Duplex 2304 EFW Pipe exporter
Duplex 2304 EFW Pipe exporter specializes in supplying high-quality welded pipes made from Duplex 2304 stainless steel, a material known for its excellent corrosion resistance and superior mechanical strength. These pipes are manufactured using the Electric Fusion Welding (EFW) process, ensuring robust joints and consistent dimensional accuracy. The duplex stainless steel grade 2304 offers a balanced microstructure of austenitic and ferritic phases, making it ideal for demanding industrial environments.
The product is designed to meet stringent industrial standards, featuring enhanced resistance to stress corrosion cracking and chloride pitting. Typical specifications include a thickness range suitable for high-pressure applications, with diameters adaptable to various pipeline requirements. The duplex nature of the steel also provides improved weldability and toughness, which are critical for long-term durability and performance in challenging conditions.
These welded pipes find extensive use in sectors such as chemical processing, oil and gas, marine, and power generation, where resistance to aggressive media and high temperatures is essential. Their application in offshore platforms and desalination plants underscores their reliability and efficiency in corrosive environments. Additionally, the duplex 2304 pipes are favored for structural projects requiring a combination of strength and corrosion resistance.
Export readiness is a key aspect of the offering, with products typically accompanied by comprehensive quality certifications, including material test reports and compliance with international standards such as ASTM and ASME. The manufacturing facilities are equipped to handle bulk orders, ensuring timely delivery and customization options to meet specific client requirements. Proper packaging and logistics support further facilitate seamless global shipment.
Industrial buyers seeking durable and versatile welded pipes will find these duplex stainless steel solutions well-suited for critical infrastructure projects. The blend of technical excellence and export capabilities makes this offering a reliable choice for companies aiming to enhance the longevity and safety of their pipeline systems worldwide.
Lead Time
2–7 weeks depending on size
Delivery Terms
FOB, CIF, DDP
Shipping Modes
Sea / Air / Express
Why Duplex 2304 EFW Pipe exporter 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
- 2. How to Choose the Right Manufacturer
- 3.Comparison of Duplex 2304 EFW Pipe exporter
- 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
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
| 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 a variety of environments
- ✔ High strength and durability, ideal for structural applications
- ✔ Cost-effective alternative to traditional stainless steels
- ✔ Good weldability and formability for diverse manufacturing processes
- ✔ Low thermal expansion, minimizing warping during fabrication
- ✔ Lightweight design, reducing overall project weight and costs
Technical Overview of Duplex 2304 EFW Pipe
| Product | Composition | Usage | Standards |
|---|---|---|---|
| Duplex 2304 EFW Pipe | Fe, 23% Cr, 4% Ni, 0.2% N | Used in chemical processing, oil and gas, and marine applications | ASTM A928, ASME SA928 |
| Duplex 2304 EFW Pipe | Fe, 23% Cr, 4% Ni, 0.2% N | Ideal for environments with high chloride concentrations | EN 10088-1, EN 10028-7 |
| Duplex 2304 EFW Pipe | Fe, 23% Cr, 4% Ni, 0.2% N | Excellent resistance to pitting and crevice corrosion | API 5L, ISO 3183 |
Specifications Table
| Material | Duplex Stainless Steel 2304 |
|---|---|
| Grades | UNS S32304 |
| Standard | ASTM A789 / A790 |
| Size Range | 1/2" to 24" (OD) |
| Length | Standard lengths of 20ft, custom lengths available |
| 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, 23% Cr, 4.5% Ni, 0.5% Mo | Oil and gas, chemical processing, marine environments |
| Duplex 2304 EFW Pipe | Fe, 0.02% C, 1.2% Si, 1.0% Mn, 22% Cr, 4.5% Ni, 0.5% Mo | Water treatment, desalination plants, wastewater management |
