Duplex Spool supplier Dammam
Duplex Spool supplier Dammam offers high-quality duplex stainless steel piping solutions designed to meet the rigorous demands of industrial applications. These spools are fabricated using duplex stainless steel, known for its excellent corrosion resistance, high strength, and durability, making them ideal for environments prone to chloride stress corrosion and high temperatures. As critical components in piping systems, these spools ensure reliable fluid transport in sectors such as oil and gas, petrochemical, and marine industries.
The duplex spools are manufactured to precise specifications, typically conforming to international standards like ASTM A789 or A182, ensuring consistent performance and compatibility with existing infrastructure. Their dual-phase microstructure combines the benefits of austenitic and ferritic stainless steels, offering superior mechanical properties and resistance to pitting and crevice corrosion. The spools are available in various sizes, thicknesses, and end preparations, tailored to client requirements for seamless integration in complex piping networks.
Applications for these duplex piping spools include offshore platforms, refineries, chemical processing plants, and desalination facilities where durability and safety are paramount. The material's resistance to stress corrosion cracking and its high tensile strength reduce maintenance costs and extend service life, providing significant operational advantages. Additionally, the spools can be custom-fabricated with flanged, butt-welded, or socket-welded ends to suit diverse system configurations.
Export readiness is a key focus in the production process, with stringent quality control measures such as non-destructive testing (NDT), dimensional inspection, and traceability documentation ensuring compliance with international shipping and industry regulations. Packaging is designed to protect the integrity of the spools during transit, facilitating safe delivery to global industrial hubs. This makes the supplier an excellent partner for companies seeking reliable duplex stainless steel piping components in the Middle East and beyond.
In summary, sourcing duplex stainless steel piping spools from a reputable supplier in Dammam guarantees access to robust, precision-engineered components tailored for demanding industrial environments. Their combination of superior material properties, extensive application versatility, and export-compliant manufacturing processes supports the operational efficiency and longevity of critical infrastructure projects worldwide.
Lead Time
2–7 weeks depending on size
Delivery Terms
FOB, CIF, DDP
Shipping Modes
Sea / Air / Express
Why Duplex Spool supplier Dammam 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 Dammam
- 2. How to Choose the Right Manufacturer
- 3.Comparison of Duplex Spool supplier Dammam
- 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 Dammam
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 Dammam
| 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 corrosion, making it ideal for harsh environments
- ✔ Excellent mechanical properties, ensuring durability and strength
- ✔ Cost-effective solution for various industrial applications
- ✔ Lightweight design for easy installation and handling
- ✔ Versatile compatibility with different piping systems
- ✔ Customized sizes and specifications available to meet project requirements
Technical Overview of Duplex Spool
| Product | Composition | Usage | Standards |
|---|---|---|---|
| Duplex Stainless Steel Spool | 25% Chromium, 5% Nickel, 3.5% Molybdenum | Oil and gas industry, chemical processing | ASTM A789, ASTM A790 |
| Duplex Stainless Steel Spool | 22% Chromium, 5% Nickel, 4% Molybdenum | Marine applications, pulp and paper industry | ASME SA789, ASME SA790 |
| Duplex Stainless Steel Spool | 24% Chromium, 7% Nickel, 3% Molybdenum | Power generation, water treatment | ISO 15156, NACE MR0175 |
Specifications Table
| Material | Duplex Stainless Steel |
|---|---|
| Grades | S31803, S32205 |
| Standard | ASTM A790/A790M |
| Size Range | 1/2" to 24" |
| Length | Up to 12 meters |
| Form | Spool |
Available Grades Table
| Product | Composition | Applications |
