Duplex Pipe exporter in Indonesia
Duplex Pipe exporter in Indonesia offers high-quality corrosion-resistant piping solutions tailored for demanding industrial environments. Known for their excellent strength and durability, these duplex stainless steel pipes combine the best properties of austenitic and ferritic steels, making them ideal for applications requiring superior resistance to stress corrosion cracking and pitting. Indonesian manufacturers specialize in producing seamless and welded variants, ensuring compliance with international standards such as ASTM A790 and EN 10216.
The duplex grade pipes typically contain a balanced microstructure with approximately 22-25% chromium, 5-7% nickel, and additions of molybdenum and nitrogen to enhance corrosion resistance and mechanical performance. These specifications make them suitable for use in chemical processing, oil and gas, marine, and desalination industries. Their high tensile strength and resistance to chloride-induced corrosion provide long service life even in harsh environments.
Exporters in Indonesia maintain rigorous quality control processes, including non-destructive testing and dimensional inspections, to meet the stringent demands of global clients. The pipes are available in various sizes, thicknesses, and finishes, allowing customization according to project requirements. This flexibility ensures seamless integration into complex piping systems and infrastructure projects worldwide.
With a robust supply chain and strategic port access, Indonesian suppliers are well-positioned to fulfill large volume orders efficiently. They offer comprehensive documentation, including material test certificates and compliance reports, facilitating smooth customs clearance and adherence to international trade regulations. This export readiness is crucial for industrial buyers seeking reliable delivery and consistent product quality.
In summary, industrial buyers looking for duplex stainless steel piping solutions can rely on Indonesian exporters for advanced materials that combine performance, durability, and export efficiency. Their expertise in producing duplex pipes tailored to rigorous specifications makes them a valuable partner for global infrastructure and processing projects requiring high-grade corrosion-resistant piping.
Lead Time
2–7 weeks depending on size
Delivery Terms
FOB, CIF, DDP
Shipping Modes
Sea / Air / Express
Why Duplex 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 Pipe exporter in Indonesia
- 2. How to Choose the Right Manufacturer
- 3.Comparison of Duplex 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 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 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 Pipes
- ✔ High corrosion resistance
- ✔ Excellent strength-to-weight ratio
- ✔ Superior weldability
- ✔ Suitable for high-pressure applications
- ✔ Temperature stability in extreme environments
- ✔ Cost-effective solution for various industries
Technical Overview of Duplex Pipe
| Product | Composition | Usage | Standards |
|---|---|---|---|
| Duplex Stainless Steel Pipe | 25% Chromium, 5% Nickel, 3% Molybdenum | Oil and gas, chemical processing, marine applications | ASTM A790, ASTM A928 |
| Duplex Seamless Pipe | 22% Chromium, 5% Nickel, 3% Molybdenum | High-pressure applications, heat exchangers | ASME SA790, EN 10216-5 |
| Duplex Welded Pipe | 22% Chromium, 5% Nickel, 3% Molybdenum | Construction, offshore platforms, pulp and paper | API 5L, ASTM A923 |
Specifications Table
| Material | Duplex Stainless Steel |
|---|---|
| Grades | S31803, S32205, S32750 |
| Standard | ASTM A790, ASTM A928 |
| Size Range | 1/2" to 24" (NPS) |
| 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, marine applications |
| Duplex 2507 | 25% Cr, 7% Ni, 4% Mo | Seawater handling, desalination plants, pulp and paper industry |
| Duplex 2304 | 23% Cr, 4% Ni | Wastewater treatment, food processing, and storage |
