Super Duplex Spool exporter in Qatar
Super Duplex Spool exporter in Qatar is recognized for delivering high-quality, corrosion-resistant piping solutions tailored for demanding industrial environments. These spools are fabricated using super duplex stainless steel, known for its exceptional strength and superior resistance to chloride stress corrosion cracking. Ideal for oil and gas, petrochemical, and marine applications, the product ensures long-lasting performance under extreme conditions.
The spools are manufactured following stringent industry standards, incorporating precise welding and testing processes to guarantee dimensional accuracy and structural integrity. Typically composed of a balanced microstructure with approximately 22% chromium, 5% nickel, and 3% molybdenum, these materials offer excellent resistance to pitting and crevice corrosion. This makes them suitable for use in offshore platforms, refineries, and chemical processing plants.
Designed to meet the rigorous demands of global markets, the export-ready spools undergo comprehensive quality assurance protocols including hydrostatic testing, non-destructive examination, and traceability documentation. This ensures that clients receive products compliant with international specifications such as ASTM A182 and ASME B31.3, facilitating seamless integration into existing pipeline systems.
With a focus on durability and performance, these super duplex spool assemblies support the transportation of aggressive fluids and gases at high pressures and temperatures. Their robust construction reduces maintenance frequency and extends service life, offering significant cost benefits over conventional stainless steel options. Industrial buyers can rely on timely delivery and customized solutions to match project requirements.
Lead Time
2–7 weeks depending on size
Delivery Terms
FOB, CIF, DDP
Shipping Modes
Sea / Air / Express
Why Super Duplex Spool 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 Super Duplex Spool exporter in Qatar
- 2. How to Choose the Right Manufacturer
- 3.Comparison of Super Duplex Spool 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 Super Duplex Spool 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 Super Duplex Spool 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 Super Duplex Spool
- ✔ Exceptional corrosion resistance in harsh environments
- ✔ High mechanical strength and durability
- ✔ Excellent weldability for seamless integration
- ✔ Superior resistance to pitting and crevice corrosion
- ✔ Suitable for high-pressure applications
- ✔ Compliant with international standards and specifications
Technical Overview of Super Duplex Spool
| Product | Composition | Usage | Standards |
|---|---|---|---|
| Super Duplex Steel S32750 | 25% Chromium, 7% Nickel, 4% Molybdenum, Balance Iron | Used in oil and gas, chemical processing, and marine applications | ASTM A790, ASME SA790 |
| Super Duplex Steel S32760 | 26% Chromium, 8% Nickel, 3.5% Molybdenum, Balance Iron | Ideal for high-stress environments with corrosive conditions | ASTM A928, ASME SA928 |
| Super Duplex Pipe Spools | Various grades of Super Duplex Alloy | Fabricated for piping systems in harsh environments | API 5L, ISO 15156 |
Specifications Table
| Material | Super Duplex Stainless Steel |
|---|---|
| Grades | S32750, S32760 |
| Standard | ASTM A790, ASTM A928 |
| Size Range | 1/2" to 24" (DN15 to DN600) |
| Length | Up to 12 meters |
| Form | Spool |
Available Grades Table
| Product | Composition | Applications |
|---|---|---|
| Super Duplex 2507 | Cr 25%, Ni 7%, Mo 4%, N 0.27% | Oil and gas, chemical processing, marine environments |
| Super Duplex 2707 | Cr 27%, Ni 9%, Mo 4%, N 0.3% | Desalination plants, pressure vessels, offshore structures |
| Super Duplex 2205 | Cr 22%, Ni 5.6%, Mo 3.2%, N 0.14% | Pipelines, storage tanks, heat exchangers |
| Super Duplex 2507 F51 | Cr 25%, Ni 7%, Mo 4%, N 0.20% | Marine applications, chemical tanks, pulp and paper industry |
| Super Duplex 2507 S32750 | Cr 25%, Ni 7%, Mo 4%, W 1% | High strength applications, petrochemical industries |
