Duplex S31803 Spool exporter in Canada
Duplex S31803 Spool exporter in Canada specializes in providing high-quality duplex stainless steel spools known for their excellent corrosion resistance and superior mechanical properties. These spools, manufactured from the S31803 grade, offer a balanced combination of austenitic and ferritic stainless steel, making them ideal for demanding industrial applications. The product is widely used in sectors requiring durability and resistance to stress corrosion cracking, such as oil and gas, petrochemical, and marine industries.
The S31803 duplex stainless steel spools feature enhanced tensile strength and toughness, which allow them to perform effectively under high pressure and extreme temperature conditions. Typically, these spools are fabricated to precise specifications, including custom dimensions and welding requirements, ensuring seamless integration into piping systems. Their robust microstructure provides excellent resistance to chloride-induced corrosion, which is essential for offshore and chemical processing environments.
Manufacturers in Canada focus on strict quality control and adherence to international standards such as ASTM A790/A789 for duplex stainless steel pipe and spool fabrication. This guarantees that every spool exported meets global industrial requirements, including certifications for chemical composition, mechanical testing, and non-destructive examinations. Such compliance assures buyers of the product's reliability and longevity in critical infrastructure projects.
Applications for these duplex stainless steel spools extend across various industries, including power generation, wastewater treatment, and pulp and paper processing. Their ability to withstand harsh environments and corrosive media makes them a preferred choice for piping networks that transport aggressive fluids. Furthermore, their weldability and resistance to thermal fatigue contribute to reduced maintenance costs and extended service life.
Export readiness is a key aspect of suppliers based in Canada, with optimized logistics and packaging methods designed to preserve the integrity of the spools during transit. Exporters ensure timely delivery and support with customs documentation, making them a reliable partner for international industrial buyers seeking premium duplex stainless steel spool products. This comprehensive approach facilitates smooth procurement processes and supports large-scale engineering projects worldwide.
Lead Time
2–7 weeks depending on size
Delivery Terms
FOB, CIF, DDP
Shipping Modes
Sea / Air / Express
Why Duplex S31803 Spool exporter in Canada 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 S31803 Spool exporter in Canada
- 2. How to Choose the Right Manufacturer
- 3.Comparison of Duplex S31803 Spool exporter in Canada
- 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 S31803 Spool exporter in Canada
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 S31803 Spool exporter in Canada
| 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 S31803 Spool
- ✔ High strength and excellent corrosion resistance
- ✔ Suitable for a wide range of applications in harsh environments
- ✔ Cost-effective solution compared to other stainless steels
- ✔ Good weldability and fabrication properties
- ✔ Enhanced durability and resistance to stress corrosion cracking
- ✔ Available in various sizes and configurations for diverse requirements
Technical Overview of Duplex S31803
| Product | Composition | Usage | Standards |
|---|---|---|---|
| Duplex S31803 Spool | Fe, 22% Cr, 5% Ni, 3% Mo, 0.17% N | Used in oil and gas, chemical processing, and marine applications | ASTM A240, ASTM A789, ASME SA240 |
| Duplex S31803 Pipe | Fe, 22% Cr, 5% Ni, 3% Mo, 0.17% N | High-pressure applications requiring corrosion resistance | ASTM A790, ASME SA790 |
| Duplex S31803 Fittings | Fe, 22% Cr, 5% Ni, 3% Mo, 0.17% N | Connecting pipelines in aggressive environments | ASTM A815, ASME SA815 |
Specifications Table
| Material | Duplex S31803 |
|---|---|
| Grades | S31803, S32205 |
| Standard | ASTM A790, ASME SA790 |
| Size Range | 1" to 24" (25 mm to 610 mm) |
| Length | Custom lengths available up to 40 feet (12 meters) |
| Form | Spool |
Available Grades Table
| Product | Composition | Applications |
|---|---|---|
| Duplex S31803 | Fe, 22% Cr, 5% Ni, 3% Mo, 0.17% N | Oil and gas, marine applications, chemical processing |
| Duplex S32205 | Fe, 22% Cr, 5.5% Ni, 3.2% Mo, 0.2% N | Petrochemical, pulp and paper, power generation |
