Ninthore Overseas Is One Of The Leading Manufacturer And Exporter Of High Quality Duplex Steel S31803 Beam And Other Duplex Steel Products, where while welding, extensive heat supply should be avoided to the weld component. Duplex Steel S31803 Angle offers great resistance in the strong acidic and alkali media and prevents pitting, crevice corrosion and SCC. Our Duplex Steel S32205 Chain also offers wide resistance to wet chloride gas, hypochlorite and chlorine dioxide media. Duplex Steel S31803 C-Channel prevents the localized and the inter – granular corrosion in the presence of strong acids such as sulphuric acid, phosphoric acid, hydrochloric acid, nitric acid and organic acid.

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Duplex Steel S31803 Beam

Duplex Steel S31803 Beam

Our Duplex Steel S32205 I-Beam provides excellent corrosion resistance to the entire magnitudes of sulphuric acid up to 95 Degree C or 200 Degree F. Duplex Steel S31803 H-Beam is suitable for use in the highest temperature media in FGD system and its components such as fan wheels, dampers, liquid spray and pipes. Our Duplex Steel S32205 T-Beam produced by us is valued in the diverse industrial fields such as paper.

The high quality Duplex Steel S31803 Chain is supplied by our highly experienced professionals with the use of advanced machinery to the customers across the world. The cut to size of our Duplex Steel S32205 Angle can be cut to size and shape by following your design needs and the whole process is exclusively monitored by our independent quality systems.

Duplex S31803/S32205 Angle, Channel, Beam, Chain Specifications
Specifications : ASTM A276/ASME SA276
Dimensions : EN, DIN, JIS, ASTM, BS, ASME, AISI
Duplex S31803/S32205 Angle
: 5mm to 9mm
Duplex S31803/S32205 Channel
: 40mm*20mm~300mm*300mm
Duplex S31803/S32205 Beam : 3″ thru 12.31″
Duplex S31803/S32205 Chain
: 1/8 inch – 1/2 inch Diameter
: 3.0mm – 120mm
Length : 3MTR, 4MTR, 5MTR, 6MTR, or Custom Cut Sizes
Type : Angle, C Channel, U Channel, H Beam, I Beam, T Beam, W Beam, Chain
S31803/S32205 Duplex Angle, Channel, Beam, Chain Chemical Composition
Grade C Mn Si P S Cr Mo Ni N Fe
Duplex S31803 0.030 max 2.00 max 1.00 max 0.030 max 0.020 max 22.0 – 23.0 3.0 – 3.5 4.50 – 6.50 0.14 – 0.20 63.72 min
Duplex S32205 0.030 max 2.00 max 1.00 max 0.030 max 0.020 max 21.0 – 23.0 2.5 – 3.5 4.50 – 6.50 0.8 – 0.20 63.54 min
Duplex S31803/S32205 Angle, Channel, Beam, Chain Mechanical Properties
Grades Density (g/cm 3) Density (lb/in 3) Melting Point (°C) Melting Point (°F)
S31803 / S32205 7.805 0.285 1420 – 1465 2588 – 2669
Equivalent Grades for S31803/S32205 Duplex Angle, Channel, Beam, Chain
Duplex S31803/S32205 1.4462 S31803 / S32205
SS S31803/S32205 Angle, Channel, Beam, Chain 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
S31803/S32205 Steel Angle, Channel, Beam, Chain 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)