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High Strength Duplex Stainless Steel Woven Wire Mesh for Corrosion Resistance, Filtration, and Industrial Applications
Super duplex stainless steel woven mesh is a premium corrosion-resistant mesh woven from duplex alloy wires that combine austenitic and ferritic microstructures with added molybdenum (Mo) for enhanced performance. This high-strength mesh provides outstanding resistance to pitting, crevice, and stress corrosion cracking, particularly in chloride-rich and acidic environments. The addition of molybdenum significantly improves its mechanical properties and long-term durability.
It is primarily produced in two grades: UNS S32750, known for excellent chloride corrosion resistance, high tensile strength, and weldability; and UNS S31803, which offers strong impact toughness, good localized corrosion resistance, and superior thermal conductivity.
With its low thermal expansion and high mechanical strength, super duplex stainless steel woven mesh is ideal for use in extreme industrial environments, including oil and gas, desalination, chemical processing, and food-grade filtration systems. Its robust construction and corrosion resistance make it a reliable solution for both structural and filtration applications.
Доступные виды плетения
Простое плетение
Простое плетение — это самый простой и распространенный способ плетения проволочной сетки. В этой конструкции каждая проволока попеременно проходит над и под одной проволокой как в продольном (основание), так и в поперечном (уток) направлениях, образуя перекрестный узор с квадратными отверстиями. Эта простая структура обеспечивает хороший баланс между фильтрацией и скоростью потока, что делает ее подходящей для применений, где требуется умеренное удержание частиц и постоянный поток. Присущая ей прочность и долговечность также делают ее надежным выбором для задач фильтрации общего назначения.
Твиловое переплетение
Твиловое плетение — это более сложный узор, при котором каждая проволока проходит над двумя другими проволоками и под двумя другими, со смещением в каждом ряду, что создает характерный диагональный вид. Такая конструкция позволяет получить более плотную сетку с меньшими отверстиями по сравнению с простым плетением, даже при использовании проволок одинакового диаметра. В результате саржевое плетение обеспечивает более тонкую фильтрацию, сохраняя при этом более высокую скорость потока благодаря увеличенной площади открытых ячеек. Оно идеально подходит для применений, требующих улучшенного удержания частиц без существенного снижения производительности по жидкости.
Various Standards of Duplex Stainless Steel Mesh Material
| AISI | UNS | DIN | SAF | GB/T |
| 2205 | S31803 | 1.4462 | 2205 | 022Cr22Ni5Mo3N |
| 2507 | S32750 | 1.441 | 2507 | 022Cr25Ni7Mo4N |
Химический состав материалов
| Chemical Composition of Duplex Stainless Steel Woven Wire Mesh | ||
| Element | UNS S32750 (%) | UNS S31803 (%) |
| Chromium (Cr) | 24.0 – 26.0 | 21.0 – 23.0 |
| Nickel (Ni) | 6.0 – 8.0 | 4.5 – 6.5 |
| Molybdenum (Mo) | 3.0 – 5.0 | 2.5 – 3.5 |
| Nitrogen (N) | 0.24 – 0.32 | 0.08 – 0.20 |
| Manganese (Mn) | ≤ 1.2 | ≤ 2.0 |
| Carbon (C) | ≤ 0.030 | ≤ 0.030 |
| Silicon (Si) | ≤ 0.8 | ≤ 1.0 |
| Phosphorus (P) | ≤ 0.035 | ≤ 0.030 |
| Sulfur (S) | ≤ 0.020 | ≤ 0.020 |
| Iron (Fe) | Balance | Balance |
Mechanical Properties
| Mechanical Properties of Super Duplex Stainless Steel Woven Wire Mesh | |||
| Property | UNS S32750 | UNS S31803 | Unit |
| Tensile Strength | ≥ 795 | ≥ 620 | MPa |
| Yield Strength (0.2% offset) | ≥ 550 | ≥ 450 | MPa |
| Elongation (in 50mm) | ≥ 15 | ≥ 25 | % |
| Hardness (Brinell) | ≤ 293 | ≤ 290 | HB |
| Impact Toughness (Charpy V) | ≥ 60 | ≥ 45 | J @ -46°C |
| Modulus of Elasticity | ~200 | ~200 | GPa |
| Thermal Conductivity | 14 | 19 | W/m·K @ 100°C |
| Coefficient of Thermal Expansion | 13.5 | 13 | µm/m·K (20–100°C) |
| Density | 7.8 | 7.8 | g/cm³ |
Advantages of Duplex Stainless Steel Woven Wire Mesh
- Exceptional Corrosion Resistance
Excellent resistance to organic and inorganic acids, especially chlorides and diluted hydrochloric acid. - Outstanding Mechanical Strength
High tensile and compressive strength, suitable for high-pressure and impact environments. - Superior Pitting and Crevice Corrosion Resistance
Ideal for marine and chemical environments prone to localized corrosion. - Good Weldability and Fabrication
Easily formed and welded for complex structures and systems. - Thermal Stability
Low thermal expansion and high thermal conductivity for use in high-temperature or cycling environments. - Long Service Life
Reduced maintenance and replacement costs in critical industrial operations.
