Duplex Spool supplier Riyadh
Duplex Spool supplier Riyadh offers high-quality, corrosion-resistant piping solutions specifically designed for demanding industrial environments. These spools are fabricated using duplex stainless steel, a material known for its excellent strength and superior resistance to chloride-induced stress corrosion cracking. Ideal for oil and gas, petrochemical, and desalination plants, these spools ensure longevity and reliability in harsh conditions.
The product type typically includes welded pipe sections, flanges, and fittings assembled into ready-to-install spools tailored to project specifications. Duplex stainless steel grades such as UNS S31803 and S32205 provide a balanced microstructure of austenite and ferrite, enhancing both mechanical properties and corrosion resistance. The fabrication process adheres to stringent industry standards like ASTM, ASME, and ISO to guarantee performance and safety in critical applications.
These industrial components play a crucial role in fluid transportation systems where high pressure and temperature conditions prevail. Their robustness supports applications in offshore platforms, chemical processing units, and power generation facilities. The duplex spools’ resistance to pitting and crevice corrosion makes them suitable for seawater handling and other aggressive media, reducing maintenance costs and downtime.
Suppliers based in Riyadh leverage advanced manufacturing capabilities and quality control measures to ensure that spools meet international export requirements. Comprehensive documentation, including material test reports and third-party certifications, accompanies each shipment. This export readiness ensures smooth customs clearance and compliance with global client specifications, making these products a reliable choice for international projects.
Industrial buyers seeking durable, high-performance piping solutions will find these duplex spools an excellent investment. Their tailored design, compliance with global standards, and suitability for extreme environments underscore their value in critical infrastructure projects. Partnering with a trusted supplier in Riyadh ensures access to expertly fabricated components supported by technical expertise and timely delivery.
Lead Time
2–7 weeks depending on size
Delivery Terms
FOB, CIF, DDP
Shipping Modes
Sea / Air / Express
Why Duplex Spool supplier Riyadh 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 Spool supplier Riyadh
- 2. How to Choose the Right Manufacturer
- 3.Comparison of Duplex Spool supplier Riyadh
- 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 Spool supplier Riyadh
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 Spool supplier Riyadh
| 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 Spool
- ✔ High resistance to pitting and crevice corrosion
- ✔ Excellent weldability and formability
- ✔ Enhanced strength-to-weight ratio
- ✔ Suitable for high-pressure applications
- ✔ Cost-effective solution for various industries
- ✔ Available in a range of sizes and thicknesses
Technical Overview of Duplex Spool
| Product | Composition | Usage | Standards |
|---|---|---|---|
| Duplex Stainless Steel Spool | 22% Cr, 5% Ni, 3% Mo | Oil and Gas, Chemical Processing | ASTM A790, ASME SA790 |
| Duplex Stainless Steel Spool | 25% Cr, 7% Ni, 4% Mo | Marine Applications, Desalination Plants | ASTM A928, ASME SA928 |
| Duplex Stainless Steel Spool | 22% Cr, 5% Ni, 0.5% N | Power Generation, Pulp and Paper | ISO 15156, NACE MR0175 |
Specifications Table
| Material | Duplex Stainless Steel |
|---|---|
| Grades | UNS S31803, UNS S32205 |
| Standard | ASTM A790, ASTM A928 |
| Size Range | 1/2" to 24" NPS |
| Length | Custom lengths up to 40 feet |
| Form | Spool |
Available Grades Table
| Product | Composition | Applications |
|---|---|---|
| Duplex 2205 | 22% Cr, 5% Ni, 3% Mo | Oil and gas, chemical processing |
| Duplex 2507 | 25% Cr, 7% Ni, 4% Mo | Desalination, pulp and paper, offshore oil |
| Duplex 2304 | 23% Cr, 4% Ni | Food processing, marine environments |
| Super Duplex 2507 | 25% Cr, 7% Ni, 4% Mo, 0.3% N | High chloride environments, petrochemical |
| Duplex 904L | 20% Cr, 25% Ni, 4.5% Mo | Pharmaceutical, chemical process industries |
