Duplex 2304 EFW Pipe exporter in Indonesia
Duplex 2304 EFW Pipe exporter in Indonesia plays a crucial role in supplying high-quality, corrosion-resistant steel pipes tailored for demanding industrial applications. These pipes are manufactured using Electric Fusion Welding (EFW) technology, which ensures strong weld integrity and consistent mechanical properties. The Duplex 2304 grade combines the benefits of austenitic and ferritic stainless steels, offering excellent resistance to stress corrosion cracking and superior strength compared to standard stainless steel pipes.
Constructed from a duplex stainless steel alloy with approximately 23% chromium and 4% nickel, these EFW pipes provide enhanced durability in aggressive environments. Their balanced microstructure contributes to high tensile strength, good toughness, and exceptional resistance to pitting and crevice corrosion, making them ideal for chemical processing, oil and gas, and marine industries. The pipes are available in various sizes and thicknesses to meet diverse project specifications and operational requirements.
The manufacturing process adheres to stringent international standards, including ASTM and ASME codes, ensuring that the pipes meet global quality benchmarks. The electric fusion welding technique used guarantees a uniform, defect-free seam, which is critical for maintaining pressure integrity in high-temperature and high-pressure systems. Moreover, these pipes undergo rigorous testing such as hydrostatic pressure tests, non-destructive examinations, and chemical composition analysis to certify their reliability and performance.
Indonesia’s strategic location and well-established logistics network facilitate efficient export operations, making these duplex stainless steel pipes readily available for overseas industrial buyers. Export readiness is supported by comprehensive documentation, including mill test certificates, packing lists, and compliance with import regulations of destination countries. This ensures a smooth supply chain experience from manufacturer to end-user, minimizing lead times and operational disruptions.
Industrial buyers seeking robust and corrosion-resistant piping solutions for critical infrastructure projects can rely on these Duplex 2304 EFW pipes for long-term service life and optimal performance. Their versatility across various sectors, combined with strict quality control and export capabilities, positions them as a preferred choice for demanding applications 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 in Indonesia 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 Indonesia
- 2. How to Choose the Right Manufacturer
- 3.Comparison of Duplex 2304 EFW Pipe exporter in Indonesia
- 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 Indonesia
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 Indonesia
| 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 resistance to pitting and crevice corrosion
- ✔ High strength and durability, ideal for various applications
- ✔ Good weldability, suitable for EFW (Electric Fusion Welded) processes
- ✔ Cost-effective alternative to higher alloyed duplex stainless steels
- ✔ Low thermal expansion coefficient, beneficial in high-temperature applications
- ✔ Environmentally friendly, with a lower carbon footprint compared to other materials
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 various applications including oil and gas, chemical processing, and marine environments. | ASTM A928, ASME SA928 |
| Duplex 2304 EFW Pipe | Fe, 23% Cr, 4% Ni, 0.2% N | Ideal for applications requiring high strength and corrosion resistance. | EN 10088-3, ISO 15156 |
| Duplex 2304 EFW Pipe | Fe, 23% Cr, 4% Ni, 0.2% N | Commonly used in the construction of pipelines and pressure vessels. | API 5L, ASTM A312 |
Specifications Table
| Material | Duplex Stainless Steel 2304 |
|---|---|
| Grades | UNS S32304 |
| Standard | ASTM A789 / A790 |
| Size Range | 1/2" to 24" NPS |
| Length | Up to 12 meters |
| Form | Electric Fusion Welded (EFW) |
Available Grades Table
| Product | Composition | Applications |
|---|---|---|
| Duplex 2304 EFW Pipe | Fe, 18% Cr, 4% Ni, 0.2% Mo | Oil and gas, chemical processing, marine environments |
| Duplex 2304 EFW Pipe | Fe, 19% Cr, 3% Ni, 0.1% Mo | Water treatment, pulp and paper industry |
| Duplex 2304 EFW Pipe | Fe, 17% Cr, 5% Ni, 0.3% Mo | Heat exchangers, pressure vessels |
| Duplex 2304 EFW Pipe | Fe, 18% Cr, 4.5% Ni, 0.1% Mo | Food processing, pharmaceutical applications |
| Duplex 2304 EFW Pipe | Fe, 20% Cr, 2.5% Ni, 0.2% Mo | Construction, offshore platforms |
Available Sizes of Duplex 2304 EFW Pipe (MM)
| Size (MM) | Size (MM) |
|---|---|
| 15 | 20 |
| 25 | 32 |
| 40 | 50 |
| 65 | 80 |
| 100 | 150 |
| 200 | 250 |
| 300 | 350 |
| 400 | 450 |
| 500 | 600 |
| 700 | 800 |
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 - 1.0 |
| Manganese (Mn) | 1.5 - 3.0 |
| 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 (MPa) | 620 |
| Yield Strength (MPa) | 450 |
| Elongation (%) | 25 |
| Hardness (HB) | 250 |
| Impact Toughness (J at -40°C) | 40 |
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 | Solid |
| 700 | 100 - 300 | Solid |
| 900 | 300 - 600 | Solid |
Electrical Resistivity of Duplex 2304 EFW Pipe
| Electrical Resistivity | ||
|---|---|---|
| Value (µΩ·m) | Temperature (°C) | Treatment or Condition |
| 0.74 | 20 | As-Fabricated |
| 0.76 | 100 | |
| 0.78 | 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 | 1.4362 | S32304 |
Manufacturing Process & Heat Treatment of Duplex 2304 EFW Pipe
Annealing
The annealing process for Duplex 2304 EFW pipes involves heating the material to a temperature of approximately 1020°C to 1100°C. This process helps to relieve internal stresses, enhance ductility, and improve overall mechanical properties. The pipes are then cooled slowly in air to avoid any rapid cooling that could lead to unwanted phase transformations.
Forging
Forging of Duplex 2304 involves heating the steel to a temperature around 1100°C to 1200°C followed by mechanical deformation. This process refines the grain structure, enhances strength, and improves the toughness of the material. The forged pipes are then subjected to further processing to achieve the desired dimensions and surface finish.
Hardening & Tempering
| Process | Temperature Range (°C) | Quenching Medium | Purpose |
|---|---|---|---|
| Hardening | 1000 - 1100 | 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 annealing, forging, and the heat treatment processes of hardening and tempering ensures that Duplex 2304 EFW pipes achieve optimal mechanical properties, making them suitable for various industrial applications and environments.
Various Types
Duplex 2304 EFW Pipe - 1 Inch
- Outer Diameter: 25.4 mm
- Condition: Annealed
- Applications: Oil & Gas, Chemical Processing
Duplex 2304 EFW Pipe - 2 Inch
- Outer Diameter: 50.8 mm
- Condition: Pickled
- Applications: Marine Environments, Water Treatment
Duplex 2304 EFW Pipe - 3 Inch
- Outer Diameter: 76.2 mm
- Condition: Hot Finished
- Applications: Pulp & Paper, Desalination Plants
Duplex 2304 EFW Pipe - 4 Inch
- Outer Diameter: 101.6 mm
- Condition: Cold Drawn
- Applications: Heat Exchangers, Pressure Vessels
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 | ₹207 – ₹248 |
| Duplex 2304 | 6 mm | $2.70 – $3.20 | ₹224 – ₹265 |
| Duplex 2304 | 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