|---|---|---|
| Duplex 2205 | Fe, 22% Cr, 5% Ni, 3% Mo | Oil and gas, chemical processing |
| Duplex 2507 | Fe, 25% Cr, 7% Ni, 4% Mo | Seawater applications, chemical transport |
| Duplex 2304 | Fe, 23% Cr, 4% Ni | Food processing, waste treatment |
| Super Duplex 2507 | Fe, 25% Cr, 7% Ni, 4% Mo, 0.3% N | Pulp and paper, petrochemical industries |
| Duplex 31803 | Fe, 21% Cr, 5% Ni, 3% Mo, 0.1% N | Marine environments, heat exchangers |
Available Sizes of Duplex Spool (MM)
| Size (MM) | Size (MM) |
|---|---|
| 50 | 100 |
| 75 | 150 |
| 80 | 200 |
| 90 | 250 |
| 100 | 300 |
| 125 | 350 |
| 150 | 400 |
| 200 | 450 |
| 250 | 500 |
| 300 | 600 |
Chemical Properties of Duplex Stainless Steel
| Element | Composition (%) |
|---|---|
| Iron (Fe) | 64.0 - 70.0 |
| Chromium (Cr) | 18.0 - 28.0 |
| 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 max |
| Phosphorus (P) | 0.03 max |
Mechanical Properties of Duplex Stainless Steel
| Property | Value |
|---|---|
| Tensile Strength | 620 - 800 MPa |
| Yield Strength | 450 - 600 MPa |
| Elongation | 25% (minimum) |
| Hardness (HB) | 250 - 330 HB |
| Impact Toughness | ≥ 40 J at -40°C |
Duplex Spool – Physical & Thermal Properties
Density of Duplex Spool
| Property | Metric | Imperial |
|---|---|---|
| Density | 7,800 kg/m³ | 0.283 lb/in³ |
Melting Point of Duplex Spool
| Property | Metric | Imperial |
|---|---|---|
| Melting Point | 1,400 °C | 2,552 °F |
Specific Heat of Duplex Spool
| Specific Heat of Duplex Spool | ||
|---|---|---|
| Specific Heat (J/kg·K) | Temperature Range (°C) | Condition |
| 500 | 0 - 100 | Annealed |
| 450 | 100 - 400 | Normal |
| 400 | 400 - 800 | Tempered |
Electrical Resistivity of Duplex Steel
| Electrical Resistivity | ||
|---|---|---|
| Value (µΩ·m) | Temperature (°C) | Treatment or Condition |
| 0.075 | 20 | As Rolled |
| 0.078 | 100 | |
| 0.080 | 200 | |
| 0.085 | 300 | |
| 0.090 | 400 | |
Equivalent of Duplex Spool supplier Dammam
| Standard | Werkstoff Nr. | UNS |
|---|---|---|
| ASTM A790 | 1.4462 | S31803 |
| EN 10088-3 | X2CrNiMoN22-5-3 | S32205 |
Manufacturing Process & Heat Treatment of Duplex Spool
Annealing
The annealing process for duplex spools involves heating the material to a temperature range of 950°C to 1050°C, followed by controlled cooling. This treatment is designed to relieve internal stresses, enhance ductility, and improve the material's overall mechanical properties. The process ensures uniform microstructure and prepares the material for subsequent processing steps.
Forging
Forging of duplex spools is conducted at elevated temperatures, typically between 1100°C and 1250°C. This process involves shaping the material through mechanical deformation, which enhances its strength and toughness. The forging process is critical in achieving the desired dimensions and mechanical properties necessary for high-performance applications.
Hardening & Tempering
| Process | Temperature Range (°C) | Quenching Medium | Purpose |
|---|---|---|---|
| Hardening | 1020 - 1080 | Oil | Increase hardness and strength |
| Tempering | 600 - 700 | Air | Reduce brittleness and relieve stresses |
| Stress Relieving | 500 - 600 | Air | Minimize residual stresses from machining |
The combination of these processes ensures that duplex spools meet the stringent requirements for strength, durability, and resistance to corrosion, making them suitable for various industrial applications.
Various Types
Duplex Stainless Steel Spool
- Diameter: 2" to 12", Length: Customizable
- Condition: New, Unused
- Applications: Oil & Gas, Chemical Processing, Marine
Super Duplex Stainless Steel Spool
- Diameter: 3" to 10", Length: Customizable
- Condition: New, Unused
- Applications: Power Generation, Desalination, Pulp and Paper
Duplex Pipe Spool
- Diameter: 4" to 14", Length: Customizable
- Condition: New, Unused
- Applications: Water Treatment, HVAC Systems
Welded Duplex Spool
- Diameter: 2" to 8", Length: Customizable
- Condition: New, Unused
- Applications: Construction, Industrial Equipment
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 – ₹265 |
| 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
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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