Duplex Spool exporter in Bahrain
Duplex Spool exporter in Bahrain plays a crucial role in supplying high-quality piping solutions tailored for demanding industrial environments. These spools, fabricated from duplex stainless steel, combine excellent corrosion resistance with superior strength, making them ideal for sectors such as oil and gas, petrochemical, and marine industries. The material’s dual-phase microstructure enables enhanced durability, especially in chloride-rich and high-temperature conditions, which are common challenges in these applications.
The product type typically consists of pre-fabricated piping assemblies that include welded sections, flanges, valves, and fittings, all meticulously inspected to meet international standards. Duplex spools are engineered to withstand high pressure and aggressive chemical exposure, with common grades including UNS S31803 and S32205. Dimensions and configurations are customized according to project specifications, ensuring seamless integration within existing piping networks and facilitating efficient installation on site.
Export readiness is a key consideration, with suppliers in Bahrain adhering to stringent quality assurance protocols and documentation requirements. These include material test reports (MTRs), third-party certifications, and compliance with ASTM, ASME, and ISO standards. Packaging and handling are designed to prevent damage during transit, ensuring that the duplex stainless steel components arrive in optimal condition, ready for immediate deployment in critical infrastructure projects worldwide.
Industrial buyers benefit from the robust performance characteristics of these duplex spools, which reduce maintenance costs and downtime due to their resistance to stress corrosion cracking and pitting. The versatility of duplex stainless steel also supports a wide range of process fluids, including seawater, acids, and hydrocarbons, making these piping assemblies indispensable for enhancing operational reliability and safety in harsh environments.
By sourcing from experienced suppliers in Bahrain, companies gain access to expertly fabricated duplex spool assemblies that meet both technical and logistical demands. This strategic advantage ensures timely delivery, consistent quality, and compliance with global project requirements, ultimately contributing to the success of complex industrial ventures across various sectors.
Lead Time
2–7 weeks depending on size
Delivery Terms
FOB, CIF, DDP
Shipping Modes
Sea / Air / Express
Why Duplex Spool exporter in Bahrain 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 exporter in Bahrain
- 2. How to Choose the Right Manufacturer
- 3.Comparison of Duplex Spool exporter in Bahrain
- 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 exporter in Bahrain
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 exporter in Bahrain
| 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 corrosion resistance for longevity in harsh environments
- ✔ Excellent strength-to-weight ratio for improved efficiency
- ✔ Versatile applications in oil and gas, chemical, and marine industries
- ✔ Enhanced weldability for easier fabrication and repairs
- ✔ Superior mechanical properties at high temperatures
- ✔ Compliance with international standards for quality assurance
Technical Overview of Duplex Spool
| Product | Composition | Usage | Standards |
|---|---|---|---|
| Duplex Stainless Steel Spool | 22% Cr, 5% Ni, 3% Mo, Balance Fe | Used in oil and gas, chemical processing, and marine applications | ASTM A790, ASTM A928 |
| Duplex Stainless Steel Spool | 25% Cr, 7% Ni, 4% Mo, Balance Fe | Suitable for high strength and corrosion resistance in harsh environments | ASME SA790, EN 10088-3 |
| Duplex Stainless Steel Spool | Duplex 2205 (S31803/S32205) | Commonly used for pressure vessels and piping systems | API 5L, NACE MR0175 |
Specifications Table
| Material | Duplex Stainless Steel |
|---|---|
| Grades | S32205, S31803 |
| Standard | ASTM A790, ASTM A928 |
