Duplex Pipe exporter in Qatar
Duplex Pipe exporter in Qatar offers high-quality stainless steel pipes known for their exceptional corrosion resistance and mechanical strength. These pipes are manufactured from duplex stainless steel, a material that combines the benefits of austenitic and ferritic stainless steels, providing superior durability and performance in demanding industrial environments. The unique microstructure of duplex steel ensures enhanced resistance to stress corrosion cracking, making it an ideal choice for various sectors.
These duplex pipes are typically available in seamless and welded forms, with precise dimensions and thicknesses tailored to meet international standards such as ASTM A790 and EN 10216. Their high tensile strength and resistance to chloride-induced corrosion make them particularly suitable for applications in oil and gas, petrochemical, desalination plants, and marine industries. The material grades commonly supplied include 2205 and 2507, offering optimal balance between strength and corrosion resistance.
With a strong focus on export readiness, suppliers in Qatar ensure that all products undergo rigorous quality control measures, including non-destructive testing, dimensional inspections, and certification compliance. Packaging is designed to protect the pipes during long-distance transportation, maintaining the integrity of the product upon delivery. Export documentation is meticulously prepared to facilitate smooth customs clearance and timely shipment to international buyers.
Industries requiring duplex stainless steel piping benefit from its long service life and reduced maintenance costs, especially in harsh environments involving exposure to chlorides and elevated temperatures. The pipes' versatility also extends to chemical processing units, power plants, and wastewater treatment facilities, where reliability and corrosion resistance are critical. Buyers can expect tailored solutions that accommodate specific project requirements and operational conditions.
Qatar's strategic location and well-established logistics networks further enhance the efficiency of exporting these specialized pipes globally. Industrial buyers seeking durable and high-performance duplex stainless steel piping solutions will find exporters in the region well-equipped to deliver consistent quality, timely supply, and comprehensive after-sales support, ensuring seamless integration into their infrastructure projects.
Lead Time
2–7 weeks depending on size
Delivery Terms
FOB, CIF, DDP
Shipping Modes
Sea / Air / Express
Why Duplex Pipe exporter in Qatar Are Preferred by Global Buyers
- ✔ Factory Pricing: Direct manufacturer rates with bulk stock
- ✔ Certified Quality: ISO & 3rd-party tested, EN 10204 certified
- ✔ Export-Ready: Sea-worthy packaging for on-time delivery
- ✔ Fast RFQs: Quick quotes for custom sizes & quantities
- ✔ Traceability: 100% heat number tracking from raw material to finished product
Trusted by industries like oil & gas, petrochemicals, power, marine, and heavy engineering.
- Manufacturing Capacity: 500 MT / Month
- Export Experience: 15+ Years
- Countries Served: 50+
- Annual Export Volume: 5,500 MT
Table of Contents
- 1. What is Duplex Pipe exporter in Qatar
- 2. How to Choose the Right Manufacturer
- 3.Comparison of Duplex Pipe exporter in Qatar
- 4. Why Global Buyers Source from Ragnar Metals and Tubes
- 5. Features
- 6. Technical Overview
- 7. Specifications
- 8. Available Grades
- 9. Available Sizes
- 10. Chemical Properties
- 11. Mechanical Properties
- 12. Physical & Thermal Properties
- 13. Electrical Resistivity
- 14. Equivalent Grades
- 15. Manufacturing Process & Heat Treatment
- 16. Various Types
- 17. Applications & Uses
- 18. Industries We Serve
- 19. Latest Price List
- 20. MOQ & Payment Terms
- 21. Export Packaging & Shipping
- 22. Cities We Supply in India
- 23. Countries We Export Worldwide
- 24. Our Certifications
- 25. Quality Inspection & Testing
- 26. Our Other Product Types
- 27. People Also Search For
- 28. Frequently Asked Questions
- 29. About Ragnar Metals and Tubes
How to Choose the Right Duplex Pipe exporter in Qatar
India is home to hundreds of manufacturers ranging from small job shops to large ISO-certified exporters. International and domestic buyers typically evaluate manufacturers based on quality compliance, production capacity, export experience, and pricing transparency.
