Super Duplex Spool exporterny
Super Duplex Spool exporterny specializes in delivering high-quality piping components crafted from super duplex stainless steel, known for its exceptional strength and corrosion resistance. These spools are precision-fabricated to meet stringent industry standards, ensuring durability and reliability in demanding environments. As a critical component in piping systems, they facilitate seamless connections and efficient fluid transfer, making them indispensable in sectors requiring robust material performance.
The super duplex grade used in these spools combines the benefits of austenitic and ferritic stainless steels, offering superior resistance to chloride-induced stress corrosion cracking and pitting. Typically, the material conforms to standards such as ASTM A182 F51/F53, providing high tensile strength, excellent weldability, and enhanced toughness. These properties make the spools suitable for use in oil and gas, petrochemical, and marine applications where exposure to harsh chemicals and extreme pressures is common.
Manufactured with precise dimensional tolerances and subjected to rigorous quality control, these spools are equipped to handle high-pressure and high-temperature conditions. Their fabrication includes cutting, welding, and testing processes aligned with international codes like ASME B31.3 and ISO 9001, ensuring consistency and reliability. This meticulous attention to quality supports long service life and minimizes maintenance needs, crucial for industrial operations.
Export-ready super duplex spool assemblies are packaged and shipped following global logistics and customs protocols, enabling timely delivery to international clients. The supplier’s expertise in export documentation, packaging integrity, and compliance with destination country standards ensures smooth transit and installation. This export proficiency makes them a preferred partner for companies seeking dependable supply chains in the global industrial marketplace.
End users in sectors such as offshore drilling, chemical processing, and power generation benefit from the superior mechanical and chemical properties of these spools. Their ability to withstand corrosive environments and mechanical stresses extends operational uptime and safety. By sourcing from experienced exporters, buyers gain access to robust piping solutions that meet both technical requirements and international trade standards.
Lead Time
2–7 weeks depending on size
Delivery Terms
FOB, CIF, DDP
Shipping Modes
Sea / Air / Express
Why Super Duplex Spool exporterny 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 exporterny
- 2. How to Choose the Right Manufacturer
- 3.Comparison of Super Duplex Spool exporterny
- 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 exporterny
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 exporterny
| 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 aggressive environments
- ✔ High tensile strength and durability
- ✔ Excellent weldability and formability
- ✔ Suitable for high-temperature applications
- ✔ Low thermal expansion coefficient
- ✔ Compliance with international standards for quality
Technical Overview of Super Duplex Spool
| Product | Composition | Usage | Standards |
|---|---|---|---|
| Super Duplex Stainless Steel | Fe, Cr (25%), Ni (7%), Mo (4%), N (0.2%) | Oil and gas applications, chemical processing, marine environments | ASTM A790, ASTM A928 |
| Super Duplex Spool | Fe, Cr (25%), Ni (7%), Mo (4%), N (0.2%) | Piping systems, pressure vessels, heat exchangers | API 5L, ASME B36.10 |
| Super Duplex Flanges | Fe, Cr (25%), Ni (7%), Mo (4%), N (0.2%) | Joining piping systems, high-pressure applications | ASME B16.5, ISO 9001 |
Specifications Table
| Material | Super Duplex Stainless Steel |
|---|---|
| Grades | UNS S32750, UNS S32760 |
| Standard | ASTM A790, ASTM A928 |
| Size Range | 1/2" to 24" nominal pipe size |
| Length | Custom lengths up to 12 meters |
| Form | Spool |