| Duplex 2304 EFW Pipe | Fe, 0.01% C, 1.0% Si, 1.0% Mn, 23% Cr, 5% Ni, 0.4% Mo | Food processing, pharmaceutical industries |
| Duplex 2304 EFW Pipe | Fe, 0.04% C, 1.5% Si, 0.9% Mn, 24% Cr, 5% Ni, 0.6% Mo | Pulp and paper, power generation |
| Duplex 2304 EFW Pipe | Fe, 0.03% C, 1.3% Si, 0.7% Mn, 23% Cr, 4.8% Ni, 0.5% Mo | Marine applications, construction, structural components |
Available Sizes of Duplex 2304 EFW Pipe (MM)
| Size (MM) | Size (MM) |
|---|---|
| 25 | 50 |
| 32 | 65 |
| 40 | 80 |
| 50 | 100 |
| 65 | 125 |
| 80 | 150 |
| 100 | 200 |
| 125 | 250 |
| 150 | 300 |
| 200 | 350 |
Chemical Properties of Duplex 2304 EFW Pipe
| Element | Composition (%) |
|---|---|
| Chromium (Cr) | 18.0 - 20.0 |
| Nickel (Ni) | 4.5 - 6.5 |
| Molybdenum (Mo) | 0.5 max |
| Manganese (Mn) | 2.0 max |
| Silicon (Si) | 1.0 max |
| Iron (Fe) | Balance |
| Carbon (C) | 0.03 max |
| Phosphorus (P) | 0.03 max |
| Sulfur (S) | 0.01 max |
Mechanical Properties of Duplex 2304 EFW Pipe
| Property | Value |
|---|---|
| Tensile Strength (MPa) | 620 |
| Yield Strength (MPa) | 450 |
| Elongation (%) | 25 |
| Hardness (HB) | 200 |
| Impact Toughness (J) | 40 |
Duplex 2304 EFW Pipe – Physical & Thermal Properties
Density of Duplex 2304 EFW Pipe
| Property | Metric | Imperial |
|---|---|---|
| Density | 7.8 g/cm³ | 0.28 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 - 500 | High Temperature |
| 700 | 500 - 800 | Near Melting Point |
Electrical Resistivity of Duplex 2304 EFW Pipe
| Electrical Resistivity | ||
|---|---|---|
| Value (µΩ·m) | Temperature (°C) | Treatment or Condition |
| 0.70 | 20 | As Welded |
| 0.75 | 100 | |
| 0.80 | 200 | |
| 0.85 | 300 | |
| 0.90 | 400 | |
Equivalent of Duplex 2304 EFW Pipe
| Standard | Werkstoff Nr. | UNS |
|---|---|---|
| EN 1.4362 | 1.4362 | S32304 |
| AISI 2304 | — | S32304 |
Manufacturing Process & Heat Treatment of Duplex 2304 EFW Pipe
Annealing
Annealing of 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 in relieving internal stresses, improving ductility, and ensuring a uniform microstructure. The annealing process is crucial for enhancing the toughness and corrosion resistance of the duplex stainless steel.
Forging
The forging of Duplex 2304 involves shaping the metal while it is in a hot state, typically at temperatures ranging from 1100°C to 1200°C. This process enhances mechanical properties such as strength and toughness by refining the grain structure, resulting in a more uniform and durable product. Forging is essential for achieving the desired dimensions and performance characteristics of the EFW pipe.
Hardening & Tempering
| Process | Temperature Range (°C) | Quenching Medium | Purpose |
|---|---|---|---|
| Hardening | 1000 - 1100 | Oil | Increase hardness and strength |
| Tempering | 300 - 600 | Air | Reduce brittleness and improve toughness |
| Stabilizing | 800 - 900 | Air | Enhance corrosion resistance and reduce sigma phase formation |
The manufacturing and heat treatment processes of Duplex 2304 EFW pipe are integral to achieving the required mechanical properties and ensuring longevity in various applications. Through careful control of the forging, annealing, hardening, and tempering processes, the final product meets stringent industry standards and customer specifications.
Various Types
Duplex 2304 EFW Pipe - Schedule 10
- Diameter: 2" to 12"
- Condition: Standard
- Applications: Oil & Gas, Chemical Processing
Duplex 2304 EFW Pipe - Schedule 40
- Diameter: 1" to 10"
- Condition: Annealed
- Applications: Water Treatment, Pulp & Paper
Duplex 2304 EFW Pipe - Schedule 80
- Diameter: 3" to 16"
- Condition: Pickled & Passivated
- Applications: Marine Applications, Structural Components
Duplex 2304 EFW Pipe - Custom Sizes
- Diameter: Customizable
- Condition: Hot Finished / Cold Drawn
- Applications: Custom Fabrication, Special Projects
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 | 3 mm | $2.50 – $3.00 | ₹205 – ₹246 |
| Duplex 2304 | 6 mm | $2.70 – $3.20 | ₹222 – ₹263 |
| Duplex 2304 | 10 mm | $2.90 – $3.50 | ₹239 – ₹287 |
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