- Certification & international standards (ASME, ASTM, EN)
- Manufacturing capability vs trading activity
- Export documentation & inspection support
- Stock availability & lead time reliability
- Past supply experience in oil & gas, EPC & heavy industries
Comparison Factors Among Duplex Pipe exporter in Qatar
| Evaluation Factor | Small Local Suppliers | Trading Companies | ISO-Certified Manufacturers |
|---|---|---|---|
| Manufacturing Control | Limited | None | Full in-house / audited partners |
| International Standards | Basic | Depends on source | ASME / ASTM / EN |
| Inspection & MTCs | Limited | Inconsistent | EN 10204 3.1 / 3.2 |
| Export Experience | Low | Medium | 50+ countries |
| Risk for EPC Projects | High | Medium | Low |
International buyers typically prefer ISO-certified manufacturers for large-scale or critical applications due to better quality control, documentation, and lower project risk.
Why Global Buyers Choose Ragnar Metals and Tubes
Ragnar Metals and Tubes is a trusted ISO 9001:2015 certified manufacturer and global exporter of ferro alloys and metal products, supplying consistent, high-quality materials to customers across USA, UK, Europe, Middle East, Africa, and Asia-Pacific. Our focus on quality assurance, cost efficiency, and on-time delivery makes us a preferred sourcing partner for international buyers.
| Key Advantage | Buyer Benefit |
|---|---|
| ISO 9001:2015 Certified Manufacturing | Consistent quality with documented QA systems and process control |
| ASME / ASTM / EN Compliant Products | Globally accepted standards with EN 10204 3.1 / 3.2 MTCs |
| Lower Manufacturing & Sourcing Costs | Save up to 15–20% compared to European suppliers |
| Favorable Exchange Rate Advantage | Reduced landed cost for international importers |
| In-House Testing & Inspection Facilities | Strict chemical, mechanical & dimensional quality checks |
| Bulk Stock & High Production Capacity | Fast order fulfillment and stable supply for large projects |
| Custom Sizes & Drawing-Based Manufacturing | Products manufactured exactly to buyer specifications |
| Export-Grade Packaging & Global Logistics | Sea-worthy packing, palletization & worldwide shipping support |
| Faster Global Shipping Routes | Optimized logistics for Middle East, Africa & Southeast Asia |
| Technical & After-Sales Support | Project assistance, documentation & responsive RFQ handling |
| Trusted by Global Steel & EPC Companies | Proven export experience across 50+ countries |
Features of Duplex Pipes
- ✔ High resistance to pitting and crevice corrosion
- ✔ Excellent mechanical properties at elevated temperatures
- ✔ Cost-effective solution with a longer service life
- ✔ Superior strength-to-weight ratio
- ✔ Good weldability and machinability
- ✔ Wide range of sizes and specifications available
Technical Overview of Duplex Pipes
| Product | Composition | Usage | Standards |
|---|---|---|---|
| Duplex Stainless Steel Pipe | 22% Cr, 5% Ni, 3% Mo, balance Fe | Oil and Gas, Chemical Processing | ASTM A790, ASME SA790 |
| Super Duplex Stainless Steel Pipe | 25% Cr, 7% Ni, 4% Mo, balance Fe | Marine Applications, Desalination Plants | ASTM A928, ASME SA928 |
| Duplex Pipe Fittings | 22% Cr, 5% Ni, 3% Mo, balance Fe | Pipeline Construction, Pressure Vessels | ASTM A815, ASME SA815 |
Specifications Table
| Material | Duplex Stainless Steel |
|---|---|
| Grades | UNS S31803, UNS S32205 |
| Standard | ASTM A790, ASME SA790 |
| Size Range | 1/2" to 24" |
| Length | Up to 12 meters |
| Form | Seamless and Welded |
Available Grades Table
| Product | Composition | Applications |
|---|---|---|
| Duplex 2205 | 22% Cr, 5% Ni, 3% Mo | Oil and gas, chemical processing |
| Duplex 2507 | 25% Cr, 7% Ni, 4% Mo | Desalination plants, petrochemical industries |
| Duplex 2304 | 23% Cr, 4% Ni | Food processing, wastewater treatment |
| Super Duplex 2507 | 25% Cr, 7% Ni, 4% Mo, 0.5% N | Marine environments, high-stress applications |
| Duplex 3A | 20% Cr, 5% Ni, 1.5% Mo | Pharmaceuticals, pulp and paper industry |
