Duplex 2304 EFW Pipe exporter in Qatar
Duplex 2304 EFW Pipe exporter in Qatar offers high-quality, corrosion-resistant steel pipes designed for demanding industrial environments. These pipes are manufactured using the Electrofusion Welding (EFW) process, ensuring superior joint strength and structural integrity. Crafted from Duplex 2304 stainless steel, the product combines the benefits of austenitic and ferritic stainless steels, delivering enhanced mechanical properties and excellent resistance to stress corrosion cracking.
The duplex stainless steel grade 2304 features a balanced microstructure that provides improved toughness and durability compared to standard stainless steels. With a typical composition of chromium, nickel, and molybdenum, these pipes exhibit remarkable resistance to chloride-induced corrosion, making them ideal for use in chemical processing, oil and gas, and marine applications. The EFW manufacturing technique ensures uniform welds with minimal defects, meeting stringent industrial standards.
These pipes are available in various diameters and wall thicknesses to accommodate a wide range of project requirements. They conform to international standards such as ASTM A789/A790, guaranteeing compatibility and reliability in critical infrastructure. The exporter ensures that all products undergo rigorous quality control, including non-destructive testing, to maintain consistency and performance in the field.
Industries in Qatar and surrounding regions benefit from the ready availability of these duplex stainless steel pipes, which are well-suited for pipelines, heat exchangers, and pressure vessels. Their dual-phase structure allows for excellent weldability and fabrication flexibility, reducing installation time and costs. Export readiness includes proper packaging, documentation, and compliance with local import regulations, facilitating smooth logistics and timely delivery.
For industrial buyers seeking durable and corrosion-resistant piping solutions, sourcing these EFW duplex pipes from a reliable exporter in Qatar ensures access to premium materials tailored for harsh operating conditions. The combination of advanced metallurgy, precise welding techniques, and strict quality assurance makes these pipes a strategic choice for long-term infrastructure projects.
Lead Time
2–7 weeks depending on size
Delivery Terms
FOB, CIF, DDP
Shipping Modes
Sea / Air / Express
Why Duplex 2304 EFW 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 2304 EFW Pipe exporter in Qatar
- 2. How to Choose the Right Manufacturer
- 3.Comparison of Duplex 2304 EFW 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 2304 EFW 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 2304 EFW 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 2304 EFW Pipe
- ✔ Excellent corrosion resistance in chloride environments
- ✔ High strength-to-weight ratio, reducing overall material costs
- ✔ Good weldability and formability, suitable for various applications
- ✔ Enhanced toughness at low temperatures
- ✔ Cost-effective alternative to higher-grade duplex stainless steels
- ✔ Compliance with international standards and specifications
Technical Overview of Duplex 2304 EFW Pipe
| Product | Composition | Usage | Standards |
|---|---|---|---|
| Duplex 2304 EFW Pipe | 22% Chromium, 4% Nickel, 0.2% Nitrogen, Balance Iron | Used in chemical processing, oil and gas, and marine applications | ASTM A928, ASME SA928 |
| Duplex 2304 EFW Pipe | 22% Chromium, 4% Nickel, 0.2% Nitrogen, Balance Iron | Ideal for environments prone to corrosion and stress corrosion cracking | EN 10088-3, ISO 15156 |
| Duplex 2304 EFW Pipe | 22% Chromium, 4% Nickel, 0.2% Nitrogen, Balance Iron | Commonly used in heat exchangers, piping systems, and pressure vessels | API 5L, ASTM A790 |
Specifications Table
| Material | Duplex Stainless Steel |
|---|---|
| Grades | UNS S32304 |
| Standard | ASTM A789 / A790 |
| Size Range | 1/2" to 24" |
| Length | Up to 12 meters |
| Form | Electric Fusion Welded (EFW) |
Available Grades Table
| Product | Composition | Applications |
|---|---|---|
| Duplex 2304 EFW Pipe | Fe, 0.03% C, 1.5% Si, 0.8% Mn, 0.2% P, 0.03% S, 4.5% Ni, 0.5% Cu, 23% Cr, 4.5% Mo | Oil and gas, chemical processing, seawater applications |
| Duplex 2304 EFW Pipe | Fe, 0.02% C, 0.8% Si, 1% Mn, 0.03% P, 0.02% S, 4.5% Ni, 0.5% Cu, 23% Cr, 4.5% Mo | Pulp and paper, wastewater treatment, marine environments |
| Duplex 2304 EFW Pipe | Fe, 0.01% C, 1% Si, 1% Mn, 0.02% P, 0.01% S, 4.5% Ni, 0.5% Cu, 23% Cr, 5% Mo | Heat exchangers, pressure vessels, valves |
