Duplex 2205 Spool
Duplex 2205 Spool is a high-performance piping component manufactured from Duplex 2205 stainless steel, known for its exceptional strength and corrosion resistance. This material combines the benefits of austenitic and ferritic stainless steels, offering superior durability in demanding industrial environments. The spool typically consists of welded pipe sections and flanges, precisely fabricated to meet stringent dimensional and quality standards required for critical process systems.
Engineered for use in sectors such as oil and gas, chemical processing, and marine applications, these spools are designed to withstand harsh conditions including chloride-induced stress corrosion cracking and high-pressure operations. The duplex stainless steel grade 2205 offers a balanced microstructure that enhances mechanical properties and resistance to pitting and crevice corrosion, making it ideal for transporting aggressive fluids and gases.
Specifications for these spools often include compliance with international standards such as ASTM A789 or A182, ensuring consistent material quality and performance. The fabrication process involves precise cutting, welding, and heat treatment to maintain the integrity of the duplex structure, with thorough non-destructive testing to verify weld quality and absence of defects. This attention to detail guarantees reliability and longevity in service.
Applications extend beyond traditional piping systems to include heat exchangers, pressure vessels, and offshore platforms where safety and operational efficiency are paramount. The robust nature of the duplex grade allows for reduced wall thickness without compromising strength, offering cost savings in material and installation. These attributes make the spools a preferred choice for engineers and procurement specialists aiming for optimal lifecycle performance.
For export readiness, manufacturers ensure that each spool is accompanied by comprehensive documentation, including mill test reports, material certificates, and quality assurance records. Packaging is designed to protect the product during transit, accommodating international shipping requirements and customs regulations. This focus on compliance and traceability supports seamless integration into global supply chains and project timelines.
Lead Time
2–7 weeks depending on size
Delivery Terms
FOB, CIF, DDP
Shipping Modes
Sea / Air / Express
Why Duplex 2205 Spool 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 2205 Spool
- 2. How to Choose the Right Manufacturer
- 3.Comparison of Duplex 2205 Spool
- 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 2205 Spool
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 2205 Spool
| 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 2205 Spool
- ✔ Superior corrosion resistance, especially in chloride environments
- ✔ High strength, providing enhanced mechanical performance
- ✔ Excellent weldability for easier fabrication and assembly
- ✔ Good resistance to stress corrosion cracking
- ✔ Wide temperature range suitability, from cryogenic to elevated temperatures
- ✔ Cost-effective alternative to more expensive super duplex grades
Technical Overview of Duplex 2205 Spool
| Product | Composition | Usage | Standards |
|---|---|---|---|
| Duplex 2205 Spool | 22% Cr, 5% Ni, 3% Mo, 0.17% N | Used in piping systems for oil and gas, chemical processing, and marine environments. | ASTM A790, ASTM A928, ASME SA790 |
| Duplex 2205 Spool | 22% Cr, 5% Ni, 3% Mo, 0.17% N | Excellent resistance to stress corrosion cracking and pitting. | EN 10088-3, NACE MR0175 |
| Duplex 2205 Spool | 22% Cr, 5% Ni, 3% Mo, 0.17% N | Ideal for high-strength applications requiring good weldability. | ISO 15156, ASTM A269 |
Specifications Table
| Material | Duplex Stainless Steel 2205 |
|---|---|
| Grades | UNS S32205 |
| Standard | ASTM A790 / A790M |
| Size Range | 1/2" to 24" NPS |
| Length | Custom lengths available, up to 40 feet |
| Form | Spool |
Available Grades Table
| Product | Composition | Applications |
|---|---|---|
| Duplex 2205 Spool | Fe, 22% Cr, 5% Ni, 3% Mo | Oil and gas, chemical processing, marine environments |
| Duplex 2205 Spool | Fe, 25% Cr, 7% Ni, 4% Mo | Flue gas desulfurization, pulp and paper production |