Available Sizes of Duplex Pipe (MM)
| Size (MM) | Size (MM) |
|---|---|
| 25 | 50 |
| 32 | 65 |
| 40 | 80 |
| 50 | 100 |
| 65 | 125 |
| 80 | 150 |
| 100 | 200 |
| 150 | 250 |
| 200 | 300 |
| 250 | 350 |
Chemical Properties of Duplex Stainless Steel (UNS S32205)
| Element | Composition (%) |
|---|---|
| Chromium (Cr) | 22.0 - 23.0 |
| Nickel (Ni) | 4.5 - 6.5 |
| Molybdenum (Mo) | 3.0 - 3.5 |
| Manganese (Mn) | 1.0 max |
| Silicon (Si) | 0.8 max |
| Carbon (C) | 0.03 max |
| Phosphorus (P) | 0.03 max |
| Sulfur (S) | 0.01 max |
Mechanical Properties of Duplex Stainless Steel Pipe
| Property | Value |
|---|---|
| Tensile Strength (MPa) | 620 - 800 |
| Yield Strength (MPa) | 450 - 600 |
| Elongation (%) | 25 |
| Hardness (HB) | 250 - 300 |
| Impact Toughness (J) | ≥ 40 |
Duplex Pipe – Physical & Thermal Properties
Density of Duplex Pipe
| Property | Metric | Imperial |
|---|---|---|
| Density | 7.8 g/cm³ | 0.28 lb/in³ |
Melting Point of Duplex Pipe
| Property | Metric | Imperial |
|---|---|---|
| Melting Point | 1350 - 1400 °C | 2462 - 2552 °F |
Specific Heat of Duplex Pipe
| Specific Heat of Duplex Pipe | ||
|---|---|---|
| Specific Heat (J/kg·K) | Temperature Range (°C) | Condition |
| 500 | 20 - 100 | Solid |
| 600 | 100 - 500 | Solid |
| 700 | 500 - 1200 | Solid |
Electrical Resistivity of Duplex Steel
| Electrical Resistivity | ||
|---|---|---|
| Value (µΩ·m) | Temperature (°C) | Treatment or Condition |
| 0.70 | 20 | As Rolled |
| 0.75 | 100 | |
| 0.80 | 200 | |
| 0.85 | 300 | |
| 0.90 | 400 | |
Equivalent of Duplex Pipe
| Standard | Werkstoff Nr. | UNS |
|---|---|---|
| ASTM A790 | 1.4462 | S32205 |
| EN 10088-3 | X2CrNiMoN22-5-3 | S31803 |
Manufacturing Process & Heat Treatment of Duplex Pipes
Annealing
Annealing of duplex pipes involves heating the material to a temperature range of 1020°C to 1100°C, followed by controlled cooling. This process helps to relieve internal stresses, enhance ductility, and improve the overall structural integrity of the pipes, making them suitable for various industrial applications.
Forging
Forging of duplex pipes is conducted at elevated temperatures, typically between 1100°C and 1250°C. This process involves shaping the metal through compressive forces, resulting in improved strength and toughness. The forged duplex pipes exhibit superior mechanical properties and better resistance to corrosion.
Hardening & Tempering
| Process | Temperature Range (°C) | Quenching Medium | Purpose |
|---|---|---|---|
| Hardening | 1020 - 1100 | Oil | To increase hardness and strength of the material. |
| Tempering | 600 - 800 | Air | To relieve stresses and reduce brittleness after hardening. |
| Stress Relieving | 550 - 700 | Air | To minimize residual stresses and improve dimensional stability. |
The manufacturing and heat treatment processes for duplex pipes are critical in achieving the desired mechanical properties and corrosion resistance, ensuring their reliability in various applications within the oil and gas, chemical, and marine industries.
Various Types
Duplex Stainless Steel 2205 Pipe
- 1/2" to 24" NPS
- Annealed
- Oil and gas, chemical processing, marine applications
Duplex Stainless Steel 2507 Pipe
- 1/2" to 12" NPS
- Hot finished
- Pulp and paper, seawater applications, chemical storage
Duplex Stainless Steel 3A Pipe
- 3/4" to 16" NPS
- Pickled
- Food processing, pharmaceutical, and wastewater treatment
Duplex Stainless Steel 1.4462 Pipe
- 1/2" to 10" NPS
- Cold drawn
- Marine environments, chemical process industries
Applications & Uses
- Oil & Gas Industry: Pipelines, process piping, and high-pressure fluid handling systems.
- Petrochemical & Refineries: Reactors, heat exchangers, and chemical processing units.
- Water Treatment Plants: Filtration systems, storage tanks, and corrosion-resistant piping.
- Pharmaceutical Industry: Hygienic piping, sanitary fittings, and cleanroom equipment.
- Food & Beverage: Processing lines, storage vessels, and contamination-free pipelines.