Specification of Duplex Stainless Steel Woven Wire Mesh
| Specification of Duplex Stainless Steel Woven Wire Mesh | |||||
| Mesh/Inch | S.W.G | Aperture (mm) | Wire Diameter (mm) | Open Area (%) | Weight (Kg/m2) |
| 3 | 14 | 6.27 | 2.2 | 62 | 7 |
| 3 | 18 | 7.25 | 1.219 | 70 | 2.5 |
| 3.5 | 20 | 6.34 | 0.914 | 66 | 1.8 |
| 4 | 16 | 4.72 | 1.63 | 58 | 5 |
| 4 | 20 | 5.45 | 0.914 | 76 | 2.1 |
| 4.5 | 22 | 4.93 | 0.711 | 71 | 1.2 |
| 5 | 18 | 3.86 | 1.22 | 57 | 3.6 |
| 5 | 22 | 4.36 | 0.711 | 76 | 1.3 |
| 6 | 18 | 3.04 | 1.22 | 50 | 4.3 |
| 6 | 22 | 3.52 | 0.711 | 63 | 1.6 |
| 8 | 20 | 2.26 | 0.91 | 43 | 3.2 |
| 8 | 24 | 2.5 | 0.559 | 67 | 1.5 |
| 10 | 20 | 1.63 | 0.91 | 41 | 4 |
| 10 | 26 | 2.08 | 0.46 | 67 | 1.1 |
| 12 | 22 | 1.41 | 0.71 | 43 | 2.9 |
| 12 | 26 | 1.74 | 0.457 | 68 | 1.4 |
| 14 | 26 | 1.36 | 0.46 | 57 | 1.4 |
| 16 | 28 | 1.21 | 0.376 | 55 | 1.2 |
| 18 | 30 | 1.1 | 0.315 | 60 | 0.85 |
| 20 | 30 | 0.95 | 0.315 | 58 | 0.95 |
| 22 | 32 | 0.88 | 0.274 | 57 | 0.8 |
| 24 | 32 | 0.78 | 0.274 | 55 | 0.85 |
| 26 | 32 | 0.74 | 0.274 | 51 | 0.7 |
| 28 | 34 | 0.67 | 0.234 | 50 | 0.75 |
| 30 | 34 | 0.61 | 0.234 | 48 | 0.8 |
| 32 | 34 | 0.56 | 0.234 | 50 | 0.84 |
| 36 | 34 | 0.47 | 0.234 | 45 | 0.95 |
| 38 | 36 | 0.48 | 0.193 | 46 | 0.7 |
| 40 | 36 | 0.44 | 0.193 | 50 | 0.8 |
| 50 | 38 | 0.36 | 0.152 | 46 | 0.58 |
| 60 | 40 | 0.3 | 0.122 | 50 | 0.45 |
| 80 | 40 | 0.198 | 0.12 | 44 | 0.58 |
| 100 | 42 | 0.154 | 0.1 | 37 | 0.5 |
| 120 | 44 | 0.13 | 0.081 | 40 | 0.39 |
| 130 | 45 | 0.125 | 0.07 | 41 | 0.325 |
| 140 | 45 | 0.111 | 0.07 | 38 | 0.35 |
| 150 | 46.5 | 0.115 | 0.055 | 48 | 0.206 |
| 160 | 46 | 0.097 | 0.61 | 32 | 0.3 |
| 170 | 47 | 0.09 | 0.05 | 41 | 0.213 |
| 180 | 47 | 0.09 | 0.051 | 410 | 0.24 |
| 190 | 47 | 0.083 | 0.051 | 40 | 0.24 |
| 200 | 48 | 0.086 | 0.041 | 46 | 0.17 |
| 220 | 48 | 0.074 | 0.041 | 41 | 0.19 |
| 240 | 48 | 0.065 | 0.041 | 39 | 0.2 |
| 250 | 48 | 0.061 | 0.041 | 38 | 0.22 |
| 260 | 48 | 0.057 | 0.041 | 34 | 0.22 |
| 280 | 49 | 0.06 | 0.031 | 31 | 0.14 |
| 300 | 49 | 0.054 | 0.031 | 40 | 0.15 |
| 320 | 49 | 0.048 | 0.031 | 39 | 0.16 |
| 350 | 49 | 0.042 | 0.031 | 36 | 0.16 |
| 400 | 50 | 0.0385 | 0.025 | 39 | 0.013 |
| 450 | 50 | 0.0314 | 0.025 | 37 | 0.14 |
| 500 | 50 | 0.0258 | 0.025 | 35 | 0.156 |
Applications of Duplex Stainless Steel Woven Wire Mesh
UNS S32750 Mesh Applications:
- Oil & gas industry filtration and structural components
- Seawater desalination filters and pumps
- Power plant and chemical absorption tower units
- Pressure vessels and storage tanks
- Offshore platforms and seawater systems
UNS S31803 Mesh Applications:
- Filtration in pulp and paper industry
- Petrochemical process filters
- Food processing equipment and components
- Wastewater treatment and purification systems
- Paper bleaching and drying systems
General Industrial Applications:
- High-pressure pipelines and heat exchangers
- Combustion gas purification equipment
- Structural mesh in corrosion-prone environments
- Water treatment and clean water supply systems
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