Available Sizes of Duplex Spool (MM)
| Size (MM) | Size (MM) |
|---|---|
| 50 | 60 |
| 70 | 80 |
| 90 | 100 |
| 110 | 120 |
| 130 | 140 |
| 150 | 160 |
| 170 | 180 |
| 190 | 200 |
| 210 | 220 |
| 230 | 240 |
Chemical Properties of Duplex Stainless Steel
| Element | Composition (%) |
|---|---|
| Chromium (Cr) | 22.0 - 25.0 |
| Nickel (Ni) | 4.5 - 8.0 |
| Molybdenum (Mo) | 3.0 - 5.0 |
| Manganese (Mn) | 0.5 - 2.0 |
| Silicon (Si) | 0.5 - 1.0 |
| Carbon (C) | ≤ 0.03 |
| Sulfur (S) | ≤ 0.01 |
| Iron (Fe) | Balance |
Mechanical Properties of Duplex Stainless Steel
| Property | Value |
|---|---|
| Tensile Strength (MPa) | 620 - 850 |
| Yield Strength (MPa) | 450 - 600 |
| Elongation (% in 50 mm) | 25 |
| Hardness (HB) | 200 - 300 |
| Impact Energy (J at -40°C) | ≥ 40 |
Duplex Spool – Physical & Thermal Properties
Density of Duplex Spool
| Property | Metric | Imperial |
|---|---|---|
| Density | 7.8 g/cm³ | 0.28 lb/in³ |
Melting Point of Duplex Spool
| Property | Metric | Imperial |
|---|---|---|
| Melting Point | 1400 - 1450 °C | 2552 - 2642 °F |
Specific Heat of Duplex Spool
| Specific Heat of Duplex Spool | ||
|---|---|---|
| Specific Heat (J/kg·K) | Temperature Range (°C) | Condition |
| 500 | 20 - 100 | Annealed |
| 460 | 100 - 300 | Annealed |
| 400 | 300 - 600 | Annealed |
Electrical Resistivity of Duplex Steel
| Electrical Resistivity | ||
|---|---|---|
| Value (µΩ·m) | Temperature (°C) | Treatment or Condition |
| 0.70 | 20 | As-rolled |
| 0.72 | 100 | |
| 0.75 | 200 | |
| 0.78 | 300 | |
| 0.80 | 400 | |
Equivalent of Duplex Spool
| Standard | Werkstoff Nr. | UNS |
|---|---|---|
| EN 1.4462 | Duplex 2205 | S32205 |
| ASTM A240 | UNS S31803 | S31803 |
Manufacturing Process & Heat Treatment of Duplex Spool
Annealing
Annealing of duplex spools is performed to relieve internal stresses and improve ductility. The spools are heated to a temperature of approximately 1050-1150°C and held for a specific period before being slowly cooled in air. This process enhances the mechanical properties and ensures uniform microstructure throughout the material.
Forging
Forging is a critical step in the manufacturing of duplex spools, where heated duplex stainless steel is shaped into desired forms using mechanical hammers or presses. This process improves the strength and toughness of the material by refining the grain structure, resulting in enhanced performance under operational conditions.
Hardening & Tempering
| Process | Temperature Range (°C) | Quenching Medium | Purpose |
|---|---|---|---|
| Hardening | 1000-1100 | Oil | Increase hardness and strength |
| Tempering | 400-600 | Air | Reduce brittleness and improve toughness |
| Stabilization | 850-900 | Air | Enhance corrosion resistance and stability |
The manufacturing and heat treatment processes of duplex spools are designed to optimize their mechanical properties for various industrial applications. These processes ensure that the spools meet the stringent requirements of strength, durability, and corrosion resistance, making them suitable for demanding environments.
Various Types
Duplex Stainless Steel Spool A
- Diameter: 4 inches, Length: 12 inches
- Condition: New
- Applications: Oil and Gas, Chemical Processing
Duplex Stainless Steel Spool B
- Diameter: 6 inches, Length: 10 inches
- Condition: New
- Applications: Marine Applications, Wastewater Treatment
Duplex Stainless Steel Spool C
- Diameter: 8 inches, Length: 15 inches
- Condition: New
- Applications: Power Generation, Heat Exchangers
Duplex Stainless Steel Spool D
- Diameter: 10 inches, Length: 20 inches
- Condition: New
- Applications: Pulp and Paper Industry, 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 Spool
| Material Grade | Thickness | Price (USD / Kg) | Price (INR / Kg) |
|---|---|---|---|
| Duplex Spool | 3 mm | $2.50 – $3.00 | ₹207 – ₹248 |
| Duplex Spool | 6 mm | $2.70 – $3.20 | ₹224 – ₹266 |
| Duplex Spool | 10 mm | $3.00 – $3.50 | ₹248 – ₹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 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
- Duplex Steel Pipe Supplier Riyadh
- Duplex Fittings Supplier Riyadh
- Duplex Flanges Supplier Riyadh
- Stainless Steel Spool Supplier Riyadh
- Metal Fabrication Services Riyadh
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