- Automobile & Engineering: Exhaust systems, structural parts, and precision components.
- Power & Energy Sector: Boilers, condensers, and turbine piping systems.
- Marine & Offshore: Shipbuilding, offshore platforms, and coastal infrastructure.
- Construction & Infrastructure: Structural frameworks, bridges, and industrial buildings.
Industries We Serve
Our stainless steel, alloy steel, and high-performance metal products are widely used across the following industries:
Latest Price List of Duplex Pipes
| Material Grade | Thickness | Price (USD / Kg) | Price (INR / Kg) |
|---|---|---|---|
| Duplex 2205 | 3 mm | $3.50 – $4.00 | ₹290 – ₹330 |
| Duplex 2205 | 6 mm | $3.60 – $4.10 | ₹300 – ₹340 |
| Duplex 2205 | 10 mm | $3.70 – $4.20 | ₹310 – ₹350 |
Note: Prices are indicative and may vary based on size, quantity, raw material cost, and delivery location. Contact us for the latest quotation for Duplex Pipes.
MOQ & Payment Terms
Minimum Order Quantity: 25–100 Kg depending on part size and grade.
Payment Terms: Depending On Grade and Quantity Size
Export Packaging & Shipping
- Seaworthy, fumigated wooden crates with waterproof inner lining
- Palletised packing with clear shipping marks and heat number identification
- Container stuffing supervision with loading photographs available on request
We Exported to 50+ Countries Worldwide
| Global Export Destinations | |||||
|---|---|---|---|---|---|
| United States | Canada | Mexico | United Kingdom | Germany | Netherlands |
| Italy | Spain | South Africa | Australia | India | Korea |
| United Arab Emirates | Saudi Arabia | Qatar | Kuwait | Oman | Bahrain |
| Singapore | Malaysia | Indonesia | Dubai | Riyadh | Dammam |
Our Certifications
We are a certified manufacturer and exporter, committed to strict quality control and international compliance standards. Below are our key certifications.
GST Registered
ISO 9001:2015
ISO 1002:2018
Udyam MSME Registration
Testing Process & Quality Assurance – Ragnar Metals & Tubes
At Ragnar Metals & Tubes, our testing process ensures the safety, reliability, and performance of stainless steel and alloy steel products supplied for global industrial and infrastructure projects. Each batch is verified from raw material selection to final dispatch under internationally recognized standards including ASTM, ASME, ISO, DIN, and EN.
Detects internal flaws using high-frequency sound waves
Measures yield strength, elongation, and material durability
Evaluates toughness under low-temperature and high-stress conditions
Ensures smoothness, coating quality, and visual compliance
Enhances hardness, strength, and corrosion resistance
Measures resistance to deformation and wear
Documentation & Global Compliance
- ✔ EN 10204 3.1 / 3.2 Mill Test Certificates (MTC)
- ✔ Batch-wise quality traceability and inspection records
- ✔ Third-party inspection by SGS, TUV, Bureau Veritas & Lloyd’s
- ✔ Export documentation support for customs and international shipping
Supporting supply for oil & gas, petrochemical, power generation, marine, infrastructure, and heavy engineering industries worldwide.
Related Products
Explore our full range of stainless steel and alloy steel products including pipes, tubes, fittings, flanges, sheets, plates, spools, fasteners, round bars, and special grades manufactured for industrial, infrastructure, and global export applications.
People Also Search For
- Duplex Steel Pipe Suppliers in Qatar
- Stainless Steel Pipe Exporters in Qatar
- Pipe Fittings Manufacturers in Qatar
- Nickel Alloy Pipe Exporters in Qatar
- Carbon Steel Pipe Suppliers in Qatar
Frequently Asked Questions
About Ragnar Metals & Tubes
- ✔ Leading manufacturer, stockist, and exporter of stainless steel and alloy steel products for industrial and infrastructure projects
- ✔ ISO 9001:2015 certified quality management system ensuring consistent product reliability and compliance
- ✔ Specialized in precision pipes, tubes, fittings, flanges, sheets, plates, fasteners, and round bars
- ✔ Modern processing and testing facilities with advanced manufacturing and inspection equipment
- ✔ Custom-engineered solutions based on client drawings and technical specifications
- ✔ Full material traceability with EN 10204 3.1 / 3.2 mill test certification
- ✔ Compliance with ASTM, ASME, DIN, EN, and ISO international standards
- ✔ Trusted global supplier supporting oil & gas, petrochemical, power, marine, and heavy engineering industries