Duplex Steel UNS S32205 Welded Pipes Manufacturer in India

Manufacturer & Stockist of Duplex Steel UNS S32205 Welded Pipes

Kamal Steels is a leading Manufacturer and Stockist of Duplex Steel UNS S32205 Welded Pipes, supplying premium-quality welded piping solutions for industries that require outstanding corrosion resistance, high mechanical strength and dependable long-term performance. Manufactured in accordance with ASTM A790, ASTM A928, and ASME SA790 standards, our welded pipes are produced from premium-grade UNS S32205 / WNR 1.4462 duplex stainless steel, ensuring excellent dimensional accuracy, superior weld integrity and reliable performance in demanding industrial environments.

Duplex Steel UNS S32205 is an enhanced duplex stainless steel grade with a tightly controlled chemical composition that provides improved resistance to pitting, crevice corrosion, chloride stress corrosion cracking and corrosion fatigue compared to conventional stainless steels. Its balanced ferritic-austenitic microstructure offers approximately twice the yield strength of austenitic stainless steels while maintaining excellent toughness, weldability and structural stability. These properties make S32205 welded pipes an ideal solution for large-diameter piping systems operating under high pressure and corrosive service conditions.

Our Duplex Steel UNS S32205 Welded Pipes are available in a comprehensive range of diameters, wall thicknesses, schedules and custom lengths to meet the requirements of offshore platforms, oil & gas processing, petrochemical plants, marine engineering, desalination facilities, chemical processing units, water treatment plants and power generation projects. At Kamal Steels, every welded pipe undergoes stringent quality inspections, including weld testing, hydrostatic testing, Positive Material Identification (PMI), dimensional verification and complete material traceability to ensure full compliance with international quality standards and customer specifications.

ASTM A790 UNS S32205 Duplex 2205 Welded Pipes Manufacturer in India

Why Choose Duplex Steel UNS S32205 Welded Pipes?

Duplex Steel UNS S32205 Welded Pipes are specifically engineered for industrial applications where superior corrosion resistance, high mechanical strength, and dependable weld performance are essential. Manufactured from a premium duplex stainless steel grade with a controlled ferritic-austenitic microstructure, these welded pipes provide excellent resistance to pitting, crevice corrosion, chloride stress corrosion cracking, and corrosion fatigue. Their superior metallurgical properties make them an ideal choice for transporting aggressive chemicals, seawater, and process fluids in demanding operating conditions.

Compared with conventional stainless steel welded pipes, Duplex Steel UNS S32205 Welded Pipes offer significantly higher yield strength, allowing lighter yet stronger piping systems while maintaining excellent structural integrity. The precision welding process ensures uniform weld quality, smooth internal surfaces, and reliable leak-free performance, making these pipes particularly suitable for large-diameter process piping, offshore installations, marine applications, and high-pressure industrial systems where long service life and operational reliability are critical.

At Kamal Steels, every Duplex Steel UNS S32205 Welded Pipe is manufactured using certified raw materials and advanced production technology under stringent quality control procedures. Each pipe undergoes comprehensive testing and inspection to verify weld integrity, dimensional accuracy, corrosion resistance, and compliance with international ASTM and ASME standards before dispatch.

Features & Benefits of Duplex Steel UNS S32205 Welded Pipes

  • Enhanced resistance to pitting and crevice corrosion.
  • Excellent protection against chloride stress corrosion cracking.
  • Higher yield strength than conventional austenitic stainless steels.
  • Superior weld integrity for reliable industrial piping systems.
  • Excellent performance in seawater and marine environments.
  • Outstanding resistance to corrosion fatigue and erosion.
  • Suitable for high-pressure and large-diameter process piping.
  • Smooth internal surface for efficient fluid flow.
  • Excellent fabrication and welding characteristics.
  • Long service life with reduced maintenance requirements.
  • Available in multiple diameters, schedules, and custom lengths.
  • Manufactured in compliance with international quality standards.