| Duplex S32750 | Fe, 25% Cr, 7% Ni, 4% Mo, 0.3% N | Seawater applications, chemical tanks, offshore platforms |
| Duplex S31803-L | Fe, 22% Cr, 5% Ni, 3% Mo, 0.12% N | Food processing, pharmaceutical, water treatment |
| Duplex S32101 | Fe, 21% Cr, 5% Ni, 3% Mo, 0.1% N | Marine environments, construction, automotive |
Available Sizes of Duplex S31803 (MM)
| Size (MM) | Size (MM) |
|---|---|
| 50 | 100 |
| 60 | 110 |
| 70 | 120 |
| 80 | 130 |
| 90 | 140 |
| 100 | 150 |
| 120 | 160 |
| 140 | 180 |
| 160 | 200 |
| 180 | 220 |
Chemical Properties of Duplex S31803
| Element | Composition (%) |
|---|---|
| Chromium (Cr) | 22.0 - 23.0 |
| Nickel (Ni) | 4.5 - 6.5 |
| Molybdenum (Mo) | 3.0 - 3.5 |
| Titanium (Ti) | 0.1 - 0.2 |
| Manganese (Mn) | 0.8 - 1.5 |
| Silicon (Si) | 0.5 max |
| Carbon (C) | 0.03 max |
| Sulfur (S) | 0.01 max |
Mechanical Properties of Duplex S31803
| Property | Value |
|---|---|
| Tensile Strength (MPa) | 620 - 850 |
| Yield Strength (MPa) | 450 minimum |
| Elongation (% in 50 mm) | 25 minimum |
| Hardness (Brinell) | 250 maximum |
| Impact Toughness (J at -50°C) | ≥ 40 |
Duplex S31803 – Physical & Thermal Properties
Density of Duplex S31803
| Property | Metric | Imperial |
|---|---|---|
| Density | 7.8 g/cm³ | 0.28 lb/in³ |
Melting Point of Duplex S31803
| Property | Metric | Imperial |
|---|---|---|
| Melting Point | 1425 - 1475 °C | 2600 - 2700 °F |
Specific Heat of Duplex S31803
| Specific Heat of Duplex S31803 | ||
|---|---|---|
| Specific Heat (J/kg·K) | Temperature Range (°C) | Condition |
| 500 | 20 - 100 | Annealed |
| 460 | 100 - 400 | Annealed |
| 450 | 400 - 800 | Annealed |
Electrical Resistivity of Duplex S31803
| Electrical Resistivity | ||
|---|---|---|
| Value (µΩ·m) | Temperature (°C) | Treatment or Condition |
| 0.72 | 20 | As hot rolled |
| 0.75 | 100 | |
| 0.78 | 200 | |
| 0.81 | 300 | |
| 0.84 | 400 | |
Equivalent of Duplex S31803
| Standard | Werkstoff Nr. | UNS |
|---|---|---|
| ASTM A790 | 1.4462 | S31803 |
| EN 10088-2 | X2CrNiMoN22-5-3 | S31803 |
Manufacturing Process & Heat Treatment of Duplex S31803
Annealing
Annealing of Duplex S31803 is performed to relieve internal stresses and enhance ductility. The material is heated to a temperature range of 1020°C to 1100°C for a controlled period, followed by air cooling. This process ensures a uniform microstructure and improves mechanical properties.
Forging
Forging of Duplex S31803 involves heating the material to approximately 1150°C, followed by deformation using mechanical presses or hammers. This process enhances the strength and toughness of the material while refining the grain structure, resulting in improved performance in demanding applications.
Hardening & Tempering
| Process | Temperature Range (°C) | Quenching Medium | Purpose |
|---|---|---|---|
| Hardening | 1000 - 1100 | Oil | To increase hardness and strength |
| Tempering | 500 - 700 | Air | To reduce brittleness and improve toughness |
| Stress Relieving | 300 - 600 | Air | To eliminate residual stresses |
The combination of these processes results in a material that exhibits excellent mechanical properties, corrosion resistance, and durability, making Duplex S31803 an ideal choice for various industrial applications.
Various Types
Duplex S31803 Spool - Standard
- Diameter: 2" - 24"
- Condition: Hot Rolled, Annealed
- Applications: Oil & Gas, Chemical Processing
Duplex S31803 Spool - Customized
- Diameter: 1" - 36"
- Condition: Cold Worked, Pickled
- Applications: Marine Applications, Pulp & Paper
Duplex S31803 Spool - High Pressure
- Diameter: 3" - 12"
- Condition: Solution Annealed
- Applications: High Pressure Systems, Power Generation
Duplex S31803 Spool - Specialty
- Diameter: 4" - 20"
- Condition: As Forged, Passivated
- Applications: Aerospace, 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 S31803
| Material Grade | Thickness | Price (USD / Kg) | Price (INR / Kg) |
|---|---|---|---|
| Duplex S31803 | 3 mm | $4.50 – $5.00 | ₹375 – ₹420 |
| Duplex S31803 | 6 mm | $4.30 – $4.80 | ₹360 – ₹400 |
| Duplex S31803 | 10 mm | $4.10 – $4.60 | ₹340 – ₹380 |
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 S31803.
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 S31803 Pipe Supplier in Canada
- Duplex S32205 Flange Manufacturer in Canada
- Duplex Stainless Steel Fittings Exporter in Canada
- Duplex Steel S31803 Sheet Distributor in Canada
- Duplex S31803 Bar Stock Supplier in Canada
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