Available Sizes of Super Duplex Spool (MM)
| Size (MM) | Size (MM) |
|---|---|
| 25 | 50 |
| 38 | 63 |
| 45 | 80 |
| 60 | 90 |
| 76 | 100 |
| 90 | 125 |
| 100 | 150 |
| 125 | 200 |
| 150 | 250 |
| 200 | 300 |
Chemical Properties of Super Duplex Stainless Steel (SDSS)
| Element | Composition (%) |
|---|---|
| Chromium (Cr) | 24.0 - 26.0 |
| Nickel (Ni) | 6.0 - 8.0 |
| Molybdenum (Mo) | 3.0 - 5.0 |
| Nitrogen (N) | 0.24 - 0.30 |
| Manganese (Mn) | 0.5 - 1.0 |
| Silicon (Si) | 0.5 - 1.0 |
| Carbon (C) | 0.03 max |
| Phosphorus (P) | 0.03 max |
Mechanical Properties of Super Duplex Stainless Steel (SDSS)
| Property | Value |
|---|---|
| Tensile Strength (MPa) | 620 - 1000 |
| Yield Strength (MPa) | 450 - 700 |
| Elongation (%) | 25 |
| Hardness (HB) | 250 - 350 |
| Impact Toughness (J @ -40°C) | ≥ 40 |
Super Duplex Spool – Physical & Thermal Properties
Density of Super Duplex Spool
| Property | Metric | Imperial |
|---|---|---|
| Density | 7,800 kg/m³ | 0.28 lb/in³ |
Melting Point of Super Duplex Spool
| Property | Metric | Imperial |
|---|---|---|
| Melting Point | 1,300 - 1,400 °C | 2,372 - 2,552 °F |
Specific Heat of Super Duplex Spool
| Specific Heat of Super Duplex Spool | ||
|---|---|---|
| Specific Heat (J/kg·K) | Temperature Range (°C) | Condition |
| 500 | 20 - 100 | Solid |
| 600 | 100 - 600 | Solid |
| 700 | 600 - 1,000 | Solid |
Electrical Resistivity of Super Duplex Steel
| 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 Super Duplex
| Standard | Werkstoff Nr. | UNS |
|---|---|---|
| ASTM A790 | 1.4410 | S32750 |
| EN 10216-5 | 1.4501 | S32760 |
Manufacturing Process & Heat Treatment of Super Duplex Spool
Annealing
Annealing of Super Duplex Spools involves heating the material to a temperature range of 1050-1150°C, followed by controlled cooling. This process helps to relieve internal stresses, improve ductility, and enhance the overall microstructure of the steel, ensuring optimal performance in demanding applications.
Forging
The forging of Super Duplex Spools is conducted at temperatures between 1100-1300°C. This hot working process improves the mechanical properties of the steel by refining the grain structure, resulting in enhanced strength and toughness. Post-forging, the spools are subjected to cooling to stabilize their properties.
Hardening & Tempering
| Process | Temperature Range (°C) | Quenching Medium | Purpose |
|---|---|---|---|
| Hardening | 1000-1100 | Oil | To increase hardness and strength by transforming the microstructure to martensite. |
| Tempering | 600-800 | Air | To reduce brittleness and improve toughness after hardening. |
| Stress Relieving | 300-500 | Air | To relieve residual stresses induced during manufacturing processes. |
The manufacturing and heat treatment processes for Super Duplex Spools are critical in achieving the desired mechanical properties and corrosion resistance, making them suitable for various industrial applications, particularly in the oil and gas sector.
Various Types
Super Duplex Stainless Steel Spool
- Diameter: 1" to 24"
- Condition: Hot Finished / Cold Finished
- Applications: Oil & Gas, Chemical Processing, Marine
Super Duplex Welded Spool
- Diameter: 1" to 16"
- Condition: Annealed
- Applications: Power Generation, Water Treatment
Super Duplex Fabricated Spool
- Diameter: 2" to 20"
- Condition: Pickled and Passivated
- Applications: Heat Exchangers, Piping Systems
Super Duplex Seamless Spool
- Diameter: 1" to 12"
- Condition: As Rolled
- 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 Super Duplex Spool
| Material Grade | Thickness | Price (USD / Kg) | Price (INR / Kg) |
|---|---|---|---|
| Super Duplex | 3 mm | $5.50 – $6.00 | ₹450 – ₹490 |
| Super Duplex | 6 mm | $5.80 – $6.30 | ₹470 – ₹510 |
| Super Duplex | 10 mm | $6.00 – $6.50 | ₹490 – ₹530 |
Note: Prices are indicative and may vary based on size, quantity, raw material cost, and delivery location. Contact us for the latest quotation for Super Duplex 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