Duplex Steel UNS S32205 Welded Pipe Specifications

Kamal Steels manufactures and stocks Duplex Steel UNS S32205 Welded Pipes in accordance with internationally recognized ASTM, ASME, and EN standards. Our welded pipes are manufactured using premium-quality duplex stainless steel plates with advanced forming and automatic welding processes to achieve excellent weld integrity, dimensional accuracy, and long-term corrosion resistance. Available in various diameters, wall thicknesses, schedules, and custom lengths, our pipes are designed to meet the demanding requirements of offshore, marine, chemical processing, petrochemical, and industrial piping systems.

Product Duplex Steel UNS S32205 Welded Pipes
Material Grade UNS S32205 / WNR 1.4462
Manufacturing Standard ASTM A790, ASTM A928, ASME SA790
Pipe Type Welded
Outside Diameter ½" NB to 48" NB
Wall Thickness SCH 5S to SCH XXS
Length Single Random, Double Random, 6 Meter & Custom Cut Lengths
End Type Plain End, Bevelled End, Threaded End
Surface Finish Annealed, Pickled, Polished
Certification EN 10204 3.1 Mill Test Certificate

Chemical Composition of Duplex Steel UNS S32205

The carefully controlled chemical composition of Duplex Steel UNS S32205 provides superior corrosion resistance, excellent weldability, and high mechanical strength. The balanced addition of chromium, nickel, molybdenum, and nitrogen enhances resistance to chloride-induced corrosion while maintaining outstanding structural stability.

Element Composition (%)
Carbon (C)0.03 Max
Silicon (Si)1.00 Max
Manganese (Mn)2.00 Max
Phosphorus (P)0.03 Max
Sulphur (S)0.02 Max
Chromium (Cr)22.0 – 23.0
Nickel (Ni)4.5 – 6.5
Molybdenum (Mo)3.0 – 3.5
Nitrogen (N)0.14 – 0.20
Iron (Fe)Balance

Mechanical Properties of Duplex Steel UNS S32205

Duplex Steel UNS S32205 Welded Pipes exhibit outstanding tensile strength, high yield strength, and excellent toughness, making them suitable for high-pressure process piping, offshore installations, and corrosive industrial environments where long-term structural reliability is essential.

Property Value
Tensile Strength 620 MPa Minimum
Yield Strength (0.2% Offset) 450 MPa Minimum
Elongation 25% Minimum
Hardness 290 HB Maximum

Equivalent Grades of Duplex Steel UNS S32205

Standard Equivalent Grade
UNS S32205
Werkstoff 1.4462
EN X2CrNiMoN22-5-3
ASTM A790 / A928
ASME SA790

Applications of Duplex Steel UNS S32205 Welded Pipes

Duplex Steel UNS S32205 Welded Pipes are extensively used in industries that demand superior corrosion resistance, high structural strength, and dependable performance under aggressive operating conditions. Their excellent resistance to chloride attack, seawater corrosion, and chemical exposure makes them a preferred choice for transporting corrosive fluids, gases, and process media. The combination of high mechanical strength and reliable welded construction also makes these pipes suitable for large-diameter industrial piping systems where durability and cost efficiency are equally important.

  • Offshore Oil & Gas Platforms
  • Petrochemical Processing Plants
  • Chemical Processing Industries
  • Marine & Shipbuilding Industries
  • Desalination & Reverse Osmosis Plants
  • Heat Exchangers & Condensers
  • Pressure Vessels
  • Power Generation Plants
  • Pulp & Paper Industries
  • Water Treatment Facilities
  • Fire Fighting & Process Piping Systems
  • Industrial Fluid Transportation

Inspection & Testing of Duplex Steel UNS S32205 Welded Pipes

Every Duplex Steel UNS S32205 Welded Pipe manufactured by Kamal Steels undergoes comprehensive quality inspections to verify weld integrity, material composition, dimensional accuracy, and mechanical performance. Our strict quality assurance procedures ensure that every pipe fully complies with ASTM, ASME, and customer specifications before dispatch.