| Size Range | 1/2" to 24" (NPS) |
| Length | Up to 12 meters |
| 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 | Marine environments, petrochemical |
| Duplex 2304 | 23% Cr, 4% Ni | Water treatment, food processing |
| Super Duplex 2507 | 25% Cr, 7% Ni, 4% Mo, 0.3% N | High chloride environments, offshore platforms |
| Duplex 31803 | 22% Cr, 5% Ni, 3% Mo, 0.5% N | Pulp and paper, pharmaceutical |
Available Sizes of Duplex Spool (MM)
| Size (MM) | Size (MM) |
|---|---|
| 25 | 50 |
| 32 | 63 |
| 40 | 76 |
| 50 | 89 |
| 63 | 102 |
| 76 | 114 |
| 89 | 127 |
| 102 | 140 |
| 114 | 152 |
| 127 | 168 |
Chemical Properties of Duplex Stainless Steel (UNS S32205)
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.03 max |
| Manganese (Mn) | 2.00 max |
| Silicon (Si) | 1.00 max |
| Chromium (Cr) | 22.0 - 23.0 |
| Nickel (Ni) | 4.5 - 6.5 |
| Molybdenum (Mo) | 3.0 - 5.0 |
| Nitrogen (N) | 0.08 - 0.20 |
| Iron (Fe) | Balance |
Mechanical Properties of Duplex Stainless Steel
| Property | Value |
|---|---|
| Tensile Strength | 620 - 850 MPa |
| Yield Strength | 450 - 600 MPa |
| Elongation | 25% min |
| Hardness (Brinell) | 250 - 300 HB |
| Impact Toughness | ≥ 40 J at -40°C |
Duplex Steel – Physical & Thermal Properties
Density of Duplex Steel
| Property | Metric | Imperial |
|---|---|---|
| Density | 7,800 kg/m³ | 490 lb/ft³ |
Melting Point of Duplex Steel
| Property | Metric | Imperial |
|---|---|---|
| Melting Point | 1,450 °C | 2,642 °F |
Specific Heat of Duplex Steel
| Specific Heat of Duplex Steel | ||
|---|---|---|
| Specific Heat (J/kg·K) | Temperature Range (°C) | Condition |
| 500 | 20-100 | Solid |
| 600 | 100-400 | Solid |
| 700 | 400-800 | Solid |
Electrical Resistivity of Duplex Stainless Steel
| Electrical Resistivity | ||
|---|---|---|
| Value (µΩ·m) | Temperature (°C) | Treatment or Condition |
| 0.72 | 20 | As-rolled |
| 0.75 | 100 | |
| 0.78 | 200 | |
| 0.80 | 300 | |
| 0.83 | 400 | |
Equivalent of Duplex Stainless Steel Spool
| Standard | Werkstoff Nr. | UNS |
|---|---|---|
| EN 1.4462 | Duplex 2205 | S32205 |
| ASTM A240 | UNS S32205 | S32205 |
Manufacturing Process & Heat Treatment of Duplex Spool
Annealing
Annealing of duplex spools involves heating the material to a temperature range of 1000-1100°C, followed by controlled cooling. This process helps to reduce internal stresses and enhance ductility, improving the overall mechanical properties of the steel.
Forging
Forging of duplex spools is carried out at high temperatures, typically between 1050-1200°C. This process involves shaping the metal using compressive forces, which refines the grain structure and enhances the strength and toughness of the final product.
Hardening & Tempering
| Process | Temperature Range (°C) | Quenching Medium | Purpose |
|---|---|---|---|
| Hardening | 1020-1100 | Oil | To increase hardness and wear resistance |
| Tempering | 600-800 | Air | To reduce brittleness and improve toughness |
| Stress Relieving | 600-700 | Air | To relieve residual stresses from welding and machining |
The combination of these manufacturing and heat treatment processes ensures that duplex spools meet the stringent quality standards required for global steel exports, providing enhanced durability and performance in various applications.
Various Types
Duplex Stainless Steel Spool
- Diameter: 2" to 24"
- Condition: ASTM A790
- Applications: Oil & Gas, Chemical Processing
Duplex Welded Spool
- Diameter: 1" to 12"
- Condition: Hot Finished
- Applications: Marine, Pulp and Paper
Duplex Fabricated Spool
- Diameter: 3" to 16"
- Condition: Pickled and Passivated
- Applications: Water Treatment, Power Generation
Duplex Sanitary Spool
- Diameter: 1.5" to 10"
- Condition: Polished
- Applications: Food and Beverage, Pharmaceutical
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 | $3.50 – $4.00 | ₹290 – ₹330 |
| Duplex Spool | 6 mm | $3.80 – $4.30 | ₹310 – ₹350 |
| Duplex Spool | 10 mm | $4.00 – $4.50 | ₹330 – ₹370 |
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