Available Grades Table
| Product | Composition | Applications |
|---|---|---|
| Super Duplex 2507 | 25% Cr, 7% Ni, 4% Mo, < 0.03% C | Oil and gas, petrochemical, marine applications |
| Super Duplex 32750 | 25% Cr, 6% Ni, 1.5% Mo, < 0.02% C | Chemical processing, offshore structures |
| Super Duplex 32760 | 26% Cr, 8% Ni, 3% Mo, < 0.01% C | Seawater applications, pulp and paper industry |
| Super Duplex 2507-HR | 25% Cr, 7% Ni, 4% Mo, higher toughness | High-pressure applications, sour gas environments |
| Super Duplex 32205 | 22% Cr, 5% Ni, 3% Mo, < 0.03% C | Water treatment, power generation |
Available Sizes of Super Duplex Spool (MM)
| Size (MM) | Size (MM) |
|---|---|
| 25 | 50 |
| 32 | 63 |
| 40 | 76 |
| 50 | 89 |
| 63 | 102 |
| 76 | 114 |
| 89 | 127 |
| 102 | 140 |
| 114 | 168 |
| 140 | 219 |
Chemical Properties of Super Duplex Spool
| Element | Composition (%) |
|---|---|
| Iron (Fe) | Fe Balance |
| Chromium (Cr) | 24.0 - 26.0 |
| Nickel (Ni) | 6.0 - 8.0 |
| Molybdenum (Mo) | 3.0 - 4.0 |
| Tungsten (W) | 0.5 - 1.0 |
| Nitrogen (N) | 0.24 - 0.30 |
| Manganese (Mn) | 1.0 max |
| Silicon (Si) | 0.8 max |
Mechanical Properties of Super Duplex Stainless Steel
| Property | Value |
|---|---|
| Tensile Strength (MPa) | 620 - 800 |
| Yield Strength (MPa) | 450 - 600 |
| Elongation (%) | 25 |
| Hardness (HB) | 270 - 350 |
| Impact Toughness (J at -50°C) | ≥ 40 |
Super Duplex Spool - Physical & Thermal Properties
Density of Super Duplex Spool
| Property | Metric | Imperial |
|---|---|---|
| Density | 7.8 g/cm³ | 0.28 lb/in³ |
Melting Point of Super Duplex Spool
| Property | Metric | Imperial |
|---|---|---|
| Melting Point | 1350 - 1400 °C | 2462 - 2552 °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 | Annealed |
| 450 | 100 - 200 | Annealed |
| 600 | 200 - 300 | Annealed |
Electrical Resistivity of Super Duplex Spool Exporter
| Electrical Resistivity | ||
|---|---|---|
| Value (µΩ·m) | Temperature (°C) | Treatment or Condition |
| 0.75 | 20 | As-Received |
| 0.80 | 100 | |
| 0.85 | 200 | |
| 0.90 | 300 | |
| 0.95 | 400 | |
Equivalent of Super Duplex Spool exporter
| Standard | Werkstoff Nr. | UNS |
|---|---|---|
| ASTM A890 | 1.4501 | S32760 |
| EN 1.4410 | 1.4410 | S32750 |
Manufacturing Process & Heat Treatment of Super Duplex Spool
Annealing
Annealing of super duplex stainless steel spools is performed to relieve internal stresses and improve ductility. The process typically involves heating the material to a temperature range of 1020-1100°C, followed by a controlled cooling process. This treatment enhances the material's structural integrity and prepares it for further processing.
Forging
Forging of super duplex spools is conducted at elevated temperatures, generally between 1100-1200°C. This process enhances the mechanical properties of the material by refining the grain structure and improving strength. The forged spools are then subjected to cooling in air, which helps maintain the desired microstructure.
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 manufacturing and heat treatment processes for super duplex spools are critical in achieving the desired mechanical properties and corrosion resistance, ensuring their suitability for demanding industrial applications.
Various Types
Super Duplex Spool A
- Dimensions: 50mm to 150mm diameter
- Condition: Hot Rolled
- Applications: Oil and Gas, Marine, Chemical Processing
Super Duplex Spool B
- Dimensions: 100mm to 200mm diameter
- Condition: Cold Drawn
- Applications: Desalination, Pulp and Paper Industry
Super Duplex Spool C
- Dimensions: 80mm to 250mm diameter
- Condition: Pickled and Passivated
- Applications: Heat Exchangers, Pressure Vessels
Super Duplex Spool D
- Dimensions: 25mm to 300mm diameter
- Condition: Annealed
- 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 – ₹500 |
| Super Duplex | 6 mm | $5.30 – $5.80 | ₹440 – ₹490 |
| Super Duplex | 10 mm | $5.10 – $5.60 | ₹430 – ₹480 |
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