  • Positive Material Identification (PMI)
  • Hydrostatic Pressure Testing
  • Radiographic Weld Examination (RT)
  • Ultrasonic Testing (UT)
  • Eddy Current Testing
  • Chemical Analysis
  • Mechanical Testing
  • Flattening & Flaring Tests
  • Dimensional Inspection
  • Visual Inspection
  • Third-Party Inspection Available

Packaging, Marking & Documentation

Kamal Steels follows international packaging standards to ensure Duplex Steel UNS S32205 Welded Pipes are delivered safely without damage during storage and transportation. Pipes are securely bundled, fitted with protective end caps, wrapped with protective materials, and packed in fumigated wooden boxes or export-worthy crates suitable for domestic and international shipments.

Each shipment is supplied with complete documentation, including EN 10204 3.1 Mill Test Certificates, commercial invoice, packing list, heat number traceability, inspection reports, and third-party inspection certificates whenever specified by the customer.

Why Choose Kamal Steels for Duplex Steel UNS S32205 Welded Pipes?

Kamal Steels is a trusted manufacturer and stockist of Duplex Steel UNS S32205 Welded Pipes, supplying premium-quality piping products to customers across India and global markets. With decades of industry experience, we manufacture welded pipes that comply with international ASTM and ASME standards, ensuring excellent weld quality, superior corrosion resistance, and long-term operational reliability.

Our comprehensive inventory includes Duplex Steel UNS S32205 Welded Pipes in multiple sizes, schedules, wall thicknesses, and custom lengths to support both standard and project-specific requirements. Every pipe is manufactured using certified raw materials and undergoes rigorous quality inspections to ensure dimensional accuracy, weld integrity, and complete material traceability before dispatch.

Backed by competitive pricing, extensive ready stock, experienced technical support, prompt deliveries, and dependable worldwide export services, Kamal Steels has earned the trust of customers in offshore, marine, petrochemical, chemical processing, desalination, power generation, and infrastructure industries worldwide.

Frequently Asked Questions

Duplex Steel UNS S32205 Welded Pipes are high-strength stainless steel pipes manufactured by welding duplex stainless steel plates or coils. They offer excellent corrosion resistance, high mechanical strength, and reliable performance in demanding industrial environments.

These welded pipes are manufactured according to ASTM A790, ASTM A928, and ASME SA790 standards, ensuring superior weld quality, dimensional accuracy, and long-term performance.

They provide excellent resistance to pitting, crevice corrosion, chloride stress corrosion cracking, superior mechanical strength, excellent weldability, and long service life in aggressive industrial environments.

These pipes are widely used in offshore platforms, oil & gas processing, petrochemical plants, marine engineering, desalination plants, chemical processing industries, power generation facilities, and water treatment systems.

They are available from ½" NB to 48" NB in various schedules including SCH 5S, SCH 10S, SCH 40S, SCH 80S, XS, and XXS, with custom diameters and lengths available upon request.

Each pipe undergoes PMI Testing, Hydrostatic Testing, Radiographic Weld Examination, Ultrasonic Testing, Eddy Current Testing, Chemical Analysis, Mechanical Testing, and Dimensional Inspection before dispatch.

Yes. Their excellent resistance to chloride attack, seawater corrosion, and stress corrosion cracking makes them ideal for offshore structures, marine piping systems, and desalination plants.

Welded pipes are manufactured by forming and welding steel plates or coils, making them more economical and readily available in larger diameters. Seamless pipes are manufactured without a weld seam and are generally preferred for extremely high-pressure applications.

Yes. All pipes are supplied with EN 10204 3.1 Mill Test Certificates, complete material traceability, inspection reports, and third-party inspection certificates when requested.

Kamal Steels is a trusted manufacturer and stockist offering certified materials, advanced manufacturing, extensive ready stock, customized sizes, competitive pricing, strict quality control, complete documentation, and timely worldwide delivery for industrial piping projects.