| Duplex 2205 Spool | Fe, 21% Cr, 6% Ni, 3% Mo | Wastewater treatment, pressure vessels |
| Duplex 2205 Spool | Fe, 24% Cr, 5% Ni, 3.5% Mo | Heat exchangers, storage tanks |
| Duplex 2205 Spool | Fe, 23% Cr, 6% Ni, 3% Mo | Shipbuilding, offshore structures |
Available Sizes of Duplex 2205 Spool (MM)
| Size (MM) | Size (MM) |
|---|---|
| 50 | 60 |
| 70 | 80 |
| 90 | 100 |
| 110 | 120 |
| 130 | 140 |
| 150 | 160 |
| 170 | 180 |
| 190 | 200 |
| 250 | 300 |
| 350 | 400 |
Chemical Properties of Duplex 2205 Spool
| Element | Composition (%) |
|---|---|
| Chromium (Cr) | 22.0 - 23.0 |
| Nickel (Ni) | 4.5 - 6.5 |
| Molybdenum (Mo) | 3.0 - 3.5 |
| Tungsten (W) | 0.0 - 0.5 |
| Iron (Fe) | Balance |
| Manganese (Mn) | 0.0 - 2.0 |
| Silicon (Si) | 0.0 - 1.0 |
| Carbon (C) | 0.0 - 0.03 |
Mechanical Properties of Duplex 2205 Spool
| Property | Value |
|---|---|
| Tensile Strength (MPa) | 620 - 850 |
| Yield Strength (MPa) | 450 min |
| Elongation (%) | 25 min |
| Hardness (HB) | 248 max |
| Impact Toughness (J at -40°C) | ≥ 40 |
Duplex 2205 Spool – Physical & Thermal Properties
Density of Duplex 2205 Spool
| Property | Metric | Imperial |
|---|---|---|
| Density | 7.8 g/cm³ | 0.28 lb/in³ |
Melting Point of Duplex 2205 Spool
| Property | Metric | Imperial |
|---|---|---|
| Melting Point | 1425 - 1475 °C | 2600 - 2700 °F |
Specific Heat of Duplex 2205 Spool
| Specific Heat of Duplex 2205 Spool | ||
|---|---|---|
| Specific Heat (J/kg·K) | Temperature Range (°C) | Condition |
| 500 | 20 - 100 | Room Temperature |
| 600 | 100 - 600 | High Temperature |
| 700 | 600 - 1000 | Very High Temperature |
Electrical Resistivity of Duplex 2205 Spool
| Electrical Resistivity | ||
|---|---|---|
| Value (µΩ·m) | Temperature (°C) | Treatment or Condition |
| 0.75 | 20 | As Rolled |
| 0.80 | 100 | |
| 0.85 | 200 | |
| 0.90 | 300 | |
| 0.95 | 400 | |
Equivalent of Duplex 2205 Spool
| Standard | Werkstoff Nr. | UNS |
|---|---|---|
| ASTM A240 | 1.4462 | S32205 |
| EN 10088-1 | X2CrNiMoN22-5-3 | S32205 |
Manufacturing Process & Heat Treatment of Duplex 2205 Spool
Annealing
The annealing process for Duplex 2205 involves heating the material to a temperature range of 1020°C to 1100°C, followed by controlled cooling. This process helps relieve internal stresses, improve ductility, and enhance the overall mechanical properties of the steel.
Forging
Forging of Duplex 2205 is typically conducted at temperatures between 1100°C and 1200°C. This process involves shaping the material by applying compressive forces, which refines the grain structure and enhances strength and toughness.
Hardening & Tempering
| Process | Temperature Range (°C) | Quenching Medium | Purpose |
|---|---|---|---|
| Hardening | 1000 - 1100 | Oil or Water | To increase hardness and strength. |
| Tempering | 600 - 800 | Air | To reduce brittleness and improve toughness. |
| Stress Relieving | 300 - 500 | Air | To relieve residual stresses from the manufacturing process. |
The combination of these processes ensures that Duplex 2205 spools possess optimal mechanical properties, making them suitable for various industrial applications, particularly in environments with high corrosion risks.
Various Types
Duplex 2205 Spool - Standard
- Diameter: 2 inches, Length: 12 inches
- Condition: Hot Finished
- Applications: Oil & Gas, Chemical Processing
Duplex 2205 Spool - High Pressure
- Diameter: 3 inches, Length: 10 inches
- Condition: Cold Drawn
- Applications: Power Generation, Marine Applications
Duplex 2205 Spool - Custom
- Diameter: 4 inches, Length: 8 inches
- Condition: Annealed
- Applications: Pulp and Paper, Water Treatment
Duplex 2205 Spool - Fabricated
- Diameter: 6 inches, Length: 15 inches
- Condition: Manufactured
- Applications: Aerospace, Construction
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 2205 Spool
| Material Grade | Thickness | Price (USD / Kg) | Price (INR / Kg) |
|---|---|---|---|
| Duplex 2205 Spool | 3 mm | $5.00 – $5.50 | ₹410 – ₹450 |
| Duplex 2205 Spool | 6 mm | $4.80 – $5.30 | ₹390 – ₹440 |
| Duplex 2205 Spool | 10 mm | $4.60 – $5.10 | ₹370 – ₹430 |
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 2205 Spool.
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