| Super Duplex 2507 | 25% Cr, 7% Ni, 4% Mo, 0.3% N | High-stress applications, offshore oil rigs, and chemical processing |
| Duplex 3RE60 | 22% Cr, 5% Ni, 3% Mo, 0.2% N | High-temperature environments, heat exchangers |
Available Sizes of Duplex Pipe (MM)
| Size (MM) | Size (MM) |
|---|---|
| 15 | 20 |
| 25 | 32 |
| 40 | 50 |
| 65 | 80 |
| 100 | 125 |
| 150 | 200 |
| 250 | 300 |
| 350 | 400 |
| 450 | 500 |
| 600 | 700 |
Chemical Properties of Duplex Stainless Steel
| Element | Composition (%) |
|---|---|
| Iron (Fe) | 65.0 - 70.0 |
| Chromium (Cr) | 18.0 - 28.0 |
| Nickel (Ni) | 4.5 - 8.0 |
| Molybdenum (Mo) | 2.5 - 5.0 |
| Manganese (Mn) | 0.5 - 2.0 |
| Silicon (Si) | 0.5 - 1.0 |
| Carbon (C) | 0.03 max |
| Sulfur (S) | 0.02 max |
Mechanical Properties of Duplex Stainless Steel
| Property | Value |
|---|---|
| Tensile Strength (MPa) | 620 - 800 |
| Yield Strength (MPa) | 450 - 600 |
| Elongation (%) | 25 |
| Hardness (HB) | 200 - 300 |
| Impact Toughness (J) | 40 |
Duplex Pipe – Physical & Thermal Properties
Density of Duplex Pipe
| Property | Metric | Imperial |
|---|---|---|
| Density | 7,800 kg/m³ | 0.28 lb/in³ |
Melting Point of Duplex Pipe
| Property | Metric | Imperial |
|---|---|---|
| Melting Point | 1,400 - 1,450 °C | 2,552 - 2,642 °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 - 1,000 | 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 10216-5 | 1.4462 | S32205 |
Manufacturing Process & Heat Treatment of Duplex Pipes
Annealing
Annealing is a critical heat treatment process used in the manufacturing of duplex pipes. It involves heating the duplex stainless steel to a temperature range of 1020°C to 1080°C, followed by a controlled cooling process. This treatment enhances the ductility and toughness of the material, reducing residual stresses and improving the overall mechanical properties, which are essential for applications in corrosive environments.
Forging
Forging of duplex pipes is performed to improve the mechanical properties and structural integrity of the steel. The forging process involves shaping the metal by applying compressive forces, typically at elevated temperatures between 900°C and 1200°C. This process refines the grain structure, enhances strength, and increases fatigue resistance, making the forged duplex pipes suitable for high-pressure and high-temperature applications.
Hardening & Tempering
| Process | Temperature Range (°C) | Quenching Medium | Purpose |
|---|---|---|---|
| Hardening | 1020 - 1100 | Water or Oil | To increase hardness and strength |
| Tempering | 300 - 600 | Air | To reduce brittleness and relieve stresses |
| Stress Relieving | 600 - 750 | Air | To enhance ductility and toughness |
The combination of these processes ensures that duplex pipes possess the desired mechanical properties, making them ideal for various industrial applications, including oil and gas, chemical processing, and marine environments.
Various Types
Duplex Stainless Steel Pipe
- OD: 1/2" to 36"
- Condition: Annealed, Pickled
- Applications: Oil & Gas, Chemical Processing, Marine
Duplex Pipe Fittings
- Dimensions: 1/2" to 12"
- Condition: Hot Finished, Cold Drawn
- Applications: Power Generation, Water Treatment
Duplex Steel Welded Pipe
- OD: 1" to 24"
- Condition: Seamless, Welded
- Applications: Construction, Aerospace
Duplex Steel Seamless Pipe
- Dimensions: 1/2" to 16"
- Condition: Solution Treated
- Applications: Pharmaceutical, Food Processing
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 | $2.50 – $2.80 | ₹205 – ₹220 |
| Duplex 2205 | 6 mm | $2.60 – $2.90 | ₹215 – ₹230 |
| Duplex 2205 | 10 mm | $2.70 – $3.00 | ₹225 – ₹240 |
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 Indonesia
- Stainless Steel Pipe Exporters in Indonesia
- Duplex Pipe Manufacturers in Indonesia
- Industrial Pipe Exporters Indonesia
- Nickel Alloy Pipe Suppliers in Indonesia
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