Ninthore Overseas Is One Of The Leading Manufacturer And Exporter Of High Quality Duplex S31803 Wire Mesh, which has superior corrosion resistance compares to SS 304 and SS 316. The general use for our Duplex S31803 Hexagonal Wire Mesh is in the manufacture of chemicals such as sulphuric and phosphoric acids. General corrosion resistance of this Duplex S32205 Welding Wire Mesh is characterized by uniform attack on a flat surface in contact with a corrosive media. Pitting corrosion resistance increases in our Duplex S31803 Netting Wire Mesh with increasing chromium, molybdenum, and nitrogen contents.

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Nickel Alloy 201 Wire Mesh

Nickel Alloy 201 Wire Mesh

As such, this Duplex S32205 Woven Wire Mesh shows higher PREN (Pitting Resistance Equivalent Number) values than the typical austenitic grades. When exposed to standard medium of H2S sour gas for duration of 720 hours, our Duplex S31803 Spring Steel Wire Mesh has results that are comparable to a super – austenitic 904L. This Duplex S32205 Fencing Wire Mesh is chemically balanced to obtain a two phase ferrite and austenite structure containing between 40 % to 60 % ferrite.

A typical structure of our Duplex S31803 Fencing Wire Mesh is shown when the material was hot rolled and solution annealed. This Duplex S32205 Spring Steel Wire Mesh is sensitive to the precipitation of inter – metallic phases that can degrade the corrosion resistance and mechanical properties. Meanwhile, the high strength of our Duplex S31803 Woven Wire Mesh can pose problems.

Duplex 31803 / S32205 Wiremesh Specifications
Specifications : ASTM A276, A479 / ASME SA276, SA479
Standard : ASTM, ASME
Size : 10 mm To 100 mm Dia in 100 mm TO 6000 mm Length
Types : Wire Mesh, Hexagonal Wiremesh, Welding Wiremesh, Netting Wiremesh, Woven Wiremesh, Spring Steel wire mesh, Fencing Wiremesh etc.
Duplex Steel S31803 / S32205 Wire Mesh Chemical Composition
S31803 / S32205 C N P Si Mn Mo Fe Cr S Ni
1.0 0.03 0.02 2.0 3.0 – 3.5 22.0 – 23.0 0.03 4.5 – 6.5 0.14 – 0.2 Bal
Duplex UNS S31803 / S32205 Wiremesh Mechanical Properties
S31803 / S32205 Density Melting Point Yield Strength (0.2%Offset) Tensile Strength Elongation
7.8 g/cm3 1350 °C (2460 °F) Psi – 80000 , MPa – 550 Psi – 116000 , MPa – 800 15 %
Equivalent Grades for UNS S31803 / S32205 Wiremesh
Duplex S31803 S31803 1.4462
Duplex S32205 S32205 1.4462
Duplex UNS S31803 / S32205 Wire Mesh Application Industries
  • Off-Shore Oil Drilling Companies
  • Power Generation
  • Petrochemicals
  • Gas Processing
  • Specialty Chemicals
  • Pharmaceuticals
  • Pharmaceutical Equipment
  • Chemical Equipment
  • Sea Water Equipment
  • Heat Exchangers
  • Condensers
  • Pulp and Paper Industry
Duplex Steel Wiremesh Test Certificates

We at Ninthore Overseas provide Manufacturer TC (Test Certificate) in accordance to EN 10204/3.1B, Raw Materials Certificate, 100% Radiography Test Report, Third Party Inspection Report. We also provide Standard certificates like EN 10204 3.1 and additional requirement like. NACE MR 01075. FERRIT CONTENT as per norms if requested by clients.

• EN 10204/3.1B,
• Raw Materials Certificate
• 100% Radiography Test Report
• Third Party Inspection Report, etc

Material Testing

We at Ninthore Overseas ensure that all our materials go through strict quality tests before dispatching them to our clients.

• Mechanical Testing Such as Tensile of Area
• Hardness Test
• Chemical Analysis – Spectro Analysis
• Positive Material Identification – PMI Testing
• Flattening Test
• Micro and Macro Test
• Pitting Resistance Test
• Flaring Test
• Intergranular Corrosion (IGC) Test


• Commercial Invoice which includes HS Code
• Packing List including net weight and gross weight, number of boxes, Marks and Numbers
• Certificate of Origin legalized/attested by Chamber of Commerce or Embassy
• Fumigation Certificates
• Raw Material Test Reports
• Material Traceability Records
• Quality Assurance Plan (QAP)
• Heat Treatment Charts
• Test Certificates certifying NACE MR0103, NACE MR0175
• Material Test Certificates (MTC) as per EN 10204 3.1 and EN 10204 3.2
• Guarantee Letter
• NABL approved Laboratory Test Reports
• Welding Procedure Specification/Procedure Qualification Record, WPS/PQR
• Form A for the purposes of the Generalized System of Preferences (GSP)