| Duplex 2304 EFW Pipe | Fe, 0.03% C, 0.7% Si, 1.2% Mn, 0.04% P, 0.02% S, 5% Ni, 0.6% Cu, 24% Cr, 4% Mo | Construction, shipbuilding, offshore platforms |
| Duplex 2304 EFW Pipe | Fe, 0.025% C, 1% Si, 0.9% Mn, 0.02% P, 0.02% S, 4% Ni, 0.4% Cu, 23% Cr, 5% Mo | Industrial piping systems, storage tanks, heat recovery |
Available Sizes of Duplex 2304 EFW Pipe (MM)
| Size (MM) | Size (MM) |
|---|---|
| 25 | 50 |
| 32 | 60 |
| 40 | 76 |
| 50 | 89 |
| 63 | 102 |
| 76 | 114 |
| 89 | 127 |
| 102 | 140 |
| 114 | 168 |
| 140 | 219 |
Chemical Properties of Duplex 2304 EFW Pipe
| Element | Composition (%) |
|---|---|
| Chromium (Cr) | 19.0 - 21.0 |
| Nickel (Ni) | 3.0 - 5.0 |
| Molybdenum (Mo) | 0.5 - 1.0 |
| Manganese (Mn) | 5.0 - 7.0 |
| Silicon (Si) | 0.5 max |
| Carbon (C) | 0.03 max |
| Phosphorus (P) | 0.03 max |
| Sulfur (S) | 0.02 max |
Mechanical Properties of Duplex 2304 EFW Pipe
| Property | Value |
|---|---|
| Tensile Strength | 500 MPa (minimum) |
| Yield Strength | 230 MPa (minimum) |
| Elongation | 25% (minimum) |
| Hardness | ≤ 320 HB |
| Impact Strength (Charpy V-notch) | ≥ 40 J at -40°C |
Duplex 2304 EFW Pipe – Physical & Thermal Properties
Density of Duplex 2304 EFW Pipe
| Property | Metric | Imperial |
|---|---|---|
| Density | 7.1 g/cm³ | 0.256 lb/in³ |
Melting Point of Duplex 2304 EFW Pipe
| Property | Metric | Imperial |
|---|---|---|
| Melting Point | 1400 - 1450 °C | 2552 - 2642 °F |
Specific Heat of Duplex 2304 EFW Pipe
| Specific Heat of Duplex 2304 EFW Pipe | ||
|---|---|---|
| Specific Heat (J/kg·K) | Temperature Range (°C) | Condition |
| 500 | 20 - 100 | Room Temperature |
| 600 | 100 - 400 | Heating |
| 700 | 400 - 800 | High Temperature |
Electrical Resistivity of Duplex 2304 EFW Pipe
| Electrical Resistivity | ||
|---|---|---|
| Value (µΩ·m) | Temperature (°C) | Treatment or Condition |
| 0.73 | 20 | As-Welded |
| 0.75 | 100 | |
| 0.77 | 200 | |
| 0.80 | 300 | |
| 0.82 | 400 | |
Equivalent of Duplex 2304 EFW Pipe
| Standard | Werkstoff Nr. | UNS |
|---|---|---|
| ASTM A240 | 1.4362 | S32304 |
| EN 10088-2 | X2CrNiMoN22-5-3 | S32304 |
Manufacturing Process & Heat Treatment of Duplex 2304 EFW Pipe
Annealing
The annealing process for Duplex 2304 EFW pipe 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 corrosion resistance by promoting the formation of a more uniform microstructure.
Forging
Forging of Duplex 2304 involves shaping the material at elevated temperatures, typically between 950°C and 1150°C. This process enhances the mechanical properties of the pipe, providing superior strength and toughness by refining the grain structure and eliminating defects.
Hardening & Tempering
| Process | Temperature Range (°C) | Quenching Medium | Purpose |
|---|---|---|---|
| Hardening | 1020 - 1100 | Water or Oil | Increase hardness and strength |
| Tempering | 600 - 800 | Air | Reduce brittleness and improve toughness |
| Stress Relieving | 300 - 500 | Air | Minimize residual stresses |
The combination of these processes ensures that Duplex 2304 EFW pipes are produced with optimal mechanical properties and corrosion resistance, making them suitable for various industrial applications.
Various Types
Duplex 2304 EFW Pipe - 2 inch
- Dimensions: 2" NPS, Schedule 40
- Condition: New, Pickled and Passivated
- Applications: Chemical processing, Oil and gas, Marine environments
Duplex 2304 EFW Pipe - 3 inch
- Dimensions: 3" NPS, Schedule 40
- Condition: New, Pickled and Passivated
- Applications: Water treatment, Wastewater management, Petrochemical
Duplex 2304 EFW Pipe - 4 inch
- Dimensions: 4" NPS, Schedule 40
- Condition: New, Pickled and Passivated
- Applications: Desalination plants, Heat exchangers, Structural applications
Duplex 2304 EFW Pipe - 6 inch
- Dimensions: 6" NPS, Schedule 40
- Condition: New, Pickled and Passivated
- Applications: Pulp and paper, Marine applications, Pharmaceutical
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 2304 EFW Pipe
| Material Grade | Thickness | Price (USD / Kg) | Price (INR / Kg) |
|---|---|---|---|
| Duplex 2304 EFW Pipe | 3 mm | $2.50 – $3.00 | ₹207 – ₹248 |
| Duplex 2304 EFW Pipe | 6 mm | $2.70 – $3.20 | ₹224 – ₹265 |
| Duplex 2304 EFW Pipe | 10 mm | $2.90 – $3.50 | ₹241 – ₹290 |
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 2304 EFW Pipe.
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
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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