermal Equipment
It serves as high-temperature separation mesh, heat insulation mesh, conveying mesh and support mesh in industrial furnaces, kilns and drying equipment.
6. Petrochemical & Chemical Processing
Used for high-temperature fluid filtration, pipeline filters, reactor screens and separation components in petrochemical and chemical plants.
7. Custom Filter Components
321 wire mesh can be processed into:
- Filter cylinders / filter tubes
- Filter discs / filter sheets
- Filter caps / filter baskets
- High-temperature resistant filter elements
Why Choose 321 Stainless Steel Wire Mesh?
- Best for high-temperature and welding environments
- Stronger heat resistance than 304
- Better corrosion resistance after welding
- Long service life in harsh conditions
- Stable performance under continuous high temperature
Conclusion
321 stainless steel wire mesh is a professional high-performance metal mesh designed for high-temperature, high-stress and corrosive applications.
It combines excellent heat resistance, weldability, mechanical strength and corrosion resistance, making it irreplaceable in aerospace, automotive exhaust, industrial furnaces, power generation and high-temperature filtration systems.
For projects requiring stability under extreme heat, 321 stainless steel wire mesh is a reliable and cost-effective solution.
